128 search results - page 25 / 26 » Logical Data Independence Reconsidered (Extended Abstract) |
DRM
2007
Springer
13 years 12 months ago
2007
Springer
The goal of obfuscation is to transform a program, without affecting its functionality, such that some secret information within the program can be hidden for as long as possible...
GEOINFORMATICA
1998
13 years 5 months ago
1998
ally related entity types, or classes, into higher level, more abstract types, as part of a hierarchical classi®cation scheme. graphy, generalization retains the notion of abstrac...
EDBT
2009
ACM
14 years 18 days ago
2009
ACM
Data stream management systems usually have to process many long-running queries that are active at the same time. Multiple queries can be evaluated more efficiently together tha...
ASPLOS
2006
ACM
13 years 11 months ago
2006
ACM
Systems programs rely on fine-grain control of data representation and use of state to achieve performance, conformance to hardware specification, and temporal predictability. T...
ADBIS
2004
Springer
13 years 11 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...