def read_data(ctrl, args):
prefix = "./dataset/" + args.data
if args.format == "metis":
input_graph_path = prefix + ".metis"
graph, mapping = read_graph(ctrl, input_graph_path, metis=True)
else:
input_graph_path = prefix + ".edgelist"
graph, mapping = read_graph(ctrl, input_graph_path, edgelist=True)
return input_graph_path, graph, mapping
def main(trial=None, args=None):
"""
Parsing command line parameters.
Creating target matrix.
Fitting an SGCN.
Predicting edge signs and saving the embedding.
"""
# fix seed
np.random.seed(args.seed)
torch.manual_seed(args.seed)
torch.cuda.manual_seed_all(args.seed)
random.seed(args.seed)
tab_printer(args)
# read data
edges = read_graph(args)
trainer = SHIGTrainer(args, edges)
trainer.setup_dataset()
# training
trainer.create_and_train_model(trial)
if trial.should_prune():
raise optuna.exceptions.TrialPruned()
if args.metric_to_optimize is 'AUC':
return trainer.logs["performance"][-1][1]
elif args.metric_to_optimize is 'F1':
return trainer.logs["performance"][-1][2]
def main():
graph, init_states = utils.read_graph(os.getcwd() + ct.EDGE_LIST_PATH,
os.getcwd() + ct.INITIAL_STATE_PATH)
init_paths = utils.initial_guess(init_states, graph)
print('Original ')
for path in init_paths:
print(path)
print(utils.collective_cost(graph, init_paths))
state, cost, hist = tabu_search(graph, init_paths)
print('Annealed')
for path in state:
print(path)
print(cost)
utils.plot_graph_paths_max(graph,
paths=init_paths,
title='Individual Planning')
utils.plot_graph_paths_max(graph,
paths=state,
title='Tabu Search Cooperative Planning')
plt.show()
x = range(len(hist))
plt.plot(x, hist)
plt.xlabel("Step")
plt.ylabel("Cost function")
plt.show()
def main():
p = argparse.ArgumentParser(
description=
'This script is for experiment of solving TSP with TS and SA')
p.add_argument('-g',
'--graph',
type=str,
help='path to graph csv file',
required=True)
option_args = p.parse_known_args()[0]
path = option_args.graph
if not os.path.exists(path):
print("File not found")
sys.exit(1)
graph = read_graph(path)
tabu_table = experiment(tabu_search, graph)
sa_table = experiment(simulated_anealing, graph)
print("## Tabu Search Result")
print(tabu_table)
print()
print("## Simulated Anealing Result")
print(sa_table)
print()
def __init__(self, args):
"""
Initializing the training object.
:param args: Arguments object.
"""
self.args = args
self.graph = read_graph(self.args.edge_path)
self.initialize_model_and_features()
def learn_model(args):
"""
Method to create adjacency matrix powers, read features, and learn embedding.
:param args: Arguments object.
"""
A = read_graph(args.edge_path)
model = GraRep(A, args)
model.optimize()
model.save_embedding()
def run_benchmark():
config = create_tf_config()
graph_def = read_graph(FLAGS.input_graph)
tf.import_graph_def(graph_def, name='')
input_tensor = tf.compat.v1.get_default_graph().get_tensor_by_name('inputs:0')
output_tensor = tf.compat.v1.get_default_graph().get_tensor_by_name('output_boxes:0')
dummy_data_shape = list(input_tensor.shape)
dummy_data_shape[0] = FLAGS.batch_size
dummy_data = np.random.random(dummy_data_shape).astype(np.float32)
if FLAGS.profiling != True:
num_warmup = 200
total_iter = 1000
else:
num_warmup = 20
total_iter = 100
total_time = 0.0
with tf.compat.v1.Session(config=config) as sess:
print("Running warm-up")
for i in range(num_warmup):
sess.run(output_tensor, {input_tensor: dummy_data})
print("Warm-up complete")
for i in range(1, total_iter + 1):
start_time = time.time()
sess.run(output_tensor, {input_tensor: dummy_data})
end_time = time.time()
if i % 10 == 0:
print(
"Steps = {0}, {1:10.6f} samples/sec".format(i, FLAGS.batch_size / duration))
duration = end_time - start_time
total_time += duration
if FLAGS.profiling:
options = tf.compat.v1.RunOptions(
trace_level=tf.compat.v1.RunOptions.FULL_TRACE)
run_metadata = tf.compat.v1.RunMetadata()
sess.run(output_tensor, {input_tensor: dummy_data},
options=options, run_metadata=run_metadata)
fetched_timeline = timeline.Timeline(run_metadata.step_stats)
chrome_trace = fetched_timeline.generate_chrome_trace_format()
with open("timeline_%s.json" % (time.time()), 'w') as f:
f.write(chrome_trace)
print("Average Thoughput: %f samples/sec" %
(total_iter * FLAGS.batch_size / total_time))
def main():
"""
Parsing command lines, creating target matrix, fitting BANE and saving the embedding.
"""
args = parameter_parser()
tab_printer(args)
P = read_graph(args)
X = read_features(args)
model = BANE(args, P, X)
model.fit()
model.save_embedding()
def __init__(self, args):
"""
Initializing the training object.
:param args: Arguments parsed from command line.
"""
self.args = args
self.graph = read_graph(self.args.edge_path)
self.features = read_features(self.args.feature_path)
self.device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
self.initialize_model()
self.simulate_walks()
def main():
"""
Parsing command lines, creating target matrix, fitting DANMF and saving the embedding.
"""
args = parameter_parser()
tab_printer(args)
graph = read_graph(args)
model = DANMF(graph, args)
model.pre_training()
model.training()
if args.calculate_loss:
loss_printer(model.loss)
def read(self, key, cls):
if (cls in self.__registry):
id = self.__registry[cls] % key
if (id in self.__last_read):
logging.debug("Preventing reading of %s" % id)
return self.__last_read[id]
else:
path = self.__build_path(key, cls)
data = read_graph(path)
self.__last_read = {} #FIXME: current it has only one item, which can be the right length?
self.__last_read[id] = data
return data
else:
return ""
def __init__(self):
t = time.time()
print "reading graph..."
self.n_node, self.n_relation, self.graph = utils.read_graph(
config.graph_filename)
self.node_list = self.graph.keys() #range(0, self.n_node)
print '[%.2f] reading graph finished. #node = %d #relation = %d' % (
time.time() - t, self.n_node, self.n_relation)
t = time.time()
print "read initial embeddings..."
self.node_embed_init_d = utils.read_embeddings(
filename=config.pretrain_node_emb_filename_d,
n_node=self.n_node,
n_embed=config.n_emb)
self.node_embed_init_g = utils.read_embeddings(
filename=config.pretrain_node_emb_filename_g,
n_node=self.n_node,
n_embed=config.n_emb)
#self.rel_embed_init_d = utils.read_embeddings(filename=config.pretrain_rel_emb_filename_d,
# n_node=self.n_node,
# n_embed=config.n_emb)
#self.rel_embed_init_g = utils.read_embeddings(filename=config.pretrain_rel_emb_filename_g,
# n_node=self.n_node,
# n_embed=config.n_emb)
print "[%.2f] read initial embeddings finished." % (time.time() - t)
print "build GAN model..."
self.discriminator = None
self.generator = None
self.build_generator()
self.build_discriminator()
self.latest_checkpoint = tf.train.latest_checkpoint(config.model_log)
self.saver = tf.train.Saver()
self.dblp_evaluation = DBLP_evaluation()
self.yelp_evaluation = Yelp_evaluation()
self.aminer_evaluation = Aminer_evaluation()
self.config = tf.ConfigProto()
self.config.gpu_options.allow_growth = True
self.init_op = tf.group(tf.global_variables_initializer(),
tf.local_variables_initializer())
self.sess = tf.Session(config=self.config)
self.sess.run(self.init_op)
self.show_config()
def main():
"""
Parsing command lines, creating target matrix, fitting an SGCN, predicting edge signs, and saving the embedding.
