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dc.contributor.authorSaygin, Y.en_US
dc.contributor.authorUlusoy, Ö.en_US
dc.date.accessioned2016-02-08T10:32:01Z
dc.date.available2016-02-08T10:32:01Zen_US
dc.date.issued2002en_US
dc.identifier.issn1041-4347
dc.identifier.issn1558-2191
dc.identifier.urihttp://hdl.handle.net/11693/24628en_US
dc.description.abstractMobile computers can be equipped with wireless communication devices that enable users to access data services from any location. In wireless communication, the server-to-client (downlink) communication bandwidth is much higher than the client-to-server (uplink) communication bandwidth. This asymmetry makes the dissemination of data to client machines a desirable approach. However, dissemination of data by broadcasting may induce high access latency in case the number of broadcast data items is large. In this paper, we propose two methods aiming to reduce client access latency of broadcast data. Our methods are based on analyzing the broadcast history (i.e., the chronological sequence of items that have been requested by clients) using data mining techniques. With the first method, the data items in the broadcast disk are organized in such a way that the items requested subsequently are placed close to each other. The second method focuses on improving the cache hit ratio to be able to decrease the access latency. It enables clients to prefetch the data from the broadcast disk based on the rules extracted from previous data request patterns. The proposed methods are implemented on a Web log to estimate their effectiveness. It is shown through performance experiments that the proposed rule-based methods are effective in improving the system performance in terms of the average latency as well as the cache hit ratio of mobile clients.en_US
dc.language.isoEnglishen_US
dc.source.titleIEEE Transactions on Knowledge and Data Engineeringen_US
dc.relation.isversionofhttp://dx.doi.org/10.1109/TKDE.2002.1047775en_US
dc.subjectBroadcast Disksen_US
dc.subjectBroadcast Historiesen_US
dc.subjectBroadcast Organizationen_US
dc.subjectData Miningen_US
dc.subjectMobile Databasesen_US
dc.subjectPrefetchingen_US
dc.subjectBandwidthen_US
dc.subjectBroadcastingen_US
dc.subjectCache Memoryen_US
dc.subjectComputer Hardwareen_US
dc.subjectDatabase Systemsen_US
dc.subjectWireless Telecommunication Systemsen_US
dc.subjectWorld Wide Weben_US
dc.subjectMobile Computingen_US
dc.titleExploiting data mining techniques for broadcasting data in mobile computing environmentsen_US
dc.typeArticleen_US
dc.departmentDepartment of Computer Engineeringen_US
dc.citation.spage1387en_US
dc.citation.epage1399en_US
dc.citation.volumeNumber14en_US
dc.citation.issueNumber6en_US
dc.identifier.doi10.1109/TKDE.2002.1047775en_US
dc.publisherIEEEen_US


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