def __init__(self, field):
numpy.random.seed(21)
dataDir = PathDefaults.getDataDir() + "dblp/"
self.xmlFileName = dataDir + "dblp.xml"
self.xmlCleanFilename = dataDir + "dblpClean.xml"
resultsDir = PathDefaults.getDataDir() + "reputation/" + field + "/"
self.expertsFileName = resultsDir + "experts.txt"
self.expertMatchesFilename = resultsDir + "experts_matches.csv"
self.trainExpertMatchesFilename = resultsDir + "experts_train_matches.csv"
self.testExpertMatchesFilename = resultsDir + "experts_test_matches.csv"
self.coauthorsFilename = resultsDir + "coauthors.csv"
self.publicationsFilename = resultsDir + "publications.csv"
self.stepSize = 100000
self.numLines = 33532888
self.publicationTypes = set(["article" , "inproceedings", "proceedings", "book", "incollection", "phdthesis", "mastersthesis", "www"])
self.p = 0.5
self.matchCutoff = 0.95
self.cleanXML()
self.matchExperts()
logging.warning("Now you must disambiguate the matched experts if not ready done")
def processSimpleDataset(name, numRealisations, split, ext=".csv", delimiter=",", usecols=None, skiprows=1, converters=None):
numpy.random.seed(21)
dataDir = PathDefaults.getDataDir() + "modelPenalisation/regression/"
fileName = dataDir + name + ext
print("Loading data from file " + fileName)
outputDir = PathDefaults.getDataDir() + "modelPenalisation/regression/" + name + "/"
XY = numpy.loadtxt(fileName, delimiter=delimiter, skiprows=skiprows, usecols=usecols, converters=converters)
X = XY[:, :-1]
y = XY[:, -1]
idx = Sampling.shuffleSplit(numRealisations, X.shape[0], split)
preprocessSave(X, y, outputDir, idx)
def testGenerateRandomGraph(self):
egoFileName = PathDefaults.getDataDir() + "infoDiffusion/EgoData.csv"
alterFileName = PathDefaults.getDataDir() + "infoDiffusion/AlterData.csv"
numVertices = 1000
infoProb = 0.1
p = 0.1
neighbours = 10
generator = SmallWorldGenerator(p, neighbours)
graph = SparseGraph(VertexList(numVertices, 0))
graph = generator.generate(graph)
self.svmEgoSimulator.generateRandomGraph(egoFileName, alterFileName, infoProb, graph)
def flixster(minNnzRows=10, minNnzCols=2, quantile=90):
matrixFileName = PathDefaults.getDataDir() + "flixster/Ratings.timed.txt"
matrixFile = open(matrixFileName)
matrixFile.readline()
userIndexer = IdIndexer("i")
movieIndexer = IdIndexer("i")
ratings = array.array("f")
logging.debug("Loading ratings from " + matrixFileName)
for i, line in enumerate(matrixFile):
if i % 1000000 == 0:
logging.debug("Iteration: " + str(i))
vals = line.split()
userIndexer.append(vals[0])
movieIndexer.append(vals[1])
ratings.append(float(vals[2]))
rowInds = userIndexer.getArray()
colInds = movieIndexer.getArray()
ratings = numpy.array(ratings)
X = sppy.csarray((len(userIndexer.getIdDict()), len(movieIndexer.getIdDict())), storagetype="row", dtype=numpy.int)
X.put(numpy.array(ratings>3, numpy.int), numpy.array(rowInds, numpy.int32), numpy.array(colInds, numpy.int32), init=True)
X.prune()
X = SparseUtils.pruneMatrixRowAndCols(X, minNnzRows, minNnzCols)
logging.debug("Read file: " + matrixFileName)
logging.debug("Non zero elements: " + str(X.nnz) + " shape: " + str(X.shape))
#X = Sampling.sampleUsers(X, 1000)
return X
def main(argv=None):
if argv is None:
argv = sys.argv
try:
# read options
try:
opts, args = getopt.getopt(argv[1:], "hd:n:D", ["help", "dir=", "nb_user="******"debug"])
except getopt.error as msg:
raise RGUsage(msg)
# apply options
dir = PathDefaults.getDataDir() + "cluster/"
nb_user = None
log_level = logging.INFO
for o, a in opts:
if o in ("-h", "--help"):
print(__doc__)
return 0
elif o in ("-d", "--dir"):
dir = a
