716 search results - page 109 / 144 » Optimizing Queries in Extended Relational Databases |
EDBT
2000
ACM
15 years 2 months ago
2000
ACM
the research activities. This abstract is to introduce the approach of a data model - EP data model. Its data structure is able to store as a finite set of nodes arbitrary effectiv...
CORR
2011
Springer
14 years 6 months ago
2011
Springer
The MapReduce distributed programming framework has become popular, despite evidence that current implementations are inefficient, requiring far more hardware than a traditional r...
ICDE
2010
IEEE
15 years 6 months ago
2010
IEEE
— We demonstrate ROX, a run-time optimizer of XQueries, that focuses on finding the best execution order of XPath steps and relational joins in an XQuery. The problem of join or...
109
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SODA
2010
ACM
14 years 9 months ago
2010
ACM
The partial sums problem in succinct data structures asks to preprocess an array A[1 . . n] of bits into a data structure using as close to n bits as possible, and answer queries ...
198
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GIS
2006
ACM
16 years 7 days ago
2006
ACM
Given a query point and a collection of spatial features, a multi-type nearest neighbor (MTNN) query finds the shortest tour for the query point such that only one instance of eac...