gcn_rectification

model_zoo/gcn/README.md

@@ -36,9 +36,9 @@ sh run_process_data.sh [SRC_PATH] [DATASET_NAME]
 >> Launch
 ```
 #Generate dataset in mindrecord format for cora
-sh run_process_data.sh cora
+sh run_process_data.sh ./data cora
 #Generate dataset in mindrecord format for citeseer
-sh run_process_data.sh citeseer
+sh run_process_data.sh ./data citeseer
 ```
 
 ## Structure
@@ -110,4 +110,6 @@ Epoch: 0200 train_loss= 0.57948 train_acc= 0.96429 val_loss= 1.04753 val_acc= 0.
 Optimization Finished!
 Test set results: cost= 1.00983 accuracy= 0.81300 time= 0.39083
 ...
-```
\ No newline at end of file
+```
+
+

model_zoo/gcn/scripts/run_process_data.sh

@@ -40,7 +40,8 @@ else
 fi
 MINDRECORD_PATH=`pwd`/data_mr
 
-rm -f $MINDRECORD_PATH/*
+rm -f $MINDRECORD_PATH/$DATASET_NAME
+rm -f $MINDRECORD_PATH/$DATASET_NAME.db
 
 cd ../../../example/graph_to_mindrecord || exit
 

model_zoo/gcn/src/dataset.py

@@ -55,7 +55,7 @@ def get_adj_features_labels(data_dir):
     adj = adj + adj.T.multiply(adj.T > adj) + sp.eye(nodes_num)
     nor_adj = normalize_adj(adj)
     nor_adj = np.array(nor_adj.todense())
-    return nor_adj, features, labels_onehot
+    return nor_adj, features, labels_onehot, labels
 
 
 def get_mask(total, begin, end):

model_zoo/gcn/src/gcn.py

@@ -21,7 +21,7 @@ from mindspore.ops import functional as F
 from mindspore.ops import operations as P
 from mindspore import Tensor
 from mindspore.nn.layer.activation import get_activation
-from src.metrics import Loss, Accuracy
+from model_zoo.gcn.src.metrics import Loss, Accuracy
 
 
 def glorot(shape):

model_zoo/gcn/train.py

@@ -21,11 +21,25 @@ import time
 import argparse
 
 import numpy as np
+from matplotlib import pyplot as plt
+from matplotlib import animation
+from sklearn import manifold
 from mindspore import context
 
-from src.gcn import GCN, LossAccuracyWrapper, TrainNetWrapper
-from src.config import ConfigGCN
-from src.dataset import get_adj_features_labels, get_mask
+from model_zoo.gcn.src.gcn import GCN, LossAccuracyWrapper, TrainNetWrapper
+from model_zoo.gcn.src.config import ConfigGCN
+from model_zoo.gcn.src.dataset import get_adj_features_labels, get_mask
+
+
+def t_SNE(out_feature, dim):
+    t_sne = manifold.TSNE(n_components=dim, init='pca', random_state=0)
+    return t_sne.fit_transform(out_feature)
+
+
+def update_graph(i, data, scat, plot):
+    scat.set_offsets(data[i])
+    plt.title('t-SNE visualization of Epoch:{0}'.format(i))
+    return scat, plot
 
 
 def train():
@@ -36,28 +50,39 @@ def train():
     parser.add_argument('--train_nodes_num', type=int, default=140, help='Nodes numbers for training')
     parser.add_argument('--eval_nodes_num', type=int, default=500, help='Nodes numbers for evaluation')
     parser.add_argument('--test_nodes_num', type=int, default=1000, help='Nodes numbers for test')
+    parser.add_argument('--save_TSNE', type=bool, default=False, help='Whether to save t-SNE graph')
     args_opt = parser.parse_args()
 
     np.random.seed(args_opt.seed)
     context.set_context(mode=context.GRAPH_MODE,
                         device_target="Ascend", save_graphs=False)
     config = ConfigGCN()
-    adj, feature, label = get_adj_features_labels(args_opt.data_dir)
+    adj, feature, label_onehot, label = get_adj_features_labels(args_opt.data_dir)
 
