def experiment2_user_qualification_invited_limitation(active_learning_ratio=0.1, MAX_INVITED=50):
print "\n==================================="
print "experiment2 choosing qualified active learning data after classification started with invitation limit"
print "==================================="
"""the test data is still in movieDataBase.core. Next is the step 1 """
print "\n==================================="
print "step 1 binary classification started"
print "==================================="
subprocess.call(
"./Generate/libFM -task c -train Generate/train_step1.libfm -test Generate/test_step1.libfm "
"-method mcmc -iter 1 -out Generate/prediction",
shell=True,
)
# subprocess.call("./Generate/libFM -task c -train Generate/train_step1.libfm -test Generate/test_step1.libfm "
# "-method sgd -learn_rate 0.01 -out Generate/prediction", shell=True)
selected_data_positions = compute_classification.compute_classification(len(dataProcess.test_original_data))
print "\n==================================="
print "choosing users with low rating MSE"
print "==================================="
positive_user_id_movie_id = numpy.zeros(
[dataProcess.movieDataBase.TOTAL_USERS + 1, dataProcess.movieDataBase.TOTAL_MOVIES + 1], dtype=numpy.bool_
)
for index in selected_data_positions:
userId = dataProcess.test_addAllNegative_data[index][0]
movieId = dataProcess.test_addAllNegative_data[index][1]
positive_user_id_movie_id[userId][movieId] = numpy.True_
user_mse_list = list(enumerate(dataProcess.movieDataBase.user_MSE))
user_mse_sorted_list = sorted(user_mse_list, key=lambda x: x[1])
user_invited_times = [0] * (dataProcess.movieDataBase.TOTAL_USERS + 1)
alternative_user_movie_list = []
""" notice that I shuffle the list here"""
movie_choose_list = range(1, dataProcess.TEST_MOVIES + 1)
random.shuffle(movie_choose_list)
for choose_movie_num in movie_choose_list:
movieId = dataProcess.test_from_movie_num_get_movie_id[choose_movie_num]
choose_user_id_set = set()
"""first add qualified and positive users"""
for userId, _ in user_mse_sorted_list:
if positive_user_id_movie_id[userId][movieId] == numpy.True_ and user_invited_times[userId] < MAX_INVITED:
choose_user_id_set.add(userId)
if len(choose_user_id_set) > dataProcess.movieDataBase.TOTAL_USERS * active_learning_ratio:
choose_user_id_set = list(choose_user_id_set)[
: int(dataProcess.movieDataBase.TOTAL_USERS * active_learning_ratio)
]
else:
"""second add positive users"""
for userId, _ in user_mse_sorted_list:
if (
user_invited_times[userId] < MAX_INVITED
and positive_user_id_movie_id[userId][movieId] == numpy.True_
):
choose_user_id_set.add(userId)
if len(choose_user_id_set) >= dataProcess.movieDataBase.TOTAL_USERS * active_learning_ratio:
break
"""third add users with low mse"""
for userId, _ in user_mse_sorted_list:
if user_invited_times[userId] < MAX_INVITED:
choose_user_id_set.add(userId)
if len(choose_user_id_set) >= dataProcess.movieDataBase.TOTAL_USERS * active_learning_ratio:
break
choose_user_id_set = list(choose_user_id_set)[
: int(dataProcess.movieDataBase.TOTAL_USERS * active_learning_ratio) - 1
]
# print len(choose_user_id_set)
for choose_user_id in choose_user_id_set:
alternative_user_movie_list.append([choose_user_id, movieId])
user_invited_times[choose_user_id] += 1
""" add active learning result into train_original_data """
print "\n==================================="
print "step active learning regression started"
print "==================================="
dataProcess.movieDataBase.make_user_movie_rating_matrix(dataProcess.test_original_data)
active_learning_train_data = []
# this scheme is adding every thing in active learning
count = 0
for values in alternative_user_movie_list:
userId = values[0]
movieId = values[1]
ratings = dataProcess.movieDataBase.user_movie_rating_matrix.get(userId)
if ratings is not None:
rating = ratings.get(movieId)
if rating is not None:
active_learning_train_data.append([userId, movieId, rating])
count += 1
train_add_active_learning_data = dataProcess.train_original_data + active_learning_train_data
dataProcess.movieDataBase.store_data_to_file(
train_add_active_learning_data, fileName="train_add_active_learning_data"
)
dataProcess.movieDataBase.generate_libfm_data(train_add_active_learning_data)
