3836 search results - page 255 / 768 » Semantics of Database Transformations |
142
click to vote
JHSN
2006
15 years 4 months ago
2006
We present a refined model for Role Based Access Control policies and define a risk measure for the model, which expresses elements of the operational, combinatorial and conflict ...
156
click to vote
SIGMOD
2004
ACM
16 years 4 months ago
2004
ACM
Peer data management systems (PDMS) offer a flexible architecture for decentralized data sharing. In a PDMS, every peer is associated with a schema that represents the peer's...
154
click to vote
VLDB
2004
ACM
15 years 10 months ago
2004
ACM
At a fundamental level, the key challenge in data integration is to reconcile the semantics of disparate data sets, each expressed with a different database structure. I argue th...
150
Voted
KDD
2007
ACM
16 years 5 months ago
2007
ACM
Data mining techniques that are successful in transaction and text data may not be simply applied to image data that contain high-dimensional features and have spatial structures....
135
click to vote
ADBIS
2005
Springer
15 years 10 months ago
2005
Springer
In today’s integrating information systems data fusion, i.e., the merging of multiple tuples about the same real-world object into a single tuple, is left to ETL tools and other ...