514 search results - page 7 / 103 » Foundations of Aggregation Constraints |
JCSS
2002
13 years 7 months ago
2002
AAAI
2000
13 years 9 months ago
2000
Many problem-solving tasks can be formalized as constraint satisfaction problems (CSPs). In a multi-agent setting, information about constraints and variables may belong to differ...
ECIR
2003
Springer
13 years 9 months ago
2003
Springer
In this paper we present an initial study on the use of both high and low level MPEG-7 descriptions for video retrieval. A brief survey of current XML indexing techniques shows tha...
BIRTHDAY
2009
Springer
14 years 3 months ago
2009
Springer
Abstract. This chapter considers the different temporal constructs appeared in the literature of temporal conceptual models (timestamping and evolution constraints), and it provid...
MMMACNS
2005
Springer
14 years 1 months ago
2005
Springer
A new model for representing temporal access control policies is introduced. In this model, temporal authorizations are represented by time attributes associated with both subjects...