Cam-Tu Nguyen

Also published as: Cẩm Tú Nguyễn


2018

pdf
Joint learning of frequency and word embeddings for multilingual readability assessment
Dieu-Thu Le | Cam-Tu Nguyen | Xiaoliang Wang
Proceedings of the 5th Workshop on Natural Language Processing Techniques for Educational Applications

This paper describes two models that employ word frequency embeddings to deal with the problem of readability assessment in multiple languages. The task is to determine the difficulty level of a given document, i.e., how hard it is for a reader to fully comprehend the text. The proposed models show how frequency information can be integrated to improve the readability assessment. The experimental results testing on both English and Chinese datasets show that the proposed models improve the results notably when comparing to those using only traditional word embeddings.

pdf
Dave the debater: a retrieval-based and generative argumentative dialogue agent
Dieu Thu Le | Cam-Tu Nguyen | Kim Anh Nguyen
Proceedings of the 5th Workshop on Argument Mining

In this paper, we explore the problem of developing an argumentative dialogue agent that can be able to discuss with human users on controversial topics. We describe two systems that use retrieval-based and generative models to make argumentative responses to the users. The experiments show promising results although they have been trained on a small dataset.

2008

pdf
Word Segmentation of Vietnamese Texts: a Comparison of Approaches
Quang Thắng Đinh | Hồng Phương Lê | Thị Minh Huyền Nguyễn | Cẩm Tú Nguyễn | Mathias Rossignol | Xuân Lương Vũ
Proceedings of the Sixth International Conference on Language Resources and Evaluation (LREC'08)

We present in this paper a comparison between three segmentation systems for the Vietnamese language. Indeed, the majority of Vietnamese words is built by semantic composition from about 7,000 syllables, which also have a meaning as isolated words. So the identification of word boundaries in a text is not a simple task, and ambiguities often appear. Beyond the presentation of the tested systems, we also propose a standard definition for word segmentation in Vietnamese, and introduce a reference corpus developed for the purpose of evaluating such a task. The results observed confirm that it can be relatively well treated by automatic means, although a solution needs to be found to take into account out-of-vocabulary words.

2006

pdf
Vietnamese Word Segmentation with CRFs and SVMs: An Investigation
Cam-Tu Nguyen | Trung-Kien Nguyen | Xuan-Hieu Phan | Le-Minh Nguyen | Quang-Thuy Ha
Proceedings of the 20th Pacific Asia Conference on Language, Information and Computation