Search Results for author: Yongxiu Xu

Found 6 papers, 5 papers with code

S2F-NER: Exploring Sequence-to-Forest Generation for Complex Entity Recognition

no code implementations29 Oct 2023 Yongxiu Xu, Heyan Huang, Yue Hu

Named Entity Recognition (NER) remains challenging due to the complex entities, like nested, overlapping, and discontinuous entities.

named-entity-recognition Named Entity Recognition +2

A Boundary Offset Prediction Network for Named Entity Recognition

1 code implementation23 Oct 2023 Minghao Tang, Yongquan He, Yongxiu Xu, Hongbo Xu, Wenyuan Zhang, Yang Lin

By leveraging the guiding semantics of boundary offsets, BOPN establishes connections between non-entity and entity spans, enabling non-entity spans to function as additional positive samples for entity detection.

named-entity-recognition Named Entity Recognition +1

Learning to Correct Noisy Labels for Fine-Grained Entity Typing via Co-Prediction Prompt Tuning

1 code implementation23 Oct 2023 Minghao Tang, Yongquan He, Yongxiu Xu, Hongbo Xu, Wenyuan Zhang, Yang Lin

Fine-grained entity typing (FET) is an essential task in natural language processing that aims to assign semantic types to entities in text.

Entity Typing

Cross-modal Contrastive Learning for Multimodal Fake News Detection

1 code implementation25 Feb 2023 Longzheng Wang, Chuang Zhang, Hongbo Xu, Yongxiu Xu, Xiaohan Xu, Siqi Wang

An attention mechanism with an attention guidance module is implemented to help effectively and interpretably aggregate the aligned unimodal representations and the cross-modality correlations.

Contrastive Learning Fake News Detection +1

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