This paper proposes a new model for extracting an interpretable sentence embedding by introducing self-attention. Instead of using a vector, we use a 2-D matrix to represent the embedding, with each row of the matrix attending on a different part of the sentence. We also propose a self-attention mechanism and a special regularization term for the model. As a side effect, the embedding comes with an easy way of visualizing what specific parts of the sentence are encoded into the embedding. We evaluate our model on 3 different tasks: author profiling, sentiment classification, and textual entailment. Results show that our model yields a significant performance gain compared to other sentence embedding methods in all of the 3 tasks.
A Structured Self-attentive Sentence Embedding
Zhouhan Lin,Minwei Feng,C. D. Santos,Mo Yu,Bing Xiang,Bowen Zhou,Yoshua Bengio
Published 2017 in International Conference on Learning Representations
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- Publication year
2017
- Venue
International Conference on Learning Representations
- Publication date
2017-03-09
- Fields of study
Computer Science
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