elif o in ("-n", "--nb_user"):
nb_user = int(a)
elif o in ("-D", "--debug"):
log_level = logging.DEBUG
logging.basicConfig(stream=sys.stdout, level=log_level, format='%(levelname)s (%(asctime)s):%(message)s')
# process: generate data files
BemolData.generate_data_file(dir, nb_user)
except RGUsage as err:
logging.error(err.msg)
logging.error("for help use --help")
return 2
def __init__(self, maxIter=None, iterStartTimeStamp=None):
outputDir = PathDefaults.getOutputDir() + "recommend/erasm/"
if not os.path.exists(outputDir):
os.mkdir(outputDir)
#iterStartDate is the starting date of the iterator
if iterStartTimeStamp != None:
self.iterStartTimeStamp = iterStartTimeStamp
else:
self.iterStartTimeStamp = 1286229600
self.timeStep = timedelta(30).total_seconds()
self.ratingFileName = outputDir + "data.npz"
self.userDictFileName = outputDir + "userIdDict.pkl"
self.groupDictFileName = outputDir + "groupIdDict.pkl"
self.isTrainRatingsFileName = outputDir + "is_train.npz"
self.dataDir = PathDefaults.getDataDir() + "erasm/"
self.dataFileName = self.dataDir + "groupMembers-29-11-12"
self.maxIter = maxIter
self.trainSplit = 4.0/5
self.processRatings()
self.splitDataset()
self.loadProcessedData()
def testEdgeFile(self):
"""
Figure out the problem with the edge file
"""
dataDir = PathDefaults.getDataDir() + "cluster/"
edgesFilename = dataDir + "Cit-HepTh.txt"
edges = {}
file = open(edgesFilename, 'r')
file.readline()
file.readline()
file.readline()
file.readline()
vertices = {}
for line in file:
(vertex1, sep, vertex2) = line.partition("\t")
vertex1 = vertex1.strip()
vertex2 = vertex2.strip()
edges[(vertex1, vertex2)] = 0
vertices[vertex1] = 0
vertices[vertex2] = 0
#It says there are 352807 edges in paper and 27770 vertices
self.assertEquals(len(edges), 352807)
self.assertEquals(len(vertices), 27770)
def epinions(minNnzRows=10, minNnzCols=3, quantile=90):
matrixFileName = PathDefaults.getDataDir() + "epinions/rating.mat"
A = scipy.io.loadmat(matrixFileName)["rating"]
userIndexer = IdIndexer("i")
itemIndexer = IdIndexer("i")
for i in range(A.shape[0]):
userIndexer.append(A[i, 0])
itemIndexer.append(A[i, 1])
rowInds = userIndexer.getArray()
colInds = itemIndexer.getArray()
ratings = A[:, 3]
X = sppy.csarray((len(userIndexer.getIdDict()), len(itemIndexer.getIdDict())), storagetype="row", dtype=numpy.int)
X.put(numpy.array(ratings>3, numpy.int), numpy.array(rowInds, numpy.int32), numpy.array(colInds, numpy.int32), init=True)
X.prune()
X = SparseUtils.pruneMatrixRowAndCols(X, minNnzRows, minNnzCols)
logging.debug("Read file: " + matrixFileName)
logging.debug("Non zero elements: " + str(X.nnz) + " shape: " + str(X.shape))
return X
def testToyData(self):
dataDir = PathDefaults.getDataDir() + "modelPenalisation/toy/"
data = numpy.load(dataDir + "toyData.npz")
gridPoints, X, y, pdfX, pdfY1X, pdfYminus1X = data["arr_0"], data["arr_1"], data["arr_2"], data["arr_3"], data["arr_4"], data["arr_5"]
pxSum = 0
pY1XSum = 0
pYminus1XSum = 0
px2Sum = 0
squareArea = (gridPoints[1]-gridPoints[0])**2
for i in range(gridPoints.shape[0]-1):
for j in range(gridPoints.shape[0]-1):
px = (pdfX[i,j]+pdfX[i+1,j]+pdfX[i, j+1]+pdfX[i+1, j+1])/4
pxSum += px*squareArea
pY1X = (pdfY1X[i,j]+pdfY1X[i+1,j]+pdfY1X[i, j+1]+pdfY1X[i+1, j+1])/4
pY1XSum += pY1X*squareArea
pYminus1X = (pdfYminus1X[i,j]+pdfYminus1X[i+1,j]+pdfYminus1X[i, j+1]+pdfYminus1X[i+1, j+1])/4
pYminus1XSum += pYminus1X*squareArea
px2Sum += px*pY1X*squareArea + px*pYminus1X*squareArea
self.assertAlmostEquals(pxSum, 1)
print(pY1XSum)
print(pYminus1XSum)
self.assertAlmostEquals(px2Sum, 1)
