no code implementations • 2 Feb 2024 • Xiaoxi Li, Zhicheng Dou, Yujia Zhou, Fangchao Liu
Through generative retrieval (GR) approach, language models can achieve superior retrieval performance by directly generating relevant document identifiers (DocIDs).
1 code implementation • 23 May 2023 • Peitian Zhang, Zheng Liu, Yujia Zhou, Zhicheng Dou, Fangchao Liu, Zhao Cao
On top of the term-set DocID, we propose a permutation-invariant decoding algorithm, with which the term set can be generated in any permutation yet will always lead to the corresponding document.
1 code implementation • ACL 2022 • Fangchao Liu, Hongyu Lin, Xianpei Han, Boxi Cao, Le Sun
Low-shot relation extraction~(RE) aims to recognize novel relations with very few or even no samples, which is critical in real scenario application.
1 code implementation • ACL 2022 • Boxi Cao, Hongyu Lin, Xianpei Han, Fangchao Liu, Le Sun
Prompt-based probing has been widely used in evaluating the abilities of pretrained language models (PLMs).
no code implementations • ACL 2021 • Fangchao Liu, Lingyong Yan, Hongyu Lin, Xianpei Han, Le Sun
Open relation extraction aims to cluster relation instances referring to the same underlying relation, which is a critical step for general relation extraction.
1 code implementation • 8 Dec 2020 • Lingyong Yan, Xianpei Han, Le Sun, Fangchao Liu, Ning Bian
By re-organizing all sentences about an entity as a document and extracting relations via querying the document with relation-specific questions, the document-based DS paradigm can simultaneously encode and exploit all sentence-level, inter-sentence-level, and entity-level evidence.
Ranked #1 on Relationship Extraction (Distant Supervised) on NYT