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CNIS
2006
13 years 11 months ago
STRBAC - An approach towards spatio-temporal role-based access control
The rapid emergence of GPS enabled devices, sensors and mobile equipment in commercial as well as government organizations has led to considerable research in time- and location-b...
Mahendra Kumar, Richard E. Newman
SGP
2003
13 years 11 months ago
Smooth Geometry Images
Previous parametric representations of smooth genus-zero surfaces require a collection of abutting patches (e.g. splines, NURBS, recursively subdivided polygons). We introduce a s...
Frank Losasso, Hugues Hoppe, Scott Schaefer, Joe D...
ELECTRONICMARKETS
2000
81views more  ELECTRONICMARKETS 2000»
13 years 10 months ago
On Auctions as the Negotiation Paradigm of Electronic Markets
Until recently, electronic markets were dominated by the combination of static offer schemes and fixed pricing. Static offer schemes such as online catalogues apparently bear the ...
Michael Ströbel
STOC
1997
ACM
91views Algorithms» more  STOC 1997»
14 years 2 months ago
Lower Bounds for Distributed Coin-Flipping and Randomized Consensus
We examine a class of collective coin- ipping games that arises from randomized distributed algorithms with halting failures. In these games, a sequence of local coin ips is gener...
James Aspnes
SEMWEB
2005
Springer
14 years 3 months ago
PR-OWL: A Bayesian Ontology Language for the Semantic Web
This paper addresses a major weakness of current technologies for the Semantic Web, namely the lack of a principled means to represent and reason about uncertainty. This not only h...
Paulo Cesar G. da Costa, Kathryn B. Laskey, Kennet...