def load_data(dirFolder, testRatio, featureKeepRatio=1.0):
classes = sorted(os.listdir(dirFolder))
vocabulary = set()
cMap = {i: classes[i] for i in range(len(classes))}
allDocs = []
for i, dclass in enumerate(classes):
documents = os.listdir(os.path.join(dirFolder, dclass))
np.random.shuffle(documents)
splitPoint = int(testRatio * len(documents))
trainDocs, testDocs = documents[splitPoint:], documents[:splitPoint]
allDocs.append([trainDocs, testDocs])
# Process documents for vocabulary selection
tfidf = TfIdf(os.path.join(dirFolder, dclass), trainDocs,
featureKeepRatio)
selectedWords = tfidf.selectWords()
vocabulary = vocabulary | selectedWords
# Featurize data according to above vocabulary
vocabulary = list(vocabulary)
X_train, Y_train = [], []
X_test, Y_test = [], []
for i, dclass in enumerate(classes):
for j in range(len(allDocs[i])):
for doc in allDocs[i][j]:
processedFile = preprocess.readFile(
os.path.join(os.path.join(dirFolder, dclass), doc))
words = Counter(processedFile)
features = [words.get(w, 0) for w in vocabulary]
if j == 0:
X_train.append(features)
Y_train.append(i)
else:
X_test.append(features)
Y_test.append(i)
return (np.stack(X_train), Y_train), (np.stack(X_test), Y_test)
def evaluateMEMM(train, test):
"""
a function that returns the accuracy of the MEMM model using a given
validation set.
"""
model = MEMM(train)
lines = preprocess.readFile(test)
lineNum = 1
correct = 0
total = 0
for line in lines:
if (lineNum % 3) == 1:
sentence = line
elif (lineNum % 3) == 2:
tags = model.assignTags(sentence, line)
addBio(tags)
elif (lineNum % 3) == 0:
answers = line.strip().split()
#Following line just for testing
#assert len(tags) == len(answers)
for i in range(len(tags)):
if tags[i] == answers[i]:
correct += 1
total += 1
lineNum += 1
return correct, total
def load_data_word2vec(dirFolder, featureKeepRatio=1.0):
model = gensim.models.keyedvectors.KeyedVectors.load_word2vec_format('./GoogleNews-vectors-negative300.bin', binary=True)
classes = sorted(os.listdir(dirFolder))
vocabulary = set()
cMap = {i:classes[i] for i in range(len(classes))}
allDocs = []
for i, dclass in enumerate(classes):
documents = os.listdir(os.path.join(dirFolder, dclass))
np.random.shuffle(documents)
allDocs.append(documents)
# Process documents for vocabulary selection
tfidf = TfIdf(os.path.join(dirFolder, dclass), documents, featureKeepRatio)
selectedWords = tfidf.selectWords()
vocabulary = vocabulary | selectedWords
# Featurize data according to above vocabulary
vocabulary = list(vocabulary)
X = []
def getIt(dablu):
try:
return model[dablu]
except:
return np.zeros((300,))
for i, dclass in enumerate(classes):
for doc in allDocs[i]:
processedFile = preprocess.readFile(os.path.join(os.path.join(dirFolder, dclass), doc))
words = list(set(processedFile))
features = [ getIt(w) for w in vocabulary]
X.append(features)
return np.stack(X)
def scoreBaseLine(self, filepath):
"""
A function that grades the models accuracy using a given test
file specified by [filepath].
"""
lines = preprocess.readFile(filepath)
lineNum = 1
correct = 0
total = 0
for line in lines:
if (lineNum % 3) == 1:
tokens = line.strip().split()
tags = self.assignTags(tokens)
elif (lineNum % 3) == 0:
answers = line.strip().split()
#Following section just for testing
if len(tags) != len(answers):
print("Lengths don't match!\n")
print(tags)
print(answers)
break
for i in range(len(tags)):
if tags[i] == answers[i]:
correct += 1
total += 1
lineNum += 1
return correct, total
def MEMMClassify(train, test):
"""
The function returns the tagging prediction by the MEMM system as
a dictionary.
