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Technical notes: Syntax-aware Representation Learning With Pointer Networks

2019/03/17 by Matteo Grella, Grella, Matteo
Computer Science · #Natural Language Processing Techniques #Topic Modeling #Speech and dialogue systems

paper · pdf · doi:10.48550/arxiv.1903.07161

Abstract

This is a work-in-progress report, which aims to share preliminary results of a novel sequence-to-sequence schema for dependency parsing that relies on a combination of a BiLSTM and two Pointer Networks (Vinyals et al., 2015), in which the final softmax function has been replaced with the logistic regression. The two pointer networks co-operate to develop a latent syntactic knowledge, by learning the lexical properties of "selection" and the lexical properties of "selectability", respectively. At the moment and without fine-tuning, the parser implementation gets a UAS of 93.14% on the English Penn-treebank (Marcus et al., 1993) annotated with Stanford Dependencies: 2-3% under the SOTA but yet attractive as a baseline of the approach.

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