コード例 #1
0
def Text_Classification(x_train, y_train, x_test,  y_test, batch_size=128,
                        EMBEDDING_DIM=50,MAX_SEQUENCE_LENGTH = 500, MAX_NB_WORDS = 75000,
                        GloVe_dir="", GloVe_file = "glove.6B.50d.txt",
                        sparse_categorical=True, random_deep=[3, 3, 3], epochs=[500, 500, 500],  plot=False,
                        min_hidden_layer_dnn=1, max_hidden_layer_dnn=8, min_nodes_dnn=128, max_nodes_dnn=1024,
                        min_hidden_layer_rnn=1, max_hidden_layer_rnn=5, min_nodes_rnn=32,  max_nodes_rnn=128,
                        min_hidden_layer_cnn=3, max_hidden_layer_cnn=10, min_nodes_cnn=128, max_nodes_cnn=512,
                        random_state=42, random_optimizor=True, dropout=0.5,no_of_classes=0):


    """
    Text_Classification(x_train, y_train, x_test,  y_test, batch_size=128,
                        EMBEDDING_DIM=50,MAX_SEQUENCE_LENGTH = 500, MAX_NB_WORDS = 75000,
                        GloVe_dir="", GloVe_file = "glove.6B.50d.txt",
                        sparse_categorical=True, random_deep=[3, 3, 3], epochs=[500, 500, 500],  plot=False,
                        min_hidden_layer_dnn=1, max_hidden_layer_dnn=8, min_nodes_dnn=128, max_nodes_dnn=1024,
                        min_hidden_layer_rnn=1, max_hidden_layer_rnn=5, min_nodes_rnn=32,  max_nodes_rnn=128,
                        min_hidden_layer_cnn=3, max_hidden_layer_cnn=10, min_nodes_cnn=128, max_nodes_cnn=512,
                        random_state=42, random_optimizor=True, dropout=0.5):

        Parameters
        ----------
            batch_size : Integer, , optional
                Number of samples per gradient update. If unspecified, it will default to 128
            MAX_NB_WORDS: int, optional
                Maximum number of unique words in datasets, it will default to 75000.
            GloVe_dir: String, optional
                Address of GloVe or any pre-trained directory, it will default to null which glove.6B.zip will be download.
            GloVe_dir: String, optional
                Which version of GloVe or pre-trained word emending will be used, it will default to glove.6B.50d.txt.
                NOTE: if you use other version of GloVe EMBEDDING_DIM must be same dimensions.
            sparse_categorical: bool.
                When target's dataset is (n,1) should be True, it will default to True.
            random_deep: array of int [3], optional
                Number of ensembled model used in RMDL random_deep[0] is number of DNN, random_deep[1] is number of RNN, random_deep[0] is number of CNN, it will default to [3, 3, 3].
            epochs: array of int [3], optional
                Number of epochs in each ensembled model used in RMDL epochs[0] is number of epochs used in DNN, epochs[1] is number of epochs used in RNN, epochs[0] is number of epochs used in CNN, it will default to [500, 500, 500].
            plot: bool, optional
                True: shows confusion matrix and accuracy and loss
            min_hidden_layer_dnn: Integer, optional
                Lower Bounds of hidden layers of DNN used in RMDL, it will default to 1.
            max_hidden_layer_dnn: Integer, optional
                Upper bounds of hidden layers of DNN used in RMDL, it will default to 8.
            min_nodes_dnn: Integer, optional
                Lower bounds of nodes in each layer of DNN used in RMDL, it will default to 128.
            max_nodes_dnn: Integer, optional
                Upper bounds of nodes in each layer of DNN used in RMDL, it will default to 1024.
            min_hidden_layer_rnn: Integer, optional
                Lower Bounds of hidden layers of RNN used in RMDL, it will default to 1.
            min_hidden_layer_rnn: Integer, optional
                Upper Bounds of hidden layers of RNN used in RMDL, it will default to 5.
            min_nodes_rnn: Integer, optional
                Lower bounds of nodes (LSTM or GRU) in each layer of RNN used in RMDL, it will default to 32.
            max_nodes_rnn: Integer, optional
                Upper bounds of nodes (LSTM or GRU) in each layer of RNN used in RMDL, it will default to 128.
            min_hidden_layer_cnn: Integer, optional
                Lower Bounds of hidden layers of CNN used in RMDL, it will default to 3.
            max_hidden_layer_cnn: Integer, optional
                Upper Bounds of hidden layers of CNN used in RMDL, it will default to 10.
            min_nodes_cnn: Integer, optional
                Lower bounds of nodes (2D convolution layer) in each layer of CNN used in RMDL, it will default to 128.
            min_nodes_cnn: Integer, optional
                Upper bounds of nodes (2D convolution layer) in each layer of CNN used in RMDL, it will default to 512.
            random_state : Integer, optional
                RandomState instance or None, optional (default=None)
                If Integer, random_state is the seed used by the random number generator;
            random_optimizor : bool, optional
                If False, all models use adam optimizer. If True, all models use random optimizers. it will default to True
            dropout: Float, optional
                between 0 and 1. Fraction of the units to drop for the linear transformation of the inputs.

    """
    np.random.seed(random_state)


    glove_directory = GloVe_dir
    GloVe_file = GloVe_file

    print("Done1")

    GloVe_needed = random_deep[1] != 0 or random_deep[2] != 0
    
    # example_input  = [0,1,3]
    # example_output :
    # 
    # [[1 0 0 0]
    #  [0 1 0 0]
    #  [0 0 0 1]]
    
    def one_hot_encoder(value, label_data_):

        label_data_[value] = 1

        return label_data_

    def _one_hot_values(labels_data):
        encoded = [0] * len(labels_data)

        for index_no, value in enumerate(labels_data):
            max_value = [0] * (np.max(labels_data) + 1)

            encoded[index_no] = one_hot_encoder(value, max_value)

        return np.array(encoded)

    if not isinstance(y_train[0], list) and not isinstance(y_train[0], np.ndarray) and not sparse_categorical::
        #checking if labels are one hot or not otherwise dense_layer will give shape error 
        
        print("converted_into_one_hot")
        y_train = _one_hot_values(y_train)
        y_test = _one_hot_values(y_test)
            




    if GloVe_needed:
        if glove_directory == "":
            GloVe_directory = GloVe.download_and_extract()
            GloVe_DIR = os.path.join(GloVe_directory, GloVe_file)
        else:
            GloVe_DIR = os.path.join(glove_directory, GloVe_file)

        if not os.path.isfile(GloVe_DIR):
            print("Could not find %s Set GloVe Directory in Global.py ", GloVe)
            exit()