dataProcess.movieDataBase.store_data_to_file(dataProcess.movieDataBase.libfm_data, fileName="train_step3.libfm")
# subprocess.call("./Generate/libFM -task r -train Generate/train_step3.libfm -test Generate/test_step3.libfm "
# "-method mcmc -out Generate/prediction", shell=True)
# compute_error.computer_error()
subprocess.call(
"./Generate/libFM -task r -train Generate/train_step3.libfm -test Generate/test_step3.libfm "
"-method sgd -dim '1,1, 200' -learn_rate 0.01 -iter 30 -out Generate/prediction",
shell=True,
)
print "number of alternative user-movie requests=", len(alternative_user_movie_list)
print "number of gained active learning user-movie data=", count
compute_error.computer_error()
def baseline2_random_after_classification(active_learning_ratio=0.1):
print "\n==================================="
print "baseline2 random choosing active learning data after classification started"
print "==================================="
"""the test data is still in movieDataBase.core. Next is the step 1 """
print "\n==================================="
print "step 1 binary classification started"
print "==================================="
subprocess.call(
"./Generate/libFM -task c -train Generate/train_step1.libfm -test Generate/test_step1.libfm "
"-method mcmc -iter 1 -out Generate/prediction",
shell=True,
)
# subprocess.call("./Generate/libFM -task c -train Generate/train_step1.libfm -test Generate/test_step1.libfm "
# "-method sgd -learn_rate 0.01 -out Generate/prediction", shell=True)
selected_data_positions = compute_classification.compute_classification(len(dataProcess.test_original_data))
positive_user_id_movie_id = numpy.zeros(
[dataProcess.movieDataBase.TOTAL_USERS + 1, dataProcess.movieDataBase.TOTAL_MOVIES + 1], dtype=numpy.bool_
)
for index in selected_data_positions:
userId = dataProcess.test_addAllNegative_data[index][0]
movieId = dataProcess.test_addAllNegative_data[index][1]
positive_user_id_movie_id[userId][movieId] = numpy.True_
alternative_user_movie_list = []
for choose_movie_num in range(1, dataProcess.TEST_MOVIES + 1):
movieId = dataProcess.test_from_movie_num_get_movie_id[choose_movie_num]
choose_user_id_set = set()
"""first add all positive users"""
for userId in range(1, dataProcess.movieDataBase.TOTAL_USERS + 1):
if positive_user_id_movie_id[userId][movieId] == numpy.True_:
choose_user_id_set.add(userId)
if len(choose_user_id_set) > dataProcess.movieDataBase.TOTAL_USERS * active_learning_ratio:
choose_user_id_set = list(choose_user_id_set)[
: int(dataProcess.movieDataBase.TOTAL_USERS * active_learning_ratio)
]
else:
while len(choose_user_id_set) < dataProcess.movieDataBase.TOTAL_USERS * active_learning_ratio:
choose_user_id_set.add(random.randint(1, dataProcess.movieDataBase.TOTAL_USERS))
choose_user_id_set = list(choose_user_id_set)[
: int(dataProcess.movieDataBase.TOTAL_USERS * active_learning_ratio) - 1
]
for choose_user_id in choose_user_id_set:
alternative_user_movie_list.append([choose_user_id, movieId])
""" add active learning result into train_original_data """
print "\n==================================="
print "step active learning regression started"
print "==================================="
dataProcess.movieDataBase.make_user_movie_rating_matrix(dataProcess.test_original_data)
active_learning_train_data = []
# this scheme is adding every thing in active learning
count = 0
for values in alternative_user_movie_list:
userId = values[0]
movieId = values[1]
ratings = dataProcess.movieDataBase.user_movie_rating_matrix.get(userId)
if ratings is not None:
rating = ratings.get(movieId)
if rating is not None:
active_learning_train_data.append([userId, movieId, rating])
count += 1
train_add_active_learning_data = dataProcess.train_original_data + active_learning_train_data
dataProcess.movieDataBase.store_data_to_file(
train_add_active_learning_data, fileName="train_add_active_learning_data"
)
dataProcess.movieDataBase.generate_libfm_data(train_add_active_learning_data)
dataProcess.movieDataBase.store_data_to_file(dataProcess.movieDataBase.libfm_data, fileName="train_step3.libfm")
# subprocess.call("./Generate/libFM -task r -train Generate/train_step3.libfm -test Generate/test_step3.libfm "
# "-method mcmc -out Generate/prediction", shell=True)
# compute_error.computer_error()
subprocess.call(
