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» Query Optimization in an OODBMS
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AMW
2011
14 years 7 months ago
A Direct Translation from XPath to Nondeterministic Automata
Since navigational aspects of XPath correspond to first-order definability, it has been proposed to use the analogy with the very successful technique of translating LTL into aut...
Nadime Francis, Claire David, Leonid Libkin
207
Voted
CIDR
2011
266views Algorithms» more  CIDR 2011»
14 years 7 months ago
Consistency in a Stream Warehouse
A stream warehouse is a Data Stream Management System (DSMS) that stores a very long history, e.g. years or decades; or equivalently a data warehouse that is continuously loaded. ...
Lukasz Golab, Theodore Johnson
ICDT
2011
ACM
232views Database» more  ICDT 2011»
14 years 7 months ago
(Approximate) uncertain skylines
Given a set of points with uncertain locations, we consider the problem of computing the probability of each point lying on the skyline, that is, the probability that it is not do...
Peyman Afshani, Pankaj K. Agarwal, Lars Arge, Kasp...
ICDE
2008
IEEE
123views Database» more  ICDE 2008»
16 years 5 months ago
Handling Non-linear Polynomial Queries over Dynamic Data
Applications that monitor functions over rapidly and unpredictably changing data, express their needs as continuous queries. Our focus is on a rich class of queries, expressed as p...
Shetal Shah, Krithi Ramamritham
SIGMOD
2004
ACM
198views Database» more  SIGMOD 2004»
16 years 3 months ago
Secure XML Querying with Security Views
The prevalent use of XML highlights the need for a generic, flexible access-control mechanism for XML documents that supports efficient and secure query access, without revealing ...
Wenfei Fan, Chee Yong Chan, Minos N. Garofalakis