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» A System for Semantic Query Optimization
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ICDE
2012
IEEE
208views Database» more  ICDE 2012»
11 years 11 months ago
Fast SLCA and ELCA Computation for XML Keyword Queries Based on Set Intersection
— In this paper, we focus on efficient keyword query processing for XML data based on SLCA and ELCA semantics. We propose for each keyword a novel form of inverted list, which i...
Junfeng Zhou, Zhifeng Bao, Wei Wang, Tok Wang Ling...
ESWS
2008
Springer
13 years 11 months ago
Combining Fact and Document Retrieval with Spreading Activation for Semantic Desktop Search
Abstract. The Semantic Desktop is a means to support users in Personal Information Management (PIM). It provides an excellent test bed for Semantic Web technology: resources (e. g....
Kinga Schumacher, Michael Sintek, Leo Sauermann
WWW
2005
ACM
14 years 10 months ago
Composite event queries for reactivity on the web
Reactivity on the Web is an emerging issue. The capability to automatically react to events (such as updates to Web resources) is essential for both Web services and Semantic Web ...
François Bry, James Bailey, Paula-Lavinia P...
SIGMOD
2005
ACM
119views Database» more  SIGMOD 2005»
14 years 9 months ago
Update-Pattern-Aware Modeling and Processing of Continuous Queries
A defining characteristic of continuous queries over on-line data streams, possibly bounded by sliding windows, is the potentially infinite and time-evolving nature of their input...
Lukasz Golab, M. Tamer Özsu
CIKM
2005
Springer
14 years 2 months ago
Optimizing candidate check costs for bitmap indices
In this paper, we propose a new strategy for optimizing the placement of bin boundaries to minimize the cost of query evaluation using bitmap indices with binning. For attributes ...
Doron Rotem, Kurt Stockinger, Kesheng Wu