def __init__(self,
config_dict,
config_account,
account_DAO,
C=3,
K=1,
L=-1,
N=0):
self.trainingData = [] # training data
self.testData = [] # testData
self.relation = []
self.measure = []
self.config_dict = config_dict
self.C = C
self.K = K
self.L = L
self.N = N
self.accountDAO = account_DAO
if config_account.contains('evaluation.setup'):
all_evaluation = LineConfig(config_account['evaluation.setup'])
if all_evaluation.contains('--account'):
self.training_user_item = account_DAO.training_user_item
self.training_account_item = account_DAO.training_account_item
self.relation = account_DAO.relation
self.test_user_item = account_DAO.test_user_item
else:
raise Exception('Evaluation is not well configured!')
print('preprocessing...')
def execute(self, config, max_sample=1000):
# import the algorithm module
importStr = 'from algorithm.ranking.' + config[
'recommender'] + ' import ' + config['recommender']
exec(importStr)
algo_evaluation = LineConfig(config['evaluation.setup'])
if algo_evaluation.contains('-ul') and eval(
algo_evaluation['-ul']) > 0:
training_data = 'self.training_user_item'
social_info = 'relation=self.relation'
else:
training_data = 'self.training_account_item'
social_info = ''
if config['recommender'].startswith('ABPR'):
recommender = config['recommender'] + '(config, {}, self.test_user_item, {}, C={}, N={})'. \
format(training_data, social_info, self.C, self.N)
else:
recommender = config['recommender'] + '(config, {}, self.test_user_item, {})'.\
format(training_data, social_info)
algorithum = eval(recommender)
algorithum.accountDAO = self.accountDAO
algorithum.evaluation_conf = algo_evaluation
algorithum.get_test_map(K=self.K, L=self.L)
algorithum.get_test_sample_data(max_sample=max_sample)
algorithum.execute()
def __init__(self, config):
self.config = config
self.ratingConfig = LineConfig(config['ratings.setup'])
self.evaluation = LineConfig(config['evaluation.setup'])
self.user = {} #used to store the order of users
self.item = {} #used to store the order of items
self.userMeans = {} #used to store the mean values of users's ratings
self.itemMeans = {} #used to store the mean values of items's ratings
self.triple = [] #training data
self.globalMean = 0
self.timestamp = {}
self.ratingMatrix = None
self.trainingMatrix = None
self.validationMatrix = None
self.testSet_u = None # used to store the test set by hierarchy user:[item,rating]
self.testSet_i = None # used to store the test set by hierarchy item:[user,rating]
self.rScale = [-9999999, 999999]
if self.evaluation.contains('-testSet'):
#specify testSet
self.trainingMatrix = self.__loadRatings(config['ratings'])
self.testSet_u, self.testSet_i = self.__loadRatings(
self.evaluation['-testSet'], True)
else: #cross validation and leave-one-out
self.ratingMatrix = self.__loadRatings(config['ratings'])
self.__computeItemMean()
self.__computeUserMean()
self.__globalAverage()
def __init__(self, config, trainingSet, testSet):
self.config = config
self.recordConfig = LineConfig(config['record.setup'])
self.evalConfig = LineConfig(config['evaluation.setup'])
self.name2id = defaultdict(dict)
self.id2name = defaultdict(dict)
self.artistListened = defaultdict(
dict) #key:aritst id, value:{user id1:count, user id2:count, ...}
self.albumListened = defaultdict(
dict) #key:album id, value:{user id1:count, user id2:count, ...}
self.trackListened = defaultdict(
dict) #key:track id, value:{user id1:count, user id2:count, ...}
self.artist2Album = defaultdict(
dict) #key:artist id, value:{album id1:1, album id2:1 ...}
self.album2Track = defaultdict(dict) #
self.artist2Track = defaultdict(dict) #
self.userRecord = defaultdict(
list) #user data in training set. form: {user:[record1,record2]}
self.testSet = defaultdict(
dict
) #user data in test set. form: {user:{recommenedObject1:1,recommendedObject:1}}
self.recordCount = 0
if self.evalConfig.contains('-byTime'):
trainingSet, testSet = self.splitDataByTime(trainingSet)
self.preprocess(trainingSet, testSet)
def readConfiguration(self):
super(IPF, self).readConfiguration()
self.rho = float(LineConfig(self.config['IPF'])['-rho'])
if self.rho<0 or self.rho>1:
self.rho=0.5
self.beta = float(LineConfig(self.config['IPF'])['-beta'])
self.eta = float(LineConfig(self.config['IPF'])['-eta'])
def loadRelationship(conf, filePath):
socialConfig = LineConfig(conf['social.setup'])
relation = []
print('loading social data...')
