I am a Research Fellow at RMIT University working with Mark Sanderson and Falk Scholer on summarization. My background is in computer science, specialized in natural language processing and information retrieval. My recent work has focused on summarization, question answering, ranking, and representation. Previously I worked a lot on index pruning and unsupervised learning methods.

I received my doctorate in 2013 from National Taiwan University. Prior to that, I worked with my advisor Jieh Hsiang at National Taiwan University, Andrew Gordon at ICT/USC, and Lee-Feng Chien at Academia Sinica. See my CV for more info.

I'm also on twitter and github.

Publications

Kevin Ong, Ruey-Cheng Chen, and Falk Scholer. 2016. RMIT at the NTCIR-12 MobileClick-2: iUnit Ranking and Summarization Subtasks. In Proceedings of NTCIR-12, pages 147–150. pdf

Liu Yang, Qingyao Ai, Damiano Spina, Ruey-Cheng Chen, Liang Pang, W. Bruce Croft, Jiafeng Guo, and Falk Scholer. 2016. Beyond factoid QA: Effective methods for non-factoid answer sentence retrieval. In Proceedings of ECIR '16, pages 115–128. Springer. pdf

Ruey-Cheng Chen, J. Shane Culpepper, Tadele Tadela Damessie, Timothy Jones, Ahmed Mourad, Kevin Ong, Falk Scholer, and Evi Yulianti. 2015. RMIT at the TREC 2015 LiveQA Track. In Proceedings of TREC 2015. pdf

Ruey-Cheng Chen, Damiano Spina, W. Bruce Croft, Mark Sanderson, and Falk Scholer. 2015. Harnessing semantics for answer sentence retrieval. In Proceedings of the Eighth Workshop on Exploiting Semantic Annotations in Information Retrieval, ESAIR '15 (CIKM workshop), pages 21-27. ACM. pdf slides

Ruey-Cheng Chen, Chia-Jung Lee, and W. Bruce Croft. 2015. On divergence measures and static index pruning. In Proceedings of ICTIR '15, pages 151-160. ACM. pdf slides

Ruey-Cheng Chen. 2014. Incremental learning for fully unsupervised word segmentation using penalized likelihood and model selection. Unpublished. pdf

Ruey-Cheng Chen. 2013. An improved MDL-based compression algorithm for unsupervised word segmentation. In Proceedings of ACL '13, pages 166-170. Association for Computational Linguistics. pdf poster

Ruey-Cheng Chen and Chia-Jung Lee. 2013. An information-theoretic account of static index pruning. In Proceedings of SIGIR '13, pages 163-172. ACM. pdf slides

Ruey-Cheng Chen. 2013. Information preservation and its application to natural language processing. PhD Dissertation. National Taiwan University. pdf

Ruey-Cheng Chen, Chia-Jung Lee, Chiung-Min Tsai, and Jieh Hsiang. 2012. Information preservation in static index pruning. In Proceedings of CIKM '12, pages 2487-2490. ACM. pdf poster

Ruey-Cheng Chen, Chiung-Min Tsai, and Jieh Hsiang. 2012. A regularized compression method to unsupervised word segmentation. In Proceedings of the Twelfth Meeting of the the Special Interest Group on Computational Morphology and Phonology, SIGMORPHON '12 (NAACL workshop), pages 26-34. Association for Computational Linguistics. pdf

Wei-Yen Day, Chun-Yi Chi, Ruey-Cheng Chen, and Pu-Jen Cheng. 2010. Sampling the web as training data for text classification. International Journal of Digital Library Systems (IJDLS), 1(4):24-42. publisher

Ruey-Cheng Chen, Chiung-Min Tsai, and Jieh Hsiang. 2010. Relevance model revisited: With multiple document representations. In Proceedings of AIRS '10, pages 37-48. Springer-Verlag. pdf

Ruey-Cheng Chen, Reid Swanson, and Andrew Gordon. 2010. An adaptation of topic modeling to sentences. Unpublished. pdf

Chia-Jung Lee, Yi-Chun Lin, Ruey-Cheng Chen, Pei-Sen Liu, and Pu-Jen Cheng. 2009. Query formulation by selecting good terms. In Proceedings of the 21st Conference on Computational Linguistics and Speech Processing, ROCLING '09, pages 69-84, Taichung, Taiwan. pdf

Wei-Yen Day, Chun-Yi Chi, Ruey-Cheng Chen, Pu-Jen Cheng, and Pei-Sen Liu. 2009. Web mining for unsupervised classification. In Proceedings of the 21st Conference on Computational Linguistics and Speech Processing, ROCLING '09, pages 53-68, Taichung, Taiwan. pdf

Chia-Jung Lee, Yi-Chun Lin, Ruey-Cheng Chen, and Pu-Jen Cheng. 2009. Selecting effective terms for query formulation. In Proceedings of AIRS '09, pages 168-180. Springer-Verlag. pdf

Chia-Jung Lee, Ruey-Cheng Chen, Shao-Hang Kao, and Pu-Jen Cheng. 2009. A term dependency-based approach for query terms ranking. In Proceedings of CIKM '09, pages 1267-1276. ACM. pdf

Shuo-Peng Liao, Pu-Jen Cheng, Ruey-Cheng Chen, and Lee-Feng Chien. 2005. LiveImage: Organizing Web images by relevant concepts. In Proceedings of the Workshop on the Sciences of the Artificial, WSA '05, pages 210-220, Hualien, Taiwan. pdf

Pu-Jen Cheng, Jei-Wen Teng, Ruey-Cheng Chen, Jenq-Haur Wang, Wen-Hsiang Lu, and Lee-Feng Chien. 2004. Translating unknown queries with web corpora for cross-language information retrieval. In Proceedings of SIGIR '04, pages 146-153. ACM. pdf

Pao-Ann Hsiung, Farn Wang, and Ruey-Cheng Chen. 2000. On the verification of wireless transaction protocol using SGM and RED. In Proceedings of RTCSA '00. IEEE Computer Society. pdf

Software