-    nodes_num = label.shape[0]
+    nodes_num = label_onehot.shape[0]
     train_mask = get_mask(nodes_num, 0, args_opt.train_nodes_num)
     eval_mask = get_mask(nodes_num, args_opt.train_nodes_num, args_opt.train_nodes_num + args_opt.eval_nodes_num)
     test_mask = get_mask(nodes_num, nodes_num - args_opt.test_nodes_num, nodes_num)
 
-    class_num = label.shape[1]
+    class_num = label_onehot.shape[1]
     gcn_net = GCN(config, adj, feature, class_num)
     gcn_net.add_flags_recursive(fp16=True)
 
-    eval_net = LossAccuracyWrapper(gcn_net, label, eval_mask, config.weight_decay)
-    test_net = LossAccuracyWrapper(gcn_net, label, test_mask, config.weight_decay)
-    train_net = TrainNetWrapper(gcn_net, label, train_mask, config)
+    eval_net = LossAccuracyWrapper(gcn_net, label_onehot, eval_mask, config.weight_decay)
+    test_net = LossAccuracyWrapper(gcn_net, label_onehot, test_mask, config.weight_decay)
+    train_net = TrainNetWrapper(gcn_net, label_onehot, train_mask, config)
 
     loss_list = []
+
+    if args_opt.save_TSNE:
+        out_feature = gcn_net()
+        tsne_result = t_SNE(out_feature.asnumpy(), 2)
+        graph_data = []
+        graph_data.append(tsne_result)
+        fig = plt.figure()
+        scat = plt.scatter(tsne_result[:, 0], tsne_result[:, 1], s=2, c=label, cmap='rainbow')
+        plt.title('t-SNE visualization of Epoch:0', fontsize='large', fontweight='bold', verticalalignment='center')
+
     for epoch in range(config.epochs):
         t = time.time()
 
@@ -76,6 +101,11 @@ def train():
               "train_acc=", "{:.5f}".format(train_accuracy), "val_loss=", "{:.5f}".format(eval_loss),
               "val_acc=", "{:.5f}".format(eval_accuracy), "time=", "{:.5f}".format(time.time() - t))
 
+        if args_opt.save_TSNE:
+            out_feature = gcn_net()
+            tsne_result = t_SNE(out_feature.asnumpy(), 2)
+            graph_data.append(tsne_result)
+
         if epoch > config.early_stopping and loss_list[-1] > np.mean(loss_list[-(config.early_stopping+1):-1]):
             print("Early stopping...")
             break
@@ -88,6 +118,10 @@ def train():
     print("Test set results:", "loss=", "{:.5f}".format(test_loss),
           "accuracy=", "{:.5f}".format(test_accuracy), "time=", "{:.5f}".format(time.time() - t_test))
 
+    if args_opt.save_TSNE:
+        ani = animation.FuncAnimation(fig, update_graph, frames=range(config.epochs + 1), fargs=(graph_data, scat, plt))
+        ani.save('t-SNE_visualization.gif', writer='imagemagick')
+
 
 if __name__ == '__main__':
     train()

tests/st/gnn/gcn/src/config.py

-# Copyright 2020 Huawei Technologies Co., Ltd
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-# ============================================================================
-
-
-class ConfigGCN():
-    learning_rate = 0.01
-    epochs = 200
-    hidden1 = 16
-    dropout = 0.0
-    weight_decay = 5e-4
-    early_stopping = 10