"""
model = MEMM.MEMM(train)
lines = preprocess.readFile(test)
prediction = {'PER': [], 'LOC': [], 'ORG': [], 'MISC': []}
lineNum = 1
for line in lines:
if (lineNum % 3) == 1:
#Line with Tokens
sentence = line
elif (lineNum % 3) == 2:
tags = model.assignTags(sentence, line)
else:
#Line with indexes
indexes = line.strip().split()
preClass = None
firstIdx = None
lastIdx = None
NEcontinues = False
for i in range(len(tags)):
tag = tags[i]
if tag == 'O':
if NEcontinues:
#Previous tag ends
prediction[preClass].append(firstIdx + '-' + lastIdx)
preClass = None
firstIdx = None
lastIdx = None
NEcontinues = False
else:
if NEcontinues:
if tag != preClass:
#Previous tag ends, new Tag begins
prediction[preClass].append(firstIdx + '-' +
lastIdx)
preClass = tag
firstIdx = indexes[i]
lastIdx = indexes[i]
else:
#Previous tag continues
lastIdx = indexes[i]
else:
#New tag begins
preClass = tag
firstIdx = indexes[i]
lastIdx = indexes[i]
NEcontinues = True
lineNum += 1
return prediction
def construct_index(self, directory):
documents = []
documentNames = []
for root, dirs, files in os.walk(directory):
for file in tqdm(files):
dataRecovered = preprocess.readFile(os.path.join(root, file))
if dataRecovered:
documentNames.append(os.path.join(root, file))
documents.append(dataRecovered)
self.allDocuments = set(documentNames)
self.construct(documents, documentNames)
def preprocessData(self):
for doc in self.docs:
processedFile = preprocess.readFile(os.path.join(
self.baseDir, doc))
words = Counter(processedFile)
self.vocabulary = list(set(self.vocabulary) | set(words.keys()))
self.documents[doc] = words
for uniqueWord in words.keys():
self.wordFrequencies[
uniqueWord] = 1 + self.wordFrequencies.get(uniqueWord, 0)
self.N += 1
def baselineClassify(train, test):
"""
The function returns the tagging prediction by the baseline system as
a dictionary.
"""
model = baseline.Baseline(train)
lines = preprocess.readFile(test)
prediction = {'PER': [], 'LOC': [], 'ORG': [], 'MISC': []}
lineNum = 1
for line in lines:
if (lineNum % 3) == 1:
#Line with Tokens
tokens = line.strip().split()
tags = BLdebug(model.assignTags(tokens))
elif (lineNum % 3) == 0:
#Line with indexes
indexes = line.strip().split()
preClass = None
firstIdx = None
lastIdx = None
NEcontinues = False
for i in range(len(tags)):
bioTag = tags[i][:1]
if bioTag == 'B':
if NEcontinues:
#Previous tag ends
prediction[preClass].append(firstIdx + '-' + lastIdx)
preClass = tags[i][2:]
firstIdx = indexes[i]
lastIdx = indexes[i]
NEcontinues = True
elif bioTag == 'I':
curClass = tags[i][2:]
assert NEcontinues and curClass == preClass
lastIdx = indexes[i]
else: # bioTag == 'O'
if NEcontinues:
prediction[preClass].append(firstIdx + '-' + lastIdx)
preClass = None
firstIdx = None
lastIdx = None
NEcontinues = False
lineNum += 1
return prediction
def buildDB():
# clean the data file at private/filename
noisy_file = os.path.join(request.folder, 'private','027__BTECH__6TH SEM.txt')
clean_file = os.path.join(request.folder, 'private','cleanFile.txt')
preprocess.cleanData(noisy_file, clean_file)
# extract college information
lines = preprocess.readFile(clean_file)
colleges = extract.extract_data(lines)
#insert into table colleges
for name in colleges.keys():
db.colleges.insert(name=name)
# insert into table students
for name in colleges.keys():
for student in colleges[name].students:
credits = (4,4,4,4,4,4,1,1,1,1,1)