"./Generate/libFM -task r -train Generate/train_step3.libfm -test Generate/test_step3.libfm "
"-method sgd -dim '1,1, 200' -learn_rate 0.01 -iter 30 -out Generate/prediction",
shell=True,
)
print "number of alternative user-movie requests=", len(alternative_user_movie_list)
print "number of gained active learning user-movie data=", count
compute_error.computer_error()
def experiment1():
movieDataBase = MovieDataBase()
movieDataBase.generate_complete_rating_data(regenerate=False)
movieDataBase.make_sorted_rating_data([5, 1, 0])
sorted_rating_data = movieDataBase.out_rating_data[:]
movieDataBase.synchronize()
movieDataBase.make_slice(count_movie_slice=range(1, 1201))
movieDataBase.synchronize()
train_original_data = movieDataBase.core_rating_data[:]
movieDataBase.store_data_to_file(fileName='train_original_data')
movieDataBase.generate_libfm_data(omitMovie=True)
movieDataBase.store_data_to_file(movieDataBase.libfm_data, 'train_step2.libfm')
movieDataBase.add_negative_data()
movieDataBase.synchronize()
train_addNegative_data = movieDataBase.core_rating_data[:]
movieDataBase.store_data_to_file(fileName='train_addNegative_data')
movieDataBase.generate_libfm_data(omitMovie=True)
movieDataBase.store_data_to_file(movieDataBase.libfm_data, 'train_step1.libfm')
movieDataBase.load_core_rating_data(sorted_rating_data)
movieDataBase.make_slice(count_movie_slice=range(1201, 1441))
movieDataBase.synchronize()
test_original_data = movieDataBase.core_rating_data[:]
movieDataBase.store_data_to_file(fileName='test_original_data')
movieDataBase.generate_libfm_data(shuffle=False)
movieDataBase.store_data_to_file(movieDataBase.libfm_data, fileName='test_step3.libfm')
movieDataBase.add_negative_data(addAllUsers=True)
movieDataBase.synchronize()
test_addAllNegative_data = movieDataBase.core_rating_data[:]
movieDataBase.store_data_to_file(fileName='test_addAllNegative_data')
movieDataBase.generate_libfm_data(omitMovie=True, shuffle=False)
movieDataBase.store_data_to_file(movieDataBase.libfm_data, 'test_step1.libfm')
movieDataBase.store_data_to_file(movieDataBase.libfm_data, 'test_step2.libfm')
"""the test data is still in movieDataBase.core. Next is the step 1 """
subprocess.call("./Generate/libFM -task c -train Generate/train_step1.libfm -test Generate/test_step1.libfm "
"-method mcmc -out Generate/prediction", shell=True)
# subprocess.call("./Generate/libFM -task c -train Generate/train_step1.libfm -test Generate/test_step1.libfm "
# "-method sgd -learn_rate 0.01 -out Generate/prediction", shell=True)
selected_data_positions = compute_classification.compute_classification(len(test_original_data))
alternative_user_movie_list = []
for index in selected_data_positions:
userId = movieDataBase.core_rating_data[index][0]
movieId = movieDataBase.core_rating_data[index][1]
alternative_user_movie_list.append([userId, movieId])
movieDataBase.make_alternative_user_movie_matrix(alternative_user_movie_list)
""" step 2 regression"""
# subprocess.call("./Generate/libFM -task r -train Generate/train_step2.libfm -test Generate/test_step2.libfm "
# "-method mcmc -out Generate/prediction", shell=True)
subprocess.call("./Generate/libFM -task r -train Generate/train_step2.libfm -test Generate/test_step2.libfm "
"-method sgd -learn_rate 0.001 -iter 70 -out Generate/prediction", shell=True)
""" step 3 add active learning result into train_original_data """
movieDataBase.make_user_movie_rating_matrix(test_original_data)
active_learning_train_data = []
# this scheme is adding every thing in active learning
count = 0
for values in alternative_user_movie_list:
userId = values[0]
movieId = values[1]
ratings = movieDataBase.user_movie_rating_matrix.get(userId)
if ratings is not None:
rating = ratings.get(movieId)
if rating is not None:
active_learning_train_data.append([userId, movieId, rating])
count += 1
train_add_active_learning_data = train_original_data + active_learning_train_data
movieDataBase.store_data_to_file(train_add_active_learning_data, fileName='train_add_active_learning_data')
movieDataBase.generate_libfm_data(train_add_active_learning_data)
movieDataBase.store_data_to_file(movieDataBase.libfm_data, fileName='train_step3.libfm')
# subprocess.call("./Generate/libFM -task r -train Generate/train_step3.libfm -test Generate/test_step3.libfm "
# "-method mcmc -out Generate/prediction", shell=True)
# compute_error.computer_error()
subprocess.call("./Generate/libFM -task r -train Generate/train_step3.libfm -test Generate/test_step3.libfm "
