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IJWIS
2008
110views more  IJWIS 2008»
13 years 7 months ago
Determined: a system with novel techniques for XML query optimization and evaluation
: Purpose -- Efficient processing of XML queries is critical for XML data management and related applications. Previously proposed techniques are unsatisfactory. This article prese...
Dunren Che, Wen-Chi Hou
TOCL
2002
96views more  TOCL 2002»
13 years 7 months ago
On first-order topological queries
One important class of spatial database queries is the class of topological queries, that is, queries invariant under homeomorphisms. Westudy topological queries expressible in th...
Martin Grohe, Luc Segoufin
WWW
2001
ACM
14 years 8 months ago
Which Search Engine is Best at Finding Online Services?
We report results for an independent, blind evaluation of the performance of 11 commercial search engines on 106 online service queries and on 54 topic relevance queries. We found...
David Hawking, Nick Craswell, Kathleen Griffiths
ECIR
2007
Springer
13 years 9 months ago
Examining Repetition in User Search Behavior
This paper describes analyses of the repeated use of search engines. It is shown that users commonly re-issue queries, either to examine search results deeply or simply to query ag...
Mark Sanderson, Susan T. Dumais
ICDE
2009
IEEE
153views Database» more  ICDE 2009»
14 years 9 months ago
XBLEND: Visual XML Query Formulation Meets Query Processing
Due to the complexity of XML query languages, the need for visual query interfaces that can reduce the burden of query formulation is fundamental to the spreading of XML to wider c...
Zhou Yong, Sourav S. Bhowmick, Erwin Leonardi, Kla...