示例#1
0
 def test_qaranker_local_integration(self):
     relations = Relations.read(self.qa_path + "/relations.txt")
     assert len(relations) == 4
     text_set = TextSet.read_csv(self.qa_path + "/question_corpus.csv")
     assert text_set.get_uris() == ["Q1", "Q2"]
     transformed = text_set.tokenize().normalize().word2idx(
     ).shape_sequence(5)
     relation_pairs = TextSet.from_relation_pairs(relations, transformed,
                                                  transformed)
     pair_samples = relation_pairs.get_samples()
     assert len(pair_samples) == 2
     for sample in pair_samples:
         assert list(sample.feature.shape) == [2, 10]
         assert np.allclose(sample.label.to_ndarray(),
                            np.array([[1.0], [0.0]]))
     relation_lists = TextSet.from_relation_lists(relations, transformed,
                                                  transformed)
     relation_samples = relation_lists.get_samples()
     assert len(relation_samples) == 2
     for sample in relation_samples:
         assert list(sample.feature.shape) == [2, 10]
         assert list(sample.label.shape) == [2, 1]
     knrm = KNRM(5,
                 5,
                 self.glove_path,
                 word_index=transformed.get_word_index())
     model = Sequential().add(TimeDistributed(knrm, input_shape=(2, 10)))
     model.compile("sgd", "rank_hinge")
     model.fit(relation_pairs, batch_size=2, nb_epoch=2)
     print(knrm.evaluate_ndcg(relation_lists, 3))
     print(knrm.evaluate_map(relation_lists))
示例#2
0
    parser.add_option("-l", "--learning_rate", dest="learning_rate", default="0.001")
    parser.add_option("-m", "--model", dest="model")
    parser.add_option("--output_path", dest="output_path")

    (options, args) = parser.parse_args(sys.argv)
    sc = init_nncontext("QARanker Example")

    q_set = TextSet.read_csv(options.data_path + "/question_corpus.csv",
                             sc, int(options.partition_num)).tokenize().normalize()\
        .word2idx(min_freq=2).shape_sequence(int(options.question_length))
    a_set = TextSet.read_csv(options.data_path+"/answer_corpus.csv",
                             sc, int(options.partition_num)).tokenize().normalize()\
        .word2idx(min_freq=2, existing_map=q_set.get_word_index())\
        .shape_sequence(int(options.answer_length))

    train_relations = Relations.read(options.data_path + "/relation_train.csv",
                                     sc, int(options.partition_num))
    train_set = TextSet.from_relation_pairs(train_relations, q_set, a_set)
    validate_relations = Relations.read(options.data_path + "/relation_valid.csv",
                                        sc, int(options.partition_num))
    validate_set = TextSet.from_relation_lists(validate_relations, q_set, a_set)

    if options.model:
        knrm = KNRM.load_model(options.model)
    else:
        word_index = a_set.get_word_index()
        knrm = KNRM(int(options.question_length), int(options.answer_length),
                    options.embedding_file, word_index)
    model = Sequential().add(
        TimeDistributed(
            knrm,
            input_shape=(2, int(options.question_length) + int(options.answer_length))))