514 search results - page 46 / 103 » Answer Sets for Consistent Query Answering in Inconsistent D... |
SIGMOD
2009
ACM
14 years 11 months ago
2009
ACM
A common criticism of database systems is that they are hard to query for users uncomfortable with a formal query language. To address this problem, form-based interfaces and keyw...
Publication
Location-aware environments are characterized by a large number of objects and a large number of continuous queries. Both the objects and continuous queries may change their locati...
EDBT
2006
ACM
14 years 11 months ago
2006
ACM
Incomplete databases, that is, databases that are missing data, are present in many research domains. It is important to derive techniques to access these databases efficiently. We...
OTM
2005
Springer
14 years 4 months ago
2005
Springer
The relational algebra and calculus do not take the semantics of terms into account when answering queries. As a consequence, not all tuples that should be returned in response to ...
DASFAA
2010
IEEE
14 years 3 months ago
2010
IEEE
Abstract. Visibility query is fundamental to many analysis and decisionmaking tasks in virtual environments. Visibility computation is time complex and the complexity escalates in ...