def testComputeIdealPenalty(self):
dataDir = PathDefaults.getDataDir() + "modelPenalisation/toy/"
data = numpy.load(dataDir + "toyData.npz")
gridPoints, X, y, pdfX, pdfY1X, pdfYminus1X = data["arr_0"], data["arr_1"], data["arr_2"], data["arr_3"], data["arr_4"], data["arr_5"]
sampleSize = 100
trainX, trainY = X[0:sampleSize, :], y[0:sampleSize]
testX, testY = X[sampleSize:, :], y[sampleSize:]
#We form a test set from the grid points
fullX = numpy.zeros((gridPoints.shape[0]**2, 2))
for m in range(gridPoints.shape[0]):
fullX[m*gridPoints.shape[0]:(m+1)*gridPoints.shape[0], 0] = gridPoints
fullX[m*gridPoints.shape[0]:(m+1)*gridPoints.shape[0], 1] = gridPoints[m]
C = 1.0
gamma = 1.0
args = (trainX, trainY, fullX, C, gamma, gridPoints, pdfX, pdfY1X, pdfYminus1X)
penalty = computeIdealPenalty(args)
#Now compute penalty using data
args = (trainX, trainY, testX, testY, C, gamma)
penalty2 = computeIdealPenalty2(args)
self.assertAlmostEquals(penalty2, penalty, 2)
def __init__(self):
self.labelNames = ["Cortisol.val", "Testosterone.val", "IGF1.val"]
self.dataDir = PathDefaults.getDataDir() + "metabolomic/"
self.boundsDict = {}
self.boundsDict["Cortisol"] = numpy.array([0, 89, 225, 573])
self.boundsDict["Testosterone"] = numpy.array([0, 3, 9, 13])
self.boundsDict["IGF1"] = numpy.array([0, 200, 441, 782])
def testPredict2(self):
# Test on Gauss2D dataset
dataDir = PathDefaults.getDataDir()
fileName = dataDir + "Gauss2D_learn.csv"
XY = numpy.loadtxt(fileName, skiprows=1, usecols=(1, 2, 3), delimiter=",")
X = XY[:, 0:2]
y = XY[:, 2]
fileName = dataDir + "Gauss2D_test.csv"
testXY = numpy.loadtxt(fileName, skiprows=1, usecols=(1, 2, 3), delimiter=",")
testX = testXY[:, 0:2]
testY = testXY[:, 2]
X = Standardiser().standardiseArray(X)
testX = Standardiser().standardiseArray(testX)
maxDepths = range(3, 10)
trainAucs = numpy.array(
[0.7194734, 0.7284824, 0.7332185, 0.7348198, 0.7366152, 0.7367508, 0.7367508, 0.7367508]
)
testAucs = numpy.array([0.6789078, 0.6844632, 0.6867918, 0.6873420, 0.6874820, 0.6874400, 0.6874400, 0.6874400])
i = 0
# The results are approximately the same, but not exactly
for maxDepth in maxDepths:
treeRank = TreeRank(self.leafRanklearner)
treeRank.setMaxDepth(maxDepth)
treeRank.learnModel(X, y)
trainScores = treeRank.predict(X)
testScores = treeRank.predict(testX)
self.assertAlmostEquals(Evaluator.auc(trainScores, y), trainAucs[i], 2)
self.assertAlmostEquals(Evaluator.auc(testScores, testY), testAucs[i], 1)
i += 1
def getIterator():
dataDir = PathDefaults.getDataDir() + "cluster/"
nbUser = 10000 # set to 'None' to have all users
nbPurchasesPerIt = 500 # set to 'None' to take all the purchases per date
startingIteration = 300
endingIteration = 600 # set to 'None' to have all iterations
stepSize = 1
return itertools.islice(BemolData.getGraphIterator(dataDir, nbUser, nbPurchasesPerIt), startingIteration, endingIteration, stepSize)
def profileClusterFromIterator(self):
iterator = IncreasingSubgraphListIterator(self.graph, self.subgraphIndicesList)
dataDir = PathDefaults.getDataDir() + "cluster/"
#iterator = getBemolGraphIterator(dataDir)
def run():
clusterList, timeList, boundList = self.clusterer.clusterFromIterator(iterator, verbose=True)
print(timeList.cumsum(0))
ProfileUtils.profile('run()', globals(), locals())
def syntheticDataset2():
"""
Create a simple synthetic dataset using a power law distribution on users and items
"""
resultsDir = PathDefaults.getDataDir() + "syntheticRanking/"
matrixFileName = resultsDir + "dataset1.mtx"
X = sppy.io.mmread(matrixFileName, storagetype="row")
return X