"""
args = parameter_parser()
tab_printer(args)
edges = read_graph(args)
trainer = SignedGCNTrainer(args, edges)
trainer.setup_dataset()
trainer.create_and_train_model()
if args.test_size > 0:
trainer.save_model()
score_printer(trainer.logs)
save_logs(args, trainer.logs)
def load_graph(dataset, labels_is_onehot=True):
features = read_feature("./data/" + dataset + ".feature",
is_normalize=False)
if os.path.exists("./data/" + dataset + ".label"):
labels = read_label("./data/" + dataset + ".label",
is_onehot=labels_is_onehot)
else:
labels = None
G = read_graph("./data/" + dataset + '.edgelist')
graph = Graph(features, G, labels)
return graph
def read(self, key, cls):
if (cls in self.__registry):
id = self.__registry[cls] % key
if (id in self.__last_read):
logging.debug("Preventing reading of %s" % id)
return self.__last_read[id]
else:
path = self.__build_path(key, cls)
data = read_graph(path)
self.__last_read = {
} #FIXME: current it has only one item, which can be the right length?
self.__last_read[id] = data
return data
else:
return ""
def main():
p = argparse.ArgumentParser(
description='This script is for solve TSP with simulated anealing')
p.add_argument('-g', '--graph', type=str,
help='path to graph csv file', required=True)
option_args = p.parse_known_args()[0]
path = option_args.graph
if not os.path.exists(path):
print("File not found")
sys.exit(1)
graph = read_graph(path)
s = simulated_anealing(graph)
print('Answer')
print("Path:", s, ", Cost:", get_cost(s, graph))
def main():
"""
Parsing command line parameters.
Creating target matrix.
Fitting an SGCN.
Predicting edge signs and saving the embedding.
"""
args = parameter_parser()
avg_auc = []
avg_f1 = []
avg_precision = []
avg_recall = []
avg_acc = []
for x in range(int(args.num_runs)):
print("Iteration: ", x)
tab_printer(args)
edges = read_graph(args)
trainer = SignedGCNTrainer(args, edges)
trainer.setup_dataset()
trainer.create_and_train_model()
if args.test_size > 0:
trainer.save_model()
score_printer(trainer.logs)
save_logs(args, trainer.logs)
avg_auc.append(score_printer(trainer.logs, avg='auc')[0])
print("This run's AUC: ",
"%.3f" % (score_printer(trainer.logs, avg='auc')[0]))
print('-----')
avg_f1.append(score_printer(trainer.logs, avg='auc')[1])
avg_precision.append(score_printer(trainer.logs, avg='auc')[2])
avg_recall.append(score_printer(trainer.logs, avg='auc')[3])
avg_acc.append(score_printer(trainer.logs, avg='auc')[4])
print('AUC averaged over {} runs: '.format(args.num_runs),
"%.3f" % np.mean(avg_auc))
print('F1 averaged over {} runs: '.format(args.num_runs),
"%.3f" % np.mean(avg_f1))
print('Precision averaged over {} runs: '.format(args.num_runs),
"%.3f" % np.mean(avg_precision))
print('Recall averaged over {} runs: '.format(args.num_runs),
"%.3f" % np.mean(avg_recall))
print('Accuracy averaged over {} runs: '.format(args.num_runs),
"%.3f" % np.mean(avg_acc))
print('Max AUC: ', "%.3f" % max(avg_auc), 'Max F1: ', "%.3f" % max(avg_f1), 'Max Precision: ', "%.3f" % max(avg_precision), \
'Max Recall: ', "%.3f" % max(avg_recall), 'Max Accuracy', "%.3f" % max(avg_acc))
def main(fun, trials=8):
"""
:param trials:
:param fun: a function which should take 2 arguments
1. graph
2. init_states (i.e. the paths) [[..], [..], ..]
And it should solve the problem and return a tuple
(solution_paths, cost)
see tabu_search for an example
:return:
"""
graph, init_states = utils.read_graph(os.getcwd() + ct.EDGE_LIST_PATH,
os.getcwd() + ct.INITIAL_STATE_PATH)
init_paths = utils.initial_guess(init_states, graph)
times = []
costs = []
# no use for this rn, but maybe it'll have a use later on? for visualization
# or something...
solutions = []
for _ in range(trials):
# in case these are changed
init_graph = dup(graph)
init_state = dup(init_paths)
start_time = datetime.now()
res = fun(init_graph, init_state)
solution = res[0]
cost = res[1]
end_time = datetime.now()
times.append((end_time - start_time).seconds * 1000)
costs.append(cost)
solutions.append(solution)
print('Avg cost: ' + str(np.mean(costs)))
print('var cost: ' + str(np.var(costs)))
print('Min cost:' + str(np.min(costs)))
print('Avg time: ' + str(np.mean(times)))
print('var time: ' + str(np.var(times)))
print('Min time:' + str(np.min(times)))
def main():
startTime = datetime.datetime.now()
initialPopulationSize = 100 # Determines the initial sample size of the search space.
numberOfParents = 5 # Determines how many parents are selected to create a new generation.
iterations = 30 # The number of generations that are created before terminating.
graph, init_states = utils.read_graph(os.getcwd() + ct.EDGE_LIST_PATH,
os.getcwd() + ct.INITIAL_STATE_PATH)
populationPaths = create_population(
init_states, graph,
initialPopulationSize) # Creates the initial population
populationPaths = makeEdgeProblem(
populationPaths) # Converts the problem into an edge problem
savedOriginalPaths = populationPaths # Saves the best state for comparison later
for i in range(
0, iterations
): # Iterates the process of creating a new generation, starting from the random sampled initial population
print("Starting iteration" + str(i + 1))
parents = []
for _ in range(numberOfParents):
parent = selection(populationPaths, graph,
int(round(initialPopulationSize / 2)))
parents.append(parent[0])
populationPaths = next_generation(parents, graph,
initialPopulationSize)
output = selection(populationPaths, graph, initialPopulationSize)
endTime = datetime.datetime.now() - startTime
for i in range(0, len(output[0])):
print("Agent" + str(i + 1) + '\'s path: ' + str(output[0][i]))
print("Total cost: " + str(output[1]))
print("Original cost: " +
str(selection(savedOriginalPaths, graph, initialPopulationSize)[1]))
print("Execution time with " + str(iterations) + " iterations: " +
str(endTime.total_seconds() * 1000) + " ms")
def __init__(self):
t = time.time()
print('reading graph...')
self.graph, self.n_node, self.node_list, self.node_list_s, self.egs = utils.read_graph(config.train_file)
self.node_emd_shape = [2, self.n_node, config.n_emb]
print('[%.2f] reading graph finished. #node = %d' % (time.time() - t, self.n_node))
self.dis_node_embed_init = None
self.gen_node_embed_init = None
if config.pretrain_dis_node_emb:
t = time.time()
print('reading initial embeddings...')
dis_node_embed_init = np.array([utils.read_embeddings(filename=x, n_node=self.n_node, n_embed=config.n_emb) \
for x in [config.pretrain_dis_node_emb]])
gen_node_embed_init = np.array([utils.read_embeddings(filename=x, n_node=self.n_node, n_embed=config.n_emb) \
for x in [config.pretrain_gen_node_emb]])
print('[%.2f] read initial embeddings finished.' % (time.time() - t))
print('building DGGAN model...')
self.discriminator = None
self.generator = None
self.build_generator()
self.build_discriminator()
if config.experiment == 'link_prediction':
self.link_prediction = evaluation.LinkPrediction(config)
self.config = tf.ConfigProto()
self.config.gpu_options.allow_growth = True
self.sess = tf.Session(config = self.config)
self.saver = tf.train.Saver(max_to_keep=0)
if config.pretrain_ckpt:
print('restore...')
pretrain_ckpt = tf.train.latest_checkpoint(config.pretrain_ckpt)
self.saver.restore(self.sess, pretrain_ckpt)
else:
print('initial...')
self.init_op = tf.group(tf.global_variables_initializer(), tf.local_variables_initializer())
self.sess.run(self.init_op)
def main():
"""
Parsing command line parameters.
Creating target matrix.
Fitting an SGCN.
Predicting edge signs and saving the embedding.
