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SIGGRAPH
1992
ACM
15 years 10 months ago
Predicting reflectance functions from complex surfaces
We describe a physically-based Monte Carlo technique for approximating bidirectional reflectance distribution functions (BRDFs) for a large class of geometries by directly simulat...
Stephen H. Westin, James Arvo, Kenneth E. Torrance
CORR
2011
Springer
192views Education» more  CORR 2011»
15 years 1 months ago
On cooperative patrolling: optimal trajectories, complexity analysis, and approximation algorithms
—The subject of this work is the patrolling of an environment with the aid of a team of autonomous agents. We consider both the design of open-loop trajectories with optimal prop...
Fabio Pasqualetti, Antonio Franchi, Francesco Bull...
ICISS
2005
Springer
16 years 1 days ago
Event Detection in Multilevel Secure Active Databases
The event-condition-action paradigm (also known as triggers or rules) is a powerful technology. It gives a database “active” capabilities – the ability to react automatically...
Indrakshi Ray, Wei Huang
PERCOM
2004
ACM
16 years 6 months ago
Patch Panel: Enabling Control-Flow Interoperability in Ubicomp Environments
Ubiquitous computing environments accrete slowly over time rather than springing into existence all at once. Mechanisms are needed for incremental integration-the problem of how t...
Rafael Ballagas, Andy Szybalski, Armando Fox
PDPTA
2000
15 years 7 months ago
Managing Distributed Systems with Smart Subscriptions
Abstract We describe an event-based, publishand-subscribe system based on using "smart subscriptions" to recognize weakly structured events. We present a hierarchy of sub...
Robert E. Filman, Diana D. Lee