total_credits = 0
for i in xrange(len(credits)):
total_credits = total_credits + credits[i]
percentage = (credits[0]*int(student.marks[0]) + credits[1]*int(student.marks[1]) + credits[2]*int(student.marks[2]) +
credits[3]*int(student.marks[3]) + credits[4]*int(student.marks[4]) + credits[5]*int(student.marks[5]) +
credits[6]*int(student.marks[6]) + credits[7]*int(student.marks[7]) + credits[8]*int(student.marks[8]) +
credits[9]*int(student.marks[9]) + credits[10]*int(student.marks[10]))
percentage = (percentage * 1.0) / total_credits
if percentage < 50.0:
continue
collegeid = db(db.colleges.name == name).select()[0]['id']
db.students.insert(colleges_id = collegeid, rollNo = student.rollNo[1:], name = student.name,
subj1 = int(student.marks[0]), subj2 = int(student.marks[1]), subj3 = int(student.marks[2]),
subj4 = int(student.marks[3]), subj5 = int(student.marks[4]), subj6 = int(student.marks[5]),
subj7 = int(student.marks[6]), subj8 = int(student.marks[7]), subj9 = int(student.marks[8]),
subj10 = int(student.marks[9]), subj11 = int(student.marks[10]), percentage = percentage)
return 'db built'
def load_data(dirFolder, featureKeepRatio=1.0):
classes = sorted(os.listdir(dirFolder))
vocabulary = set()
cMap = {i:classes[i] for i in range(len(classes))}
allDocs = []
for i, dclass in enumerate(classes):
documents = os.listdir(os.path.join(dirFolder, dclass))
np.random.shuffle(documents)
allDocs.append(documents)
# Process documents for vocabulary selection
tfidf = TfIdf(os.path.join(dirFolder, dclass), documents, featureKeepRatio)
selectedWords = tfidf.selectWords()
vocabulary = vocabulary | selectedWords
# Featurize data according to above vocabulary
vocabulary = list(vocabulary)
X = []
for i, dclass in enumerate(classes):
for doc in allDocs[i]:
processedFile = preprocess.readFile(os.path.join(os.path.join(dirFolder, dclass), doc))
words = Counter(processedFile)
features = [ words.get(w, 0) for w in vocabulary]
X.append(features)
return np.stack(X)
import preprocess as pp
import decisionTree as dt
import numpy as np
import random
random.seed()
file = 'data.csv'
rows = pp.readFile(file=file)
X_train, Y_train, X_test, Y_test = pp.splitData(rows)
tree = dt.DecisionTree(X_train, Y_train, 9)
tree.train()
Y_pred, error = tree.test(X_test, Y_test)
print("error in decision tree testing =", error)
for i in range(len(Y_test)):
print(Y_pred[i], Y_test[i])
print("vignesh's prediction")
Xmale = [['3', '9.6', 'M', '28.3', '7', '1']]
Xfemale = [['3', '9.6', 'F', '28.3', '7', '1']]
Y = [10]
yp, e = tree.test(Xmale, Y)
print("vignesh's grade", yp[0])
yp, e = tree.test(Xfemale, Y)
print("chhakka vignesh's grade", yp[0])
import preprocess, deal, logistic, submission
import numpy as np
if __name__ == "__main__":
path = "../train"
preprocess.readFile(path)
dict_train = preprocess.getDict(path)
# print(dict)
# 相似度dict，键是两个文件名，值是[特征向量，是否clone]
similarityDict_train = deal.getSimilarity(dict_train)
# print(similarityDict)
# # 获得所有clone的余弦相似度
# cloneSimilarityList=deal.getCloneSimilarity(similarityDict)
# # print(cloneSimilarityList)
# # 获得所有非clone的余弦相似度
# notCloneSimilarityList=deal.getNotCloneSimilarity(similarityDict)
# # print(notCloneSimilarityList)
# 获得训练集的x和y
x_train, y_train = deal.getArray(similarityDict_train)
path = "../test"
preprocess.readFile(path)
dict_test = preprocess.getDict(path)
# print(dict)
# 测试集
# 相似度dict，键是两个文件名，值是[特征向量]