"-method sgd -dim '1,1, 80' -learn_rate 0.001 -iter 160 -out Generate/prediction", shell=True)
compute_error.computer_error()
def baseline2_random_after_classification(active_learning_ratio=0.1):
print '\n==================================='
print 'baseline2 random choosing active learning data after classification started'
print '==================================='
"""the test data is still in movieDataBase.core. Next is the step 1 """
print '\n==================================='
print 'step 1 binary classification started'
print '==================================='
subprocess.call("./Generate/libFM -task c -train Generate/train_step1.libfm -test Generate/test_step1.libfm "
"-method mcmc -iter 1 -out Generate/prediction", shell=True)
# subprocess.call("./Generate/libFM -task c -train Generate/train_step1.libfm -test Generate/test_step1.libfm "
# "-method sgd -learn_rate 0.01 -out Generate/prediction", shell=True)
selected_data_positions_tmp = compute_classification.compute_classification(len(dataProcess.test_original_data))
number_of_active_data = (int(dataProcess.movieDataBase.TOTAL_USERS*active_learning_ratio)-1)*240
number_of_index = len(dataProcess.test_addAllNegative_data)
selected_data_positions = set()
while len(selected_data_positions) < number_of_active_data:
""" next line is wrong but has good experiment behavior i want to know why."""
# selected_data_positions.add(random.randint(0, len(selected_data_positions_tmp)-1))
selected_data_positions.add(random.choice(selected_data_positions_tmp))
alternative_user_movie_list = []
for index in selected_data_positions:
userId = dataProcess.test_addAllNegative_data[index][0]
movieId = dataProcess.test_addAllNegative_data[index][1]
alternative_user_movie_list.append([userId, movieId])
# movieDataBase.make_alternative_user_movie_matrix(alternative_user_movie_list)
""" add active learning result into train_original_data """
print '\n==================================='
print 'step active learning regression started'
print '==================================='
dataProcess.movieDataBase.make_user_movie_rating_matrix(dataProcess.test_original_data)
active_learning_train_data = []
# this scheme is adding every thing in active learning
count = 0
for values in alternative_user_movie_list:
userId = values[0]
movieId = values[1]
ratings = dataProcess.movieDataBase.user_movie_rating_matrix.get(userId)
if ratings is not None:
rating = ratings.get(movieId)
if rating is not None:
active_learning_train_data.append([userId, movieId, rating])
count += 1
train_add_active_learning_data = dataProcess.train_original_data + active_learning_train_data
dataProcess.movieDataBase.store_data_to_file(train_add_active_learning_data, fileName='train_add_active_learning_data')
dataProcess.movieDataBase.generate_libfm_data(train_add_active_learning_data)
dataProcess.movieDataBase.store_data_to_file(dataProcess.movieDataBase.libfm_data, fileName='train_step3.libfm')
# subprocess.call("./Generate/libFM -task r -train Generate/train_step3.libfm -test Generate/test_step3.libfm "
# "-method mcmc -out Generate/prediction", shell=True)
# compute_error.computer_error()
subprocess.call("./Generate/libFM -task r -train Generate/train_step3.libfm -test Generate/test_step3.libfm "
"-method sgd -dim '1,1, 200' -learn_rate 0.001 -iter 120 -out Generate/prediction", shell=True)
print 'number of alternative user-movie requests=', len(alternative_user_movie_list)
print 'number of gained active learning user-movie data=', count
compute_error.computer_error()
def experiment2_user_qualification(active_learning_ratio=0.1):
print '\n==================================='
print 'experiment2 choosing qualified active learning data after classification started'
print '==================================='
"""the test data is still in movieDataBase.core. Next is the step 1 """
print '\n==================================='
print 'step 1 binary classification started'
print '==================================='
subprocess.call("./Generate/libFM -task c -train Generate/train_step1.libfm -test Generate/test_step1.libfm "
"-method mcmc -iter 1 -out Generate/prediction", shell=True)