"""
args = parameter_parser()
tab_printer(args)
args.edge_path = '../input/bitcoin_otc.csv'
args.embedding_path = '../output/embedding/bitcoin_otc_sgcn.csv'
args.features_path = './input/bitcoin_otc.csv'
args.regression_weights_path = '../output/weights/bitcoin_otc_sgcn.csv'
args.epochs = 1
edges = read_graph(args) # 导入训练数据
trainer = SignedGCNTrainer(args, edges)
trainer.setup_dataset() # 计算特征
trainer.create_and_train_model()
if args.test_size > 0:
trainer.save_model()
score_printer(trainer.logs)
save_logs(args, trainer.logs)
import sys
import time
import utils
if __name__ == "__main__":
try:
start1 = time.time()
filename = sys.argv[1]
n = int(sys.argv[2])
strategy = sys.argv[3]
graph = utils.read_graph(filename)
start2 = time.time()
nodes = utils.strategies[strategy](graph, n)
end2 = time.time()
print('Computation Time: %0.3f s' % (end2 - start2))
utils.write_nodes(nodes)
end1 = time.time()
print('Total Runtime: %0.3f s' % (end1 - start1))
except:
print(
" Generates output for the given graph according to the given strategy"
)
print(
" USAGE: python gen.py [input graph file] [number of seeds] [strategy]"
)
print(
" EXAMPLE: python gen.py testgraph1.json 10 closeness_centrality"
)
print(" AVAILABLE STRATEGIES:")
def main(out, *rdfs):
g = utils.read_graph(*rdfs)
generate_void(g, out)
# scores_matrix_one_full = scores_matrix_one.A
# scores_matrix_two_full = scores_matrix_two.A
# plot_matrix(matrix = scores_matrix_one_full)
# plot_matrix(matrix = scores_matrix_two_full)
scores_matrix_one = sp.csr_matrix(np.triu(scores_matrix_one.A, k=1)) # k=1表示不包括对角线
scores_matrix_two = sp.csr_matrix(np.triu(scores_matrix_two.A, k=1))
# 读入train的binary数据
graph_train_path = get_trainset_path(base_dir=all_file_dir,
graph_name=graph_name,
connected_pattern='undirected',
from_zeros_one='0')
G = read_graph(weighted=0, input=graph_train_path, directed=0)
train_binary = sp.csr_matrix(nx.convert_matrix.to_scipy_sparse_matrix(G))
train_binary = sp.csr_matrix(np.triu(train_binary.A, k=1))
# train_binary_full = train_binary.A
# 或 train_binary = sp.csr_matrix(np.array(nx.to_numpy_matrix(G)))
# 构建exist和nonexist的binary
exist_binary = sp.csr_matrix(np.triu(train_binary.A, k=1)) # k=1表示不包括对角线
nonexist_binary = sp.csr_matrix(np.triu(np.ones(exist_binary.shape), k=1) - exist_binary.A)
# 分数归一化到[0.0, 1.0]
scores_matrix_one_norm = normalize_matrix(csr_matrix1 = scores_matrix_one)
scores_matrix_two_norm = normalize_matrix(csr_matrix1 = scores_matrix_two)
# plot_matrix(scores_matrix_one_norm.A)
def get_min_edge_cost(source, sink, graph):
"""
Gets the cost of the edage between the source and the sink.
Returns Inf if there is no direct ebdge between the two
"""
result = [c for s, c in graph[source] if s == sink]
if (any(result)):
return result[0]
return math.inf
if __name__ == "__main__":
graph = utils.read_graph("edges.txt", True)
#init spannning treew with first node
X = [1] # nodes in the spanning Tree so far
V_X = graph # remaining nodes
del V_X[1]
TCost = 0 # total cost of spanning tree so far
# init Min Const of crossing Tree Heap. (Heap contains (Key,Value) pairs => Key - min cost, value - remNode pairs)
minCrossingCostHeap = DynamicKeyHeap(
V_X.keys(),
lambda remainingNode: get_min_edge_cost(remainingNode, 1, V_X))
while any(V_X):
minCost, poppedNode = minCrossingCostHeap.pop_kvp()
TCost += minCost
def auto_PNR(prex=None,
graph_name=None,
emb_method_name1=None,
emb_method_name2=None):
print('----------------------------------------------------------')
time_start = time.time()
# 初始化训练集和测试集的路径
# prex = 'preprocessing_code2//' # 改这里
all_file_dir = 'D:\hybridrec\dataset\split_train_test//' + prex
binNum = 50 # 改这里
emb_method_name1 = emb_method_name1.lower() # 改这里
emb_method_name2 = emb_method_name2.lower() # 改这里
print("dataset: " + graph_name + '\n' + "baselines:" + emb_method_name1 +
"," + emb_method_name2)
conf_method1 = None
conf_method2 = None
if emb_method_name1 in all_embedding_methods:
config_path_method1 = 'conf/' + emb_method_name1 + '.properties'
config_method1 = configparser.ConfigParser()
config_method1.read(config_path_method1)
conf_method1 = dict(config_method1.items("hyperparameters"))
if emb_method_name2 in all_embedding_methods:
config_path_method2 = 'conf/' + emb_method_name2 + '.properties'
config_method2 = configparser.ConfigParser()
config_method2.read(config_path_method2)
conf_method2 = dict(config_method2.items("hyperparameters"))
# 初始化embedding和scores的路径
results_dir = 'D:\hybridrec/results//' + prex
graph_results_dir = results_dir + graph_name + '//'
# 计算emb method 1
if not ((emb_method_name1 == 'arope') or
(emb_method_name1 == 'graph2gauss') or
(is_heuristic_method(emb_method_name1) == True)):
graph_train_path = get_trainset_path(
base_dir=all_file_dir,
graph_name=graph_name,
connected_pattern=get_connp(emb_method_name1),
from_zeros_one=get_from_zeros_one(emb_method_name1))
graph_results_path = graph_results_dir + graph_name + '_' + emb_method_name1 + '.emb'
if not os.path.isfile(graph_results_path):
run_emb_method(input=graph_train_path,
output=graph_results_path,
emb_method_name=emb_method_name1)
# 计算emb method 2
if not ((emb_method_name2 == 'arope') or
(emb_method_name2 == 'graph2gauss') or
(is_heuristic_method(emb_method_name2) == True)):
graph_train_path = get_trainset_path(
base_dir=all_file_dir,
graph_name=graph_name,
connected_pattern=get_connp(emb_method_name2),
from_zeros_one=get_from_zeros_one(emb_method_name2))
graph_results_path = graph_results_dir + graph_name + '_' + emb_method_name2 + '.emb'
if not os.path.isfile(graph_results_path):
run_emb_method(input=graph_train_path,
output=graph_results_path,
emb_method_name=emb_method_name2)
# 计算scores1
if conf_method1 != None:
embedding_size_method1 = int(conf_method1['embedding_size'])
if emb_method_name1 == 'splitter':
scores_matrix_one = inner_product_scores_splitter(
graph_results_dir=graph_results_dir,
dataset_name=graph_name,
emb_method_name=emb_method_name1,
col_start=0,
col_end=embedding_size_method1 + 1,
skiprows=1,
delimiter=',')
elif (emb_method_name1 == 'attentionwalk') or (emb_method_name1
== 'grarep'):
scores_matrix_one = inner_product_scores(
graph_results_dir=graph_results_dir,
dataset_name=graph_name,
emb_method_name=emb_method_name1,
col_start=0,
col_end=embedding_size_method1 + 1,
skiprows=1,
delimiter=',')
elif (emb_method_name1 == 'drne') or (emb_method_name1 == 'prune'):
scores_matrix_one = inner_product_scores(
graph_results_dir=graph_results_dir,
dataset_name=graph_name,
emb_method_name=emb_method_name1,
col_start=0,
