def classify(self, examples, parameters=None):
if type(examples) == types.StringType:
testFilePath = examples
predictions = []
realClasses = []
exampleFile = open(examples,"rt")
for line in exampleFile.readlines():
realClasses.append(int(line.split(" ",1)[0].strip()))
exampleFile.close()
elif type(examples) == types.ListType:
examples, predictions = self.filterClassificationSet(examples, True)
Example.writeExamples(examples, self.tempDir+"/test.dat")
testFilePath = self.tempDir+"/test.dat"
args = [self.classifyBin]
if parameters != None:
self.__addParametersToSubprocessCall(args, parameters)
args += [testFilePath, self.tempDir+"/model", self.tempDir+"/predictions"]
#print args
subprocess.call(args, stdout = self.debugFile)
os.remove(self.tempDir+"/model")
predictionsFile = open(self.tempDir+"/predictions", "rt")
lines = predictionsFile.readlines()
predictionsFile.close()
#predictions = []
for i in range(len(lines)):
if type(examples) == types.ListType:
predictions.append( (examples[i],float(lines[i]),self.type,lines[i]) )
else:
predictions.append( ([None,realClasses[i]],float(lines[i]),self.type) )
return predictions
def buildExamplesForSentences(self, sentences, goldSentences, output, idFileTag=None, append=False):
examples = []
counter = ProgressCounter(len(sentences), "Build examples")
if append:
outfile = open(output, "at")
else:
outfile = open(output, "wt")
exampleCount = 0
for i in range(len(sentences)):
sentence = sentences[i]
goldSentence = [None]
if goldSentences != None:
goldSentence = goldSentences[i]
counter.update(1, "Building examples (" + sentence[0].getSentenceId() + "): ")
examples = self.buildExamples(sentence[0], goldSentence[0], append=append)
exampleCount += len(examples)
examples = self.preProcessExamples(examples)
ExampleUtils.appendExamples(examples, outfile)
outfile.close()
print >>sys.stderr, "Examples built:", exampleCount
print >>sys.stderr, "Features:", len(self.featureSet.getNames())
# IF LOCAL
if self.exampleStats.getExampleCount() > 0:
self.exampleStats.printStats()
# ENDIF
# Save Ids
if idFileTag != None:
print >>sys.stderr, "Saving class names to", idFileTag + ".class_names"
self.classSet.write(idFileTag + ".class_names")
print >>sys.stderr, "Saving feature names to", idFileTag + ".feature_names"
self.featureSet.write(idFileTag + ".feature_names")
def __init__(self, examples, predictions=None, classSet=None):
if type(classSet) == types.StringType: # class names are in file
classSet = IdSet(filename=classSet)
if type(predictions) == types.StringType: # predictions are in file
predictions = ExampleUtils.loadPredictions(predictions)
if type(examples) == types.StringType: # examples are in file
examples = ExampleUtils.readExamples(examples, False)
self.classSet = classSet
# define class ids in alphabetical order
self.classSet = classSet
if classSet != None:
classNames = sorted(classSet.Ids.keys())
else:
classNames = []
# make an ordered list of class ids
self.classes = []
for className in classNames:
self.classes.append(classSet.getId(className))
# create data structures for per-class evaluation
self.dataByClass = {}
for cls in self.classes:
self.dataByClass[cls] = EvaluationData()
# hack for unnamed classes
if len(self.dataByClass) == 0:
self.dataByClass[1] = EvaluationData()
self.dataByClass[2] = EvaluationData()
#self.untypedUndirected = None
self.untypedCurrentMajorId = None
self.untypedPredictionQueue = []
self.untypedUndirected = EvaluationData()
#self.AUC = None
if predictions != None:
self._calculate(examples, predictions)
def __init__(self, examples, predictions=None, classSet=None):
if type(classSet) == types.StringType: # class names are in file
classSet = IdSet(filename=classSet)
if type(predictions) == types.StringType: # predictions are in file
predictions = ExampleUtils.loadPredictions(predictions)
if type(examples) == types.StringType: # examples are in file
examples = ExampleUtils.readExamples(examples, False)
self.classSet = classSet
# define class ids in alphabetical order
self.classSet = classSet
if classSet != None:
classNames = sorted(classSet.Ids.keys())
else:
classNames = []
# make an ordered list of class ids
self.classes = []
for className in classNames:
self.classes.append(classSet.getId(className))
# create data structures for per-class evaluation
self.dataByClass = {}
for cls in self.classes:
self.dataByClass[cls] = EvaluationData()
# hack for unnamed classes
if len(self.dataByClass) == 0:
self.dataByClass[1] = EvaluationData()
self.dataByClass[2] = EvaluationData()
#self.untypedUndirected = None
self.untypedCurrentMajorId = None
self.untypedPredictionQueue = []
self.untypedUndirected = EvaluationData()
#self.AUC = None
if predictions != None:
self._calculate(examples, predictions)
def __init__(self, examples, predictions=None, classSet=None):
if type(classSet) == types.StringType: # class names are in file
classSet = IdSet(filename=classSet)
if type(predictions) == types.StringType: # predictions are in file
predictions = ExampleUtils.loadPredictions(predictions)
if type(examples) == types.StringType: # examples are in file
examples = ExampleUtils.readExamples(examples, False)
SharedTaskEvaluator.corpusElements = Core.SentenceGraph.loadCorpus(
SharedTaskEvaluator.corpusFilename, SharedTaskEvaluator.parse,
SharedTaskEvaluator.tokenization)
# Build interaction xml
xml = BioTextExampleWriter.write(
examples, predictions, SharedTaskEvaluator.corpusElements, None,
SharedTaskEvaluator.ids + ".class_names",
SharedTaskEvaluator.parse, SharedTaskEvaluator.tokenization)
#xml = ExampleUtils.writeToInteractionXML(examples, predictions, SharedTaskEvaluator.corpusElements, None, "genia-direct-event-ids.class_names", SharedTaskEvaluator.parse, SharedTaskEvaluator.tokenization)
# Convert to GENIA format
gifxmlToGenia(xml,
SharedTaskEvaluator.geniaDir,
task=SharedTaskEvaluator.task,
verbose=False)
# Use GENIA evaluation tool
self.results = evaluateSharedTask(SharedTaskEvaluator.geniaDir,
task=SharedTaskEvaluator.task,
evaluations=["approximate"],
verbose=False)
def train(cls, examples, parameters, outputFile=None): #, timeout=None):
"""
Train the SVM-multiclass classifier on a set of examples.
@type examples: string (filename) or list (or iterator) of examples
@param examples: a list or file containing examples in SVM-format
@type parameters: a dictionary or string
@param parameters: parameters for the classifier
@type outputFile: string
@param outputFile: the name of the model file to be written
"""
timer = Timer()
parameters = cls.getParams(parameters)
# If examples are in a list, they will be written to a file for SVM-multiclass
if type(examples) == types.ListType:
print >> sys.stderr, "Training SVM-MultiClass on", len(examples), "examples"
trainPath = self.tempDir+"/train.dat"
examples = self.filterTrainingSet(examples)
Example.writeExamples(examples, trainPath)
else:
print >> sys.stderr, "Training SVM-MultiClass on file", examples
trainPath = cls.stripComments(examples)
args = ["/home/jari/Programs/liblinear-1.5-poly2/train"]
cls.__addParametersToSubprocessCall(args, parameters)
if outputFile == None:
args += [trainPath, "model"]
logFile = open("svmmulticlass.log","at")
else:
args += [trainPath, outputFile]
logFile = open(outputFile+".log","wt")
rv = subprocess.call(args, stdout = logFile)
logFile.close()
print >> sys.stderr, timer.toString()
return rv
def train(self, examples, parameters=None):
self.isBinary = self.isBinaryProblem(examples)
examples = self.filterTrainingSet(examples)
ExampleUtils.writeExamples(examples, self.tempDir + "/train.dat")
#prepare parameters:
if parameters.has_key("c"):
assert (not parameters.has_key("C"))
parameters["C"] = parameters["c"]
del parameters["c"]
totalExamples = float(sum(self.classes.values()))
weight_label = self.classes.keys()
weight_label.sort()
weight = []
for k in weight_label:
weight.append(1.0 - self.classes[k] / totalExamples)
libSVMparam = svm.svm_parameter(nr_weight=len(self.classes),
weight_label=weight_label,
weight=weight,
**parameters)
labels = []
samples = []
for example in examples:
labels.append(example[1])
samples.append(example[2])
problem = svm.svm_problem(labels, samples)
self.model = svm.svm_model(problem, libSVMparam)
def __init__(self, examples=None, predictions=None, classSet=None):
if type(classSet) == types.StringType: # class names are in file
classSet = IdSet(filename=classSet)
if type(predictions) == types.StringType: # predictions are in file
predictions = ExampleUtils.loadPredictions(predictions)
if type(examples) == types.StringType: # examples are in file
examples = ExampleUtils.readExamples(examples, False)
self.keep = set(["CPR:3", "CPR:4", "CPR:5", "CPR:6", "CPR:9"])
self.classSet = classSet
self.results = None
self.internal = None
if predictions != None:
for example in examples:
if example[3] != None:
print >> sys.stderr, "ChemProt Evaluator:"
self._calculateExamples(examples, predictions)
else:
print >> sys.stderr, "No example extra info, skipping ChemProt evaluation"
break
self.internal = AveragingMultiClassEvaluator(
examples, predictions, classSet)
print >> sys.stderr, "AveragingMultiClassEvaluator:"
print >> sys.stderr, self.internal.toStringConcise()
def buildExamplesForDocuments(self,
documentSentences,
output,
idFileTag=None):
examples = []
counter = ProgressCounter(len(documentSentences), "Build examples")
#calculatePredictedRange(self, sentences)
outfile = open(output, "wt")
exampleCount = 0
for document in documentSentences:
counter.update(
1,
"Building examples (" + document[0].sentence.get("id") + "): ")
examples = self.buildExamples(document)
exampleCount += len(examples)
#examples = self.preProcessExamples(examples)
ExampleUtils.appendExamples(examples, outfile)
outfile.close()
print >> sys.stderr, "Examples built:", exampleCount
print >> sys.stderr, "Features:", len(self.featureSet.getNames())
#IF LOCAL
if self.exampleStats.getExampleCount() > 0:
self.exampleStats.printStats()
#ENDIF
# Save Ids
if idFileTag != None:
print >> sys.stderr, "Saving class names to", idFileTag + ".class_names"
self.classSet.write(idFileTag + ".class_names")
print >> sys.stderr, "Saving feature names to", idFileTag + ".feature_names"
self.featureSet.write(idFileTag + ".feature_names")
def test(cls, examples, modelPath, output=None, parameters=None, timeout=None):
if type(examples) == types.ListType:
print >> sys.stderr, "Classifying", len(examples), "with All-True Classifier"
examples, predictions = self.filterClassificationSet(examples, False)
testPath = self.tempDir+"/test.dat"
Example.writeExamples(examples, testPath)
else:
print >> sys.stderr, "Classifying file", examples, "with All-True Classifier"
testPath = examples
examples = Example.readExamples(examples,False)
print >> sys.stderr, "Note! Classification must be binary"
#examples, predictions = self.filterClassificationSet(examples, True)
predictions = []
for example in examples:
#predictions.append( (example, example[1]) )
predictions.append( [2] ) #[example[1]] )
if output == None:
output = "predictions"
f = open(output, "wt")
for p in predictions:
f.write(str(p[0])+"\n")
f.close()
return predictions
def buildGraphKernelFeatures(self, sentenceGraph, path):
edgeList = []
depGraph = sentenceGraph.dependencyGraph
pt = path
for i in range(1, len(path)):
edgeList.extend(depGraph.getEdges(pt[i], pt[i - 1]))
edgeList.extend(depGraph.getEdges(pt[i - 1], pt[i]))
edges = edgeList
adjacencyMatrix, labels = self._buildAdjacencyMatrix(
sentenceGraph, path, edges)
node_count = 2 * len(sentenceGraph.tokens) + len(
sentenceGraph.dependencies)
if sentenceGraph.sentenceElement.attrib["id"] == "LLL.d0.s0":
adjacencyMatrixToHtml(adjacencyMatrix, labels,
"LLL.d0.s0_adjacency_matrix.html")
allPathsMatrix = self._prepareMatrix(adjacencyMatrix, node_count)
self._matrixToFeatures(allPathsMatrix, labels)
if sentenceGraph.sentenceElement.attrib["id"] == "LLL.d0.s0":
adjacencyMatrixToHtml(allPathsMatrix, labels,
"LLL.d0.s0_all_paths_matrix.html")
commentLines = []
commentLines.extend(self.featureSet.toStrings())
example = [
"example_" + self.entity1.attrib["id"] + "_" +
self.entity2.attrib["id"], "unknown", self.features
]
ExampleUtils.writeExamples([example], "LLL.d0.s0_example.txt",
commentLines)
def test(cls,
examples,
modelPath,
output=None,
parameters=None,
timeout=None):
if type(examples) == types.ListType:
print >> sys.stderr, "Classifying", len(
examples), "with All-Correct Classifier"
examples, predictions = self.filterClassificationSet(
examples, False)
testPath = self.tempDir + "/test.dat"
Example.writeExamples(examples, testPath)
else:
print >> sys.stderr, "Classifying file", examples, "with All-Correct Classifier"
testPath = examples
examples = Example.readExamples(examples, False)
#examples, predictions = self.filterClassificationSet(examples, True)
predictions = []
for example in examples:
#predictions.append( (example, example[1]) )
predictions.append([example[1]])
if output == None:
output = "predictions"
f = open(output, "wt")
for p in predictions:
f.write(str(p[0]) + "\n")
f.close()
return predictions
def loadExamples(self, examples, predictions):
if type(predictions) == types.StringType:
print >> sys.stderr, "Reading predictions from", predictions
predictions = ExampleUtils.loadPredictions(predictions)
if type(examples) == types.StringType:
print >> sys.stderr, "Reading examples from", examples
examples = ExampleUtils.readExamples(examples, False)
return examples, predictions
def loadExamples(self, examples, predictions):
if type(predictions) == types.StringType:
print >> sys.stderr, "Reading predictions from", predictions
predictions = ExampleUtils.loadPredictions(predictions)
if type(examples) == types.StringType:
print >> sys.stderr, "Reading examples from", examples
examples = ExampleUtils.readExamples(examples, False)
return examples, predictions
def test(cls, examples, modelPath, output=None, parameters=None, forceInternal=False): # , timeout=None):
"""
Classify examples with a pre-trained model.
