2724 search results - page 390 / 545 » Optimizing Queries on Files |
133
Voted
APWEB
2005
Springer
15 years 9 months ago
2005
Springer
Summarizing topological relations is fundamental to many spatial applications including spatial query optimization. In this paper, we examine the selectivity estimation for range w...
116
Voted
EDBTW
2004
Springer
15 years 9 months ago
2004
Springer
In this paper, we investigate how existing social networks can benefit P2P data networks by leveraging the inherent trust associated with social links. We present a trust model t...
135
Voted
SOFSEM
2004
Springer
15 years 9 months ago
2004
Springer
Abstract. Research on processing XML documents gained much activity in recent times. XML query languages are mostly based on XPath expressions, which are used to select parts of XM...
119
Voted
ICDT
1997
ACM
15 years 7 months ago
1997
ACM
We develop a new schema for unstructured data. Traditional schemas resemble the type systems of programming languages. For unstructured data, however, the underlying type may be mu...
128
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ICALP
1990
Springer
15 years 7 months ago
1990
Springer
We show how (now familiar) hierarchical representations of (convex) polyhedra can be used to answer various separation queries efficiently (in a number of cases, optimally). Our e...