col_end=embedding_size_method1,
skiprows=0,
delimiter=' ') # embedding_size_method有一些是要+1有一些不需要的
elif (emb_method_name1 == 'arope'):
scores_matrix_one = inner_product_scores_arope(
all_file_dir=all_file_dir,
graph_name=graph_name,
graph_results_dir=graph_results_dir)
elif (emb_method_name1 == 'graph2gauss'):
scores_matrix_one = energy_kl_scores_graph2gauss(
all_file_dir=all_file_dir,
graph_name=graph_name,
graph_results_dir=graph_results_dir)
elif is_heuristic_method(emb_method_name1):
scores_matrix_one = heuristic_scores(
all_file_dir=all_file_dir,
graph_name=graph_name,
graph_results_dir=graph_results_dir,
heuristic_method=emb_method_name1)
else:
scores_matrix_one = inner_product_scores(
graph_results_dir=graph_results_dir,
dataset_name=graph_name,
emb_method_name=emb_method_name1,
col_start=0,
col_end=embedding_size_method1 + 1,
skiprows=1,
delimiter=' ')
# 计算scores2
if conf_method2 != None:
embedding_size_method2 = int(conf_method2['embedding_size'])
if emb_method_name2 == 'splitter':
scores_matrix_two = inner_product_scores_splitter(
graph_results_dir=graph_results_dir,
dataset_name=graph_name,
emb_method_name=emb_method_name2,
col_start=0,
col_end=embedding_size_method2 + 1,
skiprows=1,
delimiter=',')
elif (emb_method_name2 == 'attentionwalk') or (emb_method_name2
== 'grarep'):
scores_matrix_two = inner_product_scores(
graph_results_dir=graph_results_dir,
dataset_name=graph_name,
emb_method_name=emb_method_name2,
col_start=0,
col_end=embedding_size_method2 + 1,
skiprows=1,
delimiter=',')
elif (emb_method_name2 == 'drne') or (emb_method_name2 == 'prune'):
scores_matrix_two = inner_product_scores(
graph_results_dir=graph_results_dir,
dataset_name=graph_name,
emb_method_name=emb_method_name2,
col_start=0,
col_end=embedding_size_method2,
skiprows=0,
delimiter=' ')
elif (emb_method_name2 == 'arope'):
scores_matrix_two = inner_product_scores_arope(
all_file_dir=all_file_dir,
graph_name=graph_name,
graph_results_dir=graph_results_dir)
elif (emb_method_name2 == 'graph2gauss'):
scores_matrix_two = energy_kl_scores_graph2gauss(
all_file_dir=all_file_dir,
graph_name=graph_name,
graph_results_dir=graph_results_dir)
elif is_heuristic_method(emb_method_name2):
scores_matrix_two = heuristic_scores(
all_file_dir=all_file_dir,
graph_name=graph_name,
graph_results_dir=graph_results_dir,
heuristic_method=emb_method_name2)
else:
scores_matrix_two = inner_product_scores(
graph_results_dir=graph_results_dir,
dataset_name=graph_name,
emb_method_name=emb_method_name2,
col_start=0,
col_end=embedding_size_method2 + 1,
skiprows=1,
delimiter=' ')
# scores取上三角（注意:1、前面需要保证所有的分数在右上角或占满整个矩阵。2、前面有些是右上角，有些是占满整个矩阵）
# scores_matrix_one_full = scores_matrix_one.A
# scores_matrix_two_full = scores_matrix_two.A
# plot_matrix(matrix = scores_matrix_one_full)
# plot_matrix(matrix = scores_matrix_two_full)
scores_matrix_one = sp.csr_matrix(np.triu(scores_matrix_one.A,
k=1)) # k=1表示不包括对角线
scores_matrix_two = sp.csr_matrix(np.triu(scores_matrix_two.A, k=1))
# 读入train的binary数据
graph_train_path = get_trainset_path(base_dir=all_file_dir,
graph_name=graph_name,
connected_pattern='undirected',
from_zeros_one='0')
G = read_graph(weighted=0, input=graph_train_path, directed=0)
train_binary = sp.csr_matrix(nx.convert_matrix.to_scipy_sparse_matrix(G))
train_binary = sp.csr_matrix(np.triu(train_binary.A, k=1))
# train_binary_full = train_binary.A
# 或 train_binary = sp.csr_matrix(np.array(nx.to_numpy_matrix(G)))
# 构建exist和nonexist的binary
exist_binary = sp.csr_matrix(np.triu(train_binary.A, k=1)) # k=1表示不包括对角线
nonexist_binary = sp.csr_matrix(
np.triu(np.ones(exist_binary.shape), k=1) - exist_binary.A)
# 分数归一化到[0.0, 1.0]
scores_matrix_one_norm = normalize_matrix(csr_matrix1=scores_matrix_one)
scores_matrix_two_norm = normalize_matrix(csr_matrix1=scores_matrix_two)
# plot_matrix(scores_matrix_one_norm.A)
# plot_matrix(scores_matrix_two_norm.A)
del scores_matrix_one, scores_matrix_two
gc.collect()
# 划分bin
val_max = 1.0
val_min = 0.0
# bin_array = sorted(divide_bin(val_max = val_max, val_min = val_min, binNum = binNum))
interval = float((val_max - val_min) / binNum)
# 获取exist_binary和nonexist_binary的分数
exist_scores_one_list = (np.array(scores_matrix_one_norm[exist_binary > 0],
dtype=float))[0]
nonexist_scores_one_list = (np.array(
scores_matrix_one_norm[nonexist_binary > 0], dtype=float))[0]
exist_scores_two_list = (np.array(scores_matrix_two_norm[exist_binary > 0],
dtype=float))[0]
nonexist_scores_two_list = (np.array(
scores_matrix_two_norm[nonexist_binary > 0], dtype=float))[0]
# # 变为稀疏矩阵
# exist_scores_one_list_csr = sp.csr_matrix(exist_scores_one_list)
# nonexist_scores_one_list_csr = sp.csr_matrix(nonexist_scores_one_list)
# exist_scores_two_list_csr = sp.csr_matrix(exist_scores_two_list)
# nonexist_scores_two_list_csr = sp.csr_matrix(nonexist_scores_two_list)
# temp = scores_matrix_one_norm[exist_binary > 0][0] # 我怕在把分数变为list的时候出问题
# 初始化两个大小为binNum* bnNum的二维栅格
exist_raster_grids = np.zeros((binNum, binNum))
nonexist_raster_grids = np.zeros((binNum, binNum))
# 计算落在exist_raster_grids栅格的existing links的数量
exist_links_num = len(exist_scores_one_list)
exist_row_col_zero_num = 0 # 那些两个矩阵的分数都是0的不作统计
for i in range(exist_links_num):
# row_index和col_index的范围从0-->binNum-1
if (exist_scores_one_list[i] == 0.0) & (exist_scores_two_list[i]
== 0.0):
exist_row_col_zero_num = exist_row_col_zero_num + 1
continue
row_index = int(
get_row_col_index(score=exist_scores_one_list[i],
interval=interval,
binNum=binNum))
col_index = int(
get_row_col_index(score=exist_scores_two_list[i],
interval=interval,
binNum=binNum))
exist_raster_grids[row_index,
col_index] = exist_raster_grids[row_index,
col_index] + 1
print("exist_row_col_zero_num:" + str(exist_row_col_zero_num))
print('sum exist_raster_grids:' + str(np.sum(exist_raster_grids)))
# 计算落在nonexist_raster_grids栅格的nonexisting links的数量
nonexist_links_num = len(nonexist_scores_one_list)
nonexist_row_col_zero_num = 0 # 那些两个矩阵的分数都是0的不作统计
for i in range(nonexist_links_num):
# row_index和col_index的范围从0-->binNum-1
if (nonexist_scores_one_list[i] <= 0.0) & (nonexist_scores_two_list[i]
<= 0.0):
nonexist_row_col_zero_num = nonexist_row_col_zero_num + 1
continue
row_index = int(
get_row_col_index(score=nonexist_scores_one_list[i],
interval=interval,
binNum=binNum))
col_index = int(
get_row_col_index(score=nonexist_scores_two_list[i],
interval=interval,
binNum=binNum))
nonexist_raster_grids[row_index,
col_index] = nonexist_raster_grids[row_index,
col_index] + 1
print("nonexist_row_col_zero_num:" + str(nonexist_row_col_zero_num))