    G.setup()
    if random_deep[0] != 0:
        x_train_tfidf, x_test_tfidf = txt.loadData(x_train, x_test,MAX_NB_WORDS=MAX_NB_WORDS)
    if random_deep[1] != 0 or random_deep[2] != 0 :
        print(GloVe_DIR)
        x_train_embedded, x_test_embedded, word_index, embeddings_index = txt.loadData_Tokenizer(x_train, x_test,GloVe_DIR,MAX_NB_WORDS,MAX_SEQUENCE_LENGTH,EMBEDDING_DIM)

    del x_train
    del x_test
    gc.collect()

    y_pr = []
    History = []
    score = []

    if no_of_classes==0:
        #checking no_of_classes
        #np.max(data)+1 will not work for one_hot encoding labels
        if sparse_categorical:
            number_of_classes = np.max(y_train) + 1
        else:
            number_of_classes = len(y_train[0])
    else:
        number_of_classes = no_of_classes
    print(number_of_classes)


    i = 0
    while i < random_deep[0]:
        # model_DNN.append(Sequential())
        try:
            print("DNN " + str(i))
            filepath = "weights\weights_DNN_" + str(i) + ".hdf5"
            checkpoint = ModelCheckpoint(filepath,
                                         monitor='val_acc',
                                         verbose=1,
                                         save_best_only=True,
                                         mode='max')
            callbacks_list = [checkpoint]

            model_DNN, model_tmp = BuildModel.Build_Model_DNN_Text(x_train_tfidf.shape[1],
                                                                   number_of_classes,
                                                                   sparse_categorical,
                                                                   min_hidden_layer_dnn,
                                                                   max_hidden_layer_dnn,
                                                                   min_nodes_dnn,
                                                                   max_nodes_dnn,
                                                                   random_optimizor,
                                                                   dropout)
            model_history = model_DNN.fit(x_train_tfidf, y_train,
                              validation_data=(x_test_tfidf, y_test),
                              epochs=epochs[0],
                              batch_size=batch_size,
                              callbacks=callbacks_list,
                              verbose=2)
            History.append(model_history)

            model_tmp.load_weights(filepath)
            if sparse_categorical:
                model_tmp.compile(loss='sparse_categorical_crossentropy',
                                  optimizer='adam',
                                  metrics=['accuracy'])

                y_pr_ = model_tmp.predict_classes(x_test_tfidf,
                                                  batch_size=batch_size)
                y_pr.append(np.array(y_pr_))
                score.append(accuracy_score(y_test, y_pr_))
            else:
                model_tmp.compile(loss='categorical_crossentropy',
                                  optimizer='adam',
                                  metrics=['accuracy'])

                y_pr_ = model_tmp.predict(x_test_tfidf,
                                          batch_size=batch_size)

                y_pr_ = np.argmax(y_pr_, axis=1)
                y_pr.append(np.array(y_pr_))
                y_test_temp = np.argmax(y_test, axis=1)
                score.append(accuracy_score(y_test_temp, y_pr_))
            # print(y_proba)
            i += 1
            del model_tmp
            del model_DNN

        except Exception as e:

            print("Check the Error \n {} ".format(e))

            print("Error in model", i, "try to re-generate another model")
            if max_hidden_layer_dnn > 3:
                max_hidden_layer_dnn -= 1
            if max_nodes_dnn > 256:
                max_nodes_dnn -= 8

    try:
        del x_train_tfidf
        del x_test_tfidf
        gc.collect()
    except:
        pass

    i=0
    while i < random_deep[1]:
        try:
            print("RNN " + str(i))
            filepath = "weights\weights_RNN_" + str(i) + ".hdf5"
            checkpoint = ModelCheckpoint(filepath,
                                         monitor='val_acc',
                                         verbose=1,
                                         save_best_only=True,
                                         mode='max')
            callbacks_list = [checkpoint]

            model_RNN, model_tmp = BuildModel.Build_Model_RNN_Text(word_index,
                                                                   embeddings_index,
                                                                   number_of_classes,
                                                                   MAX_SEQUENCE_LENGTH,
                                                                   EMBEDDING_DIM,
                                                                   sparse_categorical,
                                                                   min_hidden_layer_rnn,
                                                                   max_hidden_layer_rnn,
                                                                   min_nodes_rnn,
                                                                   max_nodes_rnn,
                                                                   random_optimizor,
                                                                   dropout)

            model_history = model_RNN.fit(x_train_embedded, y_train,
                              validation_data=(x_test_embedded, y_test),
                              epochs=epochs[1],
                              batch_size=batch_size,
                              callbacks=callbacks_list,
                              verbose=2)
            History.append(model_history)

            if sparse_categorical:
                model_tmp.load_weights(filepath)
                model_tmp.compile(loss='sparse_categorical_crossentropy',
                                  optimizer='rmsprop',
                                  metrics=['accuracy'])

                y_pr_ = model_tmp.predict_classes(x_test_embedded, batch_size=batch_size)
                y_pr.append(np.array(y_pr_))
                score.append(accuracy_score(y_test, y_pr_))
            else:
                model_tmp.load_weights(filepath)
                model_tmp.compile(loss='categorical_crossentropy',
                                  optimizer='rmsprop',
                                  metrics=['accuracy'])
                y_pr_ = model_tmp.predict(x_test_embedded, batch_size=batch_size)
                y_pr_ = np.argmax(y_pr_, axis=1)
                y_pr.append(np.array(y_pr_))
                y_test_temp = np.argmax(y_test, axis=1)
                score.append(accuracy_score(y_test_temp, y_pr_))
            i += 1
            del model_tmp
            del model_RNN
            gc.collect()
        except:
            print("Error in model", i, "try to re-generate another model")
            if max_hidden_layer_rnn > 3:
                max_hidden_layer_rnn -= 1
            if max_nodes_rnn > 64:
                max_nodes_rnn -= 2

