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oai:www.ideals.illinois.edu:2142/16095 2023-07-10 col_2142_5131 col_2142_10761 com_2142_5130 com_2142_10755 com_2142_234

Doan, AnHai Doan, AnHai Belford, Geneva G. Winslett, Marianne Zhai, ChengXiang Lee, Yoonkyong 2010-05-19T18:34:43Z 2010-05-19T18:34:43Z 2010-05-19T18:34:43Z This dissertation studies the schema matching problem that finds semantic correspon- dences (called matches) between disparate data sources. Examples of semantic matches include “location = address” and “name = concat(first-name,last-name).” Schema matching is one of the key challenges for many data sharing and exchange applications. Prime examples of such applications arise in numerous contexts, including data warehousing, scientific collaboration, e-commerce, bioinformatics, and data integra- tion on the World Wide Web. Despite significant progress, many challenges remain. These include discovering complex matches, a prevalent problem in practice, tuning a matching system, and deploying a matching system effectively in an application. In this dissertation, we develop solutions for the three challenges mentioned above. First, we develop a system that discovers both one-to-one and complex matches and pro- vides a novel explanation facility that helps users analyze matches. Next, we develop a framework that automatically tunes multi-component matching systems by synthesiz- ing a collection of matching scenarios. Finally, we show that we can efficiently exploit discovered semantic matches without extra user effort in certain applications. Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2010-03-29T13:40:57Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 1 Lee_Yoonkyong.pdf: 3220993 bytes, checksum: 205c4244e2e7514186894c4d4d256a69 (MD5) Made available in DSpace on 2010-05-19T18:34:43Z (GMT). No. of bitstreams: 2 Lee_Yoonkyong.pdf: 3220993 bytes, checksum: 205c4244e2e7514186894c4d4d256a69 (MD5) license.txt: 4061 bytes, checksum: 5a8f1d5c79dbe7f73ea11f3c882eed8b (MD5) http://hdl.handle.net/2142/16095 en Copyright 2010 Yoonkyong Lee schema matching data integration Developing, tuning, and using schema matching systems 2010-5 Computer Science 1434 Computer Science 0112 University of Illinois at Urbana-Champaign Dissertation Ph.D. PHD:Computer Science -UIUC 10KS0112PHD