def preprocess(name):
adj, features, labels = load_local_data(exp_name, IDF_THRESHOLD, name=name)
# Store original adjacency matrix (without diagonal entries) for later
adj_orig = adj
adj_orig = adj_orig - sp.dia_matrix(
(adj_orig.diagonal()[np.newaxis, :], [0]), shape=adj_orig.shape)
adj_orig.eliminate_zeros()
adj_train = gen_train_edges(adj)
adj = adj_train
# Some preprocessing
adj_norm = preprocess_graph(adj)
edge_labels = []
n_samples = len(labels)
for i in range(n_samples - 1):
for j in range(i + 1, n_samples):
if labels[i] == labels[j]:
edge_labels.append([i, j])
edge_labels = np.array(edge_labels)
adj_label = sp.coo_matrix((np.ones(edge_labels.shape[0]),
(edge_labels[:, 0], edge_labels[:, 1])),
shape=(features.shape[0], features.shape[0]),
dtype=np.float32)
pos_weight = float(adj_label.shape[0] * adj_label.shape[0] -
adj_label.sum()) / adj_label.sum()
norm = adj_label.shape[0] * adj_label.shape[0] / float(
(adj_label.shape[0] * adj_label.shape[0] - adj_label.nnz) * 2)
adj_label = adj_label + sp.eye(adj_label.shape[0])
adj_label = sparse_to_tuple(adj_label)
if FLAGS.is_sparse: # TODO to test
# features = sparse_to_tuple(features.tocoo())
# features_nonzero = features[1].shape[0]
features = features.todense() # TODO
else:
features = normalize_vectors(features)
# print("positive_label", len(edge_labels))
print('positive edge weight', pos_weight) # negative edges/pos edges
print('norm', norm) # negative edges/pos edges
return adj_norm, adj_label, features, pos_weight, norm, labels
def gae_for_na(name, rawfeature):
"""
train and evaluate disambiguation results for a specific name
:param name: author name
:return: evaluation results
"""
adj, features, labels = load_local_data(name=name, rawfeature=rawfeature)
# Store original adjacency matrix (without diagonal entries) for later
adj_orig = adj
adj_orig = adj_orig - sp.dia_matrix((adj_orig.diagonal()[np.newaxis, :], [0]), shape=adj_orig.shape)
adj_orig.eliminate_zeros()
adj_train = gen_train_edges(adj)
adj = adj_train
# Some preprocessing
adj_norm = preprocess_graph(adj)
num_nodes = adj.shape[0]
input_feature_dim = features.shape[1]
if FLAGS.is_sparse: # TODO to test
# features = sparse_to_tuple(features.tocoo())
# features_nonzero = features[1].shape[0]
features = features.todense() # TODO
else:
features = normalize_vectors(features)
# Define placeholders
placeholders = {
# 'features': tf.sparse_placeholder(tf.float32),
'features': tf.placeholder(tf.float32, shape=(None, input_feature_dim)),
'adj': tf.sparse_placeholder(tf.float32),
'adj_orig': tf.sparse_placeholder(tf.float32),
'dropout': tf.placeholder_with_default(0., shape=())
}
# Create model
model = None
if model_str == 'gcn_ae':
model = GCNModelAE(placeholders, input_feature_dim)
elif model_str == 'gcn_vae':
model = GCNModelVAE(placeholders, input_feature_dim, num_nodes)
pos_weight = float(adj.shape[0] * adj.shape[0] - adj.sum()) / adj.sum() # negative edges/pos edges
print('positive edge weight', pos_weight)
norm = adj.shape[0] * adj.shape[0] / float((adj.shape[0] * adj.shape[0] - adj.nnz) * 2)
# Optimizer
with tf.name_scope('optimizer'):
if model_str == 'gcn_ae':
opt = OptimizerAE(preds=model.reconstructions,
labels=tf.reshape(tf.sparse_tensor_to_dense(placeholders['adj_orig'],
validate_indices=False), [-1]),
pos_weight=pos_weight,
norm=norm)
elif model_str == 'gcn_vae':
opt = OptimizerVAE(preds=model.reconstructions,
labels=tf.reshape(tf.sparse_tensor_to_dense(placeholders['adj_orig'],