# subprocess.call("./Generate/libFM -task c -train Generate/train_step1.libfm -test Generate/test_step1.libfm "
# "-method sgd -learn_rate 0.01 -out Generate/prediction", shell=True)
selected_data_positions = compute_classification.compute_classification(len(dataProcess.test_original_data))
print '\n==================================='
print 'choosing users with low rating MSE'
print '==================================='
number_of_active_data = (int(dataProcess.movieDataBase.TOTAL_USERS*active_learning_ratio)-1)*240
number_of_index = len(dataProcess.test_addAllNegative_data)
alternative_user_movie_list = []
for index in selected_data_positions:
userId = dataProcess.test_addAllNegative_data[index][0]
movieId = dataProcess.test_addAllNegative_data[index][1]
alternative_user_movie_list.append([userId, movieId])
alternative_user_movie_list = sorted(alternative_user_movie_list, key=lambda x: dataProcess.movieDataBase.user_MSE[x[0]])
alternative_user_movie_list = alternative_user_movie_list[:number_of_active_data]
# for x, y in alternative_user_movie_list:
# print x, y
# movieDataBase.make_alternative_user_movie_matrix(alternative_user_movie_list)
""" add active learning result into train_original_data """
print '\n==================================='
print 'step active learning regression started'
print '==================================='
dataProcess.movieDataBase.make_user_movie_rating_matrix(dataProcess.test_original_data)
active_learning_train_data = []
# this scheme is adding every thing in active learning
count = 0
for values in alternative_user_movie_list:
userId = values[0]
movieId = values[1]
ratings = dataProcess.movieDataBase.user_movie_rating_matrix.get(userId)
if ratings is not None:
rating = ratings.get(movieId)
if rating is not None:
active_learning_train_data.append([userId, movieId, rating])
count += 1
train_add_active_learning_data = dataProcess.train_original_data + active_learning_train_data
dataProcess.movieDataBase.store_data_to_file(train_add_active_learning_data, fileName='train_add_active_learning_data')
dataProcess.movieDataBase.generate_libfm_data(train_add_active_learning_data)
dataProcess.movieDataBase.store_data_to_file(dataProcess.movieDataBase.libfm_data, fileName='train_step3.libfm')
# subprocess.call("./Generate/libFM -task r -train Generate/train_step3.libfm -test Generate/test_step3.libfm "
# "-method mcmc -out Generate/prediction", shell=True)
# compute_error.computer_error()
subprocess.call("./Generate/libFM -task r -train Generate/train_step3.libfm -test Generate/test_step3.libfm "
"-method sgd -dim '1,1, 200' -learn_rate 0.001 -iter 50 -out Generate/prediction", shell=True)
print 'number of alternative user-movie requests=', len(alternative_user_movie_list)
print 'number of gained active learning user-movie data=', count
compute_error.computer_error()
def baseline2_random_after_classification(active_learning_ratio=0.1):
movieDataBase = MovieDataBase()
movieDataBase.generate_complete_rating_data(regenerate=False)
movieDataBase.make_sorted_rating_data([5, 1, 0])
sorted_rating_data = movieDataBase.out_rating_data[:]
movieDataBase.synchronize()
movieDataBase.make_slice(count_movie_slice=range(1, 1201))
movieDataBase.synchronize()
train_original_data = movieDataBase.core_rating_data[:]
movieDataBase.store_data_to_file(fileName='train_original_data')
movieDataBase.generate_libfm_data(omitMovie=True)
movieDataBase.store_data_to_file(movieDataBase.libfm_data, 'train_step2.libfm')
movieDataBase.add_negative_data()
movieDataBase.synchronize()
train_addNegative_data = movieDataBase.core_rating_data[:]
movieDataBase.store_data_to_file(fileName='train_addNegative_data')
movieDataBase.generate_libfm_data(omitMovie=True)
movieDataBase.store_data_to_file(movieDataBase.libfm_data, 'train_step1.libfm')
movieDataBase.load_core_rating_data(sorted_rating_data)
movieDataBase.make_slice(count_movie_slice=range(1201, 1441))
movieDataBase.synchronize()
test_original_data = movieDataBase.core_rating_data[:]
movieDataBase.store_data_to_file(fileName='test_original_data')
movieDataBase.generate_libfm_data(shuffle=False)
movieDataBase.store_data_to_file(movieDataBase.libfm_data, fileName='test_step3.libfm')
movieDataBase.add_negative_data(addAllUsers=True)
movieDataBase.synchronize()