with open(filePath) as f:
relations = f.readlines()
# ignore the headline
if socialConfig.contains('-header'):
relations = relations[1:]
# order of the columns
order = socialConfig['-columns'].strip().split()
if len(order) <= 2:
print('The social file is not in a correct format.')
for lineNo, line in enumerate(relations):
items = split(' |,|\t', line.strip())
if len(order) < 2:
print(
'The social file is not in a correct format. Error: Line num %d'
% lineNo)
exit(-1)
userId1 = items[int(order[0])]
userId2 = items[int(order[1])]
if len(order) < 3:
weight = 1
else:
weight = float(items[int(order[2])])
relation.append([userId1, userId2, weight])
return relation
def __init__(self, conf, trainingSet=None, testSet=None, fold='[1]'):
self.config = conf
self.isSaveModel = False
self.isLoadModel = False
self.isOutput = True
self.data = Record(self.config, trainingSet, testSet)
self.foldInfo = fold
self.evalConfig = LineConfig(self.config['evaluation.setup'])
if self.evalConfig.contains('-target'):
self.recType = self.evalConfig['-target']
else:
self.recType = 'track'
if LineConfig(self.config['evaluation.setup']).contains('-cold'):
#evaluation on cold-start users
threshold = int(
LineConfig(self.config['evaluation.setup'])['-cold'])
removedUser = []
for user in self.data.testSet:
if self.data.userRecord.has_key(user) and len(
self.data.userRecord[user]) > threshold:
removedUser.append(user)
for user in removedUser:
del self.data.testSet[user]
if LineConfig(self.config['evaluation.setup']).contains('-sample'):
userList = self.data.testSet.keys()
removedUser = userList[:int(len(userList) * 0.9)]
for user in removedUser:
del self.data.testSet[user]
def __init__(self, conf, trainingSet, testSet, fold='[1]'):
self.config = conf
self.data = None
self.isSaveModel = False
self.ranking = None
self.isLoadModel = False
self.output = None
self.isOutput = True
self.data = RatingDAO(self.config, trainingSet, testSet)
self.foldInfo = fold
self.evalSettings = LineConfig(self.config['evaluation.setup'])
self.measure = []
self.record = []
if self.evalSettings.contains('-cold'):
#evaluation on cold-start users
threshold = int(self.evalSettings['-cold'])
removedUser = {}
for user in self.data.testSet_u:
if self.data.trainSet_u.has_key(user) and len(
self.data.trainSet_u[user]) > threshold:
removedUser[user] = 1
for user in removedUser:
del self.data.testSet_u[user]
testData = []
for item in self.data.testData:
if not removedUser.has_key(item[0]):
testData.append(item)
self.data.testData = testData
self.num_users, self.num_items, self.train_size = self.data.trainingSize(
)
def __init__(self, config, trainingSet, testSet):
self.config = config
self.recordConfig = LineConfig(config['record.setup'])
self.evalConfig = LineConfig(config['evaluation.setup'])
self.name2id = defaultdict(dict)
self.id2name = defaultdict(dict)
self.listened = {}
self.listened['artist'] = defaultdict(dict)
self.listened['track'] = defaultdict(dict)
self.listened['album'] = defaultdict(dict)
self.artist2Album = defaultdict(
dict) #key:artist id, value:{album id1:1, album id2:1 ...}
self.album2Track = defaultdict(dict) #
self.artist2Track = defaultdict(dict) #
self.userRecord = defaultdict(
list) #user data in training set. form: {user:[record1,record2]}
self.testSet = defaultdict(
dict
) #user data in test set. form: {user:{recommenedObject1:1,recommendedObject:1}}
self.recordCount = 0
self.columns = {}
labels = self.recordConfig['-columns'].split(',')
for col in labels:
label = col.split(':')
self.columns[label[0]] = int(label[1])
if self.evalConfig.contains('-byTime'):
trainingSet, testSet = self.splitDataByTime(trainingSet)
self.preprocess(trainingSet, testSet)
def __init__(self, conf):
self.config = conf
self.socialConfig = LineConfig(self.config['social.setup'])
self.user = {} #used to store the order of users
self.triple = []
self.followees = {}
self.followers = {}