    gc.collect()

    i = 0
    while i < random_deep[2]:
        try:
            print("CNN " + str(i))

            model_CNN, model_tmp = BuildModel.Build_Model_CNN_Text(word_index,
                                                                   embeddings_index,
                                                                   number_of_classes,
                                                                   MAX_SEQUENCE_LENGTH,
                                                                   EMBEDDING_DIM,
                                                                   sparse_categorical,
                                                                   min_hidden_layer_cnn,
                                                                   max_hidden_layer_cnn,
                                                                   min_nodes_cnn,
                                                                   max_nodes_cnn,
                                                                   random_optimizor,
                                                                   dropout)



            filepath = "weights\weights_CNN_" + str(i) + ".hdf5"
            checkpoint = ModelCheckpoint(filepath, monitor='val_acc', verbose=1, save_best_only=True,
                                         mode='max')
            callbacks_list = [checkpoint]

            model_history = model_CNN.fit(x_train_embedded, y_train,
                                          validation_data=(x_test_embedded, y_test),
                                          epochs=epochs[2],
                                          batch_size=batch_size,
                                          callbacks=callbacks_list,
                                          verbose=2)
            History.append(model_history)

            model_tmp.load_weights(filepath)
            if sparse_categorical:
                model_tmp.compile(loss='sparse_categorical_crossentropy',
                                  optimizer='rmsprop',
                                  metrics=['accuracy'])
            else:
                model_tmp.compile(loss='categorical_crossentropy',
                                  optimizer='rmsprop',
                                  metrics=['accuracy'])

            y_pr_ = model_tmp.predict(x_test_embedded, batch_size=batch_size)
            y_pr_ = np.argmax(y_pr_, axis=1)
            y_pr.append(np.array(y_pr_))

            if sparse_categorical:
                score.append(accuracy_score(y_test, y_pr_))
            else:
                y_test_temp = np.argmax(y_test, axis=1)
                score.append(accuracy_score(y_test_temp, y_pr_))
            i += 1

            del model_tmp
            del model_CNN
            gc.collect()
        except:
            print("Error in model", i, "try to re-generate an other model")
            if max_hidden_layer_cnn > 5:
                max_hidden_layer_cnn -= 1
            if max_nodes_cnn > 128:
                max_nodes_cnn -= 2
                min_nodes_cnn -= 1

    gc.collect()


    y_proba = np.array(y_pr).transpose()

    final_y = []

    for i in range(0, y_proba.shape[0]):
        a = np.array(y_proba[i, :])
        a = collections.Counter(a).most_common()[0][0]
        final_y.append(a)
    if sparse_categorical:
        F_score = accuracy_score(y_test, final_y)
        F1 = precision_recall_fscore_support(y_test, final_y, average='micro')
        F2 = precision_recall_fscore_support(y_test, final_y, average='macro')
        F3 = precision_recall_fscore_support(y_test, final_y, average='weighted')
        cnf_matrix = confusion_matrix(y_test, final_y)
        # Compute confusion matrix
        # Plot non-normalized confusion matrix

        if plot:
            classes = list(range(0, np.max(y_test)+1))
            Plot.plot_confusion_matrix(cnf_matrix, classes=classes,
                                       title='Confusion matrix, without normalization')

            # Plot normalized confusion matrix

            Plot.plot_confusion_matrix(cnf_matrix, classes=classes, normalize=True,
                                       title='Normalized confusion matrix')
    else:
        y_test_temp = np.argmax(y_test, axis=1)
        F_score = accuracy_score(y_test_temp, final_y)
        F1 = precision_recall_fscore_support(y_test_temp, final_y, average='micro')
        F2 = precision_recall_fscore_support(y_test_temp, final_y, average='macro')
        F3 = precision_recall_fscore_support(y_test_temp, final_y, average='weighted')
    if plot:
        Plot.RMDL_epoch(History)
    print(y_proba.shape)
    print("Accuracy of",len(score),"models:",score)
    print("Accuracy:",F_score)
    print("F1_Micro:",F1)
    print("F1_Macro:",F2)
    print("F1_weighted:",F3)
コード例 #2
0
ファイル: RMDL_Text.py プロジェクト: monk1337/RMDL
def Text_Classification(x_train,
                        y_train,
                        x_test,
                        y_test,
                        batch_size=128,
                        EMBEDDING_DIM=50,
                        MAX_SEQUENCE_LENGTH=500,
                        MAX_NB_WORDS=75000,
                        GloVe_dir="",
                        GloVe_file="glove.6B.50d.txt",
                        sparse_categorical=True,
                        random_deep=[3, 3, 3],
                        epochs=[500, 500, 500],
                        plot=False,
                        min_hidden_layer_dnn=1,
                        max_hidden_layer_dnn=8,
                        min_nodes_dnn=128,
                        max_nodes_dnn=1024,
                        min_hidden_layer_rnn=1,
                        max_hidden_layer_rnn=5,
                        min_nodes_rnn=32,
                        max_nodes_rnn=128,
                        min_hidden_layer_cnn=3,
                        max_hidden_layer_cnn=10,
                        min_nodes_cnn=128,
                        max_nodes_cnn=512,
                        random_state=42,
                        random_optimizor=True,
                        dropout=0.5,
                        no_of_classes=0):

    np.random.seed(random_state)

    glove_directory = GloVe_dir
    GloVe_file = GloVe_file

    GloVe_needed = random_deep[1] != 0 or random_deep[2] != 0

    # example_input  = [0,1,3]
    # example_output :
    #
    # [[1 0 0 0]
    #  [0 1 0 0]
    #  [0 0 0 1]]

    def one_hot_encoder(value, datal):

        datal[value] = 1

        return datal

    def _one_hot_values(labels_data):
        encoded = [0] * len(labels_data)

        for j, i in enumerate(labels_data):
            max_value = [0] * (np.max(labels_data) + 1)

            encoded[j] = one_hot_encoder(i, max_value)

        return np.array(encoded)

    if not isinstance(y_train[0], list) and not isinstance(
            y_train[0], np.ndarray):
        #checking if labels are one hot or not otherwise dense_layer will give shape error

        print("converted_into_one_hot")
        y_train = _one_hot_values(y_train)
        y_test = _one_hot_values(y_test)

    if GloVe_needed:
        if glove_directory == "":
            GloVe_directory = GloVe.download_and_extract()
            GloVe_DIR = os.path.join(GloVe_directory, GloVe_file)
        else:
            GloVe_DIR = os.path.join(glove_directory, GloVe_file)

        if not os.path.isfile(GloVe_DIR):
            print("Could not find %s Set GloVe Directory in Global.py ", GloVe)
            exit()

