1860 search results - page 289 / 372 » A Model of Queries for Object-Oriented Databases |
147
Voted
VLDB
1998
ACM
15 years 8 months ago
1998
ACM
We propose a multi-dimensional language called nD-SQL with the following features: (i) nD-SQL supports queries that interoperate amongst multiple relational sources with heterogen...
131
Voted
ER
2000
Springer
15 years 7 months ago
2000
Springer
The need for descriptive information, i.e., metadata, about Web resources has been recognized in several application contexts (e.g., digital libraries, portals). The Resource Descr...
141
Voted
CCS
2007
ACM
15 years 10 months ago
2007
ACM
In this paper, we study the maintenance of role-based access control (RBAC) models in database environments using transitive closure relations. In particular, the algorithms that ...
145
click to vote
PODS
2006
ACM
16 years 3 months ago
2006
ACM
We study the randomized version of a computation model (introduced in [9, 10]) that restricts random access to external memory and internal memory space. Essentially, this model c...
164
Voted
CIKM
2009
Springer
15 years 10 months ago
2009
Springer
Mining feedback information from user click-through data is an important issue for modern Web retrieval systems in terms of architecture analysis, performance evaluation and algor...