self.trustMatrix = self.loadRelationship(self.config['social'])
def printAlgorConfig(self):
"show algorithm's configuration"
print 'Algorithm:',self.config['recommender']
print 'Training set:',abspath(self.config['record'])
if LineConfig(self.config['evaluation.setup']).contains('-testSet'):
print 'Test set:',abspath(LineConfig(self.config['evaluation.setup']).getOption('-testSet'))
#print 'Count of the users in training set: ',len()
self.data.printTrainingSize()
print '='*80
def printAlgorConfig(self):
"show algorithm's configuration"
print 'Algorithm:',self.config['recommender']
print 'Ratings dataSet:',abspath(self.config['ratings'])
if LineConfig(self.config['evaluation.setup']).contains('-testSet'):
print 'Test set:',abspath(LineConfig(self.config['evaluation.setup']).getOption('-testSet'))
#print 'Count of the users in training set: ',len()
print 'Training set size: (user count: %d, item count %d, record count: %d)' %(self.dao.trainingSize())
print 'Test set size: (user count: %d, item count %d, record count: %d)' %(self.dao.testSize())
print '='*80
def loadDataSet(conf, file, bTest=False, binarized=False, threshold=3.0):
trainingData = []
testData = []
ratingConfig = LineConfig(conf['ratings.setup'])
if not bTest:
print('loading training data...')
else:
print('loading test data...')
with open(file) as f:
ratings = f.readlines()
# ignore the headline
if ratingConfig.contains('-header'):
ratings = ratings[1:]
# order of the columns
order = ratingConfig['-columns'].strip().split()
delim = ' |,|\t'
if ratingConfig.contains('-delim'):
delim = ratingConfig['-delim']
for lineNo, line in enumerate(ratings):
items = split(delim, line.strip())
if not bTest and len(order) < 2:
print(
'The rating file is not in a correct format. Error: Line num %d'
% lineNo)
exit(-1)
try:
userId = items[int(order[0])]
itemId = items[int(order[1])]
if len(order) < 3:
rating = 1 #default value
else:
rating = items[int(order[2])]
if binarized:
if float(items[int(order[2])]) < threshold:
continue
else:
rating = 1
except ValueError:
print(
'Error! Have you added the option -header to the rating.setup?'
)
exit(-1)
if not bTest:
trainingData.append([userId, itemId, float(rating)])
else:
if binarized:
if rating == 1:
testData.append([userId, itemId, float(rating)])
else:
continue
testData.append([userId, itemId, float(rating)])
if not bTest:
return trainingData
else:
return testData
def __init__(self, config):
self.trainingData = [] # training data
self.testData = [] # testData
self.relation = []
self.measure = []
self.config = config
self.ratingConfig = LineConfig(config['ratings.setup'])
if self.config.contains('evaluation.setup'):
self.evaluation = LineConfig(config['evaluation.setup'])
binarized = False
bottom = 0
if self.evaluation.contains('-b'):
binarized = True
bottom = float(self.evaluation['-b'])
if self.evaluation.contains('-testSet'):
#specify testSet
self.trainingData = FileIO.loadDataSet(config,
config['ratings'],
binarized=binarized,
threshold=bottom)
self.testData = FileIO.loadDataSet(config,
self.evaluation['-testSet'],
bTest=True,
binarized=binarized,
threshold=bottom)
elif self.evaluation.contains('-ap'):
#auto partition
self.trainingData = FileIO.loadDataSet(config,
config['ratings'],
binarized=binarized,
threshold=bottom)
self.trainingData,self.testData = DataSplit.\
dataSplit(self.trainingData,test_ratio=float(self.evaluation['-ap']),binarized=binarized)
elif self.evaluation.contains('-cv'):
#cross validation
self.trainingData = FileIO.loadDataSet(config,
config['ratings'],
binarized=binarized,
threshold=bottom)
#self.trainingData,self.testData = DataSplit.crossValidation(self.trainingData,int(self.evaluation['-cv']))
else:
print('Evaluation is not well configured!')
exit(-1)
if config.contains('social'):
self.socialConfig = LineConfig(self.config['social.setup'])
self.relation = FileIO.loadRelationship(config,
self.config['social'])
print('preprocessing...')