    G.setup()
    if random_deep[0] != 0:
        x_train_tfidf, x_test_tfidf = txt.loadData(x_train,
                                                   x_test,
                                                   MAX_NB_WORDS=MAX_NB_WORDS)
    if random_deep[1] != 0 or random_deep[2] != 0:
        print(GloVe_DIR)
        x_train_embedded, x_test_embedded, word_index, embeddings_index = txt.loadData_Tokenizer(
            x_train, x_test, GloVe_DIR, MAX_NB_WORDS, MAX_SEQUENCE_LENGTH,
            EMBEDDING_DIM)

    del x_train
    del x_test
    gc.collect()

    y_pr = []
    History = []
    score = []

    if no_of_classes == 0:

        #checking no_of_classes
        #np.max(data)+1 will not work for one_hot encoding labels

        number_of_classes = len(y_train[0])
        print(number_of_classes)
    else:
        number_of_classes = no_of_classes
        print(number_of_classes)

    i = 0
    while i < random_deep[0]:
        # model_DNN.append(Sequential())
        try:
            print("DNN " + str(i))
            filepath = "weights\weights_DNN_" + str(i) + ".hdf5"
            checkpoint = ModelCheckpoint(filepath,
                                         monitor='val_acc',
                                         verbose=1,
                                         save_best_only=True,
                                         mode='max')
            callbacks_list = [checkpoint]

            model_DNN, model_tmp = BuildModel.Build_Model_DNN_Text(
                x_train_tfidf.shape[1], number_of_classes, sparse_categorical,
                min_hidden_layer_dnn, max_hidden_layer_dnn, min_nodes_dnn,
                max_nodes_dnn, random_optimizor, dropout)
            model_history = model_DNN.fit(x_train_tfidf,
                                          y_train,
                                          validation_data=(x_test_tfidf,
                                                           y_test),
                                          epochs=epochs[0],
                                          batch_size=batch_size,
                                          callbacks=callbacks_list,
                                          verbose=2)
            History.append(model_history)

            model_tmp.load_weights(filepath)
            if sparse_categorical:
                model_tmp.compile(loss='sparse_categorical_crossentropy',
                                  optimizer='adam',
                                  metrics=['accuracy'])

                y_pr_ = model_tmp.predict_classes(x_test_tfidf,
                                                  batch_size=batch_size)
                y_pr.append(np.array(y_pr_))
                score.append(accuracy_score(y_test, y_pr_))
            else:
                model_tmp.compile(loss='categorical_crossentropy',
                                  optimizer='adam',
                                  metrics=['accuracy'])

                y_pr_ = model_tmp.predict(x_test_tfidf, batch_size=batch_size)

                y_pr_ = np.argmax(y_pr_, axis=1)
                y_pr.append(np.array(y_pr_))
                y_test_temp = np.argmax(y_test, axis=1)
                score.append(accuracy_score(y_test_temp, y_pr_))
            # print(y_proba)
            i += 1
            del model_tmp
            del model_DNN

        except Exception as e:

            print("Check the Error \n {} ".format(e))

            print("Error in model", i, "try to re-generate another model")
            if max_hidden_layer_dnn > 3:
                max_hidden_layer_dnn -= 1
            if max_nodes_dnn > 256:
                max_nodes_dnn -= 8

    try:
        del x_train_tfidf
        del x_test_tfidf
        gc.collect()
    except:
        pass

    i = 0
    while i < random_deep[1]:
        try:
            print("RNN " + str(i))
            filepath = "weights\weights_RNN_" + str(i) + ".hdf5"
            checkpoint = ModelCheckpoint(filepath,
                                         monitor='val_acc',
                                         verbose=1,
                                         save_best_only=True,
                                         mode='max')
            callbacks_list = [checkpoint]

            model_RNN, model_tmp = BuildModel.Build_Model_RNN_Text(
                word_index, embeddings_index, number_of_classes,
                MAX_SEQUENCE_LENGTH, EMBEDDING_DIM, sparse_categorical,
                min_hidden_layer_rnn, max_hidden_layer_rnn, min_nodes_rnn,
                max_nodes_rnn, random_optimizor, dropout)

            model_history = model_RNN.fit(x_train_embedded,
                                          y_train,
                                          validation_data=(x_test_embedded,
                                                           y_test),
                                          epochs=epochs[1],
                                          batch_size=batch_size,
                                          callbacks=callbacks_list,
                                          verbose=2)
            History.append(model_history)

            if sparse_categorical:
                model_tmp.load_weights(filepath)
                model_tmp.compile(loss='sparse_categorical_crossentropy',
                                  optimizer='rmsprop',
                                  metrics=['accuracy'])

                y_pr_ = model_tmp.predict_classes(x_test_embedded,
                                                  batch_size=batch_size)
                y_pr.append(np.array(y_pr_))
                score.append(accuracy_score(y_test, y_pr_))
            else:
                model_tmp.load_weights(filepath)
                model_tmp.compile(loss='categorical_crossentropy',
                                  optimizer='rmsprop',
                                  metrics=['accuracy'])
                y_pr_ = model_tmp.predict(x_test_embedded,
                                          batch_size=batch_size)
                y_pr_ = np.argmax(y_pr_, axis=1)
                y_pr.append(np.array(y_pr_))
                y_test_temp = np.argmax(y_test, axis=1)
                score.append(accuracy_score(y_test_temp, y_pr_))
            i += 1
            del model_tmp
            del model_RNN
            gc.collect()
        except:
            print("Error in model", i, "try to re-generate another model")
            if max_hidden_layer_rnn > 3:
                max_hidden_layer_rnn -= 1
            if max_nodes_rnn > 64:
                max_nodes_rnn -= 2