print('sum nonexist_raster_grids:' + str(np.sum(nonexist_raster_grids)))
# 计算PNR分数
N = train_binary.shape[0]
print("Graph size：" + str(N) + '\n')
L_T = np.sum(train_binary.A)
O = N * (N - 1) / 2
coefficient = (O - L_T) / L_T
PNR1 = coefficient * (exist_raster_grids / (nonexist_raster_grids + 1)
) # 分母加1避免出现inf或nan，不影响evaluation但是可能好看
PNR2 = (exist_raster_grids / nonexist_raster_grids) # inf和nan置为0
PNR2[np.isnan(PNR2)] = 0
PNR2[np.isinf(PNR2)] = 0
PNR2 = coefficient * PNR2
# 画图（注意：图的横纵坐标是从左上角开始的而不是想象中的左上角）
# sns.heatmap(PNR1, cmap='Reds')
# plt.savefig(graph_results_dir + emb_method_name1 +'_'+ emb_method_name2 + '_' +'bin_' + str(binNum) + "_PNR1.jpg")
# plt.show()
# sns.heatmap(PNR2, cmap='Reds')
# plt.savefig(graph_results_dir + emb_method_name1 +'_'+ emb_method_name2 + '_'+ 'bin_' + str(binNum) + "_PNR2.jpg")
# plt.show()
# plt.matshow(PNR1) # 好丑
# plt.show()
# 保存（exist_raster_grids、nonexist_raster_grids、PNR1、PNR2）
save_ndarray_to_mat(exist_raster_grids, 'exist_raster_grids',
graph_results_dir, graph_name, emb_method_name1,
emb_method_name2, binNum)
save_ndarray_to_mat(nonexist_raster_grids, 'nonexist_raster_grids',
graph_results_dir, graph_name, emb_method_name1,
emb_method_name2, binNum)
save_ndarray_to_mat(PNR1, 'PNR1', graph_results_dir, graph_name,
emb_method_name1, emb_method_name2, binNum)
save_ndarray_to_mat(PNR2, 'PNR2', graph_results_dir, graph_name,
emb_method_name1, emb_method_name2, binNum)
# PNR调整分数(只调整non-existing link的部分)
nonexist_scores_PNR_list = transfer_scores_PNR(
scores_matrix_one_norm=scores_matrix_one_norm,
scores_matrix_two_norm=scores_matrix_two_norm,
train_binary=train_binary,
PNR=PNR2,
interval=interval,
binNum=binNum)
# weighted hybird方法的分数，0.5均权直接相加
scores_matrix_hybrid_norm = 0.5 * scores_matrix_one_norm + 0.5 * scores_matrix_two_norm
nonexist_scores_hybrid_list = (np.array(
scores_matrix_hybrid_norm[nonexist_binary > 0], dtype=float))[0]
# 评估evaluation
graph_test_path = get_testset_path(base_dir=all_file_dir,
graph_name=graph_name)
test_binary = get_test_matrix_binary(graph_test_path=graph_test_path, N=N)
L_full = int(np.sum(test_binary))
L_array = np.array([
int(L_full / 20),
int(L_full / 10),
int(L_full / 5),
int(L_full / 2), L_full
])
del scores_matrix_one_norm, scores_matrix_two_norm, exist_scores_one_list, exist_scores_two_list, scores_matrix_hybrid_norm
gc.collect()
AP_PNR, AUC_PNR, Precision_PNR, Recall_PNR, F1score_PNR=\
evaluators(train_binary=train_binary,
test_binary=test_binary,
scores_list=nonexist_scores_PNR_list,
L_array=L_array)
AP_method1, AUC_method1, Precision_method1, Recall_method1, F1score_method1=\
evaluators(train_binary=train_binary,
test_binary=test_binary,
scores_list=nonexist_scores_one_list,
L_array=L_array)
AP_method2, AUC_method2, Precision_method2, Recall_method2, F1score_method2=\
evaluators(train_binary=train_binary,
test_binary=test_binary,
scores_list=nonexist_scores_two_list,
L_array=L_array)
AP_weighted, AUC_weighted, Precision_weighted, Recall_weighted, F1score_weighted=\
evaluators(train_binary=train_binary,
test_binary=test_binary,
scores_list=nonexist_scores_hybrid_list,
L_array=L_array)
print('AP_PNR: ' + str(AP_PNR))
print('AP_method1: ' + str(AP_method1))
print('AP_method2: ' + str(AP_method2))
print('AP_weighted: ' + str(AP_weighted))
print('\n')
print('AUC_PNR: ' + str(AUC_PNR))
print('AUC_method1: ' + str(AUC_method1))
print('AUC_method2: ' + str(AUC_method2))
print('AUC_weighted: ' + str(AUC_weighted))
print('\n')
print('Precision_PNR: ' + str(Precision_PNR))
print('Precision_method1: ' + str(Precision_method1))
print('Precision_method2: ' + str(Precision_method2))
print('Precision_weighted: ' + str(Precision_weighted))
print('\n')
print('Recall_PNR: ' + str(Recall_PNR))
print('Recall_method1: ' + str(Recall_method1))
print('Recall_method2: ' + str(Recall_method2))
print('Recall_weighted: ' + str(Recall_weighted))
print('\n')
print('F1score_PNR: ' + str(F1score_PNR))
print('F1score_method1: ' + str(F1score_method1))
print('F1score_method2: ' + str(F1score_method2))
print('F1score_weighted: ' + str(F1score_weighted))
print('\n')
write_to_excel(graph_name, emb_method_name1, emb_method_name2,
Precision_PNR, Precision_method1, Precision_method2,
Precision_weighted, Recall_PNR, Recall_method1,
Recall_method2, Recall_weighted, F1score_PNR,
F1score_method1, F1score_method2, F1score_weighted, AP_PNR,
AP_method1, AP_method2, AP_weighted, AUC_PNR, AUC_method1,
AUC_method2, AUC_weighted)
time_end = time.time()
print("time span: " + str((time_end - time_start) / 60.00) + " mins")
# facebook_combined：bin=5, 1.5分钟
# facebook_combined：cn和pearson\aa和cn花了3.5分钟
# facebook_combined：graphdistance和cn花了11分钟
# facebook_combined: graphdistance和cn的PNE矩阵为全0
# facebooke_combined: attentionwalk和prone花了7.5分钟
# facebooke_combined: 有rootedpagerank的效果都很差;
# arope比PNR好一点，SDNE和PRUE很差很差；drne和graph2gauss也是极差的但是PNR融合后表现极好；
# blogcatalog:aa和ja花了3小时
# （path based--katz和graphdistance都十分慢，neighbor based和rank based很快）
# google 15000 nodes: 2.5小时
print(
'--------------------------------------------------------------------------------'
)
pass
import utils as ut
# Read the graphs
ii = ut.read_graph("ii")
sgi = ut.read_graph("sgi")
ui = ut.read_graph("ui")
# Compute global measures
ut.graph_global_measures(ii, "ii")
ut.graph_global_measures(sgi, "sgi")
ut.graph_global_measures(ui, "ui")
# Compute LCC global measures
ut.graph_global_measures(ii, "ii", True)
ut.graph_global_measures(sgi, "sgi", True)
ut.graph_global_measures(ui, "ui", True)
# Visualize graph
ut.viz_graph(sgi, 'sgi')
ut.viz_graph(ii, 'ii', cc=True)
ut.viz_graph(ui, 'ui', cc=True)
import utils as ut
### read data
ii = ut.read_graph("ii")
ui = ut.read_graph("ui")
### Hypergeom Test
ii_lou = map(lambda x: ut.hypergeom_test(ii, x),
filter(ut.check_length_mod, ut.louvain(ii)))
ii_mcl = map(lambda x: ut.hypergeom_test(ii, x),
filter(ut.check_length_mod, ut.mcl(ii)))
ui_lou = map(lambda x: ut.hypergeom_test(ui, x),
filter(ut.check_length_mod, ut.louvain(ui)))
ui_mcl = map(lambda x: ut.hypergeom_test(ui, x),
filter(ut.check_length_mod, ut.mcl(ui)))
# Create tables
ii_mod = ut.create_table("ii_mod", list(ii_lou), list(ii_mcl))
ui_mod = ut.create_table("ui_mod", list(ui_lou), list(ui_mcl))
# Visualize clusters
ut.louvain(ii, 'ii', viz=True)
ut.louvain(ui, 'ui', viz=True)
ut.mcl(ii, viz=True)
ut.mcl(ui, viz=True)
def publish(input):
g = utils.read_graph(input)
describe_dataset(g)
write_rdf_files(g)
write_dump(g)
def auto_overlap(prex=None,
graph_name=None,
emb_method_name1=None,
emb_method_name2=None,