def __init__(self,config):
self.trainingData = [] # training data
self.testData = [] # testData
self.measure = []
self.config =config
setup = LineConfig(config['record.setup'])
columns = {}
labels = setup['-columns'].split(',')
delim = ''
if setup.contains('-delim'):
delim=setup['-delim']
for col in labels:
label = col.split(':')
columns[label[0]] = int(label[1])
if self.config.contains('evaluation.setup'):
self.evaluation = LineConfig(config['evaluation.setup'])
binarized = False
bottom = 0
if self.evaluation.contains('-b'):
binarized = True
bottom = float(self.evaluation['-b'])
if self.evaluation.contains('-testSet'):
#specify testSet
self.trainingData = FileIO.loadDataSet(config['record'],columns=columns,binarized=binarized,threshold=bottom,delim=delim)
self.testData = FileIO.loadDataSet(self.evaluation['-testSet'],binarized=binarized,columns=columns,threshold=bottom,delim=delim)
elif self.evaluation.contains('-ap'):
#auto partition
self.trainingData = FileIO.loadDataSet(config['record'],columns=columns,binarized=binarized,threshold=bottom,delim=delim)
self.trainingData,self.testData = DataSplit.\
dataSplit(self.trainingData,test_ratio=float(self.evaluation['-ap']))
elif self.evaluation.contains('-byTime'):
self.trainingData = FileIO.loadDataSet(config['record'], columns=columns, binarized=binarized,threshold=bottom, delim=delim)
self.testData = []
elif self.evaluation.contains('-cv'):
#cross validation
self.trainingData = FileIO.loadDataSet(config['record'],columns=columns,binarized=binarized,threshold=bottom,delim=delim)
#self.trainingData,self.testData = DataSplit.crossValidation(self.trainingData,int(self.evaluation['-cv']))
else:
print 'Evaluation is not well configured!'
exit(-1)
# if config.contains('social'):
# self.socialConfig = LineConfig(self.config['social.setup'])
# self.relation = FileIO.loadRelationship(config,self.config['social'])
print 'preprocessing...'
def readConfiguration(self):
super(MEM, self).readConfiguration()
MEMConfig = LineConfig(self.config['MEM'])
self.epoch = int(MEMConfig['-epoch'])
self.winSize = int(MEMConfig['-winSize'])
self.negCount = int(MEMConfig['-negCount'])
self.beta = float(MEMConfig['-beta'])
def __init__(self,config,trainingSet, testSet):
self.config = config
self.ratingConfig = LineConfig(config['ratings.setup'])
self.user = {} #used to store the order of users in the training set
self.item = {} #used to store the order of items in the training set
self.id2user = {}
self.id2item = {}
self.all_Item = {}
self.all_User = {}
self.userMeans = {} #used to store the mean values of users's ratings
self.itemMeans = {} #used to store the mean values of items's ratings
self.globalMean = 0
self.timestamp = {}
self.trainSet_u = defaultdict(dict)
self.trainSet_i = defaultdict(dict)
self.testSet_u = defaultdict(dict) # used to store the test set by hierarchy user:[item,rating]
self.testSet_i = defaultdict(dict) # used to store the test set by hierarchy item:[user,rating]
self.rScale = []
self.trainingData = trainingSet[:]
self.testData = testSet[:]
self.__generateSet()
self.__computeItemMean()
self.__computeUserMean()
self.__globalAverage()
def execute(self):
exec ('from algorithm.rating.' + self.config['recommender'] + ' import ' + self.config['recommender'])
if self.evaluation.contains('-cv'):
i = 1
for train,test in DataSplit.crossValidation(self.trainingData,int(self.evaluation['-cv'])):
fold = '['+str(i)+']'
recommender = self.config['recommender']+ "(self.config,train,test,fold)"
measure = eval(recommender).execute()
self.measure.append(measure)
i+=1
res = []
for i in range(len(self.measure[0])):
measure = self.measure[0][i].split(':')[0]
total = 0
for j in range(len(self.measure)):
total += float(self.measure[j][i].split(':')[1])
res.append(measure+':'+str(total/len(self.measure))+'\n')
outDir = LineConfig(self.config['output.setup'])['-dir']
fileName = self.config['recommender'] +'@'+str(int(self.evaluation['-cv']))+'-fold-cv' + '.txt'
FileIO.writeFile(outDir,fileName,res)
else:
recommender = self.config['recommender']+'(self.config,self.trainingData,self.testData)'
eval(recommender).execute()
def __init__(self, config, trainingSet=None, testSet=None):
self.config = config
self.ratingConfig = LineConfig(config['ratings.setup'])
self.user = {} #used to store the order of users
self.item = {} #used to store the order of items
self.userMeans = {} #used to store the mean values of users's ratings
self.itemMeans = {} #used to store the mean values of items's ratings
self.trainingData = [] #training data
self.testData = [] #testData
self.globalMean = 0
self.timestamp = {}
self.trainingMatrix = None
self.validationMatrix = None
self.testSet_u = {
} # used to store the test set by hierarchy user:[item,rating]
self.testSet_i = {
} # used to store the test set by hierarchy item:[user,rating]
self.rScale = []
self.trainingData = trainingSet
self.testData = testSet
self.__generateSet()
self.__computeItemMean()
self.__computeUserMean()
self.__globalAverage()
def readConfiguration(self):
super(TSWalker, self).readConfiguration()
self.sim = self.config['similarity']
TW = LineConfig(self.config['TSWalker'])
self.k = int(TW['-k'])
self.v = float(TW['-v'])
self.tw = int(TW['-tw'])
def loadDataSet(conf, file, bTest=False):
trainingData = defaultdict(dict)
testData = defaultdict(dict)
ratingConfig = LineConfig(conf['ratings.setup'])
if not bTest:
print('loading training data...')