@type examples: string (filename) or list (or iterator) of examples
@param examples: a list or file containing examples in SVM-format
@type modelPath: string
@param modelPath: filename of the pre-trained model file
@type parameters: a dictionary or string
@param parameters: parameters for the classifier
@type output: string
@param output: the name of the predictions file to be written
@type forceInternal: Boolean
@param forceInternal: Use python classifier even if SVM Multiclass binary is defined in Settings.py
"""
if forceInternal or Settings.SVMMultiClassDir == None:
return cls.testInternal(examples, modelPath, output)
timer = Timer()
if type(examples) == types.ListType:
print >> sys.stderr, "Classifying", len(examples), "with SVM-MultiClass model", modelPath
examples, predictions = self.filterClassificationSet(examples, False)
testPath = self.tempDir+"/test.dat"
Example.writeExamples(examples, testPath)
else:
print >> sys.stderr, "Classifying file", examples, "with SVM-MultiClass model", modelPath
testPath = cls.stripComments(examples)
examples = Example.readExamples(examples,False)
args = ["/home/jari/Programs/liblinear-1.5-poly2/predict"]
if modelPath == None:
modelPath = "model"
if parameters != None:
parameters = copy.copy(parameters)
if parameters.has_key("c"):
del parameters["c"]
if parameters.has_key("predefined"):
parameters = copy.copy(parameters)
modelPath = os.path.join(parameters["predefined"][0],"classifier/model")
del parameters["predefined"]
self.__addParametersToSubprocessCall(args, parameters)
if output == None:
output = "predictions"
logFile = open("svmmulticlass.log","at")
else:
logFile = open(output+".log","wt")
args += [testPath, modelPath, output]
#if timeout == None:
# timeout = -1
#print args
subprocess.call(args, stdout = logFile, stderr = logFile)
predictionsFile = open(output, "rt")
lines = predictionsFile.readlines()
predictionsFile.close()
predictions = []
for i in range(len(lines)):
predictions.append( [int(lines[i].split()[0])] + lines[i].split()[1:] )
#predictions.append( (examples[i],int(lines[i].split()[0]),"multiclass",lines[i].split()[1:]) )
print >> sys.stderr, timer.toString()
return predictions
def preProcessExamples(self, allExamples):
# Duplicates cannot be removed here, as they should only be removed from the training set. This is done
# in the classifier.
# if "no_duplicates" in self.styles:
# count = len(allExamples)
# print >> sys.stderr, " Removing duplicates,",
# allExamples = ExampleUtils.removeDuplicates(allExamples)
# print >> sys.stderr, "removed", count - len(allExamples)
if "normalize" in self.styles:
print >> sys.stderr, " Normalizing feature vectors"
ExampleUtils.normalizeFeatureVectors(allExamples)
return allExamples
def classify(self, examples, parameters=None):
examples, predictions = self.filterClassificationSet(
examples, self.isBinary)
ExampleUtils.writeExamples(examples, self.tempDir + "/test.dat")
for i in range(len(examples)):
if self.isBinary:
predictedClass = self.model.predict(examples[i][2])
predictions.append((examples[i], predictedClass, "binary"))
else:
predictedClass = self.model.predict(examples[i][2])
predictions.append((examples[i], predictedClass, "multiclass"))
return predictions
def preProcessExamples(self, allExamples):
# Duplicates cannot be removed here, as they should only be removed from the training set. This is done
# in the classifier.
# if "no_duplicates" in self.styles:
# count = len(allExamples)
# print >> sys.stderr, " Removing duplicates,",
# allExamples = ExampleUtils.removeDuplicates(allExamples)
# print >> sys.stderr, "removed", count - len(allExamples)
if "normalize" in self.styles:
print >> sys.stderr, " Normalizing feature vectors"
ExampleUtils.normalizeFeatureVectors(allExamples)
return allExamples
def classify(self, examples, parameters=None):
examples, predictions = self.filterClassificationSet(examples, self.isBinary)
ExampleUtils.writeExamples(examples, self.tempDir+"/test.dat")
for i in range(len(examples)):
if self.isBinary:
predictedClass = self.model.predict(examples[i][2])
predictions.append( (examples[i],predictedClass,"binary") )
else:
predictedClass = self.model.predict(examples[i][2])
predictions.append( (examples[i],predictedClass,"multiclass") )
return predictions
def classify(self,
examples,
output,
model=None,
finishBeforeReturn=False,
replaceRemoteFiles=True):
output = os.path.abspath(output)
# Get examples
if type(examples) == types.ListType:
print >> sys.stderr, "Classifying", len(
examples), "with All-Correct Classifier"
else:
print >> sys.stderr, "Classifying file", examples, "with All-Correct Classifier"
examples = self.getExampleFile(examples,
upload=False,
replaceRemote=False,
dummy=False)
examples = Example.readExamples(examples, False)
# Return a new classifier instance for following the training process and using the model
classifier = copy.copy(self)
# Classify
f = open(output, "wt")
for example in examples:
f.write(str(example[1]) + "\n")
f.close()
classifier.predictions = output
return classifier
def classifyToXML(self, data, model, exampleFileName=None, tag="", classifierModel=None, goldData=None, parse=None, recallAdjust=None, compressExamples=True, exampleStyle=None):
model = self.openModel(model, "r")
if parse == None:
parse = self.getStr(self.tag+"parse", model)
if exampleFileName == None:
exampleFileName = tag+self.tag+"examples"
if compressExamples:
exampleFileName += ".gz"
self.buildExamples(model, [data], [exampleFileName], [goldData], parse=parse, exampleStyle=exampleStyle)
if classifierModel == None:
classifierModel = model.get(self.tag+"classifier-model", defaultIfNotExist=None)
#else:
# assert os.path.exists(classifierModel), classifierModel
classifier = self.getClassifier(model.getStr(self.tag+"classifier-parameter", defaultIfNotExist=None))()
classifier.classify(exampleFileName, tag+self.tag+"classifications", classifierModel, finishBeforeReturn=True)
threshold = model.getStr(self.tag+"threshold", defaultIfNotExist=None, asType=float)
predictions = ExampleUtils.loadPredictions(tag+self.tag+"classifications", recallAdjust, threshold=threshold)
evaluator = self.evaluator.evaluate(exampleFileName, predictions, model.get(self.tag+"ids.classes"))
#outputFileName = tag+"-"+self.tag+"pred.xml.gz"
#exampleStyle = self.exampleBuilder.getParameters(model.getStr(self.tag+"example-style"))
if exampleStyle == None:
exampleStyle = Parameters.get(model.getStr(self.tag+"example-style")) # no checking, but these should already have passed the ExampleBuilder
self.structureAnalyzer.load(model)
return self.exampleWriter.write(exampleFileName, predictions, data, tag+self.tag+"pred.xml.gz", model.get(self.tag+"ids.classes"), parse, exampleStyle=exampleStyle, structureAnalyzer=self.structureAnalyzer)
# if evaluator.getData().getTP() + evaluator.getData().getFP() > 0:
# return self.exampleWriter.write(exampleFileName, predictions, data, outputFileName, model.get(self.tag+"ids.classes"), parse)
# else:
# # TODO: e.g. interactions must be removed if task does unmerging
# print >> sys.stderr, "No positive", self.tag + "predictions, XML file", outputFileName, "unchanged from input"
# if type(data) in types.StringTypes: # assume its a file
# shutil.copy(data, outputFileName)
# else: # assume its an elementtree
# ETUtils.write(data, outputFileName)
# #print >> sys.stderr, "No positive predictions, XML file", tag+self.tag+"pred.xml", "not written"
# return data #None
def __init__(self, examples, predictions=None, classSet=None):
if type(classSet) == types.StringType: # class names are in file
classSet = IdSet(filename=classSet)
if type(predictions) == types.StringType: # predictions are in file
predictions = ExampleUtils.loadPredictions(predictions)
if type(examples) == types.StringType: # examples are in file
examples = ExampleUtils.readExamples(examples, False)
SharedTaskEvaluator.corpusElements = Core.SentenceGraph.loadCorpus(SharedTaskEvaluator.corpusFilename, SharedTaskEvaluator.parse, SharedTaskEvaluator.tokenization)
# Build interaction xml
xml = BioTextExampleWriter.write(examples, predictions, SharedTaskEvaluator.corpusElements, None, SharedTaskEvaluator.ids+".class_names", SharedTaskEvaluator.parse, SharedTaskEvaluator.tokenization)
#xml = ExampleUtils.writeToInteractionXML(examples, predictions, SharedTaskEvaluator.corpusElements, None, "genia-direct-event-ids.class_names", SharedTaskEvaluator.parse, SharedTaskEvaluator.tokenization)
# Convert to GENIA format
gifxmlToGenia(xml, SharedTaskEvaluator.geniaDir, task=SharedTaskEvaluator.task, verbose=False)
# Use GENIA evaluation tool
self.results = evaluateSharedTask(SharedTaskEvaluator.geniaDir, task=SharedTaskEvaluator.task, evaluations=["approximate"], verbose=False)
def classifyToXML(self, data, model, exampleFileName=None, tag="", classifierModel=None, goldData=None, parse=None, recallAdjust=None, compressExamples=True):
model = self.openModel(model, "r")
if parse == None:
parse = self.getStr(self.tag+"parse", model)
if exampleFileName == None:
exampleFileName = tag+self.tag+"examples"
if compressExamples:
exampleFileName += ".gz"
self.buildExamples(model, [data], [exampleFileName], [goldData], parse=parse)
if classifierModel == None:
classifierModel = model.get(self.tag+"classifier-model")
else:
assert os.path.exists(classifierModel), classifierModel
classifier = self.Classifier()
classifier.classify(exampleFileName, tag+self.tag+"classifications", classifierModel, finishBeforeReturn=True)
predictions = ExampleUtils.loadPredictions(tag+self.tag+"classifications", recallAdjust)
evaluator = self.evaluator.evaluate(exampleFileName, predictions, model.get(self.tag+"ids.classes"))
#outputFileName = tag+"-"+self.tag+"pred.xml.gz"
return self.exampleWriter.write(exampleFileName, predictions, data, tag+self.tag+"pred.xml.gz", model.get(self.tag+"ids.classes"), parse)
# if evaluator.getData().getTP() + evaluator.getData().getFP() > 0:
# return self.exampleWriter.write(exampleFileName, predictions, data, outputFileName, model.get(self.tag+"ids.classes"), parse)
# else:
# # TODO: e.g. interactions must be removed if task does unmerging
# print >> sys.stderr, "No positive", self.tag + "predictions, XML file", outputFileName, "unchanged from input"
# if type(data) in types.StringTypes: # assume its a file
# shutil.copy(data, outputFileName)
# else: # assume its an elementtree
# ETUtils.write(data, outputFileName)
# #print >> sys.stderr, "No positive predictions, XML file", tag+self.tag+"pred.xml", "not written"
# return data #None
def __init__(self, examples, predictions=None, classSet=None):
if type(classSet) == types.StringType: # class names are in file
classSet = IdSet(filename=classSet)
if type(predictions) == types.StringType: # predictions are in file
predictions = ExampleUtils.loadPredictions(predictions)
if type(examples) == types.StringType: # examples are in file
examples = ExampleUtils.readExamples(examples, False)
self.classSet = classSet
self.dataByClass = defaultdict(EvaluationData)
#self.untypedUndirected = None
self.untypedCurrentMajorId = None
self.untypedPredictionQueue = []
self.untypedUndirected = EvaluationData()
#self.AUC = None
if predictions != None:
self._calculate(examples, predictions)
def __init__(self, examples, predictions=None, classSet=None):
if type(classSet) == types.StringType: # class names are in file
classSet = IdSet(filename=classSet)
if type(predictions) == types.StringType: # predictions are in file
predictions = ExampleUtils.loadPredictions(predictions)
