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VLDB
2004
ACM
15 years 3 months ago
2004
ACM
Top-k queries based on ranking elements of multidimensional datasets are a fundamental building block for many kinds of information discovery. The best known general-purpose algor...
ICDE
2009
IEEE
15 years 4 months ago
2009
IEEE
— Existing stream processing systems are optimized for a specific metric, which may limit their applicability to diverse applications and environments. This paper presents XFlow...
ER
2004
Springer
15 years 1 months ago
2004
Springer
The semantic web envisions a World Wide Web in which data is described with rich semantics and applications can pose complex queries. Ontologies, a cornerstone of the semantic web,...
IJOCI
2010
14 years 7 months ago
2010
We present a time-efficient approach to index objects moving on the plane to efficiently answer range queries about their future positions. Each object is moving with non small ve...
EDBT
2004
ACM
15 years 10 months ago
2004
ACM
In this paper we present HOPI, a new connection index for XML documents based on the concept of the 2?hop cover of a directed graph introduced by Cohen et al. In contrast to most o...