Chunping Ouyang

2 accepted papers

2023

Causal Intervention-based Few-Shot Named Entity Recognition

EMNLP 2023long findings

Few-shot named entity recognition (NER) systems aim to recognize new classes of entities with limited labeled samples. However, these systems face a significant challenge of overfitting compared to tasks with abundant samples. This overfitting is mainly caused by the spurious correlation resulting f…

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2023

CoVariance-based Causal Debiasing for Entity and Relation Extraction

Lin Ren, Yongbin Liu, Yixin Cao, Chunping Ouyang

EMNLP 2023long findings

Joint entity and relation extraction tasks aim to recognize named entities and extract relations simultaneously. Suffering from a variety of data biases, such as data selection bias, and distribution bias (out of distribution, long-tail distribution), serious concerns can be witnessed to threaten th…

Cited by 0 Source ↗Scholar ↗