validate_indices=False), [-1]),
model=model, num_nodes=num_nodes,
pos_weight=pos_weight,
norm=norm)
# Initialize session
sess = tf.Session()
sess.run(tf.global_variables_initializer())
adj_label = adj_train + sp.eye(adj_train.shape[0])
adj_label = sparse_to_tuple(adj_label)
def get_embs():
feed_dict.update({placeholders['dropout']: 0})
emb = sess.run(model.z_mean, feed_dict=feed_dict) # z_mean is better
return emb
# Train model
for epoch in range(FLAGS.epochs):
t = time.time()
# Construct feed dictionary
feed_dict = construct_feed_dict(adj_norm, adj_label, features, placeholders)
feed_dict.update({placeholders['dropout']: FLAGS.dropout})
# Run single weight update
outs = sess.run([opt.opt_op, opt.cost, opt.accuracy],
feed_dict=feed_dict)
# Compute average loss
avg_cost = outs[1]
avg_accuracy = outs[2]
print("Epoch:", '%04d' % (epoch + 1), "train_loss=", "{:.5f}".format(avg_cost),
"train_acc=", "{:.5f}".format(avg_accuracy),
"time=", "{:.5f}".format(time.time() - t))
emb = get_embs()
n_clusters = len(set(labels))
emb_norm = normalize_vectors(emb)
clusters_pred = clustering(emb_norm, num_clusters=n_clusters)
prec, rec, f1 = pairwise_precision_recall_f1(clusters_pred, labels)
print('pairwise precision', '{:.5f}'.format(prec),
'recall', '{:.5f}'.format(rec),
'f1', '{:.5f}'.format(f1))
clusters_pred2 = clustering(features, num_clusters=n_clusters)
prec2, rec2, f12 = pairwise_precision_recall_f1(clusters_pred2, labels)
print('pairwise precision', '{:.5f}'.format(prec2),
'recall', '{:.5f}'.format(rec2),
'f1', '{:.5f}'.format(f12))
from sklearn.manifold import TSNE
features_new = TSNE(learning_rate=100).fit_transform(features)
emb_new = TSNE(learning_rate=100).fit_transform(emb_norm)
labels = np.array(labels) + 2
clusters_pred = np.array(clusters_pred) + 2
clusters_pred2 = np.array(clusters_pred2) + 2
if rawfeature == RAW_INTER_NAME:
tSNEAnanlyse(emb_norm, labels, join(settings.PIC_DIR, "FINALResult", "rawReature_%s_gae_final_raw.png" % (name)))
tSNEAnanlyse(features, labels, join(settings.PIC_DIR, "FINALResult", "rawReature_%s_gae_features_raw.png" % (name)))
elif rawfeature == ATTENTIONFEATURE:
tSNEAnanlyse(emb_new, labels, join(settings.PIC_DIR, "FINALResult", "rawReature_%s_gae_final.png" % (name)))
tSNEAnanlyse(features_new, labels, join(settings.PIC_DIR, "FINALResult", "rawReature_%s_gae_features.png" % (name)))
tSNEAnanlyse(emb_new, clusters_pred, join(settings.PIC_DIR, "FINALResult", "rawReature_%s_gae_final_clusterresult.png" % (name)))
tSNEAnanlyse(features_new, clusters_pred2, join(settings.PIC_DIR, "FINALResult", "rawReature_%s_gae_features_clusterresult.png" % (name)))
else:
tSNEAnanlyse(emb_norm, labels, join(settings.PIC_DIR, "FINALResult", "rawReature_%s_gae_final_triplet.png" % (name)))
tSNEAnanlyse(features, labels, join(settings.PIC_DIR, "FINALResult", "rawReature_%s_gae_features_triplet.png" % (name)))
return [prec, rec, f1], num_nodes, n_clusters
def gae_for_na(name, n_clusters): # 对一个具体的姓名预测其消歧结果 评估值[pre, rec, f1], 文档数， 聚类数
"""
train and evaluate disambiguation results for a specific name
:param name: author name
:return: evaluation results
"""
adj, features, pids = load_local_data(name=name) # 邻接矩阵(i,j)=1， 文档特征集(y, aid), 标记集 aid索引编号i; features与labels关于下标 一一对应
# Store original adjacency matrix (without diagonal entries) for later
adj_orig = adj
adj_orig = adj_orig - sp.dia_matrix((adj_orig.diagonal()[np.newaxis, :], [0]), shape=adj_orig.shape)