    gc.collect()

    i = 0
    while i < random_deep[2]:
        try:
            print("CNN " + str(i))

            model_CNN, model_tmp = BuildModel.Build_Model_CNN_Text(
                word_index, embeddings_index, number_of_classes,
                MAX_SEQUENCE_LENGTH, EMBEDDING_DIM, sparse_categorical,
                min_hidden_layer_cnn, max_hidden_layer_cnn, min_nodes_cnn,
                max_nodes_cnn, random_optimizor, dropout)

            filepath = "weights\weights_CNN_" + str(i) + ".hdf5"
            checkpoint = ModelCheckpoint(filepath,
                                         monitor='val_acc',
                                         verbose=1,
                                         save_best_only=True,
                                         mode='max')
            callbacks_list = [checkpoint]

            model_history = model_CNN.fit(x_train_embedded,
                                          y_train,
                                          validation_data=(x_test_embedded,
                                                           y_test),
                                          epochs=epochs[2],
                                          batch_size=batch_size,
                                          callbacks=callbacks_list,
                                          verbose=2)
            History.append(model_history)

            model_tmp.load_weights(filepath)
            if sparse_categorical:
                model_tmp.compile(loss='sparse_categorical_crossentropy',
                                  optimizer='rmsprop',
                                  metrics=['accuracy'])
            else:
                model_tmp.compile(loss='categorical_crossentropy',
                                  optimizer='rmsprop',
                                  metrics=['accuracy'])

            y_pr_ = model_tmp.predict(x_test_embedded, batch_size=batch_size)
            y_pr_ = np.argmax(y_pr_, axis=1)
            y_pr.append(np.array(y_pr_))

            if sparse_categorical:
                score.append(accuracy_score(y_test, y_pr_))
            else:
                y_test_temp = np.argmax(y_test, axis=1)
                score.append(accuracy_score(y_test_temp, y_pr_))
            i += 1

            del model_tmp
            del model_CNN
            gc.collect()
        except:
            print("Error in model", i, "try to re-generate an other model")
            if max_hidden_layer_cnn > 5:
                max_hidden_layer_cnn -= 1
            if max_nodes_cnn > 128:
                max_nodes_cnn -= 2
                min_nodes_cnn -= 1

    gc.collect()

    y_proba = np.array(y_pr).transpose()

    final_y = []

    for i in range(0, y_proba.shape[0]):
        a = np.array(y_proba[i, :])
        a = collections.Counter(a).most_common()[0][0]
        final_y.append(a)
    if sparse_categorical:
        F_score = accuracy_score(y_test, final_y)
        F1 = precision_recall_fscore_support(y_test, final_y, average='micro')
        F2 = precision_recall_fscore_support(y_test, final_y, average='macro')
        F3 = precision_recall_fscore_support(y_test,
                                             final_y,
                                             average='weighted')
        cnf_matrix = confusion_matrix(y_test, final_y)
        # Compute confusion matrix
        # Plot non-normalized confusion matrix

        if plot:
            classes = list(range(0, np.max(y_test) + 1))
            Plot.plot_confusion_matrix(
                cnf_matrix,
                classes=classes,
                title='Confusion matrix, without normalization')

            # Plot normalized confusion matrix

            Plot.plot_confusion_matrix(cnf_matrix,
                                       classes=classes,
                                       normalize=True,
                                       title='Normalized confusion matrix')
    else:
        y_test_temp = np.argmax(y_test, axis=1)
        F_score = accuracy_score(y_test_temp, final_y)
        F1 = precision_recall_fscore_support(y_test_temp,
                                             final_y,
                                             average='micro')
        F2 = precision_recall_fscore_support(y_test_temp,
                                             final_y,
                                             average='macro')
        F3 = precision_recall_fscore_support(y_test_temp,
                                             final_y,
                                             average='weighted')
    if plot:
        Plot.RMDL_epoch(History)
    print(y_proba.shape)
    print("Accuracy of", len(score), "models:", score)
    print("Accuracy:", F_score)
    print("F1_Micro:", F1)
    print("F1_Macro:", F2)
    print("F1_weighted:", F3)
コード例 #3
0
ファイル: RMDL_Image.py プロジェクト: camiloenparis/RMDL
def Image_Classification(x_train, y_train, x_test, y_test, shape, batch_size=128,
                         sparse_categorical=True, random_deep=[3, 3, 3], epochs=[500, 500, 500], plot=False,
                         min_hidden_layer_dnn=1, max_hidden_layer_dnn=8, min_nodes_dnn=128, max_nodes_dnn=1024,
                         max_hidden_layer_rnn=5, min_nodes_rnn=32, max_nodes_rnn=128,
                         min_hidden_layer_cnn=3, max_hidden_layer_cnn=10, min_nodes_cnn=128, max_nodes_cnn=512,
                         random_state=42, random_optimizor=True, dropout=0.05):
    """
    def Image_Classification(x_train, y_train, x_test, y_test, shape, batch_size=128,
                             sparse_categorical=True, random_deep=[3, 3, 3], epochs=[500, 500, 500], plot=False,
                             min_hidden_layer_dnn=1, max_hidden_layer_dnn=8, min_nodes_dnn=128, max_nodes_dnn=1024,
                             min_hidden_layer_rnn=1, max_hidden_layer_rnn=5, min_nodes_rnn=32, max_nodes_rnn=128,
                             min_hidden_layer_cnn=3, max_hidden_layer_cnn=10, min_nodes_cnn=128, max_nodes_cnn=512,
                             random_state=42, random_optimizor=True, dropout=0.05):

