• Information Systems
• Automatic Document Summarization
• Mobile Computing
• Computational Geometry

Philips Wang received BEng with First Class Honours in Computer Engineering and MPhil in Computer Science and Information Systems , both from the University of Hong Kong, in 1997 and 1999 respectively. He worked in the Digital Library Laboratory in the Chinese University of Hong Kong during 1999 to 2003, and received PhD in Information Systems from the same university in 2003. Before joining City University of Hong Kong, he was a Research Assistant under supervision of Prof. Christopher C. Yang at the Department of Systems Engineering and Engineering Management in the Chinese University of Hong Kong.

Philips Wang's research interests include information systems, automatic document summarization, mobile computing, computational geometry. He is a member of ACM and IEEE. He has published articles in journals and proceedings of international conferences.

• "An Information Delivery System with Automatic Summarization for Mobile Commerce", with Christopher C. Yang, Decision Support Systems, accepted for publication.
• "The Impact Analysis of Language Differences on Automatic Multilingual Text Summarization System", with Christopher C. Yang, Journal of the American Society for Information Science and Technology, accepted for publication.
• "Information Delivery for Mobile Business: Architecture for Accessing Large Documents through Mobile Devices", with Christopher C. Yang, Handbook of Research in Mobile Business: Technical, Methodological and Social Perspectives, Method Science, accepted for publication.
• "Improvements to Collaborative Filtering Systems", Lecture Notes in Computer Science, Springer, In Proceedings of The International Symposium on Computational and Information Sciences 2004, Shanghai, China. 16-18 Dec, 2004.
• "Relevance Feedback Model for Fractal Summarization", with Christopher C. Yang, Lecture Notes in Computer Science, Springer, In Proceedings of 7th International Conference on Asian Digital Libraries, ICADL 2004, Shanghai, China, December 13-17, 2004.
• "The Impact of Language Difference on Automatic Document Summarization", with Christopher C. Yang, 7th International Conference on Asian Digital Libraries, ICADL 2004, Shanghai, China, December 13-17, 2004.
• "Automatic Summarization of Chinese and English Parallel Documents", with Christopher C. Yang, Digital Libraries: Technology and Management of Indigenous Knowledge for Global Access, T. Sembok, H. Zaman, H. Chen, S. Urs, S Myaeng (Eds.), pp .46-61, 2003, Lecture Notes in Computer Science, 2911, Springer, In Proceedings of 6th International Conference on Asian Digital Libraries, ICADL 2003, Kuala Lumpur, Malaysia, December 8-12, 2003.
• "Fractal Summarization", PhD Thesis, Department of Systems Engineering and Engineering Management, The Chinese University of Hong Kong, August 2003.
• "Fractal Summarization: Summarization Based on Fractal Theory", with Christopher C. Yang, In Proceedings of the 26th Annual International ACM SIGIR Conference: Research and Development in Information Retrieval, Toronto, Canada, July 28 to August 1, 2003.
• "Fractal Summarization for Mobile Devices to Access Large Documents on the Web", with Christopher C. Yang, In Proceedings of the International World Wide Web Conference, pp 215-224, Budapest, Hungary, May 20-24, 2003.
• "Automatic Summarization for Financial News Delivery on Mobile Devices", with Christopher C. Yang, In Proceedings of the International World Wide Web Conference, Budapest, Hungary, May 20-24, 2003.
• "Transversal of Disjoint Convex Polygons", with Francis Y. L. Chin and Hong Shen, Information Processing Letters, Volume 85, pp. 55-60, 2003.
• "Document Summarization on Handheld Device: An Information Visualization Tool for Mobile Commerce", with Christopher C. Yang, in Proceeding of The First Workshop on e-Business (WEB2002) in International Conference on Information Systems (ICIS 2002), Barcelona, Spain, 14-15 Dec 2002.
• "Efficient Algorithm for Transversal of Disjoint Convex Polygons", with Francis Y. L. Chin, Information Processing Letters Volume 83(3), pp. 141-144, 2002.
• "An Efficient Algorithm for Transversal of Disjoint Convex Polygons", with Francis Y. L. Chin and Hong Shen, In Proceedings of the 2000 International Computer Symposium Workshop on Algorithms and Theory of Computation. Chiayi, Taiwan, ROC, National Chung Cheng University, pp 106-110. 2000.
• "Efficient Stabbing Algorithms for a Set of Objects", MPhil Thesis, Department of Computer Science and Information systems, The University of Hong Kong, October 1999.
• "Maximum Stabbing Line in 2D Plane", with Francis Y. L. Chin and Cao An Wang, In Proceedings of 5th Annual International Computing and Combinatorics Conference, COCOON'99, Lecture Notes in Computer Science 1627, Springer, pp 379-388, Tokyo, Japan, July 1999.

• Reviewer for Knowledge and Information Systems (KAIS): An International Journal
• Reviewer for Information Processing Letters (IPL).
• Reviewer for Joint Conference on Digital Libraries, JCDL 2004, Tucson, Arizona, USA, 7-11 June, 2004.
• Session Chair of 6th International Conference of Asian Digital Libraries, ICADL 2003, Kuala Lumpur, 8 - 11 December 2003.
• Member of the Association for Computing Machinery (ACM).
• Member of Institute of Electrical and Electronics Engineers, Inc. (IEEE).
• Member of Association for Information Systems (AIS).

• Study of Chinese segmentation, i.e., breaking a Chinese sentence into phrases.
• Implementation of different information visualization technique, i.e., fisheye view browser, fractal view browser, etc.