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                                                     Seminar

             Department of Systems Engineering and Engineering Management
                                  The Chinese University of Hong Kong

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Title

:

From Dynamic to Unbalanced Ontology/Schema Matching

　

　

　

Speaker

:

Dr. Jie Tang

　

　

Assistant Professor, Tsinghua University

　

　

　

　

　

Date

:

May 22th, 2009 (Friday)

　

　

　

Time

:

4:30 p.m. - 5:30 p.m.

　

　

　

Venue

:

Room 513

　

　

William M.W. Mong Engineering Building

　

　

(Engineering Building Complex Phase 2)

　

　

CUHK

　

　

　

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Abstract:
　

Ontology/schema matching, aiming to identify semantic correspondences between two ontologies, has played a key role in data exchange, data integration and metadata management. In this talk, I will first introduce a dynamic multi-strategy ontology alignment framework, named RiMOM. The key insight in this framework is that similarity characteristics between ontologies may vary widely. We propose a systematic approach to quantitatively estimate the similarity characteristics for each alignment task and propose a strategy selection method to automatically combine the matching strategies based on two estimated factors. Second, I will also describe our recent progress on ontology matching. We study a new problem of unbalanced ontology matching and propose a novel Gauss Function based approach to deal with this unbalanced ontology matching issue. With RiMOM, we participated in the 2006 and 2007 campaigns of the Ontology Alignment Evaluation Initiative (OAEI). Our system is among the top three performers on the benchmark data sets.


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Biography:
　

Jie Tang is an assistant professor at the Department of Computer Science and Technology, Tsinghua University. He obtained his Ph.D. degree in 2006 and was awarded the Excellent Thesis of Tsinghua University. His main research interests include social network mining, text mining, statistical learning, and semantic web. He has published over 50 research papers in major international journals and conferences including: KDD, IJCAI, SIGMOD, ACL, ISWC, TKDE, JWS and JoDS. He is the principal investigator of National High-tech R&D Program (863) Program, NSFC project, Chinese Young Faculty Research Funding, National 985 funding, several international collaborative projects such as Minnesota/China Collaborative project and IBM innovative joint-research projects, Tsinghua-Google Joint project, and Sougo.Inc. He serves as co-chair of the (2008 & 2009) Workshop on Social Web Search and Mining Workshop, Financial Data Mining (FDM’
2009) Workshop, and also serves as the PC member of more than 40 international conferences. He is the member of editorial board of Journal of Software and Journal of Advances in Information Technology, and is the reviewer of a dozens of journals. HP:
http://keg.cs.tsinghua.edu.cn/persons/tj/


************************* ALL ARE WELCOME ************************

　

　

　

Host

:

Prof. Yu Xu, Jeffrey

Tel

:

(852) 2609-8309

Email

:

yu@se.cuhk.edu.hk

　

　

　

Enquiries

:

Prof. Nan Chen or Prof. Sean X. Zhou

　

:

Department of Systems Engineering and Engineering Management

　

　

CUHK

Website

:

http://www.se.cuhk.edu.hk/~seg5810

Email

:

seg5810@se.cuhk.edu.hk

　

　

　

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