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ICDT
2009
ACM
125views Database» more  ICDT 2009»
16 years 8 months ago
How big must complete XML query languages be?
Marx and de Rijke have shown that the navigational core of the w3c XML query language XPath is not first-order complete ? that is it cannot express every query definable in firsto...
Clemens Ley, Michael Benedikt
SIGMOD
2007
ACM
157views Database» more  SIGMOD 2007»
16 years 7 months ago
DaNaLIX: a domain-adaptive natural language interface for querying XML
We present DaNaLIX, a prototype domain-adaptive natural language interface for querying XML. Our system is an extension of NaLIX, a generic natural language interface for querying...
Yunyao Li, Ishan Chaudhuri, Huahai Yang, Satinder ...
SIGMOD
2001
ACM
158views Database» more  SIGMOD 2001»
16 years 7 months ago
Generating Efficient Plans for Queries Using Views
We study the problem of generating e cient, equivalent rewritings using views to compute the answer to a query. We take the closed-world assumption, in which views are materialize...
Foto N. Afrati, Chen Li, Jeffrey D. Ullman
EDBT
2008
ACM
128views Database» more  EDBT 2008»
16 years 7 months ago
Processing transitive nearest-neighbor queries in multi-channel access environments
Wireless broadcast is an efficient way for information dissemination due to its good scalability [10]. Existing works typically assume mobile devices, such as cell phones and PDAs...
Xiao Zhang, Wang-Chien Lee, Prasenjit Mitra, Baihu...
DASFAA
2007
IEEE
138views Database» more  DASFAA 2007»
16 years 1 months ago
An Original Semantics to Keyword Queries for XML Using Structural Patterns
XML is by now the de facto standard for exporting and exchanging data on the web. The need for querying XML data sources whose structure is not fully known to the user and the need...
Dimitri Theodoratos, Xiaoying Wu