            Parameters
            ----------
                x_train : string
                    input X for training
                y_train : int
                    input Y for training
                x_test : string
                    input X for testing
                x_test : int
                    input Y for testing
                shape : np.shape
                    shape of image. The most common situation would be a 2D input with shape (batch_size, input_dim).
                batch_size : Integer, , optional
                    Number of samples per gradient update. If unspecified, it will default to 128
                MAX_NB_WORDS: int, optional
                    Maximum number of unique words in datasets, it will default to 75000.
                GloVe_dir: String, optional
                    Address of GloVe or any pre-trained directory, it will default to null which glove.6B.zip will be download.
                GloVe_dir: String, optional
                    Which version of GloVe or pre-trained word emending will be used, it will default to glove.6B.50d.txt.
                    NOTE: if you use other version of GloVe EMBEDDING_DIM must be same dimensions.
                sparse_categorical: bool.
                    When target's dataset is (n,1) should be True, it will default to True.
                random_deep: array of int [3], optional
                    Number of ensembled model used in RMDL random_deep[0] is number of DNN, random_deep[1] is number of RNN, random_deep[0] is number of CNN, it will default to [3, 3, 3].
                epochs: array of int [3], optional
                    Number of epochs in each ensembled model used in RMDL epochs[0] is number of epochs used in DNN, epochs[1] is number of epochs used in RNN, epochs[0] is number of epochs used in CNN, it will default to [500, 500, 500].
                plot: bool, optional
                    True: shows confusion matrix and accuracy and loss
                min_hidden_layer_dnn: Integer, optional
                    Lower Bounds of hidden layers of DNN used in RMDL, it will default to 1.
                max_hidden_layer_dnn: Integer, optional
                    Upper bounds of hidden layers of DNN used in RMDL, it will default to 8.
                min_nodes_dnn: Integer, optional
                    Lower bounds of nodes in each layer of DNN used in RMDL, it will default to 128.
                max_nodes_dnn: Integer, optional
                    Upper bounds of nodes in each layer of DNN used in RMDL, it will default to 1024.
                min_hidden_layer_rnn: Integer, optional
                    Lower Bounds of hidden layers of RNN used in RMDL, it will default to 1.
                min_hidden_layer_rnn: Integer, optional
                    Upper Bounds of hidden layers of RNN used in RMDL, it will default to 5.
                min_nodes_rnn: Integer, optional
                    Lower bounds of nodes (LSTM or GRU) in each layer of RNN used in RMDL, it will default to 32.
                max_nodes_rnn: Integer, optional
                    Upper bounds of nodes (LSTM or GRU) in each layer of RNN used in RMDL, it will default to 128.
                min_hidden_layer_cnn: Integer, optional
                    Lower Bounds of hidden layers of CNN used in RMDL, it will default to 3.
                max_hidden_layer_cnn: Integer, optional
                    Upper Bounds of hidden layers of CNN used in RMDL, it will default to 10.
                min_nodes_cnn: Integer, optional
                    Lower bounds of nodes (2D convolution layer) in each layer of CNN used in RMDL, it will default to 128.
                min_nodes_cnn: Integer, optional
                    Upper bounds of nodes (2D convolution layer) in each layer of CNN used in RMDL, it will default to 512.
                random_state : Integer, optional
                    RandomState instance or None, optional (default=None)
                    If Integer, random_state is the seed used by the random number generator;
                random_optimizor : bool, optional
                    If False, all models use adam optimizer. If True, all models use random optimizers. it will default to True
                dropout: Float, optional
                    between 0 and 1. Fraction of the units to drop for the linear transformation of the inputs.

        """

    if len(x_train) != len(y_train):
        raise ValueError('shape of x_train and y_train must be equal'
                         'The x_train has ' + str(len(x_train)) +
                         'The x_train has' +
                         str(len(y_train)))

    if len(x_test) != len(y_test):
        raise ValueError('shape of x_test and y_test must be equal '
                         'The x_train has ' + str(len(x_test)) +
                         'The y_test has ' +
                         str(len(y_test)))

    np.random.seed(random_state)
    G.setup()
    y_proba = []

    score = []
    history_ = []
    if sparse_categorical:
        number_of_classes = np.max(y_train)+1
    else:
        number_of_classes = np.shape(y_train)[0]

    i =0
    while i < random_deep[0]:
        try:
            print("DNN ", i, "\n")
            model_DNN, model_tmp = BuildModel.Build_Model_DNN_Image(shape,
                                                                    number_of_classes,
                                                                    sparse_categorical,
                                                                    min_hidden_layer_dnn,
                                                                    max_hidden_layer_dnn,
                                                                    min_nodes_dnn,
                                                                    max_nodes_dnn,
                                                                    random_optimizor,
                                                                    dropout)


            filepath = "weights\weights_DNN_" + str(i) + ".hdf5"
            checkpoint = ModelCheckpoint(filepath,
                                         monitor='val_accuracy',
                                         verbose=1,
                                         save_best_only=True,
                                         mode='max')
            callbacks_list = [checkpoint]

            history = model_DNN.fit(x_train, y_train,
                                    validation_data=(x_test, y_test),
                                    epochs=epochs[0],
                                    batch_size=batch_size,
                                    callbacks=callbacks_list,
                                    verbose=2)
            history_.append(history)
            model_tmp.load_weights(filepath)

            if sparse_categorical == 0:
                model_tmp.compile(loss='sparse_categorical_crossentropy',
                                  optimizer='adam',
                                  metrics=['accuracy'])
            else:
                model_tmp.compile(loss='categorical_crossentropy',
                                  optimizer='adam',
                                  metrics=['accuracy'])

            y_pr = model_tmp.predict_classes(x_test, batch_size=batch_size)
            y_proba.append(np.array(y_pr))
            score.append(accuracy_score(y_test, y_pr))
            i = i + 1
            del model_tmp
            del model_DNN
            gc.collect()
        except:
            print("Error in model", i, "try to re-generate an other model")
            if max_hidden_layer_dnn > 3:
                max_hidden_layer_dnn -= 1
            if max_nodes_dnn > 256:
                max_nodes_dnn -= 8


