Weifeng Su


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LenAtten: An Effective Length Controlling Unit For Text Summarization
Zhongyi Yu | Zhenghao Wu | Hao Zheng | Zhe XuanYuan | Jefferson Fong | Weifeng Su
Findings of the Association for Computational Linguistics: ACL-IJCNLP 2021


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BNU-HKBU UIC NLP Team 2 at SemEval-2019 Task 6: Detecting Offensive Language Using BERT model
Zhenghao Wu | Hao Zheng | Jianming Wang | Weifeng Su | Jefferson Fong
Proceedings of the 13th International Workshop on Semantic Evaluation

In this study we deal with the problem of identifying and categorizing offensive language in social media. Our group, BNU-HKBU UIC NLP Team2, use supervised classification along with multiple version of data generated by different ways of pre-processing the data. We then use the state-of-the-art model Bidirectional Encoder Representations from Transformers, or BERT (Devlin et al, 2018), to capture linguistic, syntactic and semantic features. Long range dependencies between each part of a sentence can be captured by BERT’s bidirectional encoder representations. Our results show 85.12% accuracy and 80.57% F1 scores in Subtask A (offensive language identification), 87.92% accuracy and 50% F1 scores in Subtask B (categorization of offense types), and 69.95% accuracy and 50.47% F1 score in Subtask C (offense target identification). Analysis of the results shows that distinguishing between targeted and untargeted offensive language is not a simple task. More work needs to be done on the unbalance data problem in Subtasks B and C. Some future work is also discussed.


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A Kernel PCA Method for Superior Word Sense Disambiguation
Dekai Wu | Weifeng Su | Marine Carpuat
Proceedings of the 42nd Annual Meeting of the Association for Computational Linguistics (ACL-04)

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Semi-supervised training of a Kernel PCA-Based Model for Word Sense Disambiguation
Weifeng Su | Marine Carpuat | Dekai Wu
COLING 2004: Proceedings of the 20th International Conference on Computational Linguistics

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Augmenting ensemble classification for Word Sense Disambiguation with a kernel PCA model
Marine Carpuat | Weifeng Su | Dekai Wu
Proceedings of SENSEVAL-3, the Third International Workshop on the Evaluation of Systems for the Semantic Analysis of Text


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Cross-Lingual Text Filtering Based on Text Concepts and kNN
Shaozi Li | Weifeng Su | Tangqiu Li | Huowang Chen
Proceedings of the 17th Pacific Asia Conference on Language, Information and Computation


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基於文本概念和kNN的跨語種文本過濾 (Cross-Language Text Filtering Based on Text Concepts and kNN) [In Chinese
Weifeng Su | Shaozi Li | Tanqiu Li | Wenjian You
International Journal of Computational Linguistics & Chinese Language Processing, Volume 7, Number 1, February 2002: Special Issue on HowNet and Its Applications