else:
print('loading test data...')
with open(file) as f:
ratings = f.readlines()
# ignore the headline
if ratingConfig.contains('-header'):
ratings = ratings[1:]
# order of the columns
order = ratingConfig['-columns'].strip().split()
for lineNo, line in enumerate(ratings):
items = split(' |,|\t', line.strip())
if not bTest and len(order) < 3:
print(
'The rating file is not in a correct format. Error: Line num %d'
% lineNo)
exit(-1)
try:
userId = items[int(order[0])]
itemId = items[int(order[1])]
if bTest and len(order) < 3:
rating = 1 #default value
else:
rating = items[int(order[2])]
except ValueError:
print(
'Error! Have you added the option -header to the rating.setup?'
)
exit(-1)
if not bTest:
trainingData[userId][itemId] = float(rating)
else:
testData[userId][itemId] = float(rating)
if not bTest:
return trainingData
else:
return testData
def execute(self):
#import the algorithm module
importStr = 'from algorithm.rating.' + self.config[
'recommender'] + ' import ' + self.config['recommender']
exec(importStr)
if self.evaluation.contains('-cv'):
k = int(self.evaluation['-cv'])
if k <= 1 or k > 10:
k = 3
#create the manager used to communication in multiprocess
manager = Manager()
m = manager.dict()
i = 1
tasks = []
for train, test in DataSplit.crossValidation(self.trainingData, k):
fold = '[' + str(i) + ']'
if self.config.contains('social'):
recommender = self.config[
'recommender'] + "(self.config,train,test,self.relation,fold)"
else:
recommender = self.config[
'recommender'] + "(self.config,train,test,fold)"
#create the process
p = Process(target=run, args=(m, eval(recommender), i))
tasks.append(p)
i += 1
#start the processes
for p in tasks:
p.start()
#wait until all processes are completed
for p in tasks:
p.join()
#compute the mean error of k-fold cross validation
self.measure = [dict(m)[i] for i in range(1, k + 1)]
res = []
for i in range(len(self.measure[0])):
measure = self.measure[0][i].split(':')[0]
total = 0
for j in range(k):
total += float(self.measure[j][i].split(':')[1])
res.append(measure + ':' + str(total / k) + '\n')
#output result
outDir = LineConfig(self.config['output.setup'])['-dir']
fileName = self.config['recommender'] + '@' + str(
k) + '-fold-cv' + '.txt'
FileIO.writeFile(outDir, fileName, res)
else:
if self.config.contains('social'):
recommender = self.config[
'recommender'] + '(self.config,self.trainingData,self.testData,self.relation)'
else:
recommender = self.config[
'recommender'] + '(self.config,self.trainingData,self.testData)'
eval(recommender).execute()
def __init__(self, config):
self.trainingData = [] # training data
self.testData = [] # testData
self.relation = []
self.measure = []
self.config = config
self.ratingConfig = LineConfig(config['ratings.setup'])
self.labels = FileIO.loadLabels(config['label'])
if self.config.contains('evaluation.setup'):
self.evaluation = LineConfig(config['evaluation.setup'])
if self.evaluation.contains('-testSet'):
#specify testSet
self.trainingData = FileIO.loadDataSet(config,
config['ratings'])
self.testData = FileIO.loadDataSet(config,
self.evaluation['-testSet'],
bTest=True)
elif self.evaluation.contains('-ap'):
#auto partition
self.trainingData = FileIO.loadDataSet(config,
config['ratings'])
self.trainingData,self.testData = DataSplit.\
dataSplit(self.trainingData,test_ratio=float(self.evaluation['-ap']))
elif self.evaluation.contains('-cv'):
#cross validation
self.trainingData = FileIO.loadDataSet(config,
config['ratings'])
#self.trainingData,self.testData = DataSplit.crossValidation(self.trainingData,int(self.evaluation['-cv']))
else:
print 'Evaluation is not well configured!'