tests/st/gnn/gcn/src/dataset.py

-# Copyright 2020 Huawei Technologies Co., Ltd
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-# ============================================================================
-
-import numpy as np
-import scipy.sparse as sp
-import mindspore.dataset as ds
-
-
-def normalize_adj(adj):
-    rowsum = np.array(adj.sum(1))
-    d_inv_sqrt = np.power(rowsum, -0.5).flatten()
-    d_inv_sqrt[np.isinf(d_inv_sqrt)] = 0.
-    d_mat_inv_sqrt = sp.diags(d_inv_sqrt)
-    return adj.dot(d_mat_inv_sqrt).transpose().dot(d_mat_inv_sqrt).tocoo()
-
-
-def get_adj_features_labels(data_dir):
-    g = ds.GraphData(data_dir)
-    nodes = g.get_all_nodes(0)
-    nodes_list = nodes.tolist()
-    row_tensor = g.get_node_feature(nodes_list, [1, 2])
-    features = row_tensor[0]
-    labels = row_tensor[1]
-
-    nodes_num = labels.shape[0]
-    class_num = labels.max() + 1
-    labels_onehot = np.eye(nodes_num, class_num)[labels].astype(np.float32)
-
-    neighbor = g.get_all_neighbors(nodes_list, 0)
-    node_map = {node_id: index for index, node_id in enumerate(nodes_list)}
-    adj = np.zeros([nodes_num, nodes_num], dtype=np.float32)
-    for index, value in np.ndenumerate(neighbor):
-        # The first column of neighbor is node_id, second column to last column are neighbors of the first column.
-        # So we only care index[1] > 1.
-        # If the node does not have that many neighbors, -1 is padded. So if value < 0, we will not deal with it.
-        if value >= 0 and index[1] > 0:
-            adj[node_map[neighbor[index[0], 0]], node_map[value]] = 1
-    adj = sp.coo_matrix(adj)
-    adj = adj + adj.T.multiply(adj.T > adj) + sp.eye(nodes_num)
-    nor_adj = normalize_adj(adj)
-    nor_adj = np.array(nor_adj.todense())
-    return nor_adj, features, labels_onehot
-
-
-def get_mask(total, begin, end):
-    mask = np.zeros([total]).astype(np.float32)
-    mask[begin:end] = 1
-    return mask