    i =0
    while i < random_deep[1]:
        try:
            print("RNN ", i, "\n")
            model_RNN, model_tmp = BuildModel.Build_Model_RNN_Image(shape,
                                                                    number_of_classes,
                                                                    sparse_categorical,
                                                                    min_nodes_rnn,
                                                                    max_nodes_rnn,
                                                                    random_optimizor,
                                                                    dropout)

            filepath = "weights\weights_RNN_" + str(i) + ".hdf5"
            checkpoint = ModelCheckpoint(filepath,
                                         monitor='val_accuracy',
                                         verbose=1,
                                         save_best_only=True,
                                         mode='max')
            callbacks_list = [checkpoint]

            history = model_RNN.fit(x_train, y_train,
                                    validation_data=(x_test, y_test),
                                    epochs=epochs[1],
                                    batch_size=batch_size,
                                    verbose=2,
                                    callbacks=callbacks_list)

            model_tmp.load_weights(filepath)
            model_tmp.compile(loss='sparse_categorical_crossentropy',
                              optimizer='rmsprop',
                              metrics=['accuracy'])
            history_.append(history)

            y_pr = model_tmp.predict(x_test, batch_size=batch_size)
            y_pr = np.argmax(y_pr, axis=1)
            y_proba.append(np.array(y_pr))
            score.append(accuracy_score(y_test, y_pr))
            i = i+1
            del model_tmp
            del model_RNN
            gc.collect()
        except:
            print("Error in model", i, " try to re-generate another model")
            if max_hidden_layer_rnn > 3:
                max_hidden_layer_rnn -= 1
            if max_nodes_rnn > 64:
                max_nodes_rnn -= 2

    # reshape to be [samples][pixels][width][height]
    i=0
    while i < random_deep[2]:
        try:
            print("CNN ", i, "\n")
            model_CNN, model_tmp = BuildModel.Build_Model_CNN_Image(shape,
                                                                    number_of_classes,
                                                                    sparse_categorical,
                                                                    min_hidden_layer_cnn,
                                                                    max_hidden_layer_cnn,
                                                                    min_nodes_cnn,
                                                                    max_nodes_cnn,
                                                                    random_optimizor,
                                                                    dropout)

            filepath = "weights\weights_CNN_" + str(i) + ".hdf5"
            checkpoint = ModelCheckpoint(filepath, monitor='val_accuracy', verbose=1, save_best_only=True,
                                         mode='max')
            callbacks_list = [checkpoint]

            history = model_CNN.fit(x_train, y_train,
                                    validation_data=(x_test, y_test),
                                    epochs=epochs[2],
                                    batch_size=batch_size,
                                    callbacks=callbacks_list,
                                    verbose=2)
            history_.append(history)
            model_tmp.load_weights(filepath)
            model_tmp.compile(loss='sparse_categorical_crossentropy',
                              optimizer='adam',
                              metrics=['accuracy'])

            y_pr = model_tmp.predict_classes(x_test, batch_size=batch_size)
            y_proba.append(np.array(y_pr))
            score.append(accuracy_score(y_test, y_pr))
            i = i+1
            del model_tmp
            del model_CNN
            gc.collect()
        except:
            print("Error in model", i, " try to re-generate another model")
            if max_hidden_layer_cnn > 5:
                max_hidden_layer_cnn -= 1
            if max_nodes_cnn > 128:
                max_nodes_cnn -= 2
                min_nodes_cnn -= 1



    y_proba = np.array(y_proba).transpose()
    print(y_proba.shape)
    final_y = []
    for i in range(0, y_proba.shape[0]):
        a = np.array(y_proba[i, :])
        a = collections.Counter(a).most_common()[0][0]
        final_y.append(a)
    F_score = accuracy_score(y_test, final_y)
    F1 = f1_score(y_test, final_y, average='micro')
    F2 = f1_score(y_test, final_y, average='macro')
    F3 = f1_score(y_test, final_y, average='weighted')
    cnf_matrix = confusion_matrix(y_test, final_y)
    # Compute confusion matrix
    np.set_printoptions(precision=2)
    if plot:
        # Plot non-normalized confusion matrix
        classes = list(range(0,np.max(y_test)+1))
        Plot.plot_confusion_matrix(cnf_matrix, classes=classes,
                         title='Confusion matrix, without normalization')
        Plot.plot_confusion_matrix(cnf_matrix, classes=classes,normalize=True,
                              title='Confusion matrix, without normalization')

    if plot:
        Plot.RMDL_epoch(history_)

    print(y_proba.shape)
    print("Accuracy of",len(score),"models:",score)
    print("Accuracy:",F_score)
    print("F1_Micro:",F1)
    print("F1_Macro:",F2)
    print("F1_weighted:",F3)
コード例 #4
0
def Image_Classification(x_train,
                         y_train,
                         x_test,
                         y_test,
                         shape,
                         batch_size=128,
                         sparse_categorical=True,
                         random_deep=[3, 3, 3],
                         epochs=[500, 500, 500],
                         plot=False,
                         min_hidden_layer_dnn=1,
                         max_hidden_layer_dnn=8,
                         min_nodes_dnn=128,
                         max_nodes_dnn=1024,
                         min_hidden_layer_rnn=1,
                         max_hidden_layer_rnn=5,
                         min_nodes_rnn=32,
                         max_nodes_rnn=128,
                         min_hidden_layer_cnn=3,
                         max_hidden_layer_cnn=10,
                         min_nodes_cnn=128,
                         max_nodes_cnn=512,
                         random_state=42,
                         random_optimizor=True,
                         dropout=0.05):
    np.random.seed(random_state)
    G.setup()
    y_proba = []

    score = []
    history_ = []
    if sparse_categorical:
        number_of_classes = np.max(y_train) + 1
    else:
        number_of_classes = np.shape(y_train)[0]

    i = 0
    while i < random_deep[0]:
        try:
            print("DNN ", i, "\n")
            model_DNN, model_tmp = BuildModel.Build_Model_DNN_Image(
                shape, number_of_classes, sparse_categorical,
                min_hidden_layer_dnn, max_hidden_layer_dnn, min_nodes_dnn,
                max_nodes_dnn, random_optimizor, dropout)