exit(-1)
if config.contains('social'):
self.socialConfig = LineConfig(self.config['social.setup'])
self.relation = FileIO.loadRelationship(config,
self.config['social'])
print 'preprocessing...'
def __init__(self, config):
self.config = config
self.ratingConfig = LineConfig(config['ratings.setup'])
self.evaluation = LineConfig(config['evaluation.setup'])
self.user = {}
self.item = {}
self.timestamp = {}
self.ratingMatrix = None
self.trainingMatrix = None
self.validationMatrix = None
self.testSet_u = None # used to store the test set by hierarchy user:[item,rating]
self.testSet_i = None # used to store the test set by hierarchy item:[user,rating]
self.rScale = [-9999999, 999999]
if self.evaluation.contains('-testSet'):
#specify testSet
self.trainingMatrix = self.loadRatings(config['ratings'])
self.testSet_u, self.testSet_i = self.loadRatings(
self.evaluation['-testSet'], True)
else: #cross validation and leave-one-out
self.ratingMatrix = self.loadRatings(config['ratings'])
def __init__(self,config,trainingSet,testSet):
self.config = config
self.recordConfig = LineConfig(config['record.setup'])
self.evalConfig = LineConfig(config['evaluation.setup'])
self.name2id = defaultdict(dict)
self.id2name = defaultdict(dict)
self.listened = {}
self.listened['artist']=defaultdict(dict)
self.listened['track']=defaultdict(dict)
self.listened['album']=defaultdict(dict)
self.artist2Album = defaultdict(dict) #key:artist id, value:{album id1:1, album id2:1 ...}
self.album2Track = defaultdict(dict) #
self.artist2Track = defaultdict(dict) #
self.Track2artist = defaultdict(dict) #
self.Track2album = defaultdict(dict) #
self.userRecord = defaultdict(list) #user data in training set. form: {user:[record1,record2]}
self.trackRecord = defaultdict(list) # track data in training set. form: {track:[record1, record2]}
self.testSet = defaultdict(dict) #user data in test set. form: {user:{recommenedObject1:1,recommendedObject:1}}
self.recordCount = 0
self.columns = {}
self.globalMean = 0
self.userMeans = {} #used to store the mean values of users's listen tims
self.trackListen = {}
self.trainingData = trainingSet
self.computeUserMean()
self.globalAverage()
self.PopTrack = {}
labels = self.recordConfig['-columns'].split(',')
for col in labels:
label = col.split(':')
self.columns[label[0]] = int(label[1])
if self.evalConfig.contains('-byTime'):
trainingSet,testSet = self.splitDataByTime(trainingSet)
self.preprocess(trainingSet,testSet)
self.computePop(trainingSet)
def __init__(self, conf, trainingSet=None, testSet=None, fold='[1]'):
self.config = conf
self.isSaveModel = False
self.isLoadModel = False
self.isOutput = True
self.data = Record(self.config, trainingSet, testSet)
self.foldInfo = fold
self.evalConfig = LineConfig(self.config['evaluation.setup'])
if self.evalConfig.contains('-target'):
self.recType = self.evalConfig['-target']
else:
self.recType = 'track'
if LineConfig(self.config['evaluation.setup']).contains('-cold'):
#evaluation on cold-start users
threshold = int(
LineConfig(self.config['evaluation.setup'])['-cold'])
removedUser = []
removedTrack = defaultdict(list)
#for user in self.data.testSet:
# if user in self.data.userRecord and len(self.data.userRecord[user])>threshold:
# removedUser.append(user)
for user in self.data.testSet:
if user in self.data.userRecord:
for item in self.data.testSet[user]:
if len(self.data.trackRecord[item]) > threshold:
removedTrack[user].append(item)
for user in removedTrack:
