376 search results - page 15 / 76 » Semantics and Evaluation of Top-k Queries in Probabilistic D... |
DEXAW
2007
IEEE
14 years 2 months ago
2007
IEEE
Data integration approaches mostly attempt to resolve semantic uncertainty and conflicts between data sources during the data integration process. In some application areas, this...
DBSEC
2006
13 years 9 months ago
2006
Abstract. Controlled Query Evaluation (CQE) offers a logical framework to prevent a user of a database from inadvertently gaining knowledge he is not allowed to know. By modeling t...
PODS
2007
ACM
14 years 8 months ago
2007
ACM
Many applications today need to manage large data sets with uncertainties. In this paper we describe the foundations of managing data where the uncertainties are quantified as pro...
DASFAA
2007
IEEE
14 years 2 months ago
2007
IEEE
Nearest-neighbor queries are an important query type for commonly used feature databases. In many different application areas, e.g. sensor databases, location based services or fac...
PODS
2006
ACM
14 years 8 months ago
2006
ACM
The query equivalence problem has been studied extensively for set-semantics and, more recently, for bag-set semantics. However, SQL queries often combine set and bag-set semantic...