add transpose for connection matrix and update network (#1953)

fluid/PaddleRec/gnn/network.py

@@ -168,7 +168,7 @@ def network(batch_size, items_num, hidden_size, step):
     global_attention = layers.reduce_sum(weight_mask, dim=1)
 
     final_attention = layers.concat(
-        [global_attention, last_fc], axis=1)  #[batch_size, 2*h]
+        [global_attention, last], axis=1)  #[batch_size, 2*h]
     final_attention_fc = layers.fc(
         input=final_attention,
         name="fina_attention_fc",

fluid/PaddleRec/gnn/reader.py

@@ -57,13 +57,11 @@ class Data():
 
             u_deg_in = np.sum(adj, 0)
             u_deg_in[np.where(u_deg_in == 0)] = 1
-            adj_in.append(
-                np.divide(adj, u_deg_in)
-            )  #maybe should add a transpose, but the result shows no difference
+            adj_in.append(np.divide(adj, u_deg_in).transpose())
 
             u_deg_out = np.sum(adj, 1)
             u_deg_out[np.where(u_deg_out == 0)] = 1
-            adj_out.append(np.divide(adj.transpose(), u_deg_out))
+            adj_out.append(np.divide(adj.transpose(), u_deg_out).transpose())
 
             seq_index.append(
                 [np.where(node == i)[0][0] + id * max_uniq_len for i in e[0]])