def testGetTrainIteratorFunc(self):
dataFilename = PathDefaults.getDataDir() + "reference/author_document_count"
dataset = Static2IdValDataset(dataFilename)
trainIterator = dataset.getTrainIteratorFunc()()
testIterator = dataset.getTestIteratorFunc()()
for trainX in trainIterator:
testX = testIterator.next()
print(trainX.shape, trainX.nnz, testX.nnz)
self.assertEquals(trainX.shape, testX.shape)
def processParkinsonsDataset(name, numRealisations):
numpy.random.seed(21)
dataDir = PathDefaults.getDataDir() + "modelPenalisation/regression/"
fileName = dataDir + name + ".data"
XY = numpy.loadtxt(fileName, delimiter=",", skiprows=1)
inds = list(set(range(XY.shape[1])) - set([5, 6]))
X = XY[:, inds]
y1 = XY[:, 5]
y2 = XY[:, 6]
#We don't keep whole collections of patients
split = 0.5
idx = Sampling.shuffleSplit(numRealisations, X.shape[0], split)
outputDir = PathDefaults.getDataDir() + "modelPenalisation/regression/" + name + "-motor/"
preprocessSave(X, y1, outputDir, idx)
outputDir = PathDefaults.getDataDir() + "modelPenalisation/regression/" + name + "-total/"
preprocessSave(X, y2, outputDir, idx)
def profileClusterFromIterator(self):
iterator = IncreasingSubgraphListIterator(self.graph,
self.subgraphIndicesList)
dataDir = PathDefaults.getDataDir() + "cluster/"
#iterator = getBemolGraphIterator(dataDir)
def run():
clusterList, timeList, boundList = self.clusterer.clusterFromIterator(
iterator, verbose=True)
print(timeList.cumsum(0))
ProfileUtils.profile('run()', globals(), locals())
def profileSvd2(self):
dataDir = PathDefaults.getDataDir() + "erasm/contacts/"
trainFilename = dataDir + "contacts_train"
trainX = scipy.io.mmread(trainFilename)
trainX = scipy.sparse.csc_matrix(trainX, dtype=numpy.int8)
k = 500
U, s, V = RandomisedSVD.svd(trainX, k)
print(s)
print("All done")
def profileSvd2(self):
dataDir = PathDefaults.getDataDir() + "erasm/contacts/"
trainFilename = dataDir + "contacts_train"
trainX = scipy.io.mmread(trainFilename)
trainX = scipy.sparse.csc_matrix(trainX, dtype=numpy.int8)
k = 500
U, s, V = RandomisedSVD.svd(trainX, k)
print(s)
print("All done")
def mendeley2(minNnzRows=10, minNnzCols=2, quantile=90, dataset="Document"):
authorAuthorFileName = PathDefaults.getDataDir() + "reference/author" + dataset + "Matrix.mtx"
logging.debug("Reading file: " + authorAuthorFileName)
X = sppy.io.mmread(authorAuthorFileName, storagetype="row")
logging.debug("Raw non-zero elements: " + str(X.nnz) + " shape: " + str(X.shape))
X = SparseUtils.pruneMatrixRowAndCols(X, minNnzRows, minNnzCols)
logging.debug("Read file: " + authorAuthorFileName)
logging.debug("Non-zero elements: " + str(X.nnz) + " shape: " + str(X.shape))
return X
def testPredict2(self):
#Test on Gauss2D dataset
dataDir = PathDefaults.getDataDir()
fileName = dataDir + "Gauss2D_learn.csv"
XY = numpy.loadtxt(fileName,
skiprows=1,
usecols=(1, 2, 3),
delimiter=",")
X = XY[:, 0:2]
y = XY[:, 2] * 2 - 1
fileName = dataDir + "Gauss2D_test.csv"
testXY = numpy.loadtxt(fileName,
skiprows=1,
usecols=(1, 2, 3),
delimiter=",")
testX = testXY[:, 0:2]
testY = testXY[:, 2] * 2 - 1
#X = Standardiser().standardiseArray(X)
#testX = Standardiser().standardiseArray(testX)
maxDepths = range(3, 10)
trainAucs = numpy.array([
0.7194734, 0.7284824, 0.7332185, 0.7348198, 0.7366152, 0.7367508,
0.7367508, 0.7367508
])
testAucs = numpy.array([
0.6789078, 0.6844632, 0.6867918, 0.6873420, 0.6874820, 0.6874400,
0.6874400, 0.6874400
])
i = 0
#The results are approximately the same, but not exactly
for maxDepth in maxDepths:
treeRank = TreeRank(DecisionTree)
treeRank.setMaxDepth(maxDepth)
