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SIGMOD
2009
ACM
15 years 10 months ago
2009
ACM
Existing works in XML keyword search have addressed the problem of finding matching results of a query. However, user input queries always contain irrelevant or mismatched terms, ...
DEXA
1998
Springer
15 years 2 months ago
1998
Springer
Abstract. In this paper we examine the problem of indexing time sequences in order to answer inverse queries. An inverse query computes all the time points at which the sequence co...
CCCG
2008
14 years 11 months ago
2008
We consider a generalization of geometric range searching, with the goal of generating an informative "summary" of the objects contained in a query range via the applica...
PVLDB
2008
14 years 9 months ago
2008
Given a dataset containing sensitive personal information, a statistical database answers aggregate queries in a manner that preserves individual privacy. We consider the problem ...
ISAAC
2004
Springer
15 years 3 months ago
2004
Springer
Let G be a graph containing N disjoint t-spanners that are inter-connected with M edges. We present an algorithm that constructs a data structure of size O(M2 + n log n) that answ...