tests/st/gnn/gcn/src/gcn.py

-# Copyright 2020 Huawei Technologies Co., Ltd
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-# ============================================================================
-
-import numpy as np
-from mindspore import nn
-from mindspore.common.parameter import ParameterTuple
-from mindspore.ops import composite as C
-from mindspore.ops import functional as F
-from mindspore.ops import operations as P
-from mindspore import Tensor
-from mindspore.nn.layer.activation import get_activation
-from src.metrics import Loss, Accuracy
-
-
-def glorot(shape):
-    init_range = np.sqrt(6.0/(shape[0]+shape[1]))
-    initial = np.random.uniform(-init_range, init_range, shape).astype(np.float32)
-    return Tensor(initial)
-
-
-class GraphConvolution(nn.Cell):
-    def __init__(self,
-                 feature_in_dim,
-                 feature_out_dim,
-                 dropout_ratio=None,
-                 activation=None):
-        super(GraphConvolution, self).__init__()
-        self.in_dim = feature_in_dim
-        self.out_dim = feature_out_dim
-        self.weight_init = glorot([self.out_dim, self.in_dim])
-        self.fc = nn.Dense(self.in_dim,
-                           self.out_dim,
-                           weight_init=self.weight_init,
-                           has_bias=False)
-        self.dropout_ratio = dropout_ratio
-        if self.dropout_ratio is not None:
-            self.dropout = nn.Dropout(keep_prob=1-self.dropout_ratio)
-        self.dropout_flag = self.dropout_ratio is not None
-        self.activation = get_activation(activation)
-        self.activation_flag = self.activation is not None
-        self.matmul = P.MatMul()
-
-    def construct(self, adj, input_feature):
-        dropout = input_feature
-        if self.dropout_flag:
-            dropout = self.dropout(dropout)
-
-        fc = self.fc(dropout)
-        output_feature = self.matmul(adj, fc)
-
-        if self.activation_flag:
-            output_feature = self.activation(output_feature)
-        return output_feature
-
-
-class GCN(nn.Cell):
-    def __init__(self, config, adj, feature, output_dim):
-        super(GCN, self).__init__()
-        self.adj = Tensor(adj)
-        self.feature = Tensor(feature)
-        input_dim = feature.shape[1]
-        self.layer0 = GraphConvolution(input_dim, config.hidden1, activation="relu", dropout_ratio=config.dropout)
-        self.layer1 = GraphConvolution(config.hidden1, output_dim, dropout_ratio=None)
-
-    def construct(self):
-        output0 = self.layer0(self.adj, self.feature)
-        output1 = self.layer1(self.adj, output0)
-        return output1
-
-
-class LossAccuracyWrapper(nn.Cell):
-    def __init__(self, network, label, mask, weight_decay):
-        super(LossAccuracyWrapper, self).__init__()
-        self.network = network
-        self.loss = Loss(label, mask, weight_decay, network.trainable_params()[0])
-        self.accuracy = Accuracy(label, mask)
-
-    def construct(self):
-        preds = self.network()
-        loss = self.loss(preds)
-        accuracy = self.accuracy(preds)
-        return loss, accuracy
-
-
-class LossWrapper(nn.Cell):
-    def __init__(self, network, label, mask, weight_decay):
-        super(LossWrapper, self).__init__()
-        self.network = network
-        self.loss = Loss(label, mask, weight_decay, network.trainable_params()[0])
-
-    def construct(self):
-        preds = self.network()
-        loss = self.loss(preds)
-        return loss
-
-
-class TrainOneStepCell(nn.Cell):
-    r"""
-    Network training package class.
-
-    Wraps the network with an optimizer. The resulting Cell be trained without inputs.
-    Backward graph will be created in the construct function to do parameter updating. Different
-    parallel modes are available to run the training.
-
-    Args:
-        network (Cell): The training network.
-        optimizer (Cell): Optimizer for updating the weights.
-        sens (Number): The scaling number to be filled as the input of backpropagation. Default value is 1.0.
-
-    Outputs:
-        Tensor, a scalar Tensor with shape :math:`()`.
-
-    Examples:
-        >>> net = Net()
-        >>> loss_fn = nn.SoftmaxCrossEntropyWithLogits()
-        >>> optim = nn.Momentum(net.trainable_params(), learning_rate=0.1, momentum=0.9)
-        >>> loss_net = nn.WithLossCell(net, loss_fn)
-        >>> train_net = nn.TrainOneStepCell(loss_net, optim)
-    """
-
-    def __init__(self, network, optimizer, sens=1.0):
-        super(TrainOneStepCell, self).__init__(auto_prefix=False)
-        self.network = network
-        self.network.add_flags(defer_inline=True)
-        self.weights = ParameterTuple(network.trainable_params())
-        self.optimizer = optimizer
-        self.grad = C.GradOperation('grad', get_by_list=True, sens_param=True)
-        self.sens = sens
-
-    def construct(self):
-        weights = self.weights
-        loss = self.network()
-        sens = P.Fill()(P.DType()(loss), P.Shape()(loss), self.sens)
-        grads = self.grad(self.network, weights)(sens)
-        return F.depend(loss, self.optimizer(grads))
-
-
-class TrainNetWrapper(nn.Cell):
-    def __init__(self, network, label, mask, config):
-        super(TrainNetWrapper, self).__init__(auto_prefix=True)
-        self.network = network
-        loss_net = LossWrapper(network, label, mask, config.weight_decay)
-        optimizer = nn.Adam(loss_net.trainable_params(),
-                            learning_rate=config.learning_rate)
-        self.loss_train_net = TrainOneStepCell(loss_net, optimizer)
-        self.accuracy = Accuracy(label, mask)
-
-    def construct(self):
-        loss = self.loss_train_net()
-        accuracy = self.accuracy(self.network())
-        return loss, accuracy

