1323 search results - page 183 / 265 » Updatable Security Views |
PODS
2000
ACM
14 years 2 months ago
2000
ACM
The problem of query containment is fundamental to many aspects of database systems, including query optimization, determining independence of queries from updates, and rewriting ...
VLDB
1999
ACM
14 years 2 months ago
1999
ACM
On-Line Analytical Processing (OLAP) based on a dimensional view of data is being used increasingly for the purpose of analyzing very large amounts of data. To improve query perfo...
ICPR
2010
IEEE
14 years 2 months ago
2010
IEEE
Semantic analysis of a document collection can be viewed as an unsupervised clustering of the constituent words and documents around hidden or latent concepts. This has shown to i...
TIME
1994
IEEE
14 years 2 months ago
1994
IEEE
We describe a discrete time probabilitylogic for use as the representation language of a temporal knowledge base. In addition to the usual expressive power of a discrete temporal ...
CHI
1992
ACM
14 years 2 months ago
1992
ACM
We are investigating ways in which media space technologies can support distributed work groups through access to information that supports general awareness. Awareness involves k...