if type(examples) == types.StringType: # examples are in file
examples = ExampleUtils.readExamples(examples, False)
self.classSet = classSet
self.dataByClass = defaultdict(EvaluationData)
#self.untypedUndirected = None
self.untypedCurrentMajorId = None
self.untypedPredictionQueue = []
self.untypedUndirected = EvaluationData()
#self.AUC = None
if predictions != None:
self._calculate(examples, predictions)
def optimize(self, examples, outDir, parameters, classifyExamples, classIds, step="BOTH", evaluator=None, determineThreshold=False, timeout=None, downloadAllModels=False):
assert step in ["BOTH", "SUBMIT", "RESULTS"], step
outDir = os.path.abspath(outDir)
# Initialize training (or reconnect to existing jobs)
combinations = Parameters.getCombinations(Parameters.get(parameters, valueListKey="c")) #Core.OptimizeParameters.getParameterCombinations(parameters)
trained = []
for combination in combinations:
trained.append( self.train(examples, outDir, combination, classifyExamples, replaceRemoteExamples=(len(trained) == 0), dummy=(step == "RESULTS")) )
if step == "SUBMIT": # Return already
classifier = copy.copy(self)
classifier.setState("OPTIMIZE")
return classifier
# Wait for the training to finish
finalJobStatus = self.connection.waitForJobs([x.getJob() for x in trained])
# Evaluate the results
print >> sys.stderr, "Evaluating results"
#Stream.setIndent(" ")
bestResult = None
if evaluator == None:
evaluator = self.defaultEvaluator
for i in range(len(combinations)):
id = trained[i].parameterIdStr
#Stream.setIndent(" ")
# Get predictions
predictions = None
if trained[i].getStatus() == "FINISHED":
predictions = trained[i].downloadPredictions()
else:
print >> sys.stderr, "No results for combination" + id
continue
if downloadAllModels:
trained[i].downloadModel()
# Compare to other results
print >> sys.stderr, "*** Evaluating results for combination" + id + " ***"
threshold = None
if determineThreshold:
print >> sys.stderr, "Thresholding, original micro =",
evaluation = evaluator.evaluate(classifyExamples, predictions, classIds, os.path.join(outDir, "evaluation-before-threshold" + id + ".csv"), verbose=False)
print >> sys.stderr, evaluation.microF.toStringConcise()
threshold, bestF = evaluator.threshold(classifyExamples, predictions)
print >> sys.stderr, "threshold =", threshold, "at binary fscore", str(bestF)[0:6]
evaluation = evaluator.evaluate(classifyExamples, ExampleUtils.loadPredictions(predictions, threshold=threshold), classIds, os.path.join(outDir, "evaluation" + id + ".csv"))
if bestResult == None or evaluation.compare(bestResult[0]) > 0: #: averageResult.fScore > bestResult[1].fScore:
bestResult = [evaluation, trained[i], combinations[i], threshold]
if not self.connection.isLocal():
os.remove(predictions) # remove predictions to save space
#Stream.setIndent()
if bestResult == None:
raise Exception("No results for any parameter combination")
print >> sys.stderr, "*** Evaluation complete", finalJobStatus, "***"
print >> sys.stderr, "Selected parameters", bestResult[2]
classifier = copy.copy(bestResult[1])
classifier.threshold = bestResult[3]
classifier.downloadModel()
return classifier
def __init__(self, examples, predictions=None, classSet=None):
if type(classSet) == types.StringType: # class names are in file
classSet = IdSet(filename=classSet)
if type(predictions) == types.StringType: # predictions are in file
predictions = ExampleUtils.loadPredictions(predictions)
if type(examples) == types.StringType: # examples are in file
examples = ExampleUtils.readExamples(examples, False)
corpusElements = Core.SentenceGraph.loadCorpus(BXEvaluator.corpusFilename, BXEvaluator.parse, BXEvaluator.tokenization)
# Build interaction xml
xml = BioTextExampleWriter.write(examples, predictions, corpusElements, None, BXEvaluator.ids+".class_names", BXEvaluator.parse, BXEvaluator.tokenization)
xml = ix.splitMergedElements(xml, None)
xml = ix.recalculateIds(xml, None, True)
#xml = ExampleUtils.writeToInteractionXML(examples, predictions, SharedTaskEvaluator.corpusElements, None, "genia-direct-event-ids.class_names", SharedTaskEvaluator.parse, SharedTaskEvaluator.tokenization)
# Convert to GENIA format
STFormat.ConvertXML.toSTFormat(xml, BXEvaluator.geniaDir, outputTag="a2")
#gifxmlToGenia(xml, BXEvaluator.geniaDir, task=SharedTaskEvaluator.task, verbose=False)
# Use GENIA evaluation tool
self.results = BioNLP11GeniaTools.evaluateBX(BXEvaluator.geniaDir, corpusName=BXEvaluator.corpusTag)
corpusElements = None
def __init__(self, examples=None, predictions=None, classSet=None):
if type(classSet) == types.StringType: # class names are in file
classSet = IdSet(filename=classSet)
if type(predictions) == types.StringType: # predictions are in file
predictions = ExampleUtils.loadPredictions(predictions)
if type(examples) == types.StringType: # examples are in file
examples = ExampleUtils.readExamples(examples, False)
#self.examples = examples
#self.predictions = predictions
self.truePositives = 0
self.falsePositives = 0
self.trueNegatives = 0
self.falseNegatives = 0
self.precision = None
self.recall = None
self.fScore = None
self.AUC = None
self.type = "binary"
if predictions != None:
self._calculate(examples, predictions)
def __init__(self, examples=None, predictions=None, classSet=None):
if type(classSet) == types.StringType: # class names are in file
classSet = IdSet(filename=classSet)
if type(predictions) == types.StringType: # predictions are in file
predictions = ExampleUtils.loadPredictions(predictions)
if type(examples) == types.StringType: # examples are in file
examples = ExampleUtils.readExamples(examples, False)
# self.examples = examples
# self.predictions = predictions
self.truePositives = 0
self.falsePositives = 0
self.trueNegatives = 0
self.falseNegatives = 0
self.precision = None
self.recall = None
self.fScore = None
self.AUC = None
self.type = "binary"
if predictions != None:
self._calculate(examples, predictions)
def polynomizeExamples(exampleFile, outFile, weightFeatures, idSet):
outFile = open(outFile, "wt")
addCount = 0
f = open(exampleFile)
numExamples = sum([1 for line in f])
f.close()
counter = ProgressCounter(numExamples, "Polynomize examples", step=0)
weightFeatureIds = {}
for weightFeature in weightFeatures:
wId = idSet.getId(weightFeature, False)
if wId == None:
sys.exit("Weight vector feature", weightFeature, "not in id file")
weightFeatureIds[weightFeature] = wId
print "Polynomizing", exampleFile
exampleCache = []
for example in ExampleUtils.readExamples(exampleFile):
counter.update(1, "Processing example (" + example[0] + "): ")
features = example[2]
for i in range(len(weightFeatures) - 1):
wI = weightFeatures[i]
wIid = weightFeatureIds[wI]
if not features.has_key(wIid):
continue
for j in range(i + 1, len(weightFeatures)):
wJ = weightFeatures[j]
wJid = weightFeatureIds[wJ]
if not features.has_key(wJid):
continue
# Make polynomial feature
features[idSet.getId(wI + "_AND_" + wJ)] = 1
addCount += 1
exampleCache.append(example)
if len(exampleCache) > 50:
ExampleUtils.appendExamples(exampleCache, outFile)
exampleCache = []
ExampleUtils.appendExamples(exampleCache, outFile)
outFile.close()
print "Added", addCount, "polynomial features"
def buildExamplesForSentences(self,
sentences,
goldSentences,
output,
idFileTag=None,
append=False):
examples = []
counter = ProgressCounter(len(sentences), "Build examples")
if append:
outfile = open(output, "at")
else:
outfile = open(output, "wt")
exampleCount = 0
for i in range(len(sentences)):
sentence = sentences[i]
goldSentence = [None]
if goldSentences != None:
goldSentence = goldSentences[i]
counter.update(
1, "Building examples (" + sentence[0].getSentenceId() + "): ")
examples = self.buildExamples(sentence[0],
goldSentence[0],
append=append)
exampleCount += len(examples)
examples = self.preProcessExamples(examples)
ExampleUtils.appendExamples(examples, outfile)
outfile.close()
print >> sys.stderr, "Examples built:", exampleCount
print >> sys.stderr, "Features:", len(self.featureSet.getNames())
#IF LOCAL
if self.exampleStats.getExampleCount() > 0:
self.exampleStats.printStats()
#ENDIF
# Save Ids
if idFileTag != None:
print >> sys.stderr, "Saving class names to", idFileTag + ".class_names"
self.classSet.write(idFileTag + ".class_names")
print >> sys.stderr, "Saving feature names to", idFileTag + ".feature_names"
self.featureSet.write(idFileTag + ".feature_names")
def polynomizeExamples(exampleFile, outFile, weightFeatures, idSet):
outFile = open(outFile, "wt")
addCount = 0
f = open(exampleFile)
numExamples = sum([1 for line in f])
f.close()
counter = ProgressCounter(numExamples, "Polynomize examples", step=0)
weightFeatureIds = {}
for weightFeature in weightFeatures:
wId = idSet.getId(weightFeature, False)
if wId == None:
sys.exit("Weight vector feature", weightFeature, "not in id file")
weightFeatureIds[weightFeature] = wId
print "Polynomizing", exampleFile
exampleCache = []
for example in ExampleUtils.readExamples(exampleFile):
counter.update(1, "Processing example ("+example[0]+"): ")
features = example[2]
for i in range(len(weightFeatures)-1):
wI = weightFeatures[i]
wIid = weightFeatureIds[wI]
if not features.has_key(wIid):
continue
for j in range(i + 1, len(weightFeatures)):
wJ = weightFeatures[j]
wJid = weightFeatureIds[wJ]
if not features.has_key(wJid):
continue
# Make polynomial feature
features[idSet.getId(wI + "_AND_" + wJ)] = 1
addCount += 1
exampleCache.append(example)
if len(exampleCache) > 50:
ExampleUtils.appendExamples(exampleCache, outFile)
exampleCache = []
ExampleUtils.appendExamples(exampleCache, outFile)
outFile.close()
print "Added", addCount, "polynomial features"
def addExamples(exampleFile, predictionFile, classFile, matrix):
classSet = IdSet(filename=classFile)
f = open(predictionFile, "rt")
for example in ExampleUtils.readExamples(exampleFile, False):
pred = int(f.readline().split()[0])
predClasses = classSet.getName(pred)
goldClasses = classSet.getName(example[1])
for predClass in predClasses.split("---"):
for goldClass in goldClasses.split("---"):
matrix[predClass][goldClass]
matrix[goldClass][predClass] += 1
f.close()
def addExamples(exampleFile, predictionFile, classFile, matrix):
classSet = IdSet(filename=classFile)
f = open(predictionFile, "rt")
for example in ExampleUtils.readExamples(exampleFile, False):
pred = int(f.readline().split()[0])
predClasses = classSet.getName(pred)
goldClasses = classSet.getName(example[1])
for predClass in predClasses.split("---"):
for goldClass in goldClasses.split("---"):
matrix[predClass][goldClass]
matrix[goldClass][predClass] += 1
f.close()
def threshold(cls, examples, predictions):
# Make negative confidence score / true class pairs
if type(examples) in types.StringTypes:
examples = ExampleUtils.readExamples(examples, False)
if type(predictions) in types.StringTypes:
predictions = ExampleUtils.loadPredictions(predictions)
pairs = []
realPositives = 0
for example, prediction in itertools.izip(examples, predictions):
trueClass = example[1]
assert (trueClass > 0
) # multiclass classification uses non-negative integers
if trueClass > 1:
realPositives += 1
negClassValue = prediction[1]
pairs.append((negClassValue, trueClass))
pairs.sort(reverse=True)
realNegatives = len(pairs) - realPositives
# When starting thresholding, all examples are considered positive
binaryF = EvaluationData()
binaryF._tp = realPositives
binaryF._fp = realNegatives
binaryF._fn = 0
binaryF.calculateFScore()
fscore = binaryF.fscore
threshold = pairs[0][0] - 1.