tests/st/gnn/gcn/src/metrics.py

-# Copyright 2020 Huawei Technologies Co., Ltd
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-# ============================================================================
-
-from mindspore import nn
-from mindspore import Tensor
-from mindspore.common import dtype as mstype
-from mindspore.ops import operations as P
-
-
-class Loss(nn.Cell):
-    def __init__(self, label, mask, weight_decay, param):
-        super(Loss, self).__init__()
-        self.label = Tensor(label)
-        self.mask = Tensor(mask)
-        self.loss = P.SoftmaxCrossEntropyWithLogits()
-        self.one = Tensor(1.0, mstype.float32)
-        self.zero = Tensor(0.0, mstype.float32)
-        self.mean = P.ReduceMean()
-        self.cast = P.Cast()
-        self.l2_loss = P.L2Loss()
-        self.reduce_sum = P.ReduceSum()
-        self.weight_decay = weight_decay
-        self.param = param
-
-    def construct(self, preds):
-        param = self.l2_loss(self.param)
-        loss = self.weight_decay * param
-        preds = self.cast(preds, mstype.float32)
-        loss = loss + self.loss(preds, self.label)[0]
-        mask = self.cast(self.mask, mstype.float32)
-        mask_reduce = self.mean(mask)
-        mask = mask / mask_reduce
-        loss = loss * mask
-        loss = self.mean(loss)
-        return loss
-
-
-class Accuracy(nn.Cell):
-    def __init__(self, label, mask):
-        super(Accuracy, self).__init__()
-        self.label = Tensor(label)
-        self.mask = Tensor(mask)
-        self.equal = P.Equal()
-        self.argmax = P.Argmax()
-        self.cast = P.Cast()
-        self.mean = P.ReduceMean()
-
-    def construct(self, preds):
-        preds = self.cast(preds, mstype.float32)
-        correct_prediction = self.equal(self.argmax(preds), self.argmax(self.label))
-        accuracy_all = self.cast(correct_prediction, mstype.float32)
-        mask = self.cast(self.mask, mstype.float32)
-        mask_reduce = self.mean(mask)
-        mask = mask / mask_reduce
-        accuracy_all *= mask
-        return self.mean(accuracy_all)

tests/st/gnn/gcn/test_gcn.py

@@ -17,9 +17,9 @@ import time
 import pytest
 import numpy as np
 from mindspore import context
-from src.gcn import GCN, LossAccuracyWrapper, TrainNetWrapper
-from src.config import ConfigGCN
-from src.dataset import get_adj_features_labels, get_mask
+from model_zoo.gcn.src.gcn import GCN, LossAccuracyWrapper, TrainNetWrapper
+from model_zoo.gcn.src.config import ConfigGCN
+from model_zoo.gcn.src.dataset import get_adj_features_labels, get_mask
 
 
 DATA_DIR = '/home/workspace/mindspore_dataset/cora/cora_mr/cora_mr'
@@ -37,22 +37,23 @@ def test_gcn():
     print("test_gcn begin")
     np.random.seed(SEED)
     context.set_context(mode=context.GRAPH_MODE,
-                        device_target="Ascend", save_graphs=True)
+                        device_target="Ascend", save_graphs=False)
     config = ConfigGCN()
-    adj, feature, label = get_adj_features_labels(DATA_DIR)
+    config.dropout = 0.0
+    adj, feature, label_onehot, _ = get_adj_features_labels(DATA_DIR)
 
-    nodes_num = label.shape[0]
+    nodes_num = label_onehot.shape[0]
     train_mask = get_mask(nodes_num, 0, TRAIN_NODE_NUM)
     eval_mask = get_mask(nodes_num, TRAIN_NODE_NUM, TRAIN_NODE_NUM + EVAL_NODE_NUM)
     test_mask = get_mask(nodes_num, nodes_num - TEST_NODE_NUM, nodes_num)
 
-    class_num = label.shape[1]
+    class_num = label_onehot.shape[1]
     gcn_net = GCN(config, adj, feature, class_num)
     gcn_net.add_flags_recursive(fp16=True)
 
-    eval_net = LossAccuracyWrapper(gcn_net, label, eval_mask, config.weight_decay)
-    test_net = LossAccuracyWrapper(gcn_net, label, test_mask, config.weight_decay)
-    train_net = TrainNetWrapper(gcn_net, label, train_mask, config)
+    eval_net = LossAccuracyWrapper(gcn_net, label_onehot, eval_mask, config.weight_decay)
+    test_net = LossAccuracyWrapper(gcn_net, label_onehot, test_mask, config.weight_decay)
+    train_net = TrainNetWrapper(gcn_net, label_onehot, train_mask, config)
 
     loss_list = []
     for epoch in range(config.epochs):