test_addAllNegative_data = movieDataBase.core_rating_data[:]
movieDataBase.store_data_to_file(fileName='test_addAllNegative_data')
movieDataBase.generate_libfm_data(omitMovie=True, shuffle=False)
movieDataBase.store_data_to_file(movieDataBase.libfm_data, 'test_step1.libfm')
movieDataBase.store_data_to_file(movieDataBase.libfm_data, 'test_step2.libfm')
print '\n==================================='
print 'baseline2 random choosing active learning data after classification started'
print '==================================='
"""the test data is still in movieDataBase.core. Next is the step 1 """
print '\n==================================='
print 'step 1 binary classification started'
print '==================================='
subprocess.call("./Generate/libFM -task c -train Generate/train_step1.libfm -test Generate/test_step1.libfm "
"-method mcmc -iter 1 -out Generate/prediction", shell=True)
# subprocess.call("./Generate/libFM -task c -train Generate/train_step1.libfm -test Generate/test_step1.libfm "
# "-method sgd -learn_rate 0.01 -out Generate/prediction", shell=True)
selected_data_positions_tmp = compute_classification.compute_classification(len(test_original_data))
number_of_index = len(test_addAllNegative_data)
invited_user_movies = [0] * (movieDataBase.TOTAL_USERS+1)
selected_data_positions = set()
while len(selected_data_positions) < number_of_index*active_learning_ratio:
new_index = random.choice(selected_data_positions_tmp)
if invited_user_movies[movieDataBase.core_rating_data[new_index][0]] < MAX_INVITATION:
selected_data_positions.add(new_index)
invited_user_movies[movieDataBase.core_rating_data[new_index][0]] += 1
alternative_user_movie_list = []
for index in selected_data_positions:
userId = movieDataBase.core_rating_data[index][0]
movieId = movieDataBase.core_rating_data[index][1]
alternative_user_movie_list.append([userId, movieId])
movieDataBase.make_alternative_user_movie_matrix(alternative_user_movie_list)
""" add active learning result into train_original_data """
print '\n==================================='
print 'step active learning regression started'
print '==================================='
movieDataBase.make_user_movie_rating_matrix(test_original_data)
active_learning_train_data = []
# this scheme is adding every thing in active learning
count = 0
for values in alternative_user_movie_list:
userId = values[0]
movieId = values[1]
ratings = movieDataBase.user_movie_rating_matrix.get(userId)
if ratings is not None:
rating = ratings.get(movieId)
if rating is not None:
active_learning_train_data.append([userId, movieId, rating])
count += 1
train_add_active_learning_data = train_original_data + active_learning_train_data
movieDataBase.store_data_to_file(train_add_active_learning_data, fileName='train_add_active_learning_data')
movieDataBase.generate_libfm_data(train_add_active_learning_data)
movieDataBase.store_data_to_file(movieDataBase.libfm_data, fileName='train_step3.libfm')
# subprocess.call("./Generate/libFM -task r -train Generate/train_step3.libfm -test Generate/test_step3.libfm "
# "-method mcmc -out Generate/prediction", shell=True)
# compute_error.computer_error()
subprocess.call("./Generate/libFM -task r -train Generate/train_step3.libfm -test Generate/test_step3.libfm "
"-method sgd -dim '1,1, 200' -learn_rate 0.001 -iter 20 -out Generate/prediction", shell=True)
print 'number of alternative user-movie requests=', len(alternative_user_movie_list)
print 'number of gained active learning user-movie data=', count
compute_error.computer_error()
def experiment3_user_similarity(active_learning_ratio=0.1):
print '\n==================================='
print 'experiment3 choosing special active learning users after classification started'
print '==================================='
"""the test data is still in movieDataBase.core. Next is the step 1 """
print '\n==================================='
print 'step 1 binary classification started'
print '==================================='
subprocess.call("./Generate/libFM -task c -train Generate/train_step1.libfm -test Generate/test_step1.libfm "
"-method mcmc -iter 1 -out Generate/prediction", shell=True)
# subprocess.call("./Generate/libFM -task c -train Generate/train_step1.libfm -test Generate/test_step1.libfm "
# "-method sgd -learn_rate 0.01 -out Generate/prediction", shell=True)
selected_data_positions = compute_classification.compute_classification(len(dataProcess.test_original_data))
