376 search results - page 5 / 76 » Semantics and Evaluation of Top-k Queries in Probabilistic D... |
PVLDB
2010
13 years 6 months ago
2010
Probabilistic databases hold promise of being a viable means for large-scale uncertainty management, increasingly needed in a number of real world applications domains. However, q...
CORR
2010
Springer
13 years 7 months ago
2010
Springer
Incorporating probabilities into the semantics of incomplete databases has posed many challenges, forcing systems to sacrifice modeling power, scalability, or treatment of relatio...
CORR
2012
Springer
12 years 3 months ago
2012
Springer
This paper presents a query evaluation technique for positive relational algebra queries with aggregates on a representation system for probabilistic data based on the algebraic s...
SIGMOD
2011
ACM
12 years 10 months ago
2011
ACM
Ranking queries report the top-K results according to a user-defined scoring function. A widely used scoring function is the weighted summation of multiple scores. Often times, u...
ICDE
2003
IEEE
14 years 9 months ago
2003
IEEE
XKeyword provides efficient keyword proximity queries on large XML graph databases. A query is simply a list of keywords and does not require any schema or query language knowledg...