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arXiv · 2204.13796

Instilling Type Knowledge in Language Models via Multi-Task QA

Shuyang Li·Mukund Sridhar·Chandana Satya Prakash·Jin Cao·Wael Hamza·Julian McAuley
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Abstract

Understanding human language often necessitates understanding entities and their place in a taxonomy of knowledge -- their types. Previous methods to learn entity types rely on training classifiers on datasets with coarse, noisy, and incomplete labels. We introduce a method to instill fine-grained type knowledge in language models with text-to-text pre-training on type-centric questions leveraging knowledge base documents and knowledge graphs. We create the WikiWiki dataset: entities and passages from 10M Wikipedia articles linked to the Wikidata knowledge graph with 41K types. Models trained on WikiWiki achieve state-of-the-art performance in zero-shot dialog state tracking benchmarks, accurately infer entity types in Wikipedia articles, and can discover new types deemed useful by human judges.

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Shuyang Li, Mukund Sridhar, Chandana Satya Prakash, Jin Cao, Wael Hamza, Julian McAuley. 2022-04-28. Instilling Type Knowledge in Language Models via Multi-Task QA. https://arxiv.org/abs/2204.13796

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