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» Queries and Computation on the Web
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CIKM
2010
Springer
15 years 16 days ago
Query optimization for ontology-based information integration
In recent years, there has been an explosion of publicly available RDF and OWL data sources. In order to effectively and quickly answer queries in such an environment, we present...
Yingjie Li, Jeff Heflin
WEBDB
2010
Springer
208views Database» more  WEBDB 2010»
14 years 11 months ago
XML-Based RDF Data Management for Efficient Query Processing
The Semantic Web, which represents a web of knowledge, offers new opportunities to search for knowledge and information. To harvest such search power requires robust and scalable ...
Mo Zhou, Yuqing Wu

Tutorial
905views
17 years 2 months ago
Location-aware Query Processing and Optimization
The wide spread use of cellular phones, handheld devices, and GPS-like technology enables location-aware environments where virtually all objects are aware of their locations. Loca...
SIGMOD
2003
ACM
134views Database» more  SIGMOD 2003»
16 years 2 months ago
Location-based Spatial Queries
In this paper we propose an approach that enables mobile clients to determine the validity of previous queries based on their current locations. In order to make this possible, th...
Jun Zhang, Manli Zhu, Dimitris Papadias, Yufei Tao...
ECIR
2009
Springer
15 years 11 months ago
Classifying and Characterizing Query Intent
Understanding the intent underlying user queries may help personalize search results and improve user satisfaction. In this paper, we develop a methodology for using ad clickthroug...
Azin Ashkan, Charles L. A. Clarke, Eugene Agichtei...