            filepath = "weights\weights_DNN_" + str(i) + ".hdf5"
            checkpoint = ModelCheckpoint(filepath,
                                         monitor='val_acc',
                                         verbose=1,
                                         save_best_only=True,
                                         mode='max')
            callbacks_list = [checkpoint]

            history = model_DNN.fit(x_train,
                                    y_train,
                                    validation_data=(x_test, y_test),
                                    epochs=epochs[0],
                                    batch_size=batch_size,
                                    callbacks=callbacks_list,
                                    verbose=2)
            history_.append(history)
            model_tmp.load_weights(filepath)

            if sparse_categorical == 0:
                model_tmp.compile(loss='sparse_categorical_crossentropy',
                                  optimizer='adam',
                                  metrics=['accuracy'])
            else:
                model_tmp.compile(loss='categorical_crossentropy',
                                  optimizer='adam',
                                  metrics=['accuracy'])

            y_pr = model_tmp.predict_classes(x_test, batch_size=batch_size)
            y_proba.append(np.array(y_pr))
            score.append(accuracy_score(y_test, y_pr))
            i = i + 1
            del model_tmp
            del model_DNN
            gc.collect()
        except:
            print("Error in model", i, "try to re-generate an other model")
            if max_hidden_layer_dnn > 3:
                max_hidden_layer_dnn -= 1
            if max_nodes_dnn > 256:
                max_nodes_dnn -= 8

    i = 0
    while i < random_deep[1]:
        try:
            print("RNN ", i, "\n")
            model_RNN, model_tmp = BuildModel.Build_Model_RNN_Image(
                shape, number_of_classes, sparse_categorical, min_nodes_rnn,
                max_nodes_rnn, random_optimizor, dropout)

            filepath = "weights\weights_RNN_" + str(i) + ".hdf5"
            checkpoint = ModelCheckpoint(filepath,
                                         monitor='val_acc',
                                         verbose=1,
                                         save_best_only=True,
                                         mode='max')
            callbacks_list = [checkpoint]

            history = model_RNN.fit(x_train,
                                    y_train,
                                    validation_data=(x_test, y_test),
                                    epochs=epochs[1],
                                    batch_size=batch_size,
                                    verbose=2,
                                    callbacks=callbacks_list)

            model_tmp.load_weights(filepath)
            model_tmp.compile(loss='sparse_categorical_crossentropy',
                              optimizer='rmsprop',
                              metrics=['accuracy'])
            history_.append(history)

            y_pr = model_tmp.predict(x_test, batch_size=batch_size)
            y_pr = np.argmax(y_pr, axis=1)
            y_proba.append(np.array(y_pr))
            score.append(accuracy_score(y_test, y_pr))
            i = i + 1
            del model_tmp
            del model_RNN
            gc.collect()
        except:
            print("Error in model", i, " try to re-generate another model")
            if max_hidden_layer_rnn > 3:
                max_hidden_layer_rnn -= 1
            if max_nodes_rnn > 64:
                max_nodes_rnn -= 2

    # reshape to be [samples][pixels][width][height]
    i = 0
    while i < random_deep[2]:
        try:
            print("CNN ", i, "\n")
            model_CNN, model_tmp = BuildModel.Build_Model_CNN_Image(
                shape, number_of_classes, sparse_categorical,
                min_hidden_layer_cnn, max_hidden_layer_cnn, min_nodes_cnn,
                max_nodes_cnn, random_optimizor, dropout)

            filepath = "weights\weights_CNN_" + str(i) + ".hdf5"
            checkpoint = ModelCheckpoint(filepath,
                                         monitor='val_acc',
                                         verbose=1,
                                         save_best_only=True,
                                         mode='max')
            callbacks_list = [checkpoint]

            history = model_CNN.fit(x_train,
                                    y_train,
                                    validation_data=(x_test, y_test),
                                    epochs=epochs[2],
                                    batch_size=batch_size,
                                    callbacks=callbacks_list,
                                    verbose=2)
            history_.append(history)
            model_tmp.load_weights(filepath)
            model_tmp.compile(loss='sparse_categorical_crossentropy',
                              optimizer='adam',
                              metrics=['accuracy'])

            y_pr = model_tmp.predict_classes(x_test, batch_size=batch_size)
            y_proba.append(np.array(y_pr))
            score.append(accuracy_score(y_test, y_pr))
            i = i + 1
            del model_tmp
            del model_CNN
            gc.collect()
        except:
            print("Error in model", i, " try to re-generate another model")
            if max_hidden_layer_cnn > 5:
                max_hidden_layer_cnn -= 1
            if max_nodes_cnn > 128:
                max_nodes_cnn -= 2
                min_nodes_cnn -= 1

    y_proba = np.array(y_proba).transpose()
    print(y_proba.shape)
    final_y = []
    for i in range(0, y_proba.shape[0]):
        a = np.array(y_proba[i, :])
        a = collections.Counter(a).most_common()[0][0]
        final_y.append(a)
    F_score = accuracy_score(y_test, final_y)
    F1 = f1_score(y_test, final_y, average='micro')
    F2 = f1_score(y_test, final_y, average='macro')
    F3 = f1_score(y_test, final_y, average='weighted')
    cnf_matrix = confusion_matrix(y_test, final_y)
    # Compute confusion matrix
    np.set_printoptions(precision=2)
    if plot:
        # Plot non-normalized confusion matrix
        classes = list(range(0, np.max(y_test) + 1))
        Plot.plot_confusion_matrix(
            cnf_matrix,
            classes=classes,
            title='Confusion matrix, without normalization')
        Plot.plot_confusion_matrix(
            cnf_matrix,
            classes=classes,
            normalize=True,
            title='Confusion matrix, without normalization')

    if plot:
        Plot.RMDL_epoch(history_)

    print(y_proba.shape)
    print("Accuracy of", len(score), "models:", score)
    print("Accuracy:", F_score)
    print("F1_Micro:", F1)
    print("F1_Macro:", F2)
    print("F1_weighted:", F3)