# Turn one example negative at a time
for pair in pairs:
if pair[1] == 1: # the real class is negative
binaryF._fp -= 1 # false positive -> true negative
else: # the real class is a positive class
binaryF._tp -= 1 # true positive -> ...
binaryF._fn += 1 # ... false negative
binaryF.calculateFScore()
if binaryF.fscore > fscore:
fscore = binaryF.fscore
threshold = pair[0] + 0.00000001
return threshold, fscore
def train(self, examples, parameters=None, outputDir=None):
timeout = -1
if type(examples) == types.StringType:
trainFilePath = examples
elif type(examples) == types.ListType:
examples = self.filterTrainingSet(examples)
parameters = copy.copy(parameters)
if parameters.has_key("style"):
if "no_duplicates" in parameters["style"]:
examples = Example.removeDuplicates(examples)
del parameters["style"]
Example.writeExamples(examples, self.tempDir+"/train.dat")
trainFilePath = self.tempDir+"/train.dat"
if parameters.has_key("timeout"):
timeout = parameters["timeout"]
del parameters["timeout"]
args = [self.trainBin]
if parameters != None:
self.__addParametersToSubprocessCall(args, parameters)
args += [trainFilePath, self.tempDir+"/model"]
return killableprocess.call(args, stdout = self.debugFile, timeout = timeout)
def buildGraphKernelFeatures(self, sentenceGraph, path):
edgeList = []
depGraph = sentenceGraph.dependencyGraph
pt = path
for i in range(1, len(path)):
edgeList.extend(depGraph.getEdges(pt[i], pt[i-1]))
edgeList.extend(depGraph.getEdges(pt[i-1], pt[i]))
edges = edgeList
adjacencyMatrix, labels = self._buildAdjacencyMatrix(sentenceGraph, path, edges)
node_count = 2*len(sentenceGraph.tokens) + len(sentenceGraph.dependencies)
if sentenceGraph.sentenceElement.attrib["id"] == "LLL.d0.s0":
adjacencyMatrixToHtml(adjacencyMatrix, labels, "LLL.d0.s0_adjacency_matrix.html")
allPathsMatrix = self._prepareMatrix(adjacencyMatrix, node_count)
self._matrixToFeatures(allPathsMatrix, labels)
if sentenceGraph.sentenceElement.attrib["id"] == "LLL.d0.s0":
adjacencyMatrixToHtml(allPathsMatrix, labels, "LLL.d0.s0_all_paths_matrix.html")
commentLines = []
commentLines.extend(self.featureSet.toStrings())
example = ["example_"+self.entity1.attrib["id"]+"_"+self.entity2.attrib["id"],"unknown",self.features]
ExampleUtils.writeExamples([example],"LLL.d0.s0_example.txt",commentLines)
def threshold(cls, examples, predictions):
# Make negative confidence score / true class pairs
if type(examples) in types.StringTypes:
examples = ExampleUtils.readExamples(examples, False)
if type(predictions) in types.StringTypes:
predictions = ExampleUtils.loadPredictions(predictions)
pairs = []
realPositives = 0
for example, prediction in itertools.izip(examples, predictions):
trueClass = example[1]
assert(trueClass > 0) # multiclass classification uses non-negative integers
if trueClass > 1:
realPositives += 1
negClassValue = prediction[1]
pairs.append( (negClassValue, trueClass) )
pairs.sort(reverse=True)
realNegatives = len(pairs) - realPositives
# When starting thresholding, all examples are considered positive
binaryF = EvaluationData()
binaryF._tp = realPositives
binaryF._fp = realNegatives
binaryF._fn = 0
binaryF.calculateFScore()
fscore = binaryF.fscore
threshold = pairs[0][0]-1.
# Turn one example negative at a time
for pair in pairs:
if pair[1] == 1: # the real class is negative
binaryF._fp -= 1 # false positive -> true negative
else: # the real class is a positive class
binaryF._tp -= 1 # true positive -> ...
binaryF._fn += 1 # ... false negative
binaryF.calculateFScore()
if binaryF.fscore > fscore:
fscore = binaryF.fscore
threshold = pair[0]+0.00000001
return threshold, fscore
def classifyToXML(self,
data,
model,
exampleFileName=None,
tag="",
classifierModel=None,
goldData=None,
parse=None,
recallAdjust=None,
compressExamples=True):
model = self.openModel(model, "r")
if parse == None:
parse = self.getStr(self.tag + "parse", model)
if exampleFileName == None:
exampleFileName = tag + self.tag + "examples"
if compressExamples:
exampleFileName += ".gz"
self.buildExamples(model, [data], [exampleFileName], [goldData],
parse=parse)
if classifierModel == None:
classifierModel = model.get(self.tag + "classifier-model")
else:
assert os.path.exists(classifierModel), classifierModel
classifier = self.Classifier()
classifier.classify(exampleFileName,
tag + self.tag + "classifications",
classifierModel,
finishBeforeReturn=True)
predictions = ExampleUtils.loadPredictions(
tag + self.tag + "classifications", recallAdjust)
evaluator = self.evaluator.evaluate(
exampleFileName, predictions, model.get(self.tag + "ids.classes"))
#outputFileName = tag+"-"+self.tag+"pred.xml.gz"
return self.exampleWriter.write(exampleFileName, predictions, data,
tag + self.tag + "pred.xml.gz",
model.get(self.tag + "ids.classes"),
parse)
# if evaluator.getData().getTP() + evaluator.getData().getFP() > 0:
# return self.exampleWriter.write(exampleFileName, predictions, data, outputFileName, model.get(self.tag+"ids.classes"), parse)
# else:
# # TODO: e.g. interactions must be removed if task does unmerging
# print >> sys.stderr, "No positive", self.tag + "predictions, XML file", outputFileName, "unchanged from input"
# if type(data) in types.StringTypes: # assume its a file
# shutil.copy(data, outputFileName)
# else: # assume its an elementtree
# ETUtils.write(data, outputFileName)
# #print >> sys.stderr, "No positive predictions, XML file", tag+self.tag+"pred.xml", "not written"
# return data #None
def train(self, examples, parameters=None):
self.isBinary = self.isBinaryProblem(examples)
examples = self.filterTrainingSet(examples)
ExampleUtils.writeExamples(examples, self.tempDir+"/train.dat")
#prepare parameters:
if parameters.has_key("c"):
assert(not parameters.has_key("C"))
parameters["C"] = parameters["c"]
del parameters["c"]
totalExamples = float(sum(self.classes.values()))
weight_label = self.classes.keys()
weight_label.sort()
weight = []
for k in weight_label:
weight.append(1.0-self.classes[k]/totalExamples)
libSVMparam = svm.svm_parameter(nr_weight = len(self.classes), weight_label=weight_label, weight=weight, **parameters)
labels = []
samples = []
for example in examples:
labels.append(example[1])
samples.append(example[2])
problem = svm.svm_problem(labels, samples)
self.model = svm.svm_model(problem, libSVMparam)
def buildExamples(exampleBuilder, sentences, outfilename):
timer = Timer()
examples = []
if "graph_kernel" in exampleBuilder.styles:
counter = ProgressCounter(len(sentences), "Build examples", 0)
else:
counter = ProgressCounter(len(sentences), "Build examples")
calculatePredictedRange(exampleBuilder, sentences)
outfile = open(outfilename, "wt")
exampleCount = 0
for sentence in sentences:
counter.update(1, "Building examples ("+sentence[0].getSentenceId()+"): ")
examples = exampleBuilder.buildExamples(sentence[0])
exampleCount += len(examples)
examples = exampleBuilder.preProcessExamples(examples)
Example.appendExamples(examples, outfile)
outfile.close()
print >> sys.stderr, "Examples built:", str(exampleCount)
print >> sys.stderr, "Features:", len(exampleBuilder.featureSet.getNames())
print >> sys.stderr, "Elapsed", timer.toString()
def write(
cls,
examples,
predictions,
corpus,
outputFile,
classSet=None,
parse=None,
tokenization=None,
goldCorpus=None,
insertWeights=False,
):
if type(examples) == types.StringType:
print >>sys.stderr, "Reading examples from", examples
examples = ExampleUtils.readExamples(examples, False)
# This looks a bit strange, but should work with the re-iterable
# generators that readExamples returns
xType = None
for example in examples:
assert example[3].has_key("xtype")
xType = example[3]["xtype"]
break
if xType == "token":
w = EntityExampleWriter()
if insertWeights:
w.insertWeights = True
elif xType == "edge":
w = EdgeExampleWriter()
elif xType == "task3":
w = ModifierExampleWriter()
elif xType == "entRel":
w = EntityRelationExampleWriter()
elif xType == "phrase":
w = PhraseTriggerExampleWriter()
# IF LOCAL
elif xType == "um":
w = UnmergingExampleWriter()
# elif xType == "ue":
# w = UnmergedEdgeExampleWriter()
# elif xType == "asym":
# w = AsymmetricEventExampleWriter()
# ENDIF
else:
assert False, ("Unknown entity type", xType)
return w.writeXML(
examples, predictions, corpus, outputFile, classSet, parse, tokenization, goldCorpus=goldCorpus
)
def train(self, examples, parameters=None, outputDir=None):
timeout = -1
if type(examples) == types.StringType:
trainFilePath = examples
elif type(examples) == types.ListType:
examples = self.filterTrainingSet(examples)
parameters = copy.copy(parameters)
if parameters.has_key("style"):
if "no_duplicates" in parameters["style"]:
examples = Example.removeDuplicates(examples)
del parameters["style"]
Example.writeExamples(examples, self.tempDir + "/train.dat")
trainFilePath = self.tempDir + "/train.dat"
if parameters.has_key("timeout"):
timeout = parameters["timeout"]
del parameters["timeout"]
args = [self.trainBin]
if parameters != None:
self.__addParametersToSubprocessCall(args, parameters)
args += [trainFilePath, self.tempDir + "/model"]
return killableprocess.call(args,
stdout=self.debugFile,
timeout=timeout)
def train(cls, examples, parameters, outputFile=None): #, timeout=None):
"""
Train the SVM-multiclass classifier on a set of examples.