adj_orig.eliminate_zeros() # 在原邻接矩阵的基础上 去对角线元素 删除0
adj_train = gen_train_edges(adj) # 这里搞了半天 感觉就是 把adj的对角元素删了 用的csr_matrix 类型
adj = adj_train # 完整的邻接矩阵
# Some preprocessing
adj_norm = preprocess_graph(adj) # 标准化 矩阵 A^' 返回的是元组tuple 坐标(x,y), 值, 形状
num_nodes = adj.shape[0] # 节点数
input_feature_dim = features.shape[1] # 输入 特征 维数 [0]是个数
if FLAGS.is_sparse: # TODO to test
# features = sparse_to_tuple(features.tocoo())
# features_nonzero = features[1].shape[0]
features = features.todense() # TODO
else: # 条件 进入的是 这边
features = normalize_vectors(features)# 特征向量 标准化
# Define placeholders
# tf.placeholder 此函数可以理解为形参，用于定义过程，在执行的时候再赋具体的值 ?_?
placeholders = {
# 'features': tf.sparse_placeholder(tf.float32),
'features': tf.placeholder(tf.float32, shape=(None, input_feature_dim)),
'adj': tf.sparse_placeholder(tf.float32),# 为稀疏张量插入占位符，该稀疏张量将始终被提供
'adj_orig': tf.sparse_placeholder(tf.float32),
'dropout': tf.placeholder_with_default(0., shape=())# 该函数将返回一个张量。与 input 具有相同的类型。一个占位符张量，默认为 input 的占位符张量 (如果未送入)。
}
# Create model
model = None
if model_str == 'gcn_ae':
model = GCNModelAE(placeholders, input_feature_dim)
elif model_str == 'gcn_vae':# 使用的模型 是 gcn_vae
model = GCNModelVAE(placeholders, input_feature_dim, num_nodes)
pos_weight = float(adj.shape[0] * adj.shape[0] - adj.sum()) / adj.sum() # negative edges/pos edges
print('positive edge weight', pos_weight)# 负边/正边
norm = adj.shape[0] * adj.shape[0] / float((adj.shape[0] * adj.shape[0] - adj.nnz) * 2) # 矩阵中非零元素的数量nnz
# Optimizer
with tf.name_scope('optimizer'):
if model_str == 'gcn_ae':
opt = OptimizerAE(preds=model.reconstructions,
labels=tf.reshape(tf.sparse_tensor_to_dense(placeholders['adj_orig'],
validate_indices=False), [-1]),
pos_weight=pos_weight,
norm=norm)
elif model_str == 'gcn_vae':# 使用的模型 是 gcn_vae
opt = OptimizerVAE(preds=model.reconstructions,
labels=tf.reshape(tf.sparse_tensor_to_dense(placeholders['adj_orig'],
validate_indices=False), [-1]),
model=model, num_nodes=num_nodes,
pos_weight=pos_weight,
norm=norm)
# Initialize session
sess = tf.Session()
sess.run(tf.global_variables_initializer())
adj_label = adj_train + sp.eye(adj_train.shape[0])# sp.eye 单位矩阵 标记， 解码应该得到原矩阵
adj_label = sparse_to_tuple(adj_label)# 稀疏矩阵 -> 元组 (坐标， 值， 维度形状)
def get_embs():# 获得内部 嵌入z
feed_dict.update({placeholders['dropout']: 0})
emb = sess.run(model.z_mean, feed_dict=feed_dict) # z_mean is better
return emb
# Train model
for epoch in range(FLAGS.epochs):# 训练批次 epoch
t = time.time()
# Construct feed dictionary
feed_dict = construct_feed_dict(adj_norm, adj_label, features, placeholders)
feed_dict.update({placeholders['dropout']: FLAGS.dropout})
# Run single weight update
outs = sess.run([opt.opt_op, opt.cost, opt.accuracy],
feed_dict=feed_dict)
# Compute average loss
avg_cost = outs[1]
avg_accuracy = outs[2]
print("Epoch:", '%04d' % (epoch + 1), "train_loss=", "{:.5f}".format(avg_cost),
"train_acc=", "{:.5f}".format(avg_accuracy),
"time=", "{:.5f}".format(time.time() - t))
emb = get_embs() # 经过 编码器后 的 嵌入层
''' n_clusters = int(name_to_ncluster.get(name, 0))
n_clusters = len(set(labels))# 直接获得 真实的 聚类大小
if n_clusters == 1:
return None, None, None, None '''
#n_clusters = len(set(labels))# 直接获得 真实的 聚类大小
emb_norm = normalize_vectors(emb)# 标准化 嵌入层
clusters_pred = clustering(emb_norm, num_clusters=max(n_clusters,1)) # 聚类， 嵌入集 与 聚类大小
print('clusters_pred: ', clusters_pred)
ret = {}
for i, pred_label in enumerate(clusters_pred):
pred_label = str(pred_label)
if pred_label not in ret:
ret[pred_label] = []
ret[pred_label].append(pids[i])
rett = []