treeRank.learnModel(X, y)
trainScores = treeRank.predict(X)
testScores = treeRank.predict(testX)
#print(Evaluator.auc(trainScores, y), Evaluator.auc(testScores, testY))
#self.assertAlmostEquals(Evaluator.auc(trainScores, y), trainAucs[i], 2)
#self.assertAlmostEquals(Evaluator.auc(testScores, testY), testAucs[i], 1)
i += 1
#Compare tree to that of R version
tree = treeRank.getTree()
def profilePropackSvd(self):
dataDir = PathDefaults.getDataDir() + "erasm/contacts/"
trainFilename = dataDir + "contacts_train"
trainX = scipy.io.mmread(trainFilename)
trainX = scipy.sparse.csc_matrix(trainX, dtype=numpy.int8)
k = 500
U, s, V = SparseUtils.svdPropack(trainX, k, kmax=k * 5)
print(s)
#Memory consumption is dependent on kmax
print("All done")
def profilePropackSvd(self):
dataDir = PathDefaults.getDataDir() + "erasm/contacts/"
trainFilename = dataDir + "contacts_train"
trainX = scipy.io.mmread(trainFilename)
trainX = scipy.sparse.csc_matrix(trainX, dtype=numpy.int8)
k = 500
U, s, V = SparseUtils.svdPropack(trainX, k, kmax=k * 5)
print(s)
# Memory consumption is dependent on kmax
print("All done")
def testBayesError(self):
dataDir = PathDefaults.getDataDir() + "modelPenalisation/toy/"
data = numpy.load(dataDir + "toyData.npz")
gridPoints, X, y, pdfX, pdfY1X, pdfYminus1X = data["arr_0"], data["arr_1"], data["arr_2"], data["arr_3"], data["arr_4"], data["arr_5"]
sampleSize = 100
trainX, trainY = X[0:sampleSize, :], y[0:sampleSize]
testX, testY = X[sampleSize:, :], y[sampleSize:]
#We form a test set from the grid points
gridX = numpy.zeros((gridPoints.shape[0]**2, 2))
for m in range(gridPoints.shape[0]):
gridX[m*gridPoints.shape[0]:(m+1)*gridPoints.shape[0], 0] = gridPoints
gridX[m*gridPoints.shape[0]:(m+1)*gridPoints.shape[0], 1] = gridPoints[m]
Cs = 2**numpy.arange(-5, 5, dtype=numpy.float)
gammas = 2**numpy.arange(-5, 5, dtype=numpy.float)
bestError = 1
for C in Cs:
for gamma in gammas:
svm = LibSVM(kernel="gaussian", C=C, kernelParam=gamma)
svm.learnModel(trainX, trainY)
predY, decisionsY = svm.predict(gridX, True)
decisionGrid = numpy.reshape(decisionsY, (gridPoints.shape[0], gridPoints.shape[0]), order="F")
error = ModelSelectUtils.bayesError(gridPoints, decisionGrid, pdfX, pdfY1X, pdfYminus1X)
predY, decisionsY = svm.predict(testX, True)
error2 = Evaluator.binaryError(testY, predY)
print(error, error2)
if error < bestError:
error = bestError
bestC = C
bestGamma = gamma
svm = LibSVM(kernel="gaussian", C=bestC, kernelParam=bestGamma)
svm.learnModel(trainX, trainY)
predY, decisionsY = svm.predict(gridX, True)
plt.figure(0)
plt.contourf(gridPoints, gridPoints, decisionGrid, 100)
plt.colorbar()
plt.figure(1)
plt.scatter(X[y==1, 0], X[y==1, 1], c='r' ,label="-1")
plt.scatter(X[y==-1, 0], X[y==-1, 1], c='b',label="+1")
plt.legend()
plt.show()
def movieLens(minNnzRows=10, minNnzCols=2, quantile=90):
matrixFileName = PathDefaults.getDataDir() + "movielens/ml-100k/u.data"
data = numpy.loadtxt(matrixFileName)
X = sppy.csarray((numpy.max(data[:, 0]), numpy.max(data[:, 1])), storagetype="row", dtype=numpy.int)
X.put(numpy.array(data[:, 2]>3, numpy.int), numpy.array(data[:, 0]-1, numpy.int32), numpy.array(data[:, 1]-1, numpy.int32), init=True)
#X = SparseUtilsCython.centerRowsCsarray(X)
#X[X.nonzero()] = X.values()>0
X.prune()
#maxNnz = numpy.percentile(X.sum(0), quantile)
#X = SparseUtils.pruneMatrixCols(X, minNnz=minNnzCols, maxNnz=maxNnz)
X = SparseUtils.pruneMatrixRowAndCols(X, minNnzRows, minNnzCols)
logging.debug("Read file: " + matrixFileName)
logging.debug("Non zero elements: " + str(X.nnz) + " shape: " + str(X.shape))