@type examples: string (filename) or list (or iterator) of examples
@param examples: a list or file containing examples in SVM-format
@type parameters: a dictionary or string
@param parameters: parameters for the classifier
@type outputFile: string
@param outputFile: the name of the model file to be written
"""
timer = Timer()
parameters = cls.getParams(parameters)
# If examples are in a list, they will be written to a file for SVM-multiclass
if type(examples) == types.ListType:
print >> sys.stderr, "Training SVM-MultiClass on", len(
examples), "examples"
trainPath = self.tempDir + "/train.dat"
examples = self.filterTrainingSet(examples)
Example.writeExamples(examples, trainPath)
else:
print >> sys.stderr, "Training SVM-MultiClass on file", examples
trainPath = cls.stripComments(examples)
args = ["/home/jari/Programs/liblinear-1.5-poly2/train"]
cls.__addParametersToSubprocessCall(args, parameters)
if outputFile == None:
args += [trainPath, "model"]
logFile = open("svmmulticlass.log", "at")
else:
args += [trainPath, outputFile]
logFile = open(outputFile + ".log", "wt")
rv = subprocess.call(args, stdout=logFile)
logFile.close()
print >> sys.stderr, timer.toString()
return rv
def buildExamples(exampleBuilder, sentences, outfilename):
timer = Timer()
examples = []
if "graph_kernel" in exampleBuilder.styles:
counter = ProgressCounter(len(sentences), "Build examples", 0)
else:
counter = ProgressCounter(len(sentences), "Build examples")
calculatePredictedRange(exampleBuilder, sentences)
outfile = open(outfilename, "wt")
exampleCount = 0
for sentence in sentences:
counter.update(
1, "Building examples (" + sentence[0].getSentenceId() + "): ")
examples = exampleBuilder.buildExamples(sentence[0])
exampleCount += len(examples)
examples = exampleBuilder.preProcessExamples(examples)
Example.appendExamples(examples, outfile)
outfile.close()
print >> sys.stderr, "Examples built:", str(exampleCount)
print >> sys.stderr, "Features:", len(exampleBuilder.featureSet.getNames())
print >> sys.stderr, "Elapsed", timer.toString()
def classify(self, examples, parameters=None):
if type(examples) == types.StringType:
testFilePath = examples
predictions = []
realClasses = []
exampleFile = open(examples, "rt")
for line in exampleFile.readlines():
realClasses.append(int(line.split(" ", 1)[0].strip()))
exampleFile.close()
elif type(examples) == types.ListType:
examples, predictions = self.filterClassificationSet(
examples, True)
Example.writeExamples(examples, self.tempDir + "/test.dat")
testFilePath = self.tempDir + "/test.dat"
args = [self.classifyBin]
if parameters != None:
self.__addParametersToSubprocessCall(args, parameters)
args += [
testFilePath, self.tempDir + "/model",
self.tempDir + "/predictions"
]
#print args
subprocess.call(args, stdout=self.debugFile)
os.remove(self.tempDir + "/model")
predictionsFile = open(self.tempDir + "/predictions", "rt")
lines = predictionsFile.readlines()
predictionsFile.close()
#predictions = []
for i in range(len(lines)):
if type(examples) == types.ListType:
predictions.append(
(examples[i], float(lines[i]), self.type, lines[i]))
else:
predictions.append(
([None, realClasses[i]], float(lines[i]), self.type))
return predictions
def __init__(self, examples=None, predictions=None, classSet=None):
if type(classSet) == types.StringType: # class names are in file
classSet = IdSet(filename=classSet)
if type(predictions) == types.StringType: # predictions are in file
predictions = ExampleUtils.loadPredictions(predictions)
if type(examples) == types.StringType: # examples are in file
examples = ExampleUtils.readExamples(examples, False)
self.keep = set(["CPR:3", "CPR:4", "CPR:5", "CPR:6", "CPR:9"])
self.classSet = classSet
self.results = None
self.internal = None
if predictions != None:
for example in examples:
if example[3] != None:
print >> sys.stderr, "ChemProt Evaluator:"
self._calculateExamples(examples, predictions)
else:
print >> sys.stderr, "No example extra info, skipping ChemProt evaluation"
break
self.internal = AveragingMultiClassEvaluator(examples, predictions, classSet)
print >> sys.stderr, "AveragingMultiClassEvaluator:"
print >> sys.stderr, self.internal.toStringConcise()
def classify(self, examples, output, model=None, finishBeforeReturn=False, replaceRemoteFiles=True):
output = os.path.abspath(output)
# Get examples
if type(examples) == types.ListType:
print >> sys.stderr, "Classifying", len(examples), "with All-Correct Classifier"
else:
print >> sys.stderr, "Classifying file", examples, "with All-Correct Classifier"
examples = self.getExampleFile(examples, upload=False, replaceRemote=False, dummy=False)
examples = Example.readExamples(examples, False)
# Return a new classifier instance for following the training process and using the model
classifier = copy.copy(self)
# Classify
f = open(output, "wt")
for example in examples:
f.write(str(example[1]) + "\n")
f.close()
classifier.predictions = output
return classifier
def write(cls, examples, predictions, corpus, outputFile, classSet=None, parse=None, tokenization=None, goldCorpus=None, insertWeights=False):
if type(examples) == types.StringType:
print >> sys.stderr, "Reading examples from", examples
examples = ExampleUtils.readExamples(examples, False)
# This looks a bit strange, but should work with the re-iterable
# generators that readExamples returns
xType = None
for example in examples:
assert example[3].has_key("xtype")
xType = example[3]["xtype"]
break
if xType == "token":
w = EntityExampleWriter()
if insertWeights:
w.insertWeights = True
elif xType == "edge":
w = EdgeExampleWriter()
elif xType == "task3":
w = ModifierExampleWriter()
elif xType == "entRel":
w = EntityRelationExampleWriter()
elif xType == "phrase":
w = PhraseTriggerExampleWriter()
#IF LOCAL
elif xType == "um":
w = UnmergingExampleWriter()
#elif xType == "ue":
# w = UnmergedEdgeExampleWriter()
#elif xType == "asym":
# w = AsymmetricEventExampleWriter()
#ENDIF
else:
assert False, ("Unknown entity type", xType)
return w.writeXML(examples, predictions, corpus, outputFile, classSet, parse, tokenization, goldCorpus=goldCorpus)
def test(cls, examples, modelPath, output=None, parameters=None, forceInternal=False, classIds=None): # , timeout=None):
"""
Classify examples with a pre-trained model.
@type examples: string (filename) or list (or iterator) of examples
@param examples: a list or file containing examples in SVM-format
@type modelPath: string
@param modelPath: filename of the pre-trained model file
@type parameters: a dictionary or string
@param parameters: parameters for the classifier
@type output: string
@param output: the name of the predictions file to be written
@type forceInternal: Boolean
@param forceInternal: Use python classifier even if SVM Multiclass binary is defined in Settings.py
"""
if type(parameters) == types.StringType:
parameters = splitParameters(parameters)
timer = Timer()
if type(examples) == types.ListType:
print >> sys.stderr, "Classifying", len(examples), "with SVM-MultiClass model", modelPath
examples, predictions = self.filterClassificationSet(examples, False)
testPath = self.tempDir+"/test.dat"
Example.writeExamples(examples, testPath)
else:
print >> sys.stderr, "Classifying file", examples, "with SVM-MultiClass model", modelPath
testPath = examples
examples = Example.readExamples(examples,False)
if parameters != None:
parameters = copy.copy(parameters)
if parameters.has_key("c"):
del parameters["c"]
if parameters.has_key("predefined"):
parameters = copy.copy(parameters)
modelPath = os.path.join(parameters["predefined"][0],"classifier/model")
del parameters["predefined"]
# Read model
if modelPath == None:
modelPath = "model-multilabel"
classModels = {}
if modelPath.endswith(".gz"):
f = gzip.open(modelPath, "rt")
else:
f = open(modelPath, "rt")
thresholds = {}
for line in f:
key, value, threshold = line.split()
classModels[key] = value
if threshold != "None":
thresholds[key] = float(threshold)
else:
thresholds[key] = 0.0
f.close()
mergedPredictions = []
if type(classIds) == types.StringType:
classIds = IdSet(filename=classIds)
#print classModels
print "Thresholds", thresholds
classifierBin = Settings.SVMMultiClassDir+"/svm_multiclass_classify"
print parameters
if "classifier" in parameters and "svmperf" in parameters["classifier"]:
classifierBin = Settings.SVMPerfDir+"/svm_perf_classify"
parameters = copy.copy(parameters)
del parameters["classifier"]
for className in classIds.getNames():
if className != "neg" and not "---" in className:
classId = classIds.getId(className)
if thresholds[str(className)] != 0.0:
print >> sys.stderr, "Classifying", className, "with threshold", thresholds[str(className)]
else:
print >> sys.stderr, "Classifying", className
args = [classifierBin]
#self.__addParametersToSubprocessCall(args, parameters)
classOutput = "predictions" + ".cls-" + className
logFile = open("svmmulticlass" + ".cls-" + className + ".log","at")
args += [testPath, classModels[str(className)], classOutput]
print args
subprocess.call(args, stdout = logFile, stderr = logFile)
cls.addPredictions(classOutput, mergedPredictions, classId, len(classIds.Ids), threshold=thresholds[str(className)])
print >> sys.stderr, timer.toString()
predFileName = output
f = open(predFileName, "wt")
for mergedPred in mergedPredictions:
if len(mergedPred[0]) > 1 and "1" in mergedPred[0]:
mergedPred[0].remove("1")
mergedPred[1] = str(mergedPred[1])
mergedPred[0] = ",".join(sorted(list(mergedPred[0])))
f.write(" ".join(mergedPred) + "\n")
f.close()
return mergedPredictions
# Import Psyco if available
try:
import psyco
psyco.full()
print >> sys.stderr, "Found Psyco, using"
except ImportError:
print >> sys.stderr, "Psyco not installed"
defaultAnalysisFilename = "/usr/share/biotext/ComplexPPI/BioInferForComplexPPIVisible.xml"
optparser = OptionParser(usage="%prog [options]\nCreate an html visualization for a corpus.")
optparser.add_option("-i", "--invariant", default=None, dest="invariant", help="Corpus in analysis format", metavar="FILE")
optparser.add_option("-v", "--variant", default=None, dest="variant", help="Corpus in analysis format", metavar="FILE")
(options, args) = optparser.parse_args()
#invariantExamples = ExampleUtils.readExamples(os.path.join(options.invariant, "examples.txt"))
variantExamples = ExampleUtils.readExamples(os.path.join(options.variant, "test-triggers.examples"))
invariantFeatureSet = IdSet()
invariantFeatureSet.load(os.path.join(options.invariant, "feature_names.txt"))
invariantClassSet = IdSet()
invariantClassSet.load(os.path.join(options.invariant, "class_names.txt"))
variantFeatureSet = IdSet()
variantFeatureSet.load(os.path.join(options.variant, "test-triggers.examples.feature_names"))
variantClassSet = IdSet()
variantClassSet.load(os.path.join(options.variant, "test-triggers.examples.class_names"))
counter = ProgressCounter(len(variantExamples))
for example in variantExamples:
counter.update()
example[1] = invariantClassSet.getId(variantClassSet.getName(example[1]))
def classifyToXML(self,
data,
model,
exampleFileName=None,
tag="",
classifierModel=None,
goldData=None,
parse=None,
recallAdjust=None,
compressExamples=True,
exampleStyle=None,
useExistingExamples=False):
model = self.openModel(model, "r")
if parse == None:
parse = self.getStr(self.tag + "parse", model)
if useExistingExamples:
assert exampleFileName != None
assert os.path.exists(exampleFileName)
if exampleFileName == None:
exampleFileName = tag + self.tag + "examples"
if compressExamples:
exampleFileName += ".gz"
if not useExistingExamples:
self.buildExamples(model, [data], [exampleFileName], [goldData],
parse=parse,
exampleStyle=exampleStyle)
if classifierModel == None:
classifierModel = model.get(self.tag + "classifier-model",
defaultIfNotExist=None)
#else:
# assert os.path.exists(classifierModel), classifierModel
classifier = self.getClassifier(
model.getStr(self.tag + "classifier-parameter",
defaultIfNotExist=None))()
classifier.classify(exampleFileName,
tag + self.tag + "classifications",
classifierModel,
finishBeforeReturn=True)
threshold = model.getStr(self.tag + "threshold",
defaultIfNotExist=None,
asType=float)
predictions = ExampleUtils.loadPredictions(tag + self.tag +
"classifications",
recallAdjust,
threshold=threshold)
evaluator = self.evaluator.evaluate(
exampleFileName, predictions, model.get(self.tag + "ids.classes"))
#outputFileName = tag+"-"+self.tag+"pred.xml.gz"
#exampleStyle = self.exampleBuilder.getParameters(model.getStr(self.tag+"example-style"))
if exampleStyle == None:
exampleStyle = Parameters.get(
model.getStr(self.tag + "example-style")
) # no checking, but these should already have passed the ExampleBuilder
self.structureAnalyzer.load(model)
return self.exampleWriter.write(
exampleFileName,
predictions,
data,
tag + self.tag + "pred.xml.gz",
model.get(self.tag + "ids.classes"),
parse,
exampleStyle=exampleStyle,
structureAnalyzer=self.structureAnalyzer)
# if evaluator.getData().getTP() + evaluator.getData().getFP() > 0:
# return self.exampleWriter.write(exampleFileName, predictions, data, outputFileName, model.get(self.tag+"ids.classes"), parse)
# else:
# # TODO: e.g. interactions must be removed if task does unmerging
# print >> sys.stderr, "No positive", self.tag + "predictions, XML file", outputFileName, "unchanged from input"
# if type(data) in types.StringTypes: # assume its a file
# shutil.copy(data, outputFileName)
# else: # assume its an elementtree
# ETUtils.write(data, outputFileName)
# #print >> sys.stderr, "No positive predictions, XML file", tag+self.tag+"pred.xml", "not written"
# return data #None
def preProcessExamples(self, allExamples):
if "normalize" in self.styles:
print >> sys.stderr, " Normalizing feature vectors"
ExampleUtils.normalizeFeatureVectors(allExamples)
return allExamples
def buildExamplesFromGraph(self, sentenceGraph, outfile, goldGraph=None, structureAnalyzer=None):
"""
Build examples for a single sentence. Returns a list of examples.