for item in removedTrack[user]:
del self.data.testSet[user][item]
if len(self.data.testSet[user]) == 0:
del self.data.testSet[user]
#for user in removedUser:
# del self.data.testSet[user]
if LineConfig(self.config['evaluation.setup']).contains('-sample'):
userList = list(self.data.testSet.keys())
removedUser = userList[:int(len(userList) * 0.9)]
for user in removedUser:
del self.data.testSet[user]
def __init__(self,config):
self.trainingData = [] # training data
self.testData = [] # testData
self.measure = []
self.config =config
self.ratingConfig = LineConfig(config['ratings.setup'])
if self.config.contains('evaluation.setup'):
self.evaluation = LineConfig(config['evaluation.setup'])
if self.evaluation.contains('-testSet'):
#specify testSet
self.__loadDataSet(config['ratings'])
self.__loadDataSet(self.evaluation['-testSet'],bTest=True)
elif self.evaluation.contains('-ap'):
#auto partition
self.__loadDataSet(config['ratings'])
self.trainingData,self.testData = DataSplit.\
dataSplit(self.trainingData,test_ratio=float(self.evaluation['-ap']))
elif self.evaluation.contains('-cv'):
#cross validation
self.__loadDataSet(config['ratings'])
#self.trainingData,self.testData = DataSplit.crossValidation(self.trainingData,int(self.evaluation['-cv']))
else:
print 'Evaluation is not well configured!'
exit(-1)
def __init__(self,config,trainingSet, testSet):
self.config = config
self.ratingConfig = LineConfig(config['ratings.setup'])
self.user = {} #map user names to identifiers (id)
self.item = {} #map item names to identifiers (id)
self.id2user = {}
self.id2item = {}
self.userMeans = {} #Store the mean values of users's ratings
self.itemMeans = {} #Store the mean values of items's ratings
self.globalMean = 0
self.trainSet_u = defaultdict(dict)
self.trainSet_i = defaultdict(dict)
self.testSet_u = defaultdict(dict) # Store the test set in the form of [user][item]=rating
self.testSet_i = defaultdict(dict) # Store the test set in the form of [item][user]=rating]
self.rScale = [] #rating scale
self.trainingData = trainingSet[:]
self.testData = testSet[:]
self.__generateSet()
self.__computeItemMean()
self.__computeUserMean()
self.__globalAverage()
def __init__(self,config):
self.trainingData = [] # training data
self.testData = [] # testData
self.relation = []
self.measure = []
self.config =config
self.ratingConfig = LineConfig(config['ratings.setup'])
self.labels = FileIO.loadLabels(config['label'])
if self.config.contains('evaluation.setup'):
self.evaluation = LineConfig(config['evaluation.setup'])
if self.evaluation.contains('-testSet'):
#specify testSet
self.trainingData = FileIO.loadDataSet(config, config['ratings'])
self.testData = FileIO.loadDataSet(config, self.evaluation['-testSet'], bTest=True)
elif self.evaluation.contains('-ap'):
#auto partition
self.trainingData = FileIO.loadDataSet(config,config['ratings'])
self.trainingData,self.testData = DataSplit.\
dataSplit(self.trainingData,test_ratio=float(self.evaluation['-ap']))
elif self.evaluation.contains('-cv'):
#cross validation
self.trainingData = FileIO.loadDataSet(config, config['ratings'])
#self.trainingData,self.testData = DataSplit.crossValidation(self.trainingData,int(self.evaluation['-cv']))
else:
print 'Evaluation is not well configured!'
exit(-1)
if config.contains('social'):
self.socialConfig = LineConfig(self.config['social.setup'])
self.relation = FileIO.loadRelationship(config,self.config['social'])
print 'preprocessing...'