return X
def profileArpackSvd(self):
dataDir = PathDefaults.getDataDir() + "erasm/contacts/"
trainFilename = dataDir + "contacts_train"
trainX = scipy.io.mmread(trainFilename)
trainX = scipy.sparse.csc_matrix(trainX, dtype=numpy.float32)
print(trainX.dtype.char, trainX.dtype)
k = 500
U, s, V = SparseUtils.svdArpack(trainX, k, kmax=k * 5)
print(s)
# Memory consumption is dependent on kmax and less than PROPACK
print("All done")
def profileArpackSvd(self):
dataDir = PathDefaults.getDataDir() + "erasm/contacts/"
trainFilename = dataDir + "contacts_train"
trainX = scipy.io.mmread(trainFilename)
trainX = scipy.sparse.csc_matrix(trainX, dtype=numpy.float32)
print(trainX.dtype.char, trainX.dtype)
k = 500
U, s, V = SparseUtils.svdArpack(trainX, k, kmax=k * 5)
print(s)
#Memory consumption is dependent on kmax and less than PROPACK
print("All done")
def cluster():
k1 = 20 # numCluster to learn
k2 = 40 # numEigenVector kept
dir = PathDefaults.getDataDir() + "cluster/"
graphIterator = getBemolGraphIterator(dir)
#===========================================
# cluster
print("compute clusters")
clusterer = IterativeSpectralClustering(k1, k2)
clustersList = clusterer.clusterFromIterator(graphIterator, True)
for i in range(len(clustersList)):
clusters = clustersList[i]
print(clusters)
def testRunSimulation(self):
egoFileName = PathDefaults.getDataDir() + "infoDiffusion/EgoData.csv"
alterFileName = PathDefaults.getDataDir() + "infoDiffusion/AlterData.csv"
numVertices = 1000
infoProb = 0.1
p = 0.1
neighbours = 10
generator = SmallWorldGenerator(p, neighbours)
graph = SparseGraph(VertexList(numVertices, 0))
graph = generator.generate(graph)
CVal = 1.0
kernel = "linear"
kernelParamVal = 0.0
errorCost = 0.5
folds = 6
sampleSize = 1000
maxIterations = 5
self.svmEgoSimulator.trainClassifier(CVal, kernel, kernelParamVal, errorCost, sampleSize)
self.svmEgoSimulator.generateRandomGraph(egoFileName, alterFileName, infoProb, graph)
self.svmEgoSimulator.runSimulation(maxIterations)
def readHIVGraph(self, undirected=True, indicators=True):
"""
We will use pacdate5389.csv which contains the data of infection. The undirected
parameter instructs whether to create an undirected graph. If indicators
is true then categorical varibles are turned into collections of indicator
ones.
"""
converters = {1: CsvConverters.dateConv, 3:CsvConverters.dateConv, 5:CsvConverters.detectionConv, 6:CsvConverters.provConv, 8: CsvConverters.dateConv }
converters[9] = CsvConverters.genderConv
converters[10] = CsvConverters.orientConv
converters[11] = CsvConverters.numContactsConv
converters[12] = CsvConverters.numContactsConv
converters[13] = CsvConverters.numContactsConv
def nanProcessor(X):
means = numpy.zeros(X.shape[1])
for i in range(X.shape[1]):
if numpy.sum(numpy.isnan(X[:, i])) > 0:
logging.info("No. missing values in " + str(i) + "th column: " + str(numpy.sum(numpy.isnan(X[:, i]))))
means[i] = numpy.mean(X[:, i][numpy.isnan(X[:, i]) == False])
X[numpy.isnan(X[:, i]), i] = means[i]
return X
idIndex = 0
featureIndices = converters.keys()
multiGraphCsvReader = MultiGraphCsvReader(idIndex, featureIndices, converters, nanProcessor)
dataDir = PathDefaults.getDataDir()
vertexFileName = dataDir + "HIV/alldata.csv"
edgeFileNames = [dataDir + "HIV/grafdet2.csv", dataDir + "HIV/infect2.csv"]
sparseMultiGraph = multiGraphCsvReader.readGraph(vertexFileName, edgeFileNames, undirected, delimiter="\t")
#For learning purposes we will convert categorial variables into a set of
#indicator features
if indicators:
logging.info("Converting categorial features")