See Core/ExampleUtils for example format.
"""
self.multiEdgeFeatureBuilder.setFeatureVector(resetCache=True)
self.triggerFeatureBuilder.initSentence(sentenceGraph)
exampleIndex = 0
undirected = sentenceGraph.dependencyGraph.toUndirected()
paths = undirected
# Get argument order
self.interactionLenghts = self.getInteractionEdgeLengths(sentenceGraph, paths)
# Map tokens to character offsets
tokenByOffset = {}
for i in range(len(sentenceGraph.tokens)):
token = sentenceGraph.tokens[i]
if goldGraph != None: # check that the tokenizations match
goldToken = goldGraph.tokens[i]
assert token.get("id") == goldToken.get("id") and token.get("charOffset") == goldToken.get("charOffset")
tokenByOffset[token.get("charOffset")] = token.get("id")
# Map gold entities to their head offsets
goldEntitiesByOffset = {}
if goldGraph != None:
for entity in goldGraph.entities:
offset = entity.get("headOffset")
assert offset != None
if not goldEntitiesByOffset.has_key(offset):
goldEntitiesByOffset[offset] = []
goldEntitiesByOffset[offset].append(entity)
if self.styles["no_merge"]:
mergeInput = False
entities = sentenceGraph.entities
else:
mergeInput = True
sentenceGraph.mergeInteractionGraph(True)
entities = sentenceGraph.mergedEntities
self.exampleStats.addValue("Duplicate entities skipped", len(sentenceGraph.entities) - len(entities))
exampleIndex = 0
for entity in entities: # sentenceGraph.entities:
if type(entity) in types.StringTypes: # dummy entity for intersentence interactions
continue
eType = entity.get("type")
assert eType != None, entity.attrib
eType = str(eType)
interactions = [x[2] for x in sentenceGraph.getOutInteractions(entity, mergeInput)]
interactions = self.sortInteractionsById(interactions)
interactionCounts = defaultdict(int)
validInteractionsByType = defaultdict(list)
for interaction in interactions:
if interaction.get("event") != "True":
continue
e1 = sentenceGraph.entitiesById[interaction.get("e1")]
if interaction.get("e2") in sentenceGraph.entitiesById:
e2 = sentenceGraph.entitiesById[interaction.get("e2")]
if interaction.get("type") in structureAnalyzer.getValidEdgeTypes(e1.get("type"), e2.get("type")):
validInteractionsByType[interaction.get("type")].append(interaction)
else: # intersentence
validInteractionsByType[interaction.get("type")].append(interaction)
interactionCounts[interaction.get("type")] += 1
interactionCountString = ",".join([key + "=" + str(interactionCounts[key]) for key in sorted(interactionCounts.keys())])
#argCombinations = self.getArgumentCombinations(eType, interactions, entity.get("id"))
intCombinations = []
validIntTypeCount = 0
maxArgCount = 0
if self.debug:
print >> sys.stderr, entity.get("id"), entity.get("type"), "int:" + interactionCountString, "validInt:" + str(validInteractionsByType)
for intType in sorted(validInteractionsByType.keys()): # for each argument type the event can have
validIntTypeCount += 1
intCombinations.append([])
minArgs, maxArgs = structureAnalyzer.getArgLimits(entity.get("type"), intType)
if maxArgs > maxArgCount:
maxArgCount = maxArgs
#if maxArgs > 1: # allow any number of arguments for cases like Binding
# maxArgs = len(validInteractionsByType[intType])
for combLen in range(minArgs, maxArgs+1): # for each valid argument count, get all possible combinations. note that there may be zero-lenght combination
for singleTypeArgCombination in combinations(validInteractionsByType[intType], combLen):
intCombinations[-1].append(singleTypeArgCombination)
# e.g. theme:[a,b], cause:[d] = [[
# intCombinations now contains a list of lists, each of which has a tuple for each valid combination
# of one argument type. Next, we'll make all valid combinations of multiple argument types
if self.debug:
print >> sys.stderr, " ", "intCombinations", intCombinations
argCombinations = combine.combine(*intCombinations)
if self.debug:
print >> sys.stderr, " ", "argCombinations", argCombinations
for i in range(len(argCombinations)):
argCombinations[i] = sum(argCombinations[i], ())
#sum(argCombinations, []) # flatten nested list
if self.debug:
print >> sys.stderr, " ", "argCombinations flat", argCombinations
for argCombination in argCombinations:
# Originally binary classification
if goldGraph != None:
isGoldEvent = self.eventIsGold(entity, argCombination, sentenceGraph, goldGraph, goldEntitiesByOffset, goldGraph.interactions)
#if eType == "Binding":
# print argCombination[0].get("e1"), len(argCombination), isGoldEvent
else:
isGoldEvent = False
# Named (multi-)class
if isGoldEvent:
# category = "zeroArg"
# if validIntTypeCount == 1:
# category = "singleArg" # event has 0-1 arguments (old simple6)
# if validIntTypeCount > 1:
# category = "multiType" # event has arguments of several types, 0-1 of each (old Regulation)
# if maxArgCount > 1:
# category = "multiArg" # event can have 2-n of at least one argument type (old Binding)
if self.styles["binary"]:
category = "pos"
else:
category = entity.get("type")
assert category != None
else:
category = "neg"
self.exampleStats.beginExample(category)
issues = defaultdict(int)
# early out for proteins etc.
if validIntTypeCount == 0 and entity.get("given") == "True":
self.exampleStats.filter("given-leaf:" + entity.get("type"))
if self.debug:
print >> sys.stderr, " ", category +"("+eType+")", "arg combination", argCombination, "LEAF"
elif not structureAnalyzer.isValidEvent(entity, argCombination, self.documentEntitiesById, issues=issues):
for key in issues:
self.exampleStats.filter(key)
if self.debug:
print >> sys.stderr, " ", category, "arg combination", argCombination, "INVALID", issues
else:
if self.debug:
print >> sys.stderr, " ", category, "arg combination", argCombination, "VALID"
features = {}
argString = ""
for arg in argCombination:
argString += "," + arg.get("type") + "=" + arg.get("id")
extra = {"xtype":"um","e":entity.get("id"),"i":argString[1:],"etype":eType,"class":category}
extra["allInt"] = interactionCountString
assert type(extra["etype"]) in types.StringTypes, extra
assert type(extra["class"]) in types.StringTypes, category
assert type(extra["i"]) in types.StringTypes, argString
example = self.buildExample(sentenceGraph, paths, entity, argCombination, interactions)
example[0] = sentenceGraph.getSentenceId()+".x"+str(exampleIndex)
example[1] = self.classSet.getId(category)
example[3] = extra
#examples.append( example )
ExampleUtils.appendExamples([example], outfile)
exampleIndex += 1
self.exampleStats.endExample()
#return examples
return exampleIndex
def buildExamplesFromGraph(self, sentenceGraph, outfile, goldGraph = None, structureAnalyzer=None):
"""
Build examples for a single sentence. Returns a list of examples.
See Core/ExampleUtils for example format.
"""
#examples = []
exampleIndex = 0
# example directionality
if self.styles["directed"] == None and self.styles["undirected"] == None: # determine directedness from corpus
examplesAreDirected = structureAnalyzer.hasDirectedTargets() if structureAnalyzer != None else True
elif self.styles["directed"]:
assert self.styles["undirected"] in [None, False]
examplesAreDirected = True
elif self.styles["undirected"]:
assert self.styles["directed"] in [None, False]
examplesAreDirected = False
if not self.styles["no_trigger_features"]:
self.triggerFeatureBuilder.initSentence(sentenceGraph)
if self.styles["evex"]:
self.evexFeatureBuilder.initSentence(sentenceGraph)
# if self.styles["sdb_merge"]:
# self.determineNonOverlappingTypes(structureAnalyzer)
# Filter entities, if needed
sentenceGraph.mergeInteractionGraph(True)
entities = sentenceGraph.mergedEntities
entityToDuplicates = sentenceGraph.mergedEntityToDuplicates
self.exampleStats.addValue("Duplicate entities skipped", len(sentenceGraph.entities) - len(entities))
# Connect to optional gold graph
entityToGold = None
if goldGraph != None:
entityToGold = EvaluateInteractionXML.mapEntities(entities, goldGraph.entities)
paths = None
if not self.styles["no_path"]:
undirected = sentenceGraph.dependencyGraph.toUndirected()
paths = undirected
if self.styles["filter_shortest_path"] != None: # For DDI use filter_shortest_path=conj_and
paths.resetAnalyses() # just in case
paths.FloydWarshall(self.filterEdge, {"edgeTypes":self.styles["filter_shortest_path"]})
# Generate examples based on interactions between entities or interactions between tokens
if self.styles["token_nodes"]:
loopRange = len(sentenceGraph.tokens)
else:
loopRange = len(entities)
for i in range(loopRange-1):
for j in range(i+1,loopRange):
eI = None
eJ = None
if self.styles["token_nodes"]:
tI = sentenceGraph.tokens[i]
tJ = sentenceGraph.tokens[j]
else:
eI = entities[i]
eJ = entities[j]
tI = sentenceGraph.entityHeadTokenByEntity[eI]
tJ = sentenceGraph.entityHeadTokenByEntity[eJ]
if eI.get("type") == "neg" or eJ.get("type") == "neg":
continue
if self.styles["skip_extra_triggers"]:
if eI.get("source") != None or eJ.get("source") != None:
continue
# only consider paths between entities (NOTE! entities, not only named entities)
if self.styles["headsOnly"]:
if (len(sentenceGraph.tokenIsEntityHead[tI]) == 0) or (len(sentenceGraph.tokenIsEntityHead[tJ]) == 0):
continue
examples = self.buildExamplesForPair(tI, tJ, paths, sentenceGraph, goldGraph, entityToGold, eI, eJ, structureAnalyzer, examplesAreDirected)
for categoryName, features, extra in examples:
# make example
if self.styles["binary"]:
if categoryName != "neg":
category = 1
else:
category = -1
extra["categoryName"] = "i"
else:
category = self.classSet.getId(categoryName)
example = [sentenceGraph.getSentenceId()+".x"+str(exampleIndex), category, features, extra]
ExampleUtils.appendExamples([example], outfile)
exampleIndex += 1
return exampleIndex
def buildExamplesFromGraph(self,
sentenceGraph,
outfile,
goldGraph=None,
structureAnalyzer=None):
"""
Build one example for each token of the sentence
"""
if sentenceGraph.sentenceElement.get("origId") in self.skiplist:
print >> sys.stderr, "Skipping sentence", sentenceGraph.sentenceElement.get(
"origId")
return 0 #[]
#examples = []
exampleIndex = 0
self.tokenFeatures = {}
self.tokenFeatureWeights = {}
# determine (manually or automatically) the setting for whether sentences with no given entities should be skipped
buildForNameless = False
if structureAnalyzer and not structureAnalyzer.hasGroupClass(
"GIVEN", "ENTITY"
): # no given entities points to no separate NER program being used
buildForNameless = True
if self.styles["build_for_nameless"]: # manually force the setting
buildForNameless = True
if self.styles["skip_for_nameless"]: # manually force the setting
buildForNameless = False
# determine whether sentences with no given entities should be skipped
namedEntityHeadTokens = []
if not self.styles["names"]:
namedEntityCount = 0
for entity in sentenceGraph.entities:
if entity.get(
"given"
) == "True": # known data which can be used for features
namedEntityCount += 1
namedEntityCountFeature = "nameCount_" + str(namedEntityCount)
