{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2022,4,1]],"date-time":"2022-04-01T11:50:20Z","timestamp":1648813820198},"reference-count":6,"publisher":"World Scientific Pub Co Pte Lt","issue":"01n02","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int. J. Coop. Info. Syst."],"published-print":{"date-parts":[[2002,3]]},"abstract":"<jats:p> There is currently great interest in building information mediators that can integrate information from multiple data sources such as databases or Web sources. The query response time for such mediators is typically quite high, mainly due to the time spent in retrieving data from remote sources. We present an approach for optimizing the performance of information mediators by selectively materializing data. We first present our overall framework for materialization in a mediator environment. The data is materialized selectively. We outline the factors that are considered in selecting data to materialize. We present an algorithm for identifying classes of data to materialize by analyzing one of the factors which is the distribution of user queries. We present results with an implemented version of our optimization system for the Ariadne information mediator, which show the effectiveness of our algorithm in extracting patterns of frequently accessed classes from user queries. We also demonstrate the effectiveness of approach in optimizing mediator performance by materializing such classes. <\/jats:p>","DOI":"10.1142\/s0218843002000534","type":"journal-article","created":{"date-parts":[[2002,7,27]],"date-time":"2002-07-27T10:58:59Z","timestamp":1027767539000},"page":"119-144","source":"Crossref","is-referenced-by-count":6,"title":["SELECTIVELY MATERIALIZING DATA IN MEDIATORS BY ANALYZING USER QUERIES"],"prefix":"10.1142","volume":"11","author":[{"given":"NAVEEN","family":"ASHISH","sequence":"first","affiliation":[{"name":"IBM Almaden Research Center, 650 Harry Road, San Jose CA 95120-6099, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"CRAIG","family":"KNOBLOCK","sequence":"additional","affiliation":[{"name":"Information Sciences Institute, Integrated Media System Center and Department of Computer Science, University of Southern California, 4676 Admiralty Way, Marina del Rey, CA 90292, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"CYRUS","family":"SHAHABI","sequence":"additional","affiliation":[{"name":"Information Sciences Institute, Integrated Media System Center and Department of Computer Science, University of Southern California, 4676 Admiralty Way, Marina del Rey, CA 90292, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"219","published-online":{"date-parts":[[2012,4,6]]},"reference":[{"key":"p_6","doi-asserted-by":"publisher","DOI":"10.1145\/176789.176797"},{"key":"p_13","author":"Tomasic A.","year":"1997","journal-title":"IEEE Transaction Computers, Special Issue on Distributed Computing System"},{"key":"p_15","first-page":"3","volume":"6","author":"Arens Y.","year":"1996","journal-title":"Special Issue on Intelligent Information Integration"},{"key":"p_24","doi-asserted-by":"publisher","DOI":"10.1007\/s007780050014"},{"key":"p_25","first-page":"34","volume":"1","author":"Goni A.","year":"1997","journal-title":"J. Intell. Inf. Syst."},{"key":"p_29","first-page":"1","volume":"6","author":"Papakonstantinou Y.","year":"1998","journal-title":"Distr. Par. Databases"}],"container-title":["International Journal of Cooperative Information Systems"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.worldscientific.com\/doi\/pdf\/10.1142\/S0218843002000534","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,8,6]],"date-time":"2019-08-06T20:06:56Z","timestamp":1565122016000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.worldscientific.com\/doi\/abs\/10.1142\/S0218843002000534"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2002,3]]},"references-count":6,"journal-issue":{"issue":"01n02","published-online":{"date-parts":[[2012,4,6]]},"published-print":{"date-parts":[[2002,3]]}},"alternative-id":["10.1142\/S0218843002000534"],"URL":"https:\/\/doi.org\/10.1142\/s0218843002000534","relation":{},"ISSN":["0218-8430","1793-6365"],"issn-type":[{"value":"0218-8430","type":"print"},{"value":"1793-6365","type":"electronic"}],"subject":[],"published":{"date-parts":[[2002,3]]}}}