positive_user_id_movie_id = numpy.zeros(
[dataProcess.movieDataBase.TOTAL_USERS, dataProcess.TEST_MOVIES], dtype=numpy.bool_)
for index in selected_data_positions:
userId = dataProcess.test_addAllNegative_data[index][0]
movieId = dataProcess.test_addAllNegative_data[index][1]
positive_user_id_movie_id[userId-1][dataProcess.test_from_movie_id_get_movie_num[movieId]-1] = numpy.True_
print '\n==================================='
print 'step2: regression started'
print '==================================='
subprocess.call("./Generate/libFM -task r -train Generate/train_step2.libfm -test Generate/test_step2.libfm "
"-method mcmc -iter 1 -out Generate/prediction", shell=True)
f1 = open('Generate/prediction')
step2_pred_rating = f1.readlines()
f1.close()
step2_pred_rating = [float(x.strip()) for x in step2_pred_rating]
step2_pred_data = []
for i in range(len(dataProcess.test_addAllNegative_data)):
step2_pred_data.append([dataProcess.test_addAllNegative_data[i][0],
dataProcess.test_addAllNegative_data[i][1], step2_pred_rating[i]])
dataProcess.movieDataBase.compute_numpy_matrix(step2_pred_data)
pred_rating_numpy_matrix = dataProcess.movieDataBase.numpy_rating_matrix
pred_from_movie_id_get_movie_num = dataProcess.movieDataBase.from_movie_id_get_movie_num
# print pred_rating_numpy_matrix[10][pred_from_movie_id_get_movie_num[743]-1]
dictionary = dict()
dictionary['train_rating'] = dataProcess.train_rating_numpy_matrix
dictionary['predict_rating'] = pred_rating_numpy_matrix
dictionary['positive_rating'] = positive_user_id_movie_id
scipy.io.savemat('step2.mat', dictionary)
"""next we have to use Matlab"""
return
print '\n==================================='
print 'choosing users with special similarity'
print '==================================='
number_of_index = len(test_addAllNegative_data)
alternative_user_movie_list = []
alternative_user_movie_list.append([userId, movieId])
alternative_user_movie_list_sorted = sorted(alternative_user_movie_list, key=lambda x: x[1])
# for x, y in alternative_user_movie_list_sorted:
# print x, y
# alternative_user_movie_list = []
# invited_user_movies = [0] * (movieDataBase.TOTAL_USERS+1)
# for userId, movieId in alternative_user_movie_list_sorted:
# if invited_user_movies[userId] < MAX_INVITATION:
# invited_user_movies[userId] += 1
# alternative_user_movie_list.append([userId, movieId])
# if len(alternative_user_movie_list) >= int(number_of_index*active_learning_ratio):
# break
# for x, y in alternative_user_movie_list:
# print x, y
movieDataBase.make_alternative_user_movie_matrix(alternative_user_movie_list)
""" add active learning result into train_original_data """
print '\n==================================='
print 'step active learning regression started'
print '==================================='
movieDataBase.make_user_movie_rating_matrix(test_original_data)
active_learning_train_data = []
# this scheme is adding every thing in active learning
count = 0
for values in alternative_user_movie_list:
userId = values[0]
movieId = values[1]
ratings = movieDataBase.user_movie_rating_matrix.get(userId)
if ratings is not None:
rating = ratings.get(movieId)
if rating is not None:
active_learning_train_data.append([userId, movieId, rating])
count += 1
train_add_active_learning_data = train_original_data + active_learning_train_data
movieDataBase.store_data_to_file(train_add_active_learning_data, fileName='train_add_active_learning_data')
movieDataBase.generate_libfm_data(train_add_active_learning_data)
movieDataBase.store_data_to_file(movieDataBase.libfm_data, fileName='train_step3.libfm')
# subprocess.call("./Generate/libFM -task r -train Generate/train_step3.libfm -test Generate/test_step3.libfm "
# "-method mcmc -out Generate/prediction", shell=True)
# compute_error.computer_error()
subprocess.call("./Generate/libFM -task r -train Generate/train_step3.libfm -test Generate/test_step3.libfm "
"-method sgd -dim '1,1, 200' -learn_rate 0.001 -iter 10 -out Generate/prediction", shell=True)
print 'number of alternative user-movie requests=', len(alternative_user_movie_list)
print 'number of gained active learning user-movie data=', count
compute_error.computer_error()