Search Results for author: Hengran Zhang

Found 3 papers, 2 papers with code

Are Large Language Models Good at Utility Judgments?

1 code implementation28 Mar 2024 Hengran Zhang, Ruqing Zhang, Jiafeng Guo, Maarten de Rijke, Yixing Fan, Xueqi Cheng

Retrieval-augmented generation (RAG) is considered to be a promising approach to alleviate the hallucination issue of large language models (LLMs), and it has received widespread attention from researchers recently.

Answer Generation Benchmarking +4

From Relevance to Utility: Evidence Retrieval with Feedback for Fact Verification

1 code implementation18 Oct 2023 Hengran Zhang, Ruqing Zhang, Jiafeng Guo, Maarten de Rijke, Yixing Fan, Xueqi Cheng

We argue that, rather than relevance, for FV we need to focus on the utility that a claim verifier derives from the retrieved evidence.

Fact Verification Retrieval

GCRE-GPT: A Generative Model for Comparative Relation Extraction

no code implementations15 Mar 2023 Yequan Wang, Hengran Zhang, Aixin Sun, Xuying Meng

Given comparative text, comparative relation extraction aims to extract two targets (\eg two cameras) in comparison and the aspect they are compared for (\eg image quality).

Relation Relation Extraction

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