493 search results - page 45 / 99 » Consensus answers for queries over probabilistic databases |
VLDB
2001
ACM
15 years 3 months ago
2001
ACM
Estimating the number of distinct values is a wellstudied problem, due to its frequent occurrence in queries and its importance in selecting good query plans. Previous work has sh...
108
click to vote
DEXA
2009
Springer
15 years 5 months ago
2009
Springer
SPARQL is today the standard access language for Semantic Web data. In the recent years XML databases have also acquired industrial importance due to the widespread applicability o...
200
click to vote
ICDE
2007
IEEE
16 years 15 days ago
2007
IEEE
Top-k processing in uncertain databases is semantically and computationally different from traditional top-k processing. The interplay between score and uncertainty makes traditio...
129
click to vote
DASFAA
2010
IEEE
15 years 3 months ago
2010
IEEE
This paper studies a new query on uncertain data, called k-selection query. Given an uncertain dataset of N objects, where each object is associated with a preference score and a p...
117
click to vote
WWW
2008
ACM
15 years 11 months ago
2008
ACM
In this paper, we study the problem of keyword proximity search over XML documents and leverage the efficiency and effectiveness. We take the disjunctive semantics among input key...