Research Area:  Machine Learning

Abstract:

The Transformer is a sequence model that forgoes traditional recurrent architectures in favor of a fully attention-based approach. Besides improving performance, an advantage of using attention is that it can also help to interpret a model by showing how the model assigns weight to different input elements. However, the multi-layer, multi-head attention mechanism in the Transformer model can be difficult to decipher. To make the model more accessible, we introduce an open-source tool that visualizes attention at multiple scales, each of which provides a unique perspective on the attention mechanism. We demonstrate the tool on BERT and OpenAI GPT-2 and present three example use cases: detecting model bias, locating relevant attention heads, and linking neurons to model behavior.

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Author(s) Name:  Jesse Vig

Publisher name:  arXiv:1906.05714

DOI:  10.48550/arXiv.1906.05714

Volume Information:  

Paper Link:   https://arxiv.org/abs/1906.05714