Keras

Learn Keras by Example – k-Fold Cross-Validating Neural Networks

Hits: 29 k-Fold Cross-Validating Neural Networks If we have smaller data it can be useful to benefit from k-fold cross-validation to maximize our ability to evaluate the neural network’s performance. This is possible in Keras because we can “wrap” any neural network such that it can use the evaluation features available in scikit-learn, including k-fold …

Learn Keras by Example – How to Visualize Performance History

Hits: 9 Visualize Performance History Preliminaries /* Load libraries */ import numpy as np from keras.datasets import imdb from keras.preprocessing.text import Tokenizer from keras import models from keras import layers import matplotlib.pyplot as plt /* Set random seed */ np.random.seed(0) Using TensorFlow backend. Load Movie Review Data /* Set the number of features we want …

Learn Keras by Example – How to Visualize Neural Network Architecture

Hits: 20 Visualize Neural Network Architecture Preliminaries /* Load libraries */ from keras import models from keras import layers from IPython.display import SVG from keras.utils.vis_utils import model_to_dot from keras.utils import plot_model Using TensorFlow backend. Construct Neural Network Architecture /* Start neural network */ network = models.Sequential() /* Add fully connected layer with a ReLU activation …

Learn Keras by Example – How to Visualize Loss History

Hits: 9 Visualize Loss History Preliminaries /* Load libraries */ import numpy as np from keras.datasets import imdb from keras.preprocessing.text import Tokenizer from keras import models from keras import layers import matplotlib.pyplot as plt /* Set random seed */ np.random.seed(0) Using TensorFlow backend. Load Movie Review Data /* Set the number of features we want …

Learn Keras by Example – How to Save Model Training Progress

Hits: 4 Save Model Training Progress Preliminaries /* Load libraries */ import numpy as np from keras.datasets import imdb from keras.preprocessing.text import Tokenizer from keras import models from keras import layers from keras.callbacks import ModelCheckpoint #/* Set random seed */ np.random.seed(0) Load IMDB Movie Review Data /* Set the number of features we want */ …

Learn Keras by Example – Preprocessing Data For Neural Networks

Hits: 6 Preprocessing Data For Neural Networks Typically, a neural network’s parameters are initialized (i.e. created) as small random numbers. Neural networks often behave poorly when the feature values much larger than parameter values. Furthermore, since an observation’s feature values will are combined as they pass through individual units, it is important that all features …

Learn Keras by Example – How to do Neural Network Weight Regularization

Hits: 10 Neural Network Weight Regularization Preliminaries /* Load libraries */ import numpy as np from keras.datasets import imdb from keras.preprocessing.text import Tokenizer from keras import models from keras import layers from keras import regularizers /* Set random seed */ np.random.seed(0) Using TensorFlow backend. Load Movie Review Text Data /* Set the number of features …

Learn Keras by Example – How to do Neural Network Early Stopping

Hits: 8 Neural Network Early Stopping Preliminaries /* Load libraries */ import numpy as np from keras.datasets import imdb from keras.preprocessing.text import Tokenizer from keras import models from keras import layers from keras.callbacks import EarlyStopping, ModelCheckpoint /* Set random seed */ np.random.seed(0) Using TensorFlow backend. Load Movie Review Text Data /* Set the number of …

Learn Keras by Example – How to Build LSTM Recurrent Neural Network

Hits: 11 LSTM Recurrent Neural Network Oftentimes we have text data that we want to classify. While it is possible to use a type of convolutional network, we are going to focus on a more popular option: the recurrent neural network. The key feature of recurrent neural networks is that information loops back in the …

Machine Learning for Beginners in Python: How to Build Feedforward Neural Network For Binary Classification

Hits: 8 Feedforward Neural Network For Binary Classification Preliminaries /* Load libraries */ import numpy as np from keras.datasets import imdb from keras.preprocessing.text import Tokenizer from keras import models from keras import layers /* Set random seed */ np.random.seed(0) Using TensorFlow backend. Load Movie Review Data /* Set the number of features we want */ …

Learn Keras by Example – How to Build Convolutional Neural Network

Hits: 3 Convolutional Neural Network Preliminaries import numpy as np from keras.datasets import mnist from keras.models import Sequential from keras.layers import Dense, Dropout, Flatten from keras.layers.convolutional import Conv2D, MaxPooling2D from keras.utils import np_utils from keras import backend as K /* Set that the color channel value will be first */ K.set_image_data_format(‘channels_first’) /* Set seed */ …

How to setup a text classification model in Keras using CNN

Hits: 40 (How to setup a text classification model in Keras using CNN) In this Learn through Codes example, How to setup a text classification model in Keras using CNN.  How_to_setup_a_text_classification_model_in_Keras_using_CNN   Python Example for Beginners Special 95% discount 2000+ Applied Machine Learning & Data Science Recipes Portfolio Projects for Aspiring Data Scientists: Tabular …

How to setup an object classification model in Keras using CNN

Hits: 12 (How to setup an object classification model in Keras using CNN) In this Learn through Codes example, How to setup an object classification model in Keras using CNN.  How_to_setup_an_object_classification_model_in_Keras_using_CNN   Python Example for Beginners Special 95% discount 2000+ Applied Machine Learning & Data Science Recipes Portfolio Projects for Aspiring Data Scientists: Tabular …

How to setup MLP and CNN for MNIST dataset in Keras

Hits: 35 (How to setup MLP and CNN for MNIST dataset in Keras) In this Learn through Codes example, How to setup MLP and CNN for MNIST dataset in Keras.  How_to_setup_MLP_and_CNN_for_MNIST_dataset_in_Keras   Python Example for Beginners Special 95% discount 2000+ Applied Machine Learning & Data Science Recipes Portfolio Projects for Aspiring Data Scientists: Tabular …

How to setup Time Based Learning Rate Decay in Keras

Hits: 9 (How to setup Time Based Learning Rate Decay in Keras) In this Learn through Codes example, How to setup Time Based Learning Rate Decay in Keras.  How_to_setup_Learning_Rate_Decay_in_Keras   Python Example for Beginners Special 95% discount 2000+ Applied Machine Learning & Data Science Recipes Portfolio Projects for Aspiring Data Scientists: Tabular Text & …