# NOTE!!! This will change the number of examples and omit
# all triggers (positive and negative) from sentences which
# have no NE:s, possibly giving a too-optimistic performance
# value. Such sentences can still have triggers from intersentence
# interactions, but as such events cannot be recovered anyway,
# looking for these triggers would be pointless.
if namedEntityCount == 0 and not buildForNameless: # no names, no need for triggers
return 0 #[]
if self.styles["pos_pairs"]:
namedEntityHeadTokens = self.getNamedEntityHeadTokens(
sentenceGraph)
else:
for key in sentenceGraph.tokenIsName.keys():
sentenceGraph.tokenIsName[key] = False
bagOfWords = {}
for token in sentenceGraph.tokens:
text = "bow_" + token.get("text")
if not bagOfWords.has_key(text):
bagOfWords[text] = 0
bagOfWords[text] += 1
if sentenceGraph.tokenIsName[token]:
text = "ne_" + text
if not bagOfWords.has_key(text):
bagOfWords[text] = 0
bagOfWords[text] += 1
bowFeatures = {}
for k in sorted(bagOfWords.keys()):
bowFeatures[self.featureSet.getId(k)] = bagOfWords[k]
self.inEdgesByToken = {}
self.outEdgesByToken = {}
self.edgeSetByToken = {}
for token in sentenceGraph.tokens:
#inEdges = sentenceGraph.dependencyGraph.in_edges(token, data=True)
#fixedInEdges = []
#for edge in inEdges:
# fixedInEdges.append( (edge[0], edge[1], edge[2]["element"]) )
#inEdges = fixedInEdges
inEdges = sentenceGraph.dependencyGraph.getInEdges(token)
#inEdges.sort(compareDependencyEdgesById)
self.inEdgesByToken[token] = inEdges
#outEdges = sentenceGraph.dependencyGraph.out_edges(token, data=True)
#fixedOutEdges = []
#for edge in outEdges:
# fixedOutEdges.append( (edge[0], edge[1], edge[2]["element"]) )
#outEdges = fixedOutEdges
outEdges = sentenceGraph.dependencyGraph.getOutEdges(token)
#outEdges.sort(compareDependencyEdgesById)
self.outEdgesByToken[token] = outEdges
self.edgeSetByToken[token] = set(inEdges + outEdges)
for i in range(len(sentenceGraph.tokens)):
token = sentenceGraph.tokens[i]
# CLASS
if len(sentenceGraph.tokenIsEntityHead[token]) > 0:
categoryName, entityIds = self.getMergedEntityType(
sentenceGraph.tokenIsEntityHead[token])
else:
categoryName, entityIds = "neg", None
self.exampleStats.beginExample(categoryName)
# Recognize only non-named entities (i.e. interaction words)
if sentenceGraph.tokenIsName[token] and not self.styles[
"names"] and not self.styles["all_tokens"]:
self.exampleStats.filter("name")
self.exampleStats.endExample()
continue
# if "selftrain_limits" in self.styles:
# # any predicted entity not part of the self-training set causes example to be rejected
# filtered = False
# for entity in sentenceGraph.tokenIsEntityHead[token]:
# if entity.get("selftrain") == "False":
# self.exampleStats.filter("selftrain_limits")
# self.exampleStats.endExample()
# filtered = True
# break
# if filtered:
# continue
# if "selftrain_group" in self.styles:
# # any predicted entity not part of the self-training set causes example to be rejected
# filtered = False
# for entity in sentenceGraph.tokenIsEntityHead[token]:
# if entity.get("selftraingroup") not in self.selfTrainGroups:
# self.exampleStats.filter("selftrain_group")
# self.exampleStats.endExample()
# filtered = True
# break
# if filtered:
# continue
if self.styles["pos_only"] and categoryName == "neg":
self.exampleStats.filter("pos_only")
self.exampleStats.endExample()
continue
category = self.classSet.getId(categoryName)
if category == None:
self.exampleStats.filter("undefined_class")
self.exampleStats.endExample()
continue
tokenText = token.get("text").lower()
# if "stem_gazetteer" in self.styles:
# tokenText = PorterStemmer.stem(tokenText)
# if ("exclude_gazetteer" in self.styles) and self.gazetteer and tokenText not in self.gazetteer:
# features = {}
# features[self.featureSet.getId("exclude_gazetteer")] = 1
# extra = {"xtype":"token","t":token.get("id"),"excluded":"True"}
# if entityIds != None:
# extra["goldIds"] = entityIds
# #examples.append( (sentenceGraph.getSentenceId()+".x"+str(exampleIndex),category,features,extra) )
# ExampleUtils.appendExamples([(sentenceGraph.getSentenceId()+".x"+str(exampleIndex),category,features,extra)], outfile)
# exampleIndex += 1
# continue
# FEATURES
features = {}
if not self.styles["names"]:
features[self.featureSet.getId(namedEntityCountFeature)] = 1
#for k,v in bagOfWords.iteritems():
# features[self.featureSet.getId(k)] = v
# pre-calculate bow _features_
features.update(bowFeatures)
# for j in range(len(sentenceGraph.tokens)):
# text = "bow_" + sentenceGraph.tokens[j].get("text")
# if j < i:
# features[self.featureSet.getId("bf_" + text)] = 1
# elif j > i:
# features[self.featureSet.getId("af_" + text)] = 1
# Main features
text = token.get("text")
features[self.featureSet.getId("txt_" + text)] = 1
features[self.featureSet.getId("POS_" + token.get("POS"))] = 1
stem = PorterStemmer.stem(text)
features[self.featureSet.getId("stem_" + stem)] = 1
features[self.featureSet.getId("nonstem_" + text[len(stem):])] = 1
# Normalized versions of the string (if same as non-normalized, overlap without effect)
normalizedText = text.replace("-", "").replace("/", "").replace(
",", "").replace("\\", "").replace(" ", "").lower()
if normalizedText == "bound": # should be for all irregular verbs
normalizedText = "bind"
features[self.featureSet.getId("txt_" + normalizedText)] = 1
norStem = PorterStemmer.stem(normalizedText)
features[self.featureSet.getId("stem_" + norStem)] = 1
features[self.featureSet.getId("nonstem_" +
normalizedText[len(norStem):])] = 1
## Subspan features
#textLower = text.lower()
#for i in range(1, len(textLower)):
# features[self.featureSet.getId("subspanbegin"+str(i)+"_"+textLower[0:i])] = 1
# features[self.featureSet.getId("subspanend"+str(i)+"_"+textLower[-i:])] = 1
# Substring features
for string in text.split("-"):
stringLower = string.lower()
features[self.featureSet.getId("substring_" + stringLower)] = 1
features[self.featureSet.getId(
"substringstem_" + PorterStemmer.stem(stringLower))] = 1
if not self.styles["no_context"]:
# Linear order features
for index in [-3, -2, -1, 1, 2, 3]:
if i + index > 0 and i + index < len(sentenceGraph.tokens):
self.buildLinearOrderFeatures(sentenceGraph, i + index,
str(index), features)
# Linear n-grams
if self.styles["linear_ngrams"]:
self.buildLinearNGram(max(0, i - 1), i, sentenceGraph,
features)
self.buildLinearNGram(max(0, i - 2), i, sentenceGraph,
features)
if self.styles["phospho"]:
if text.find("hospho") != -1:
features[self.featureSet.getId("phospho_found")] = 1
features[self.featureSet.getId("begin_" +
text[0:2].lower())] = 1
features[self.featureSet.getId("begin_" +
text[0:3].lower())] = 1
if self.styles["bb_features"]:
if text.lower() in self.bacteriaTokens:
features[self.featureSet.getId("lpsnBacToken")] = 1
# Content
if i > 0 and text[0].isalpha() and text[0].isupper():
features[self.featureSet.getId("upper_case_start")] = 1
for j in range(len(text)):
if j > 0 and text[j].isalpha() and text[j].isupper():
features[self.featureSet.getId("upper_case_middle")] = 1
# numbers and special characters
if text[j].isdigit():
features[self.featureSet.getId("has_digits")] = 1
if j > 0 and text[j - 1] == "-":
features[self.featureSet.getId(
"has_hyphenated_digit")] = 1
elif text[j] == "-":
features[self.featureSet.getId("has_hyphen")] = 1
elif text[j] == "/":
features[self.featureSet.getId("has_fslash")] = 1
elif text[j] == "\\":
features[self.featureSet.getId("has_bslash")] = 1
# duplets
if j > 0:
features[self.featureSet.getId("dt_" +
text[j - 1:j +
1].lower())] = 1
# triplets
if j > 1:
features[self.featureSet.getId("tt_" +
text[j - 2:j +
1].lower())] = 1
# quadruplets (don't work, slight decrease (0.5 pp) on f-score
#if j > 2:
# features[self.featureSet.getId("qt_"+text[j-3:j+1].lower())] = 1
# Attached edges (Hanging in and out edges)
if not self.styles["no_context"]:
t1InEdges = self.inEdgesByToken[token]
for edge in t1InEdges:
edgeType = edge[2].get("type")
features[self.featureSet.getId("t1HIn_" + edgeType)] = 1
features[self.featureSet.getId("t1HIn_" +
edge[0].get("POS"))] = 1
features[self.featureSet.getId("t1HIn_" + edgeType + "_" +
edge[0].get("POS"))] = 1
tokenText = sentenceGraph.getTokenText(edge[0])
features[self.featureSet.getId("t1HIn_" + tokenText)] = 1
features[self.featureSet.getId("t1HIn_" + edgeType + "_" +
tokenText)] = 1
tokenStem = PorterStemmer.stem(tokenText)
features[self.featureSet.getId("t1HIn_" + tokenStem)] = 1
features[self.featureSet.getId("t1HIn_" + edgeType + "_" +
tokenStem)] = 1
features[self.featureSet.getId("t1HIn_" + norStem + "_" +
edgeType + "_" +
tokenStem)] = 1
t1OutEdges = self.outEdgesByToken[token]
for edge in t1OutEdges:
edgeType = edge[2].get("type")
features[self.featureSet.getId("t1HOut_" + edgeType)] = 1
features[self.featureSet.getId("t1HOut_" +
edge[1].get("POS"))] = 1
features[self.featureSet.getId("t1HOut_" + edgeType + "_" +
edge[1].get("POS"))] = 1
tokenText = sentenceGraph.getTokenText(edge[1])
features[self.featureSet.getId("t1HOut_" + tokenText)] = 1
features[self.featureSet.getId("t1HOut_" + edgeType + "_" +
tokenText)] = 1
tokenStem = PorterStemmer.stem(tokenText)
features[self.featureSet.getId("t1HOut_" + tokenStem)] = 1
features[self.featureSet.getId("t1HOut_" + edgeType + "_" +
tokenStem)] = 1
features[self.featureSet.getId("t1HOut_" + norStem + "_" +
edgeType + "_" +
tokenStem)] = 1
# REL features
if self.styles["rel_features"]:
self.relFeatureBuilder.setFeatureVector(features)
self.relFeatureBuilder.buildAllFeatures(
sentenceGraph.tokens, i)
self.relFeatureBuilder.setFeatureVector(None)
# DDI13 features
if self.styles["ddi13_features"]:
for index in range(len(normalizedText)):
features[self.featureSet.getId("ddi13_fromstart" +
str(index) + "_" +
normalizedText[:index +
1])] = 1
features[self.featureSet.getId("ddi13_fromend" +
str(index) + "_" +
normalizedText[index:])] = 1
if self.styles["drugbank_features"]:
self.drugFeatureBuilder.setFeatureVector(features)
self.drugFeatureBuilder.tag = "ddi_"
self.drugFeatureBuilder.buildDrugFeatures(token)
self.drugFeatureBuilder.setFeatureVector(None)
#self.wordNetFeatureBuilder.getTokenFeatures("show", "VBP")
#tokTxt = token.get("text")
#tokPOS = token.get("POS")
#wordNetFeatures = []
#wordNetFeatures = self.wordNetFeatureBuilder.getTokenFeatures(tokTxt, tokPOS)
