325 search results - page 42 / 65 » A Model of Methods Access Authorization in Object-oriented D... |
ICDE
1999
IEEE
14 years 9 months ago
1999
IEEE
Most operations of the relational algebra or SQL require a sorted stream of tuples for efficient processing. Therefore, processing complex relational queries relies on efficient a...
WIDM
2005
ACM
14 years 1 months ago
2005
ACM
Markov models have been widely used for modelling users' navigational behaviour in the Web graph, using the transitional probabilities between web pages, as recorded in the w...
ICDE
2006
IEEE
14 years 1 months ago
2006
IEEE
The CVS (Concurrent Versions System) software is a popular method for recording modifications to data objects, in addition to concurrent access to data in a multi-user environmen...
DBSEC
2004
13 years 9 months ago
2004
A sequence of queries submitted by a database user within a short period of time may have a single, illuminating explanation. In this paper we consider sequences of single-record q...
SIGIR
2003
ACM
14 years 27 days ago
2003
ACM
Hierarchies provide a means of organizing, summarizing and accessing information. We describe a method for automatically generating hierarchies from small collections of text, and...