for pred_label in ret:
tmp = []
for pid in ret[pred_label]:
tmp.append(pid)
rett.append(tmp)
return rett
''' ret = {}
def gae_for_na(name, mode=0):
"""
train and evaluate disambiguation results for a specific name
:param name: author name
:return: evaluation results
:mode: 0-train 1-val
"""
pids, adj, features, labels = load_local_data(name=name)
# Store original adjacency matrix (without diagonal entries) for later
adj_orig = adj
adj_orig = adj_orig - sp.dia_matrix(
(adj_orig.diagonal()[np.newaxis, :], [0]), shape=adj_orig.shape)
adj_orig.eliminate_zeros()
adj_train = gen_train_edges(adj)
adj = adj_train
# Some preprocessing
adj_norm = preprocess_graph(adj)
num_nodes = adj.shape[0]
input_feature_dim = features.shape[1]
if FLAGS.is_sparse: # TODO to test
# features = sparse_to_tuple(features.tocoo())
# features_nonzero = features[1].shape[0]
features = features.todense() # TODO
else:
features = normalize_vectors(features)
# Define placeholders
placeholders = {
# 'features': tf.sparse_placeholder(tf.float32),
'features': tf.placeholder(tf.float32,
shape=(None, input_feature_dim)),
'adj': tf.sparse_placeholder(tf.float32),
'adj_orig': tf.sparse_placeholder(tf.float32),
'dropout': tf.placeholder_with_default(0., shape=())
}
# Create model
model = None
if model_str == 'gcn_ae':
model = GCNModelAE(placeholders, input_feature_dim)
elif model_str == 'gcn_vae':
model = GCNModelVAE(placeholders, input_feature_dim, num_nodes)
pos_weight = float(adj.shape[0] * adj.shape[0] -
adj.sum()) / adj.sum() # negative edges/pos edges
print('positive edge weight', pos_weight)
norm = adj.shape[0] * adj.shape[0] / float(
(adj.shape[0] * adj.shape[0] - adj.nnz) * 2)
# Optimizer
with tf.name_scope('optimizer'):
if model_str == 'gcn_ae':
opt = OptimizerAE(preds=model.reconstructions,
labels=tf.reshape(
tf.sparse_tensor_to_dense(
placeholders['adj_orig'],
validate_indices=False), [-1]),
pos_weight=pos_weight,
norm=norm)
elif model_str == 'gcn_vae':
opt = OptimizerVAE(preds=model.reconstructions,
labels=tf.reshape(
tf.sparse_tensor_to_dense(
placeholders['adj_orig'],
validate_indices=False), [-1]),
model=model,
num_nodes=num_nodes,
pos_weight=pos_weight,
norm=norm)
# Initialize session
sess = tf.Session()
sess.run(tf.global_variables_initializer())
adj_label = adj_train + sp.eye(adj_train.shape[0])
adj_label = sparse_to_tuple(adj_label)
def get_embs():
feed_dict.update({placeholders['dropout']: 0})
emb = sess.run(model.z_mean, feed_dict=feed_dict) # z_mean is better
return emb
# Train model
for epoch in range(FLAGS.epochs):
t = time.time()
# Construct feed dictionary
feed_dict = construct_feed_dict(adj_norm, adj_label, features,
placeholders)
feed_dict.update({placeholders['dropout']: FLAGS.dropout})
# Run single weight update
outs = sess.run([opt.opt_op, opt.cost, opt.accuracy],
feed_dict=feed_dict)
# Compute average loss
avg_cost = outs[1]
avg_accuracy = outs[2]
print("Epoch:", '%04d' % (epoch + 1), "train_loss=",
"{:.5f}".format(avg_cost), "train_acc=",
"{:.5f}".format(avg_accuracy), "time=",
"{:.5f}".format(time.time() - t))
emb = get_embs()
for idx, pid in enumerate(pids):
local_output[pid] = emb[idx]
# Train mode calcul F1
if not (mode == 2):
n_clusters = len(set(labels))
emb_norm = normalize_vectors(emb)
model = AgglomerativeClustering(n_clusters=n_clusters)
model.fit(emb_norm)
prec, rec, f1 = pairwise_precision_recall_f1(model.labels_, labels)
print('pairwise precision', '{:.5f}'.format(prec), 'recall',
'{:.5f}'.format(rec), 'f1', '{:.5f}'.format(f1))
return [prec, rec, f1], num_nodes, n_clusters
