seq2seq_test.py 文件源码

def testDynamicAttentionDecoder2(self):
    with self.test_session() as sess:
      with variable_scope.variable_scope(
          "root", initializer=init_ops.constant_initializer(0.5)):
        cell = core_rnn_cell_impl.GRUCell(2)
        inp = constant_op.constant(0.5, shape=[2, 2, 2])
        enc_outputs, enc_state = rnn.dynamic_rnn(
            cell, inp, dtype=dtypes.float32)
        attn_states = enc_outputs
        dec_inp = [constant_op.constant(0.4, shape=[2, 2])] * 3
        dec, mem = seq2seq_lib.attention_decoder(
            dec_inp, enc_state, attn_states, cell, output_size=4, num_heads=2)
        sess.run([variables.global_variables_initializer()])
        res = sess.run(dec)
        self.assertEqual(3, len(res))
        self.assertEqual((2, 4), res[0].shape)

        res = sess.run([mem])
        self.assertEqual((2, 2), res[0].shape)