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Lei Hei

2 papers hereh-index 219 citations5 works total

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Across the 2 of 2 papers where every author was matched, so the position is known.

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  • cs.CL2

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3 papers · 1 filter

cs.CL2025

Retrieval over Classification: Integrating Relation Semantics for Multimodal Relation Extraction

Lei Hei, Tingjing Liao, Yingxin Pei +4

Relation extraction (RE) aims to identify semantic relations between entities in unstructured text. Although recent work extends traditional RE to multimodal scenarios, most approa…

cs.CL2025

Resource-Friendly Dynamic Enhancement Chain for Multi-Hop Question Answering

Binquan Ji, Haibo Luo, Yifei Lu +6

Knowledge-intensive multi-hop question answering (QA) tasks, which require integrating evidence from multiple sources to address complex queries, often necessitate multiple rounds…

cs.CL2024

RTF: Region-based Table Filling Method for Relational Triple Extraction

Ning An, Lei Hei, Yong Jiang +4

Relational triple extraction is crucial work for the automatic construction of knowledge graphs. Existing methods only construct shallow representations from a token or token pair-…

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