Sciweavers

21 search results - page 1 / 5
» An Interval Algebra for Indeterminate Time
Sort
View
AAAI
2000
13 years 6 months ago
An Interval Algebra for Indeterminate Time
Temporal indeterminacy is an inherent problem which arises when capturing and manipulating temporal data in many application areas. As such, representation and manipulation of tim...
Wes Cowley, Dimitris Plexousakis
AAAI
1990
13 years 6 months ago
Weak Representations of Interval Algebras
Ladkin and Maddux [LaMa87] showed how to interpret the calculus of time intervals defined by Allen [AZ2831 in terms of representations of a particular relation algebra, and proved...
Gerard Ligozat
MMMACNS
2005
Springer
13 years 10 months ago
Foundation for a Time Interval Access Control Model
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...
Francis B. Afinidad, Timothy E. Levin, Cynthia E. ...
HICSS
2006
IEEE
126views Biometrics» more  HICSS 2006»
13 years 11 months ago
A Model for Temporal Interval Authorizations
A new model for representing temporal access control policies is introduced. In this model, temporal authorizations are represented by time attributes associated with subjects and...
Francis B. Afinidad, Timothy E. Levin, Cynthia E. ...
BPSC
2009
152views Business» more  BPSC 2009»
13 years 6 months ago
A Formal Temporal Semantics for Microsoft Project based on Allen's Interval Algebra
Process modelling systems are complex and difficult to compare. A key attribute of any process modelling formalism or tool is time which involves how it handles and represents tem...
Denis Gagné, André Trudel