binNum=None):
time_start = time.time()
print('----------------------------------------------------------')
print("dataset: " + graph_name + '\n' + "baselines:" + emb_method_name1 +
"," + emb_method_name2)
results_base_dir = 'D:\hybridrec//results//'
all_file_dir = 'D:\hybridrec\dataset\split_train_test//' + prex
results_dir = 'D:\hybridrec/results//' + prex
graph_results_dir = results_dir + graph_name + '//'
path_scores_method1 = results_base_dir + prex + graph_name + "//" + graph_name + "_" + emb_method_name1 + "_scores.mat"
path_scores_method2 = results_base_dir + prex + graph_name + "//" + graph_name + "_" + emb_method_name2 + "_scores.mat"
if not (os.path.exists(path_scores_method1)
and os.path.exists(path_scores_method2)):
print("dataset: " + graph_name + '----' + "baselines:" +
emb_method_name1 + "," + emb_method_name2 + ': 分数未完全计算')
if os.path.exists(path_scores_method1) and os.path.exists(
path_scores_method2):
# 获取归一化分数
scores_matrix_one_dict = (loadmat(path_scores_method1))
scores_matrix_two_dict = (loadmat(path_scores_method2))
scores_matrix_one = scores_matrix_one_dict['scores']
scores_matrix_two = scores_matrix_two_dict['scores']
if emb_method_name1 not in all_embedding_methods:
scores_matrix_one = csr_matrix(np.triu(scores_matrix_one.A,
k=1)) # k=1表示不包括对角线
if emb_method_name2 not in all_embedding_methods:
scores_matrix_two = csr_matrix(np.triu(scores_matrix_two.A, k=1))
scores_matrix_one_norm = normalize_matrix(
csr_matrix1=csr_matrix(scores_matrix_one)) # 去掉传参的csr_matrix()则会
scores_matrix_two_norm = normalize_matrix(
csr_matrix1=csr_matrix(scores_matrix_two))
# 获取train_binary和test_binary
graph_train_path = get_trainset_path(base_dir=all_file_dir,
graph_name=graph_name,
connected_pattern='undirected',
from_zeros_one='0')
graph_test_path = get_testset_path(base_dir=all_file_dir,
graph_name=graph_name)
G = read_graph(weighted=0, input=graph_train_path, directed=0)
train_binary = csr_matrix(nx.convert_matrix.to_scipy_sparse_matrix(G))
train_binary = csr_matrix(np.triu(train_binary.A, k=1))
test_binary = get_test_matrix_binary(graph_test_path=graph_test_path,
N=train_binary.shape[0])
# 读取plus的原始分数（未归一化）
plus_scores_name = 'plus_' + graph_name + '_' + emb_method_name1 + '_' + emb_method_name2 + '_scores.mat'
plus_scores_path = graph_results_dir + plus_scores_name
scores_matrix_plus_dict = (loadmat(plus_scores_path))
scores_matrix_plus = scores_matrix_plus_dict['scores']
# 读取multiply的原始分数（未归一化）
multiply_scores_name = 'multiply_' + graph_name + '_' + emb_method_name1 + '_' + emb_method_name2 + '_scores.mat'
multiply_scores_path = graph_results_dir + multiply_scores_name
scores_matrix_multiply_dict = (loadmat(multiply_scores_path))
scores_matrix_multiply = scores_matrix_multiply_dict['scores']
# 读取MLP的原始分数（未归一化）
mlp_scores_name = 'mlp_' + graph_name + '_' + emb_method_name1 + '_' + emb_method_name2 + '_scores.mat'
mlp_scores_path = graph_results_dir + mlp_scores_name
scores_matrix_mlp_dict = (loadmat(mlp_scores_path))
scores_matrix_mlp = scores_matrix_mlp_dict['scores']
# 归一化hybrid分数
scores_matrix_plus_norm = normalize_matrix(
csr_matrix1=scores_matrix_plus)
scores_matrix_multiply_norm = normalize_matrix(
csr_matrix1=scores_matrix_multiply)
scores_matrix_mlp_norm = normalize_matrix(
csr_matrix1=scores_matrix_mlp)
# 计算plus、multiply、mlp、PNR的rasterization grids
mlp_path = results_base_dir + prex + graph_name + "//" + "mlp_" + graph_name + "_" + emb_method_name1 + "_" + emb_method_name2 + "_50_count.mat"
mlp_dict = (loadmat(mlp_path))
mlp_raster_grids = mlp_dict["count"]
multiply_path = results_base_dir + prex + graph_name + "//" + "multiply_" + graph_name + "_" + emb_method_name1 + "_" + emb_method_name2 + "_50_count.mat"
multiply_dict = (loadmat(multiply_path))
multiply_raster_grids = multiply_dict["count"]
plus_path = results_base_dir + prex + graph_name + "//" + "plus_" + graph_name + "_" + emb_method_name1 + "_" + emb_method_name2 + "_50_count.mat"
plus_dict = (loadmat(plus_path))
plus_raster_grids = plus_dict["count"]
# plus_raster_grids = rasterization_grids(binNum=binNum,
# train_binary=train_binary,
# scores_matrix_DNN=scores_matrix_plus_norm,
# scores_matrix_one_norm=scores_matrix_one_norm,
# scores_matrix_two_norm=scores_matrix_two_norm)
# multiply_raster_grids = rasterization_grids(binNum=binNum,
# train_binary=train_binary,
# scores_matrix_DNN=scores_matrix_multiply_norm,
# scores_matrix_one_norm=scores_matrix_one_norm,
# scores_matrix_two_norm=scores_matrix_two_norm)
# mlp_raster_grids = rasterization_grids(binNum=binNum,
# train_binary=train_binary,
# scores_matrix_DNN=scores_matrix_mlp_norm,
# scores_matrix_one_norm=scores_matrix_one_norm,
# scores_matrix_two_norm=scores_matrix_two_norm)
PNR_path = results_base_dir + prex + graph_name + "//" + "PNR2_" + graph_name + "_" + emb_method_name1 + "_" + emb_method_name2 + "_50_count.mat"
PNR_dict = (loadmat(PNR_path))
PNR_raster_grids = PNR_dict["count"]
exist_binary = csr_matrix(np.triu(train_binary.A, k=1)) # k=1表示不包括对角线
nonexist_binary = csr_matrix(
np.triu(np.ones(exist_binary.shape), k=1) - exist_binary.A)
# 获取plus的nonexist_scores_list
nonexist_scores_plus_list = transfer_scores_PNR(
scores_matrix_one_norm=scores_matrix_one_norm,
scores_matrix_two_norm=scores_matrix_two_norm,
train_binary=train_binary,
PNR=plus_raster_grids,
interval=float((1.0 - 0.0) / binNum),
binNum=binNum)
# 获取multiply的nonexist_scores_list
nonexist_scores_multiply_list = transfer_scores_PNR(
scores_matrix_one_norm=scores_matrix_one_norm,
scores_matrix_two_norm=scores_matrix_two_norm,
train_binary=train_binary,
PNR=multiply_raster_grids,
interval=float((1.0 - 0.0) / binNum),
binNum=binNum)
# 获取mlp的nonexist_scores_list
nonexist_scores_mlp_list = transfer_scores_PNR(
scores_matrix_one_norm=scores_matrix_one_norm,
scores_matrix_two_norm=scores_matrix_two_norm,
train_binary=train_binary,
PNR=mlp_raster_grids,
interval=float((1.0 - 0.0) / binNum),
binNum=binNum)
# 获取PNR的nonexist_scores_list
nonexist_scores_PNR_list = transfer_scores_PNR(
scores_matrix_one_norm=scores_matrix_one_norm,
scores_matrix_two_norm=scores_matrix_two_norm,
train_binary=train_binary,
PNR=PNR_raster_grids,
interval=float((1.0 - 0.0) / binNum),
binNum=binNum)
# 获取阈值
E_test = np.sum(test_binary.A)
thresold_plus = get_list_thresold(nonexist_scores_plus_list, L=E_test)
thresold_multiply = get_list_thresold(nonexist_scores_multiply_list,
L=E_test)
thresold_mlp = get_list_thresold(nonexist_scores_mlp_list, L=E_test)
thresold_PNR = get_list_thresold(nonexist_scores_PNR_list, L=E_test)