#self.wordNetFeatureBuilder.getTokenFeatures(tokTxt, tokPOS)
if self.styles["wordnet"]:
tokTxt = token.get("text")
tokPOS = token.get("POS")
wordNetFeatures = self.wordNetFeatureBuilder.getTokenFeatures(
tokTxt, tokPOS)
for wordNetFeature in wordNetFeatures:
#print wordNetFeature,
features[self.featureSet.getId("WN_" + wordNetFeature)] = 1
#print
if self.styles["giuliano"]:
self.giulianoFeatureBuilder.setFeatureVector(features)
self.giulianoFeatureBuilder.buildTriggerFeatures(
token, sentenceGraph)
self.giulianoFeatureBuilder.setFeatureVector(None)
if self.styles["ontobiotope_features"]:
self.ontobiotopeFeatureBuilder.setFeatureVector(features)
self.ontobiotopeFeatureBuilder.buildOBOFeaturesForToken(token)
self.ontobiotopeFeatureBuilder.setFeatureVector(None)
extra = {"xtype": "token", "t": token.get("id")}
if self.styles["bb_features"]:
extra[
"trigex"] = "bb" # Request trigger extension in ExampleWriter
if self.styles["epi_merge_negated"]:
extra["unmergeneg"] = "epi" # Request trigger type unmerging
if entityIds != None:
extra[
"goldIds"] = entityIds # The entities to which this example corresponds
#examples.append( (sentenceGraph.getSentenceId()+".x"+str(exampleIndex),category,features,extra) )
if self.styles["bb_spans"]:
for span in sentenceGraph.sentenceElement.iter("span"):
if span.get("headOffset") != token.get("charOffset"):
continue
#if span.get("source") != "spec":
# continue
#print span.get("headOffset"), token.get("charOffset"), span.get("source"), token.get("id")
features[self.featureSet.getId("span_found")] = 1
features[self.featureSet.getId(
"span_count")] = 1 + features.get(
self.featureSet.getId("span_count"), 0)
features[self.featureSet.getId("span_identifier" +
span.get("identifier"))] = 1
features[self.featureSet.getId("span_type" +
span.get("type"))] = 1
features[self.featureSet.getId("span_category" +
span.get("category"))] = 1
features[self.featureSet.getId("span_source" +
span.get("source"))] = 1
if "define_offset" in extra:
prevOffset = [
int(x) for x in extra["define_offset"].split("-")
]
assert len(prevOffset) == 2
newOffset = [
int(x) for x in span.get("charOffset").split("-")
]
assert len(newOffset) == 2
prevOffsetRange = abs(prevOffset[0] - prevOffset[1])
newOffsetRange = abs(newOffset[0] - newOffset[1])
if newOffsetRange > prevOffsetRange:
extra["define_offset"] = span.get("charOffset")
else:
extra["define_offset"] = span.get("charOffset")
features[self.featureSet.getId("span_count_" + str(
features.get(self.featureSet.getId("span_count"), 0)))] = 1
# chains
if not self.styles["no_context"]:
self.buildChains(token, sentenceGraph, features)
if self.styles["pos_pairs"]:
self.buildPOSPairs(token, namedEntityHeadTokens, features)
if self.styles["wordvector"]:
self.wordVectorFeatureBuilder.setFeatureVector(features)
self.wordVectorFeatureBuilder.buildFeatures(token)
self.wordVectorFeatureBuilder.setFeatureVector(None)
example = (sentenceGraph.getSentenceId() + ".x" +
str(exampleIndex), category, features, extra)
ExampleUtils.appendExamples([example], outfile)
exampleIndex += 1
self.exampleStats.endExample()
#return examples
return exampleIndex
def compareExamples(examples1, examples2, features1, features2=None):
ExampleUtils.readExamples(examples1)
exampleIter1 = ExampleUtils.readExamples(examples1)
exampleIter2 = ExampleUtils.readExamples(examples2)
features1 = IdSet(filename=features1)
if features2 != None:
features2 = IdSet(filename=features2)
else:
features2 = features1
# Compare feature sets
if set(features1.Ids.keys()) != set(features2.Ids.keys()):
print "Feature sets differ"
# Compare examples
counter = ProgressCounter(step=1)
for e1, e2 in itertools.izip(exampleIter1, exampleIter2):
counter.update()
assert e1[0] == e2[0], (removeFeatures(e1), removeFeatures(e2))
if e1[1] != e2[1]:
print "Class differs"
print " E1", removeFeatures(e1)
print " E2", removeFeatures(e2)
f1 = getFeatureNames(e1, features1)
f2 = getFeatureNames(e2, features2)
f1Set = set(f1)
f2Set = set(f2)
f1Only = f1Set.difference(f2Set)
f2Only = f2Set.difference(f1Set)
if len(f1Only) > 0 or len(f2Only) > 0:
print "Features differ"
print " E1", removeFeatures(e1)
print " E2", removeFeatures(e2)
if len(f1Only) > 0:
print " E1-only features:", f1Only
if len(f2Only) > 0:
print " E2-only features:", f2Only
else:
assert len(f1) == len(f2)
fCount = 0
differ = False
for feature1, feature2 in zip(f1, f2):
#f1Id = features1.getId(feature1, createIfNotExist=False)
#if f1Id == 454 or feature1 == "e1_strength_Positive_regulation":
# print "!!!!!!!!!!!", 454, feature1, e1[2][f1Id]
if feature1 != feature2:
if not differ:
print "Feature order differs for example", e1[0]
differ = True
print "[" + feature1 + "/" + feature2 + "](" + str(fCount) + ") ",
else:
f1Id = features1.getId(feature1, createIfNotExist=False)
f2Id = features2.getId(feature2, createIfNotExist=False)
f1Value = e1[2][f1Id]
f2Value = e2[2][f2Id]
if f1Value != f2Value:
if not differ:
print "Feature values differ", e1[0]
differ = True
print "[" + feature1 + "/" + str(f1Id) + "]" + "[" + str(f1Value) + "/" + str(f2Value) + "]" + "(" + str(fCount) + ") ",
fCount += 1
if differ:
print
counter.endUpdate()
def test(cls,
examples,
modelPath,
output=None,
parameters=None,
forceInternal=False,
classIds=None): # , timeout=None):
"""
Classify examples with a pre-trained model.
@type examples: string (filename) or list (or iterator) of examples
@param examples: a list or file containing examples in SVM-format
@type modelPath: string
@param modelPath: filename of the pre-trained model file
@type parameters: a dictionary or string
@param parameters: parameters for the classifier
@type output: string
@param output: the name of the predictions file to be written
@type forceInternal: Boolean
@param forceInternal: Use python classifier even if SVM Multiclass binary is defined in Settings.py
"""
#if forceInternal or Settings.SVMMultiClassDir == None:
# return cls.testInternal(examples, modelPath, output)
timer = Timer()
if type(examples) == types.ListType:
print >> sys.stderr, "Classifying", len(
examples), "with SVM-Light model", modelPath
examples, predictions = self.filterClassificationSet(
examples, False)
testPath = self.tempDir + "/test.dat"
Example.writeExamples(examples, testPath)
else:
print >> sys.stderr, "Classifying file", examples, "with SVM-Light model", modelPath
testPath = examples
#examples = Example.readExamples(examples,False)
if os.environ.has_key("METAWRK"):
args = [SVMMultiClassClassifier.louhiBinDir + "/svm_classify"]
else:
args = [self.binDir + "/svm_classify"]
if modelPath == None:
modelPath = "model"
if parameters != None:
parameters = copy.copy(parameters)
if parameters.has_key("c"):
del parameters["c"]
if parameters.has_key("predefined"):
parameters = copy.copy(parameters)
modelPath = os.path.join(parameters["predefined"][0],
"classifier/model")
del parameters["predefined"]
self.__addParametersToSubprocessCall(args, parameters)
if output == None:
output = "predictions"
logFile = open("svmlight.log", "at")
else:
logFile = open(output + ".log", "wt")
args += [testPath, modelPath, output]
#if timeout == None:
# timeout = -1
#print args
subprocess.call(args, stdout=logFile, stderr=logFile)
predictionsFile = open(output, "rt")
lines = predictionsFile.readlines()
predictionsFile.close()
predictions = []
for i in range(len(lines)):
predictions.append([int(lines[i].split()[0])] +
lines[i].split()[1:])
#predictions.append( (examples[i],int(lines[i].split()[0]),"multiclass",lines[i].split()[1:]) )
print >> sys.stderr, timer.toString()
return predictions
def optimize(self,
examples,
outDir,
parameters,
classifyExamples,
classIds,
step="BOTH",
evaluator=None,
determineThreshold=False,
timeout=None,
downloadAllModels=False):
assert step in ["BOTH", "SUBMIT", "RESULTS"], step
outDir = os.path.abspath(outDir)
# Initialize training (or reconnect to existing jobs)
combinations = Parameters.getCombinations(
Parameters.get(parameters, valueListKey="c")
) #Core.OptimizeParameters.getParameterCombinations(parameters)
trained = []
for combination in combinations:
trained.append(
self.train(examples,
outDir,
combination,
classifyExamples,
replaceRemoteExamples=(len(trained) == 0),
dummy=(step == "RESULTS")))
if step == "SUBMIT": # Return already
classifier = copy.copy(self)
classifier.setState("OPTIMIZE")
return classifier
# Wait for the training to finish
finalJobStatus = self.connection.waitForJobs(
[x.getJob() for x in trained])
# Evaluate the results
print >> sys.stderr, "Evaluating results"
#Stream.setIndent(" ")
bestResult = None
if evaluator == None:
evaluator = self.defaultEvaluator
for i in range(len(combinations)):
id = trained[i].parameterIdStr
#Stream.setIndent(" ")
# Get predictions
predictions = None
if trained[i].getStatus() == "FINISHED":
predictions = trained[i].downloadPredictions()
else:
print >> sys.stderr, "No results for combination" + id
continue
if downloadAllModels:
trained[i].downloadModel()
# Compare to other results
print >> sys.stderr, "*** Evaluating results for combination" + id + " ***"
threshold = None
if determineThreshold:
print >> sys.stderr, "Thresholding, original micro =",
evaluation = evaluator.evaluate(
classifyExamples,
predictions,
classIds,
os.path.join(outDir,
"evaluation-before-threshold" + id + ".csv"),
verbose=False)
print >> sys.stderr, evaluation.microF.toStringConcise()
threshold, bestF = evaluator.threshold(classifyExamples,
predictions)
print >> sys.stderr, "threshold =", threshold, "at binary fscore", str(
bestF)[0:6]
evaluation = evaluator.evaluate(
classifyExamples,
ExampleUtils.loadPredictions(predictions, threshold=threshold),
classIds, os.path.join(outDir, "evaluation" + id + ".csv"))
if bestResult == None or evaluation.compare(
bestResult[0]
) > 0: #: averageResult.fScore > bestResult[1].fScore:
bestResult = [
evaluation, trained[i], combinations[i], threshold
]
if not self.connection.isLocal():
os.remove(predictions) # remove predictions to save space
#Stream.setIndent()
if bestResult == None:
raise Exception("No results for any parameter combination")
print >> sys.stderr, "*** Evaluation complete", finalJobStatus, "***"
print >> sys.stderr, "Selected parameters", bestResult[2]
classifier = copy.copy(bestResult[1])
classifier.threshold = bestResult[3]
classifier.downloadModel()
return classifier