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The DOI matches its Crossref record; 9 of the 9 references it cites were found in a registry or an index.

Fine-grained Fact Verification with Kernel Graph Attention Network

Open access
Liu, Zhenghao, Xiong, Chenyan, Sun, Maosong, Liu, Zhiyuan·2020·Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics

Abstract

Fact Verification requires fine-grained natural language inference capability that finds subtle clues to identify the syntactical and semantically correct but not well-supported claims.This paper presents Kernel Graph Attention Network (KGAT), which conducts more finegrained fact verification with kernel-based attentions.Given a claim and a set of potential evidence sentences that form an evidence graph, KGAT introduces node kernels, which better measure the importance of the evidence node, and edge kernels, which conduct fine-grained evidence propagation in the graph, into Graph Attention Networks for more accurate fact verification.KGAT achieves a 70.38%FEVER score and significantly outperforms existing fact verification models on FEVER, a large-scale benchmark for fact verification.Our analyses illustrate that, compared to dot-product attentions, the kernelbased attention concentrates more on relevant evidence sentences and meaningful clues in the evidence graph, which is the main source of KGAT's effectiveness.All source codes of this work are available at https://github. com/thunlp/KernelGAT.

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Metadata

Authors
Liu, Z., Xiong, C., Sun, M., & Liu, Z.
Venue
Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics
Published
2020
Pages
7342-7351
OpenAlex
W3016482365
Cited by
183
References
9
FWCI
12.20
Type
conference paper
Language
en
Open access
hybrid

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