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Enhanced PL-WAP tree method for incr...

Chen, Min.

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Enhanced PL-WAP tree method for incremental mining of sequential patterns.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Enhanced PL-WAP tree method for incremental mining of sequential patterns./
作者:	Chen, Min.
面頁冊數:	128 p.
附註:	Source: Masters Abstracts International, Volume: 42-03, page: 0959.
Contained By:	Masters Abstracts International42-03.
標題:	Computer Science. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MQ84552
ISBN:	0612845524

Enhanced PL-WAP tree method for incremental mining of sequential patterns.
Chen, Min.

Enhanced PL-WAP tree method for incremental mining of sequential patterns. - 128 p.

Source: Masters Abstracts International, Volume: 42-03, page: 0959.

Thesis (M.Sc.)--University of Windsor (Canada), 2003.

Sequential mining as web usage mining has been used in improving web site design, increasing volume of e-business and providing marketing decision support.

ISBN: 0612845524Subjects--Topical Terms:

626642
Computer Science.

Enhanced PL-WAP tree method for incremental mining of sequential patterns.
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502 $a Thesis (M.Sc.)--University of Windsor (Canada), 2003.
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520 $a This thesis proposes PL4UP and EPL4UP algorithms which use the PLWAP tree structure to incrementally update sequential patterns. PL4UP does not scan old DB except when previous small 1-itemsets become large in updated database during which time its scans only all transactions in the old database that contain any small itemsets. EPL4UP rebuilds the old PLWAP tree using only the list of previous small itemsets once rather than scanning the entire old database twice like original PLWAP. PL4UP and EPL4UP first update old frequent patterns on the small PLWAP tree built for only the incremented part of the database, then they compare new added patterns generated from the small tree with the old frequent patterns to reduce the number of patterns to be checked on the old PLWAP tree. (Abstract shortened by UMI.)
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