Sciweavers

1933 search results - page 22 / 387
» Query Containment Using Views
Sort
View
ER
1999
Springer
155views Database» more  ER 1999»
15 years 1 months ago
Detecting Redundancy in Data Warehouse Evolution
A Data Warehouse DW can be abstractly seen as a set of materialized views de ned over a set of remote data sources. A DW is intended to satisfy a set of queries. The views materi...
Dimitri Theodoratos
SIGMOD
2004
ACM
160views Database» more  SIGMOD 2004»
15 years 9 months ago
Extending Query Rewriting Techniques for Fine-Grained Access Control
Current day database applications, with large numbers of users, require fine-grained access control mechanisms, at the level of individual tuples, not just entire relations/views,...
Shariq Rizvi, Alberto O. Mendelzon, S. Sudarshan, ...
98
Voted
DBISP2P
2005
Springer
129views Database» more  DBISP2P 2005»
15 years 3 months ago
Querying a Super-Peer in a Schema-Based Super-Peer Network
We propose a novel approach for de ning and querying a super-peer within a schema-based super-peer network organized into a two-level architecture: the low level, called the peer l...
Domenico Beneventano, Sonia Bergamaschi, Francesco...
72
Voted
DASFAA
2007
IEEE
141views Database» more  DASFAA 2007»
15 years 3 months ago
Integrating Similarity Retrieval and Skyline Exploration Via Relevance Feedback
Similarity retrieval have been widely used in many practical search applications. A similarity query model can be viewed as a logical combination of a set of similarity predicates....
Yiming Ma, Sharad Mehrotra
CORR
2000
Springer
103views Education» more  CORR 2000»
14 years 9 months ago
Automatic Termination Analysis of Programs Containing Arithmetic Predicates
For logic programs with arithmetic predicates, showing termination is not easy, since the usual order for the integers is not well-founded. A new method, easily incorporated in th...
Nachum Dershowitz, Naomi Lindenstrauss, Yehoshua S...