Search results for "attention"

Building Transformer Models with Attention

Building Transformer Models with Attention Implementing a Neural Machine Translator from Scratch in Keras …another NLP book?This one is different! Handling text and human language is a tedious job. Not only is a lot of data cleansing needed, but multiple levels of preprocessing are also required depending on the algorithm you apply. But unarguably, the […]

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How to Implement Multi-Head Attention from Scratch in TensorFlow and Keras

We have already familiarized ourselves with the theory behind the Transformer model and its attention mechanism. We have already started our journey of implementing a complete model by seeing how to implement the scaled-dot product attention. We shall now progress one step further into our journey by encapsulating the scaled-dot product attention into a multi-head […]

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How to Implement Scaled Dot-Product Attention from Scratch in TensorFlow and Keras

Having familiarized ourselves with the theory behind the Transformer model and its attention mechanism, we’ll start our journey of implementing a complete Transformer model by first seeing how to implement the scaled-dot product attention. The scaled dot-product attention is an integral part of the multi-head attention, which, in turn, is an important component of both […]

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The Transformer Attention Mechanism

Before the introduction of the Transformer model, the use of attention for neural machine translation was implemented by RNN-based encoder-decoder architectures. The Transformer model revolutionized the implementation of attention by dispensing with recurrence and convolutions and, alternatively, relying solely on a self-attention mechanism.  We will first focus on the Transformer attention mechanism in this tutorial […]

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The Luong Attention Mechanism

The Luong attention sought to introduce several improvements over the Bahdanau model for neural machine translation, notably by introducing two new classes of attentional mechanisms: a global approach that attends to all source words and a local approach that only attends to a selected subset of words in predicting the target sentence.  In this tutorial, […]

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The Bahdanau Attention Mechanism

Conventional encoder-decoder architectures for machine translation encoded every source sentence into a fixed-length vector, regardless of its length, from which the decoder would then generate a translation. This made it difficult for the neural network to cope with long sentences, essentially resulting in a performance bottleneck.  The Bahdanau attention was proposed to address the performance […]

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Adding a Custom Attention Layer to a Recurrent Neural Network in Keras

Deep learning networks have gained immense popularity in the past few years. The “attention mechanism” is integrated with deep learning networks to improve their performance. Adding an attention component to the network has shown significant improvement in tasks such as machine translation, image recognition, text summarization, and similar applications. This tutorial shows how to add […]

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A Tour of Attention-Based Architectures

As the popularity of attention in machine learning grows, so does the list of neural architectures that incorporate an attention mechanism. In this tutorial, you will discover the salient neural architectures that have been used in conjunction with attention. After completing this tutorial, you will better understand how the attention mechanism is incorporated into different […]

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The Attention Mechanism from Scratch

The attention mechanism was introduced to improve the performance of the encoder-decoder model for machine translation. The idea behind the attention mechanism was to permit the decoder to utilize the most relevant parts of the input sequence in a flexible manner, by a weighted combination of all the encoded input vectors, with the most relevant […]

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What Is Attention?

Attention is becoming increasingly popular in machine learning, but what makes it such an attractive concept? What is the relationship between attention applied in artificial neural networks and its biological counterpart? What components would one expect to form an attention-based system in machine learning? In this tutorial, you will discover an overview of attention and […]

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