# 这里的trick, L=1/2 |E_test|!!!!!!!!!!!
# thresold_plus = int(thresold_plus*0.5)
# thresold_multiply = int(thresold_multiply * 0.5)
# thresold_mlp = int(thresold_mlp * 0.5)
# thresold_PNR = int(thresold_PNR * 0.5)
# 修改grids
plus_raster_grids = plus_raster_grids.A
multiply_raster_grids = multiply_raster_grids.A
mlp_raster_grids = mlp_raster_grids.A
PNR_raster_grids = PNR_raster_grids.A
# np.where(plus_raster_grids > thresold_plus, plus_raster_grids, 0)
# np.where(multiply_raster_grids > thresold_multiply, multiply_raster_grids, 0)
# np.where(mlp_raster_grids > thresold_mlp, mlp_raster_grids, 0)
# np.where(PNR_raster_grids > thresold_PNR, PNR_raster_grids, 0)
plus_raster_grids[plus_raster_grids <= thresold_plus] = 0.0
multiply_raster_grids[multiply_raster_grids <= thresold_multiply] = 0.0
mlp_raster_grids[mlp_raster_grids <= thresold_mlp] = 0.0
PNR_raster_grids[PNR_raster_grids <= thresold_PNR] = 0.0
plus_raster_grids[plus_raster_grids >= thresold_plus] = 1.0
multiply_raster_grids[multiply_raster_grids >= thresold_multiply] = 1.0
mlp_raster_grids[mlp_raster_grids >= thresold_mlp] = 1.0
PNR_raster_grids[PNR_raster_grids >= thresold_PNR] = 1.0
# 画图
# colors = ['OrangeRed', 'darkseagreen', 'dodgerblue', 'blueviolet']
colors = ['Red', 'green', 'blue', 'purple']
result = np.float32(PNR_raster_grids)
result = cv2.GaussianBlur(result, (5, 5),
0) # (5, 5)表示高斯矩阵的长与宽都是5，标准差取0
title = graph_name + '-PNR-' + emb_method_name1 + '-' + emb_method_name2
plot_contourf_overlap(result=result, title=title, color=colors[0])
result = np.float32(plus_raster_grids)
result = cv2.GaussianBlur(result, (5, 5),
0) # (5, 5)表示高斯矩阵的长与宽都是5，标准差取0
title = graph_name + '-plus-' + emb_method_name1 + '-' + emb_method_name2
plot_contourf_overlap(result=result, title=title, color=colors[1])
result = np.float32(multiply_raster_grids)
result = cv2.GaussianBlur(result, (5, 5),
0) # (5, 5)表示高斯矩阵的长与宽都是5，标准差取0
title = graph_name + '-multiply-' + emb_method_name1 + '-' + emb_method_name2
plot_contourf_overlap(result=result, title=title, color=colors[2])
result = np.float32(mlp_raster_grids)
result = cv2.GaussianBlur(result, (5, 5),
0) # (5, 5)表示高斯矩阵的长与宽都是5，标准差取0
title = graph_name + '-mlp-' + emb_method_name1 + '-' + emb_method_name2
plot_contourf_overlap(result=result, title=title, color=colors[3])
# # 计算plus的rasterization grids
# plus_raster_grids = rasterization_grids(binNum=plus_binNum,
# train_binary=train_binary,
# scores_matrix_DNN=scores_matrix_plus_norm,
# scores_matrix_one_norm=scores_matrix_one_norm,
# scores_matrix_two_norm=scores_matrix_two_norm)
# # plus_raster_grids = np.log10(plus_raster_grids) # 出现-inf而报错
# plus_raster_grids = normalize_matrix_full(csr_matrix1=csr_matrix(plus_raster_grids))
# plus_raster_grids = better_show_grids(csr_matrix1=plus_raster_grids)
#
# source = np.float32(plus_raster_grids.A)
# result = cv2.GaussianBlur(source, (5, 5), 0)
# title = graph_name + '-' + 'plus' +'-' + emb_method_name1 + '-' + emb_method_name2
# plot_contourf(result=result, title=title, binNum=10)
#
time_end = time.time()
print("It takes : " + str((time_end - time_start) / 60.0) + " mins.")
pass
assert len(
datasets
) == 2, "Please input datasets pair!" # Assert whether the dataset input is a pair
assert datasets[0] == datasets[
1], "Unkown datasets pair!" # Assert the dataset input is same
params.node_num = get_node_num(params)
## Get the initial embedding matrix
if params.profile_feature:
src_emb = load_embeddings(params, True)
tgt_emb = load_embeddings(params, False)
else:
src_emb, tgt_emb = initialize_feature(params)
## Read original graph
G_source_original, G_target_original = read_graph(params)
## Assign the original graph to G_source and G_target as the current graph
G_source = G_source_original
G_target = G_target_original
G_source_edge_num = nx.number_of_edges(G_source)
G_target_edge_num = nx.number_of_edges(G_target)
print(
"=====> number of source grpah edge: %d, number of target grpah edge: %d" %
(G_source_edge_num, G_target_edge_num))
A_source = nx.adjacency_matrix(G_source)
A_target = nx.adjacency_matrix(G_target)
## Get the adjacency matrix of the current graph and normalize it to facilitate graph convolution
A_source_norm, A_target_norm = adjacency_matrix_normalize(
params, G_source, G_target)
## Build model
model = build_model(params)
# find the nearest vertice would suffice
heapq.heappush(h, (dists[v], curr_node, v))
# queue is empty, exit while loop
if not h:
break
# promote a vertice from trial tree to shortest path tree
_, _ , curr_node = heapq.heappop(h)
# use the dst only
return dists[dst]
if __name__ == '__main__':
g = utils.read_graph()
# res = run(g, SRC, DST)
# print 'Your answer:', res
# print 'Model answer:', nx.shortest_path_length(g, SRC, DST, 'weight')
n = g.number_of_nodes()
for _ in range(N_TESTS):
# make a copy because calling run() will change 'queued' field of edge
h = g.copy()
src = random.randint(0, n - 1)
dst = random.randint(0, n - 1)
try:
res1 = run(h, src, dst)
res2 = nx.shortest_path_length(h, src, dst, 'weight')
assert(res1==res2)
def auto_DNN(prex=None,
graph_name=None,
emb_method_name1=None,
emb_method_name2=None,
model_name=None,
DNN_binNum=None):
print('----------------------------------------------------------')
print("dataset: " + graph_name + '\n' + "baselines:" + emb_method_name1 +
"," + emb_method_name2)
results_base_dir = 'D:\hybridrec//results//'
all_file_dir = 'D:\hybridrec\dataset\split_train_test//' + prex
results_dir = 'D:\hybridrec/results//' + prex
graph_results_dir = results_dir + graph_name + '//'
# （facebook_combined的规律：ratio越小则正负样本的预测准确率越高，花的时间也越少）
ratio = 1 # 负样本的总数是正样 本的ratio倍 # 改这里
path_scores_method1 = results_base_dir + prex + graph_name + "//" + graph_name + "_" + emb_method_name1 + "_scores.mat"
path_scores_method2 = results_base_dir + prex + graph_name + "//" + graph_name + "_" + emb_method_name2 + "_scores.mat"
# Initialize the model，改这里
# hidden_layer_sizes=(10, 20, 10)：三个隐藏层，分别10、20、10个神经元
if model_name == "mlp":
model = MLPClassifier(hidden_layer_sizes=(10, 20),
activation='relu',
solver='adam',
max_iter=200,
alpha=0.01,
batch_size=256,
learning_rate='constant',
learning_rate_init=0.001,
shuffle=False,
random_state=2020,
early_stopping=True,
validation_fraction=0.2,
beta_1=0.9,
beta_2=0.999,
epsilon=1e-08,
n_iter_no_change=10)
pass
if model_name == "svm":
model = SVC(C=5, random_state=42) # 出问题了
pass
if model_name == "lr":
model = LogisticRegression(C=5,
penalty='l1',
tol=1e-6,
random_state=42) # penalty 有l1和l2
pass
if model_name == "lgbm":
model = LGBMClassifier(num_leaves=31,
learning_rate=0.1,
n_estimators=64,
random_state=42,
n_jobs=-1)
pass
if model_name == "xgb":
model = XGBClassifier(max_depth=5,
learning_rate=0.1,
n_jobs=-1,
nthread=-1,
gamma=0.06,
min_child_weight=5,
subsample=1,
colsample_bytree=0.9,
reg_alpha=0,
reg_lambda=0.5,
random_state=42)
pass
if model_name == "ld":
model = LinearDiscriminantAnalysis(solver='lsqr')
pass
if model_name == "rf":
model = RandomForestClassifier(n_estimators=50,
max_depth=20,
min_samples_split=2,
min_samples_leaf=5,
max_features="log2",
random_state=12)
pass
if not (os.path.exists(path_scores_method1)
and os.path.exists(path_scores_method2)):
print("dataset: " + graph_name + '----' + "baselines:" +
emb_method_name1 + "," + emb_method_name2 + ': 分数未完全计算')
if os.path.exists(path_scores_method1) and os.path.exists(
path_scores_method2):
