333 search results - page 18 / 67 » Read-Once Functions and Query Evaluation in Probabilistic Da... |
ICDE
2010
IEEE
15 years 11 months ago
2010
IEEE
The skyline query returns the most interesting tuples according to a set of explicitly defined preferences among attribute values. This work relaxes this requirement, and allows us...
ICDE
2010
IEEE
15 years 11 months ago
2010
IEEE
Estimation via sampling out of highly selective join queries is well known to be problematic, most notably in online aggregation. Without goal-directed sampling strategies, samples...
SIGMOD
2003
ACM
15 years 12 months ago
2003
ACM
XML databases often contain documents comprising structured text. Therefore, it is important to integrate "information retrieval style" query evaluation, which is well-s...
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CIDR
2003
15 years 1 months ago
2003
Traditional science searched for new objects and phenomena that led to discoveries. Tomorrow's science will combine together the large pool of information in scientific archi...
PODS
2008
ACM
15 years 12 months ago
2008
ACM
Conjunctive query (CQ) evaluation on relational databases is NP-complete in general. Several restrictions, like bounded tree-width and bounded hypertree-width, allow polynomial ti...