Khanh Quoc Tran


2023

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ViHOS: Hate Speech Spans Detection for Vietnamese
Phu Gia Hoang | Canh Duc Luu | Khanh Quoc Tran | Kiet Van Nguyen | Ngan Luu-Thuy Nguyen
Proceedings of the 17th Conference of the European Chapter of the Association for Computational Linguistics

The rise in hateful and offensive language directed at other users is one of the adverse side effects of the increased use of social networking platforms. This could make it difficult for human moderators to review tagged comments filtered by classification systems. To help address this issue, we present the ViHOS (Vietnamese Hate and Offensive Spans) dataset, the first human-annotated corpus containing 26k spans on 11k comments. We also provide definitions of hateful and offensive spans in Vietnamese comments as well as detailed annotation guidelines. Besides, we conduct experiments with various state-of-the-art models. Specifically, XLM-R_Large achieved the best F1-scores in Single span detection and All spans detection, while PhoBERT_Large obtained the highest in Multiple spans detection. Finally, our error analysis demonstrates the difficulties in detecting specific types of spans in our data for future research. Our dataset is released on GitHub.

2022

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SEND: A Simple and Efficient Noise Detection Algorithm for Vietnamese Real Estate Posts
Khanh Quoc Tran | An Tran-Hoai Le | An Trong Nguyen | Tung Tran Nguyen Doan | Son Huynh Thanh | Bao Le Hoang | Hoang Nguyen Minh | Triet Minh Thai | Hoang Le Huy | Dang T. Huynh | Binh T. Nguyen | Nhi Y. T. Ho | Trung T. Nguyen
Proceedings of the 36th Pacific Asia Conference on Language, Information and Computation

2021

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ViVQA: Vietnamese Visual Question Answering
Khanh Quoc Tran | An Trong Nguyen | An Tran-Hoai Le | Kiet Van Nguyen
Proceedings of the 35th Pacific Asia Conference on Language, Information and Computation