Datasets for Natural Language Processing

Last Updated on August 14, 2020 You need datasets to practice on when getting started with deep learning for natural language processing tasks. It is better to use small datasets that you can download quickly and do not take too long to fit models. Further, it is also helpful to use standard datasets that are well understood and widely used so that you can compare your results to see if you are making progress. In this post, you will discover […]

Read more

How to Encode Text Data for Machine Learning with scikit-learn

Last Updated on June 28, 2020 Text data requires special preparation before you can start using it for predictive modeling. The text must be parsed to remove words, called tokenization. Then the words need to be encoded as integers or floating point values for use as input to a machine learning algorithm, called feature extraction (or vectorization). The scikit-learn library offers easy-to-use tools to perform both tokenization and feature extraction of your text data. In this tutorial, you will discover […]

Read more

How to Prepare Text Data for Deep Learning with Keras

Last Updated on August 7, 2019 You cannot feed raw text directly into deep learning models. Text data must be encoded as numbers to be used as input or output for machine learning and deep learning models. The Keras deep learning library provides some basic tools to help you prepare your text data. In this tutorial, you will discover how you can use Keras to prepare your text data. After completing this tutorial, you will know: About the convenience methods […]

Read more

How to Use Word Embedding Layers for Deep Learning with Keras

Last Updated on September 3, 2020 Word embeddings provide a dense representation of words and their relative meanings. They are an improvement over sparse representations used in simpler bag of word model representations. Word embeddings can be learned from text data and reused among projects. They can also be learned as part of fitting a neural network on text data. In this tutorial, you will discover how to use word embeddings for deep learning in Python with Keras. After completing this […]

Read more

How to Develop Word Embeddings in Python with Gensim

Last Updated on September 3, 2020 Word embeddings are a modern approach for representing text in natural language processing. Word embedding algorithms like word2vec and GloVe are key to the state-of-the-art results achieved by neural network models on natural language processing problems like machine translation. In this tutorial, you will discover how to train and load word embedding models for natural language processing applications in Python using Gensim. After completing this tutorial, you will know: How to train your own […]

Read more

A Gentle Introduction to the Bag-of-Words Model

Last Updated on August 7, 2019 The bag-of-words model is a way of representing text data when modeling text with machine learning algorithms. The bag-of-words model is simple to understand and implement and has seen great success in problems such as language modeling and document classification. In this tutorial, you will discover the bag-of-words model for feature extraction in natural language processing. After completing this tutorial, you will know: What the bag-of-words model is and why it is needed to […]

Read more

What Are Word Embeddings for Text?

Last Updated on August 7, 2019 Word embeddings are a type of word representation that allows words with similar meaning to have a similar representation. They are a distributed representation for text that is perhaps one of the key breakthroughs for the impressive performance of deep learning methods on challenging natural language processing problems. In this post, you will discover the word embedding approach for representing text data. After completing this post, you will know: What the word embedding approach […]

Read more

How Does Attention Work in Encoder-Decoder Recurrent Neural Networks

Last Updated on August 7, 2019 Attention is a mechanism that was developed to improve the performance of the Encoder-Decoder RNN on machine translation. In this tutorial, you will discover the attention mechanism for the Encoder-Decoder model. After completing this tutorial, you will know: About the Encoder-Decoder model and attention mechanism for machine translation. How to implement the attention mechanism step-by-step. Applications and extensions to the attention mechanism. Kick-start your project with my new book Deep Learning for Natural Language […]

Read more

How to Prepare Movie Review Data for Sentiment Analysis (Text Classification)

Last Updated on August 14, 2020 Text data preparation is different for each problem. Preparation starts with simple steps, like loading data, but quickly gets difficult with cleaning tasks that are very specific to the data you are working with. You need help as to where to begin and what order to work through the steps from raw data to data ready for modeling. In this tutorial, you will discover how to prepare movie review text data for sentiment analysis, […]

Read more

How to Develop an Encoder-Decoder Model with Attention in Keras

import tensorflow as tf from keras import backend as K from keras import regularizers, constraints, initializers, activations from keras.layers.recurrent import Recurrent, _time_distributed_dense from keras.engine import InputSpec   tfPrint = lambda d, T: tf.Print(input_=T, data=[T, tf.shape(T)], message=d)   class AttentionDecoder(Recurrent):       def __init__(self, units, output_dim,                  activation=‘tanh’,                  return_probabilities=False,                  name=‘AttentionDecoder’,                  kernel_initializer=‘glorot_uniform’,                  recurrent_initializer=‘orthogonal’,                  bias_initializer=‘zeros’,                  kernel_regularizer=None,                  bias_regularizer=None,                  activity_regularizer=None,                  kernel_constraint=None, To finish reading, please visit source site

Read more
1 804 805 806 807 808 905