# 获取归一化分数
scores_matrix_one_dict = (loadmat(path_scores_method1))
scores_matrix_two_dict = (loadmat(path_scores_method2))
scores_matrix_one = scores_matrix_one_dict['scores']
scores_matrix_two = scores_matrix_two_dict['scores']
if emb_method_name1 not in all_embedding_methods:
scores_matrix_one = csr_matrix(np.triu(scores_matrix_one.A,
k=1)) # k=1表示不包括对角线
if emb_method_name2 not in all_embedding_methods:
scores_matrix_two = csr_matrix(np.triu(scores_matrix_two.A, k=1))
scores_matrix_one_norm = normalize_matrix(
csr_matrix1=csr_matrix(scores_matrix_one))
scores_matrix_two_norm = normalize_matrix(
csr_matrix1=csr_matrix(scores_matrix_two))
# 获取train_binary和test_binary
graph_train_path = get_trainset_path(base_dir=all_file_dir,
graph_name=graph_name,
connected_pattern='undirected',
from_zeros_one='0')
graph_test_path = get_testset_path(base_dir=all_file_dir,
graph_name=graph_name)
G = read_graph(weighted=0, input=graph_train_path, directed=0)
train_binary = csr_matrix(nx.convert_matrix.to_scipy_sparse_matrix(G))
train_binary = csr_matrix(np.triu(train_binary.A, k=1))
test_binary = get_test_matrix_binary(graph_test_path=graph_test_path,
N=train_binary.shape[0])
del scores_matrix_one, scores_matrix_two
gc.collect()
# 获取正样本的分数
exist_binary = csr_matrix(np.triu(train_binary.A, k=1)) # k=1表示不包括对角线
exist_scores_one_list = (np.array(
scores_matrix_one_norm[exist_binary > 0], dtype=float))[0]
exist_scores_two_list = (np.array(
scores_matrix_two_norm[exist_binary > 0], dtype=float))[0]
# 构建测试样本（正样本+负样本）
X_train_1 = (np.array([exist_scores_one_list,
exist_scores_two_list])).T
X_train_0 = negative_samples(
train_binary=train_binary,
test_binary=test_binary,
scores_matrix_one_norm=scores_matrix_one_norm,
scores_matrix_two_norm=scores_matrix_two_norm,
ratio=ratio)
Y_train_1 = np.random.randint(1, 2, X_train_1.shape[0])
Y_train_0 = np.random.randint(0, 1, X_train_0.shape[0])
X_train = np.vstack((np.array(X_train_1), np.array(X_train_0)))
Y_train = (np.hstack((np.array(Y_train_1), np.array(Y_train_0)))).T
time_start = time.time()
# 模型训练
model.fit(X_train, Y_train)
# 模型预测
preds_0 = model.predict(X_train_0)
preds_1 = model.predict(X_train_1)
print(np.sum(preds_0))
print(np.sum(preds_1))
preds_0_proba = model.predict_proba(X_train_0)
preds_1_proba = model.predict_proba(X_train_1)
# 模型预测
scores_matrix_DNN = predicted_scores_DNN(
model=model,
train_binary=train_binary,
test_binary=test_binary,
scores_matrix_one_norm=scores_matrix_one_norm,
scores_matrix_two_norm=scores_matrix_two_norm)
save_DNN_hybrid_scores(scores_matrix_DNN=scores_matrix_DNN,
method1=emb_method_name1,
method2=emb_method_name2,
graph_results_dir=graph_results_dir,
dataset_name=graph_name,
model_name=model_name)
scores_matrix_DNN_norm = normalize_matrix(
csr_matrix1=scores_matrix_DNN)
# 计算DNN的rasterization grids
DNN_raster_grids = rasterization_grids(
binNum=DNN_binNum,
train_binary=train_binary,
scores_matrix_DNN=scores_matrix_DNN_norm,
scores_matrix_one_norm=scores_matrix_one_norm,
scores_matrix_two_norm=scores_matrix_two_norm)
# DNN_raster_grids = np.log10(DNN_raster_grids) # 出现-inf而报错
DNN_raster_grids = normalize_matrix_full(
csr_matrix1=csr_matrix(DNN_raster_grids))
DNN_raster_grids = better_show_grids(csr_matrix1=DNN_raster_grids)
save_DNN_raster_scores(rastser_grids=DNN_raster_grids,
method1=emb_method_name1,
method2=emb_method_name2,
graph_results_dir=graph_results_dir,
dataset_name=graph_name,
model_name=model_name,
DNN_binNum=DNN_binNum)
source = np.float32(DNN_raster_grids.A)
result = cv2.GaussianBlur(source, (5, 5), 0)
title = graph_name + '-' + model_name + '-' + emb_method_name1 + '-' + emb_method_name2
plot_contourf(result=result, title=title, binNum=10)
# 读取PNR grids
PNR_path = results_base_dir + prex + graph_name + "//" + "PNR1_" + graph_name + "_" + emb_method_name1 + "_" + emb_method_name2 + "_50_count.mat"
if is_excel_file_exist(PNR_path):
PNR_dict = (loadmat(PNR_path))
PNR_matrix = PNR_dict["count"]
PNR_matrix = better_show_grids(csr_matrix1=PNR_matrix)
source = np.float32(PNR_matrix.A)
result = cv2.GaussianBlur(source, (5, 5),
0) #(5, 5)表示高斯矩阵的长与宽都是5，标准差取0
title = graph_name + '-PNR-' + emb_method_name1 + '-' + emb_method_name2
plot_contourf(result=result, title=title, binNum=10)
# 评估DNN
exist_binary = csr_matrix(np.triu(train_binary.A, k=1)) # k=1表示不包括对角线
nonexist_binary = csr_matrix(
np.triu(np.ones(exist_binary.shape), k=1) - exist_binary.A)
nonexist_scores_DNN_list = (np.array(
scores_matrix_DNN[nonexist_binary > 0], dtype=float))[0]
L_full = int(np.sum(test_binary))
L_array = np.array([
int(L_full / 20),
int(L_full / 10),
int(L_full / 5),
int(L_full / 2), L_full
])
AP_DNN, AUC_DNN, Precision_DNN, Recall_DNN, F1score_DNN = \
evaluators(train_binary=train_binary,
test_binary=test_binary,
scores_list=nonexist_scores_DNN_list,
L_array=L_array)
# print('AP_DNN: ' + str(AP_DNN))
# print('\n')
# print('AUC_DNN: ' + str(AUC_DNN))
# print('\n')
# print('Precision_DNN: ' + str(Precision_DNN))
# print('\n')
# print('Recall_DNN: ' + str(Recall_DNN))
# print('\n')
# print('F1score_DNN: ' + str(F1score_DNN))
# print('\n')
# 把precision、recall、F1score、AP写入excel文件
DNN_write_to_excel(DL_name=model_name,
dataset_name=graph_name,
method1=emb_method_name1,
method2=emb_method_name2,
precision_DL=Precision_DNN,
recall_DL=Recall_DNN,
F1score_DL=F1score_DNN,
AP_DL=AP_DNN)
time_end = time.time()
print("It takes : " + str((time_end - time_start) / 60.0) + " mins.")
pass
# -*- coding:utf-8 -*-
import sys
import os
import networkx as nx
import matplotlib.pyplot as plt
lib = os.path.join(os.path.abspath('.'), 'lib')
sys.path.insert(0, lib)
import utils
# USER:saicologic
user_id = 1502
# G = nx.Graph()
G = utils.read_graph(user_id)
# undirected graph
# 次数中心性
utils.show_ranking(G, 'degree_centrality', nx.degree_centrality(G))
# 近接中心性
utils.show_ranking(G, 'closeness_centrality', nx.closeness_centrality(G))
# 媒介中心性
utils.show_ranking(G, 'betweenness_centrality', nx.betweenness_centrality(G))
# 媒介中心性(組)
utils.show_ranking(G, 'edge_betweenness_centrality', nx.edge_betweenness_centrality(G))
# Write on file the result
output_file(final_partitioning)
# THE RESULT OBTAINED WITH METIS
start_meth = time.time()
edge_cut , metis_partitioning = metis.part_graph(graphs_history[0], k)
end_meth = time.time()
m, s = divmod((end_meth - start_meth), 60)
enlapsed_time = "%d minutes and %f seconds" % (m, s)
print('the edge cut obtained with metis is ',edge_cut)
print('the time taken by metis was ', enlapsed_time)
parser = argparse.ArgumentParser(description='Partition the vertices of a graph in k roughly '
'equal partitions such that the number of edges connecting vertices in different partitions'
'is minimized')
parser.add_argument("k", help="The number of partitions", type = int)
group = parser.add_mutually_exclusive_group()
group.add_argument("-f", "--file", help="The file containing the graph to elaborate, if not specified a random graph is generated", type = str)
group.add_argument("-r", "--random", nargs = 2, metavar = ('DEGREE','N_NODES'), help="Generate a random graph with degree and number of nodes specified ",
type = int,default=[30,10000]) #default value for degree and number of nodes of the random generated graph
args = parser.parse_args()
if(args.file != None):
g = read_graph(args.file)
else:
g = random_graph(args.random[0],args.random[1])
k_way_partitioning(args.k,g)