no code implementations • EMNLP 2021 • Chenchen Ye, Linhai Zhang, Yulan He, Deyu Zhou, Jie Wu
The other is label heterogeneous graph, which is constructed based on both the labels’ hierarchy and their statistical dependencies.
no code implementations • EMNLP 2021 • Deyu Zhou, Jianan Wang, Linhai Zhang, Yulan He
Implicit sentiment analysis, aiming at detecting the sentiment of a sentence without sentiment words, has become an attractive research topic in recent years.
no code implementations • Findings (ACL) 2022 • Tao Wang, Linhai Zhang, Chenchen Ye, Junxi Liu, Deyu Zhou
Medical code prediction from clinical notes aims at automatically associating medical codes with the clinical notes.
no code implementations • Findings (EMNLP) 2021 • Linhai Zhang, Deyu Zhou, Chao Lin, Yulan He
Therefore, in this paper, multi-hop relation detection is considered as a multi-label learning problem.
no code implementations • Findings (EMNLP) 2021 • Deyu Zhou, Yanzheng Xiang, Linhai Zhang, Chenchen Ye, Qian-Wen Zhang, Yunbo Cao
However, most of existing approaches only detect one single path to obtain the answer without considering other correct paths, which might affect the final performance.
no code implementations • ACL 2022 • Linhai Zhang, Xuemeng Hu, Boyu Wang, Deyu Zhou, Qian-Wen Zhang, Yunbo Cao
Recent years have witnessed growing interests in incorporating external knowledge such as pre-trained word embeddings (PWEs) or pre-trained language models (PLMs) into neural topic modeling.
no code implementations • COLING 2022 • Linhai Zhang, Deyu Zhou
Due to their incompleteness, a fundamental task for KGs, which is known as Knowledge Graph Completion (KGC), is to perform link prediction and infer new facts based on the known facts.
no code implementations • 10 Mar 2024 • Xin Zhang, Linhai Zhang, Deyu Zhou, Guoqiang Xu
Due to the sparsity of user data, sentiment analysis on user reviews in e-commerce platforms often suffers from poor performance, especially when faced with extremely sparse user data or long-tail labels.
no code implementations • 5 Mar 2024 • Congzhi Zhang, Linhai Zhang, Deyu Zhou, Guoqiang Xu
In specific, causal intervention is implemented by designing the prompts without accessing the parameters and logits of LLMs. The chain-of-thoughts generated by LLMs are employed as the mediator variable and the causal effect between the input prompt and the output answers is calculated through front-door adjustment to mitigate model biases.
1 code implementation • 5 Mar 2024 • Congzhi Zhang, Linhai Zhang, Deyu Zhou
Conventional multi-hop fact verification models are prone to rely on spurious correlations from the annotation artifacts, leading to an obvious performance decline on unbiased datasets.
1 code implementation • 2 Mar 2024 • Jialong Wu, Linhai Zhang, Deyu Zhou, Guoqiang Xu
However, most of the present debiasing methods focus on single-variable causal inference, which is not suitable for ABSA with two input variables (the target aspect and the review).
Aspect-Based Sentiment Analysis Aspect-Based Sentiment Analysis (ABSA) +3
1 code implementation • 2 Mar 2024 • Linhai Zhang, Jialong Wu, Deyu Zhou, Guoqiang Xu
For poor model calibration, we incorporate the regularization method during LoRA training to keep the model from being over-confident, and the Monte-Carlo dropout mechanism is employed to enhance the uncertainty estimation.
1 code implementation • COLING 2022 • Zeng Yang, Linhai Zhang, Deyu Zhou
Current few-shot NER methods focus on leveraging existing datasets in the rich-resource domains which might fail in a training-from-scratch setting where no source-domain data is used.