vList = sparseMultiGraph.getVertexList()
V = vList.getVertices(list(range(vList.getNumVertices())))
catInds = [2, 3]
generator = FeatureGenerator()
V = generator.categoricalToIndicator(V, catInds)
vList.replaceVertices(V)
logging.info("Created " + str(sparseMultiGraph.getNumVertices()) + " examples with " + str(sparseMultiGraph.getVertexList().getNumFeatures()) + " features")
return sparseMultiGraph
def mendeley(minNnzRows=10, minNnzCols=2, quantile=90, dataset="Doc", sigma=0.05, indicator=True):
authorAuthorFileName = PathDefaults.getDataDir() + "reference/authorAuthor"+ dataset + "Matrix_sigma=" + str(sigma) + ".mtx"
logging.debug("Reading file: " + authorAuthorFileName)
X = sppy.io.mmread(authorAuthorFileName, storagetype="row")
if indicator:
X[X.nonzero()] = 1
X.prune()
logging.debug("Raw non-zero elements: " + str(X.nnz) + " shape: " + str(X.shape))
X = SparseUtils.pruneMatrixRowAndCols(X, minNnzRows, minNnzCols)
logging.debug("Read file: " + authorAuthorFileName)
logging.debug("Non-zero elements: " + str(X.nnz) + " shape: " + str(X.shape))
return X
def saveResults(orderedItems, scores, dataset, similaritiesFileName, contactsFilename, interestsFilename, minScore, minContacts, minAcceptableSims):
#Now let's write out the similarities file
logging.debug("Generating recommendations for authors")
authorIndexerFilename = PathDefaults.getDataDir() + "reference/authorIndexer" + dataset + ".pkl"
authorIndexerFile = open(authorIndexerFilename)
authorIndexer = pickle.load(authorIndexerFile)
authorIndexerFile.close()
logging.debug("Loaded author indexer")
reverseIndexer = authorIndexer.reverseTranslateDict()
outputFile = open(similaritiesFileName, "w")
csvFile = csv.writer(outputFile, delimiter='\t')
for i in range(orderedItems.shape[0]):
if i % 10000 == 0 :
logging.debug("Iteration: " + str(i))
row = [reverseIndexer[i]]
#Check author isn't recommended him/herself
for j in range(orderedItems.shape[1]):
if orderedItems[i, j] != i:
row = [reverseIndexer[i], reverseIndexer[orderedItems[i, j]], scores[i, j]]
csvFile.writerow(row)
outputFile.close()
logging.debug("Wrote recommendations to " + similaritiesFileName)
#Figure out how good the recommendations are on the contacts network
contacts = read_contacts(contactsFilename)
research_interests = read_interests(interestsFilename)
sims = read_similar_authors(similaritiesFileName, minScore)
logging.debug('Evaluating against contacts...')
meanStatsContacts = evaluate_against_contacts(sims, contacts, minContacts)
logging.debug('Evaluating against research interests...')
meanStatsInterests = evaluate_against_research_interests(sims, research_interests, minAcceptableSims)
logging.debug("Mean stats on contacts: " + str(meanStatsContacts))
logging.debug("Mean stats on interests:" + str(meanStatsInterests))
return meanStatsContacts, meanStatsInterests
def testPredict2(self):
#Test on Gauss2D dataset
dataDir = PathDefaults.getDataDir()
fileName = dataDir + "Gauss2D_learn.csv"
XY = numpy.loadtxt(fileName, skiprows=1, usecols=(1,2,3), delimiter=",")
X = XY[:, 0:2]
y = XY[:, 2]
y = y*2 - 1
fileName = dataDir + "Gauss2D_test.csv"
testXY = numpy.loadtxt(fileName, skiprows=1, usecols=(1,2,3), delimiter=",")
testX = testXY[:, 0:2]
testY = testXY[:, 2]
testY = testY*2-1
X = Standardiser().standardiseArray(X)
testX = Standardiser().standardiseArray(testX)
numTrees = 5
minSplit = 50
maxDepths = range(3, 10)
trainAucs = numpy.array([0.7252582, 0.7323278, 0.7350289, 0.7372529, 0.7399985, 0.7382176, 0.7395104, 0.7386347])
testAucs = numpy.array([0.6806122, 0.6851614, 0.6886183, 0.6904147, 0.6897266, 0.6874600, 0.6875980, 0.6878801])
