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» Consistent Query Answers in Inconsistent Databases
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ICDE
2008
IEEE
425views Database» more  ICDE 2008»
15 years 7 months ago
NAGA: Searching and Ranking Knowledge
The Web has the potential to become the world’s largest knowledge base. In order to unleash this potential, the wealth of information available on the Web needs to be extracte...
Gjergji Kasneci, Fabian M. Suchanek, Georgiana Ifr...
DEXAW
2007
IEEE
137views Database» more  DEXAW 2007»
14 years 2 months ago
FCA for contextual semantic navigation and information retrieval in heterogeneous information systems
This paper presents an information retrieval methodology which uses Formal Concept Analysis in conjunction with semantics to provide contextual answers to users’ queries. User f...
Géraldine Polaillon, Marie-Aude Aufaure, B&...
PODS
2000
ACM
179views Database» more  PODS 2000»
13 years 12 months ago
Selectivity Estimation for Boolean Queries
In a variety of applications ranging from optimizing queries on alphanumeric attributes to providing approximate counts of documents containing several query terms, there is an in...
Zhiyuan Chen, Flip Korn, Nick Koudas, S. Muthukris...
DEXA
2007
Springer
107views Database» more  DEXA 2007»
13 years 11 months ago
When Mobile Objects' Energy Is Not So Tight: A New Perspective on Scalability Issues of Continuous Spatial Query Systems
The two dominant costs in continuous spatial query systems are the wireless communication cost for location update, and the evaluation cost for query processing. Existing works add...
Tai T. Do, Fuyu Liu, Kien A. Hua
ICDE
2004
IEEE
90views Database» more  ICDE 2004»
14 years 9 months ago
Multiresolution Indexing of XML for Frequent Queries
XML and other types of semi-structured data are typically represented by a labeled directed graph. To speed up path expression queries over the graph, a variety of structural inde...
Hao He, Jun Yang 0001