Xiwu Han


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QUB at SemEval-2017 Task 6: Cascaded Imbalanced Classification for Humor Analysis in Twitter
Xiwu Han | Gregory Toner
Proceedings of the 11th International Workshop on Semantic Evaluation (SemEval-2017)

This paper presents our submission to SemEval-2017 Task 6: #HashtagWars: Learning a Sense of Humor. There are two subtasks: A. Pairwise Comparison, and B. Semi-Ranking. Our assumption is that the distribution of humorous and non-humorous texts in real life language is naturally imbalanced. Using Naïve Bayes Multinomial with standard text-representation features, we approached Subtask B as a sequence of imbalanced classification problems, and optimized our system per the macro-average recall. Subtask A was then solved via the Semi-Ranking results. On the final test, our system was ranked 10th for Subtask A, and 3rd for Subtask B.


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Latent User Models for Online River Information Tailoring
Xiwu Han | Somayajulu Sripada | Kit Macleod | Antonio Ioris
Proceedings of the 8th International Natural Language Generation Conference (INLG)


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Train the Machine with What It Can Learn—Corpus Selection for SMT
Xiwu Han | Hanzhang Li | Tiejun Zhao
Proceedings of the 2nd Workshop on Building and Using Comparable Corpora: from Parallel to Non-parallel Corpora (BUCC)


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Improving English Subcategorization Acquisition with Diathesis Alternations as Heuristic Information
Xiwu Han | Tiejun Zhao | Xingshang Fu
Proceedings of the COLING/ACL 2006 Main Conference Poster Sessions

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Two-Fold Filtering for Chinese Subcategorization Acquisition with Diathesis Alternations Used as Heuristic Information
Xiwu Han | Tiejun Zhao
International Journal of Computational Linguistics & Chinese Language Processing, Volume 11, Number 2, June 2006


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Subcategorization Acquisition and Evaluation for Chinese Verbs
Xiwu Han | Tiejun Zhao | Haoliang Qi | Hao Yu
COLING 2004: Proceedings of the 20th International Conference on Computational Linguistics