285 search results - page 50 / 57 » Optimization of Real Conjunctive Queries |
ICDE
2006
IEEE
14 years 8 months ago
2006
IEEE
Given a set of multi-dimensional points, the skyline contains the best points according to any preference function that is monotone on all axes. In practice, applications that req...
SIGMOD
2007
ACM
14 years 7 months ago
2007
ACM
In response to the widespread use of the XML format for document representation and message exchange, major database vendors support XML in terms of persistence, querying and inde...
IMC
2005
ACM
14 years 29 days ago
2005
ACM
Sketch is a sublinear space data structure that allows one to approximately reconstruct the value associated with any given key in an input data stream. It is the basis for answer...
DMSN
2004
ACM
14 years 25 days ago
2004
ACM
Recent work in sensor databases has focused extensively on distributed query problems, notably distributed computation of aggregates. Existing methods for computing aggregates bro...
PODS
1997
ACM
13 years 11 months ago
1997
ACM
In this paper, we present a new cost model for nearest neighbor search in high-dimensional data space. We first analyze different nearest neighbor algorithms, present a generaliza...