3403 search results - page 48 / 681 » A Query System in a Biological Database |
183
Voted
SIGMOD
2008
ACM
16 years 4 months ago
2008
ACM
This article proposes a core query algebra for probabilistic databases. In essence, this core is part of the query languages of most probabilistic database systems proposed so far...
125
click to vote
BTW
2005
Springer
15 years 9 months ago
2005
Springer
: Optimizers in modern DBMSs utilize a cost model to choose an efficient query execution plan (QEP) among all possible ones for a given query. The accuracy of the cost estimates de...
163
click to vote
SIGMOD
2011
ACM
14 years 6 months ago
2011
ACM
An important means of allowing non-expert end-users to pose ad hoc queries — whether over single databases or data integration systems — is through keyword search. Given a set...
146
click to vote
SSDBM
2008
IEEE
15 years 10 months ago
2008
IEEE
Increasingly, many data sources appear as online databases, hidden behind query forms, thus forming what is referred to as the deep web. It is desirable to have systems that can pr...
140
click to vote
ADBIS
2004
Springer
15 years 9 months ago
2004
Springer
Abstract. Query reformulation techniques based on semantic knowledge have been used in two ways in database management systems, namely for query optimization and for data integrati...