Esempio n. 1
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    def test_train_model_multi_embed20_hidden40(self):
        multi_text = pd.read_csv("../../data/sentences_multilingual.csv")
        multi_text_train, multi_text_test = train_test_split(multi_text,
                                                             test_size=0.2)

        multi_text.groupby('lang').count()
        multi_text_train.groupby('lang').count()

        _c2i, _i2c = vocab.build_vocab(multi_text.sentence.values)
        _l2i, _i2l = vocab.build_label_vocab(multi_text.lang.values)

        multi_class = lang_id.LangID(input_vocab_n=len(_c2i),
                                     embedding_dims=20,
                                     hidden_dims=40,
                                     lstm_layers=1,
                                     output_class_n=5)

        lang_id.train_model(model=multi_class,
                            n_epochs=1,
                            training_data=multi_text_train,
                            c2i=_c2i,
                            i2c=_i2c,
                            l2i=_l2i,
                            i2l=_i2l)
        print("done")

        acc_multi, y_hat_multi = lang_id.eval_acc(multi_class, multi_text_test,
                                                  _c2i, _i2c, _l2i, _i2l)

        # Jupyter reported Accuracy: 0.6954
        # Run 1: Accuracy: 0.6954
        print(f"Accuracy: {acc_multi}")

        from sklearn.metrics import classification_report, confusion_matrix
        y_multi = multi_text_test.lang.values
        print(classification_report(y_multi, y_hat_multi))

        cm = confusion_matrix(y_multi, y_hat_multi)
        cm

        #reload(lang_id);
        lang_id.pretty_conf_matrix(cm, ['deu', 'eng', 'fra', 'ita', 'spa'])

        assert_greater(acc_multi, 0.60)
Esempio n. 2
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    def test_train_model(self):

        # Adding prefix _ to local variables
        # Noticed some variation in the scores every time I run it.
        # Don't want to pollute my variables with globals when running all tests
        _bi_text = pd.read_csv("../../data/sentences_bilingual.csv")
        _bi_text_train, _bi_text_test = train_test_split(_bi_text,
                                                         test_size=0.2)
        _c2i, _i2c = vocab.build_vocab(bi_text.sentence.values)
        _l2i, _i2l = vocab.build_label_vocab(bi_text.lang.values)

        _li = lang_id.LangID(input_vocab_n=len(_c2i),
                             embedding_dims=10,
                             hidden_dims=20,
                             lstm_layers=1,
                             output_class_n=2)

        _trained_model = lang_id.train_model(model=_li,
                                             n_epochs=1,
                                             training_data=_bi_text_train,
                                             c2i=_c2i,
                                             i2c=_i2c,
                                             l2i=_l2i,
                                             i2l=_i2l)

        _trained_model(vocab.sentence_to_tensor("this is a sentence", _c2i))
        _trained_model(vocab.sentence_to_tensor("quien estas", _c2i))

        _acc, _y_hat = lang_id.eval_acc(_trained_model, _bi_text_test, _c2i,
                                        _i2c, _l2i, _i2l)
        print(f"Trained Accuracy: {_acc}")

        _untrained = lang_id.LangID(input_vocab_n=len(_c2i),
                                    embedding_dims=10,
                                    hidden_dims=20,
                                    lstm_layers=1,
                                    output_class_n=2)

        _acc_untrained, _y_hat_untrained = lang_id.eval_acc(
            _untrained, _bi_text_test, _c2i, _i2c, _l2i, _i2l)
        print(f"Untrained Accuracy: {_acc_untrained}")

        assert_greater(_acc, 0.89)
Esempio n. 3
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    def test_train_model_embed2_hidden2(self):

        # Adding prefix _ to local variables
        # Noticed some variation in the scores every time I run it.
        # Don't want to pollute my variables with globals when running all tests
        _bi_text = pd.read_csv("../../data/sentences_bilingual.csv")
        _bi_text_train, _bi_text_test = train_test_split(_bi_text,
                                                         test_size=0.2)
        _c2i, _i2c = vocab.build_vocab(bi_text.sentence.values)
        _l2i, _i2l = vocab.build_label_vocab(bi_text.lang.values)

        _li = lang_id.LangID(input_vocab_n=len(_c2i),
                             embedding_dims=2,
                             hidden_dims=2,
                             lstm_layers=1,
                             output_class_n=2)

        _trained_model = lang_id.train_model(model=_li,
                                             n_epochs=1,
                                             training_data=_bi_text_train,
                                             c2i=_c2i,
                                             i2c=_i2c,
                                             l2i=_l2i,
                                             i2l=_i2l)

        _trained_model(vocab.sentence_to_tensor("this is a sentence", _c2i))
        _trained_model(vocab.sentence_to_tensor("quien estas", _c2i))

        _acc, _y_hat = lang_id.eval_acc(_trained_model, _bi_text_test, _c2i,
                                        _i2c, _l2i, _i2l)
        print(f"Trained Accuracy: {_acc}")

        pred_label_list = np.asarray(_y_hat)
        pd.options.mode.chained_assignment = None

        pred_label_list = np.asarray(_y_hat)
        pd.options.mode.chained_assignment = None
        _bi_text_test["predicted"] = pred_label_list
        _bi_text_test = _bi_text_test[["sentence", "lang", "predicted"]]
        _bi_text_test.to_csv("../../data/deliverable_2.4.csv", index=False)

        assert_greater(_acc, 0.89)