1088 search results - page 124 / 218 » Probabilistic query expansion using query logs |
JASIS
2007
13 years 9 months ago
2007
It has been claimed that topic metadata can be used to improve the accuracy of text searches. Here, we test this claim by examining the contribution of metadata to effective search...
ICDE
2010
IEEE
14 years 8 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...
DEXAW
2009
IEEE
14 years 3 months ago
2009
IEEE
—This paper compares and illustrates the use of manually and automatically assigned descriptors on German documents extracted from the GIRT Corpus. A second objective is to analy...
PVLDB
2008
13 years 8 months ago
2008
In probabilistic databases, lineage is fundamental to both query processing and understanding the data. Current systems s.a. Trio or Mystiq use a complete approach in which the li...
CJ
2010
13 years 6 months ago
2010
an be used to abstract away from the physical reality by describing it as components that exist in discrete states with probabilistically invoked actions that change the state. The...