def readConfiguration(self):
super(FISM, self).readConfiguration()
self.rho = int(LineConfig(self.config['FISM'])['-rho'])
if self.rho < 1:
self.rho = 1
self.alpha = float(LineConfig(self.config['FISM'])['-alpha'])
def readConfiguration(self):
self.algorName = self.config['recommender']
self.output = LineConfig(self.config['output.setup'])
self.isOutput = self.output.isMainOn()
self.ranking = LineConfig(self.config['item.ranking'])
class SDLib(object):
def __init__(self,config):
self.trainingData = [] # training data
self.testData = [] # testData
self.relation = []
self.measure = []
self.config =config
self.ratingConfig = LineConfig(config['ratings.setup'])
self.labels = FileIO.loadLabels(config['label'])
if self.config.contains('evaluation.setup'):
self.evaluation = LineConfig(config['evaluation.setup'])
if self.evaluation.contains('-testSet'):
#specify testSet
self.trainingData = FileIO.loadDataSet(config, config['ratings'])
self.testData = FileIO.loadDataSet(config, self.evaluation['-testSet'], bTest=True)
elif self.evaluation.contains('-ap'):
#auto partition
self.trainingData = FileIO.loadDataSet(config,config['ratings'])
self.trainingData,self.testData = DataSplit.\
dataSplit(self.trainingData,test_ratio=float(self.evaluation['-ap']))
elif self.evaluation.contains('-cv'):
#cross validation
self.trainingData = FileIO.loadDataSet(config, config['ratings'])
#self.trainingData,self.testData = DataSplit.crossValidation(self.trainingData,int(self.evaluation['-cv']))
else:
print 'Evaluation is not well configured!'
exit(-1)
if config.contains('social'):
self.socialConfig = LineConfig(self.config['social.setup'])
self.relation = FileIO.loadRelationship(config,self.config['social'])
print 'preprocessing...'
def execute(self):
#import the algorithm module
importStr = 'from method.' + self.config['methodName'] + ' import ' + self.config['methodName']
exec (importStr)
if self.evaluation.contains('-cv'):
k = int(self.evaluation['-cv'])
if k <= 1 or k > 10:
k = 3
#create the manager used to communication in multiprocess
manager = Manager()
m = manager.dict()
i = 1
tasks = []
for train,test in DataSplit.crossValidation(self.trainingData,k):
fold = '['+str(i)+']'
if self.config.contains('social'):
method = self.config['methodName'] + "(self.config,train,test,self.labels,self.relation,fold)"
else:
method = self.config['methodName'] + "(self.config,train,test,self.labels,fold)"
#create the process
p = Process(target=run,args=(m,eval(method),i))
tasks.append(p)
i+=1
#start the processes
for p in tasks:
p.start()
#wait until all processes are completed
for p in tasks:
p.join()
#compute the mean error of k-fold cross validation
self.measure = [dict(m)[i] for i in range(1,k+1)]
res = []
pattern = re.compile('(\d+\.\d+)')
countPattern = re.compile('\d+\\n')
labelPattern = re.compile('\s\d{1}[^\.|\n|\d]')
labels = re.findall(labelPattern, self.measure[0])
values = np.array([0]*9,dtype=float)
count = np.array([0,0,0],dtype=int)
for report in self.measure:
values += np.array(re.findall(pattern,report),dtype=float)
count+=np.array(re.findall(countPattern,report),dtype=int)
values/=k
values=np.around(values,decimals=4)
res.append(' precision recall f1-score support\n\n')
res.append(' '+labels[0]+' '+' '.join(np.array(values[0:3],dtype=str).tolist())+' '+str(count[0])+'\n')
res.append(' '+labels[1]+' '+' '.join(np.array(values[3:6],dtype=str).tolist())+' '+str(count[1])+'\n\n')
res.append(' avg/total ' + ' '.join(np.array(values[6:9], dtype=str).tolist()) + ' ' + str(count[2]) + '\n')
print 'Total:'
print ''.join(res)
# for line in lines[1:]:
#
# measure = self.measure[0][i].split(':')[0]
# total = 0
# for j in range(k):
# total += float(self.measure[j][i].split(':')[1])
# res.append(measure+':'+str(total/k)+'\n')
#output result
currentTime = strftime("%Y-%m-%d %H-%M-%S", localtime(time()))
outDir = LineConfig(self.config['output.setup'])['-dir']
fileName = self.config['methodName'] +'@'+currentTime+'-'+str(k)+'-fold-cv' + '.txt'
FileIO.writeFile(outDir,fileName,res)
print 'The results have been output to '+abspath(LineConfig(self.config['output.setup'])['-dir'])+'\n'
else:
if self.config.contains('social'):
method = self.config['methodName'] + '(self.config,self.trainingData,self.testData,self.labels,self.relation)'
else:
method = self.config['methodName'] + '(self.config,self.trainingData,self.testData,self.labels)'
eval(method).execute()
