Xudong GUAN Post-doc research fellow Departamento de Informática Faculdade de Ciências e Tecnologia Universidade Nova de Lisboa Monte de Caparica 2829-516 Caparica Portugal Tel: +351 212948300 ext 10743 (Room: P3/14) Fax: +351 212948541 Mobile: +351 968636153 Email: Xudong.Guan(at)di.fct.unl.pt Web: http://ctp.di.fct.unl.pt/~xguan

Welcome to Xudong Guan's TWiki-based homepage! I am currently a Ph.D. candidate of Distributed Computing Technology Center, Shanghai Jiao Tong University, China. My dissertation is about some theoretical research on the ambient calculi. My advisor is Prof. Jinyuan You. I have also done some research on data mining, especially Web Usage Mining and its application in e-commerce intelligence.

• Xudong Guan. Type system and algebraic theory of Robust Ambients. Ph.D. thesis (in Chinese), May 2002, Shanghai Jiao Tong University. [Download Zipped postscript file with CTX source]

• Xudong Guan, Yiling Yang, Jinyuan You. Further control on the grave interference in mobile ambients. Chinese J. Software, 2001. To appear. (in Chinese)

• Xudong Guan, Yiling Yang, Jinyuan You. Typing evolving ambients. Info. Proc. Letters. 80(5):265-270, 2001, Elsevier.

• Xudong Guan, Yiling Yang, Jinyuan You. Making ambients more robust. In Proc. Int'l. Conf. on Software: Theory and Practice, pp.377-384, Beijing, China, Aug. 2000. http://www.gsut.edu.cn/dianxin/software/wcc2000/ics2000/ics-S7-2.pdf

-- Data Mining and Web Usage Mining --

• Yiling Yang, Xudong Guan, Jinyuan You. CLOPE: A fast and effective clustering algorithm for transactional data. To appear in Proc. KDD'02 as a poster paper.

• Yiling Yang, Xudong Guan, Jinyuan You. Improving the interestingness of web usage mining. J. Shanghai Jiao Tong Univ.(English), 2001. (summarized and renewed version of the ICDCS2000 paper and IIP2000 paper) [ps.gz]

• Yiling Yang, Xudong Guan, Jinyuan You. Mining the frequently visited page groups based on the content of HTML pages and the site topology. Chinese J. Software, 2001. To appear. (in Chinese)

• Yiling Yang, Xudong Guan, Lina Lu, Jinyuan You. Frame filtering in the data preprocessing of Web usage mining. Computer Engineering (China), 27(2):76-77, 2001. (in Chinese)

• Yiling Yang, Xudong Guan, Jinyuan You. SWLMS - A small Web log mining system. J. Shanghai Jiao Tong Univ. 34(7):932-935, 2000. (in Chinese)

• Yiling Yang, Xudong Guan, Jinyuan You. Frame filtering in the data preprocessing for web usage mining. In Proc. Int'l. Conf. on Intelligent Info. Processing, pp. 507-511, Beijing, China, Aug. 2000.

• Yiling Yang, Xudong Guan, Jinyuan You. Enhanced algorithm for mining frequently visited page groups. In Proc. ICDCS'2000 Workshops, pp.F54-F57, Taipei, Taiwan, April, 2000. Available from: http://www2.ee.ntu.edu.tw/~mschen/workshop/accepted.htm

-- Mobility and Security --

• Xudong Guan, Yiling Yang, Jinyuan You. POM - A mobile agent security model against malicious hosts. In Proc. HPC-Asia'2000, pp.1165-1166, Beijing, China, May 2000. http://www.computer.org/proceedings/hpc/0589/volume%202/05891165abs.htm

Talks

• Typing evolving ambients. Computer and Information Technology 2001, Shanghai University, Sep. 2001. PPT (gzipped)

• An introduction to WikiWikiWeb (in Chinese). Lab weekly seminar, Apr. 2001. PPT (gzipped)

• Making ambients more robust. World Computer Congress'2000, Beijing, Aug. 2000. PPT (gzipped)

• POM - A mobile agent security model against malicious hosts, HPC-Asia'2000, Beijing, May 2000. PPT (gzipped)

• Mobile agent security (in Chinese). Lab weekly seminar, Dec. 1999. PPT (gzipped)

Software

• WebAgent - Personal assistant for web page notification.
  • I use it to monitor page updates. It composed of a a few simple scripts that make use of: wget, awk, diff, sendmail, and the cron daemon.

Hobbies

• Inline skating, Tai Chi Chuan, Guitar playing, and more!