i = 0
#The results are approximately the same, but not exactly
for maxDepth in maxDepths:
treeRankForest = TreeRankForest(self.leafRanklearner)
treeRankForest.setMaxDepth(maxDepth)
treeRankForest.setMinSplit(minSplit)
treeRankForest.setNumTrees(numTrees)
treeRankForest.learnModel(X, y)
trainScores = treeRankForest.predict(X)
testScores = treeRankForest.predict(testX)
print(Evaluator.auc(trainScores, y), Evaluator.auc(testScores, testY))
self.assertAlmostEquals(Evaluator.auc(trainScores, y), trainAucs[i], 1)
self.assertAlmostEquals(Evaluator.auc(testScores, testY), testAucs[i], 1)
i+=1
def testPredict2(self):
#We play around with parameters to maximise AUC on the IGF1_0-Haar data
dataDir = PathDefaults.getDataDir()
fileName = dataDir + "IGF1_0-Haar.npy"
XY = numpy.load(fileName)
X = XY[:, 0:XY.shape[1]-1]
y = XY[:, XY.shape[1]-1].ravel()
weight = numpy.bincount(numpy.array(y, numpy.int))[0]/float(y.shape[0])
#weight = 0.5
#weight = 0.9
folds = 3
decisionTree = DecisionTree()
decisionTree.setWeight(weight)
decisionTree.setMaxDepth(50)
#decisionTree.setMinSplit(100)
mean, var = decisionTree.evaluateCv(X, y, folds, Evaluator.auc)
logging.debug("AUC = " + str(mean))
logging.debug("Var = " + str(var))
def testPredict2(self):
#We play around with parameters to maximise AUC on the IGF1_0-Haar data
dataDir = PathDefaults.getDataDir()
fileName = dataDir + "IGF1_0-Haar.npy"
XY = numpy.load(fileName)
X = XY[:, 0:XY.shape[1]-1]
y = XY[:, XY.shape[1]-1].ravel()
weight = numpy.bincount(numpy.array(y, numpy.int))[0]/float(y.shape[0])
#weight = 0.5
#weight = 0.9
folds = 3
randomForest = RandomForest()
randomForest.setWeight(weight)
randomForest.setMaxDepth(50)
#randomForest.setMinSplit(100)
mean, var = randomForest.evaluateCv(X, y, folds, Evaluator.auc)
logging.debug("AUC = " + str(mean))
logging.debug("Var = " + str(var))
def main():
import sys
logging.basicConfig(stream=sys.stdout, level=logging.DEBUG)
matrixFileName = PathDefaults.getDataDir() + "movielens/ml-100k/u.data"
data = numpy.loadtxt(matrixFileName)
X = sppy.csarray((numpy.max(data[:, 0]), numpy.max(data[:, 1])),
storagetype="row")
X[data[:, 0] - 1, data[:, 1] - 1] = numpy.array(data[:, 2] > 3, numpy.int)
logging.debug("Read file: " + matrixFileName)
logging.debug("Shape of data: " + str(X.shape))
logging.debug("Number of non zeros " + str(X.nnz))
u = 0.1
w = 1 - u
(m, n) = X.shape
validationSize = 5
trainTestXs = Sampling.shuffleSplitRows(X, 1, validationSize)
trainX, testX = trainTestXs[0]
trainX = trainX.toScipyCsr()
learner = CLiMF(k=20, lmbda=0.001, gamma=0.0001)
learner.learnModel(trainX)
logging.debug('process id:' + str(os.getpid()))
self.saveResults(self.leafRankGenerators, True)
def run2(self):
logging.debug('module name:' + __name__)
logging.debug('parent process:' + str(os.getppid()))
logging.debug('process id:' + str(os.getpid()))
self.saveResults(self.funcLeafRankGenerators, False)
logging.basicConfig(stream=sys.stdout, level=logging.DEBUG)
logging.debug("Running from machine " + str(gethostname()))
numpy.random.seed(21)
dataDir = PathDefaults.getDataDir() + "metabolomic/"
X, X2, Xs, XOpls, YList, ages, df = MetabolomicsUtils.loadData()
waveletStr = 'db4'
mode = "cpd"
level = 10
XwDb4 = MetabolomicsUtils.getWaveletFeatures(X, 'db4', level, mode)
XwDb8 = MetabolomicsUtils.getWaveletFeatures(X, 'db8', level, mode)
XwHaar = MetabolomicsUtils.getWaveletFeatures(X, 'haar', level, mode)
dataList = []
dataList.extend([(XwDb4, "db4")])
lock = multiprocessing.Lock()
numpy.random.seed(datetime.datetime.now().microsecond)