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PERCOM
2004
ACM
16 years 6 months ago
Models, Protocols, and Architectures for Secure Pervasive Computing: Challenges and Research Directions
We explore the challenges and research directions in building models, protocols and architectures to support security in pervasive computing environments. We argue that to be succ...
Roshan K. Thomas, Ravi S. Sandhu
ICML
1995
IEEE
16 years 7 months ago
Learning Policies for Partially Observable Environments: Scaling Up
Partially observable Markov decision processes (pomdp's) model decision problems in which an agent tries to maximize its reward in the face of limited and/or noisy sensor fee...
Michael L. Littman, Anthony R. Cassandra, Leslie P...
WWW
2007
ACM
16 years 7 months ago
Measuring credibility of users in an e-learning environment
Learning Villages (LV) is an E-learning platform for people's online discussions and frequently citing postings of one another. In this paper, we propose a novel method to ra...
Wei Wei, Jimmy Ho-Man Lee, Irwin King
CHI
2002
ACM
16 years 6 months ago
Evaluating the effectiveness of spatial memory in 2D and 3D physical and virtual environments
User interfaces can improve task performance by exploiting the powerful human capabilities for spatial cognition. This opportunity has been demonstrated by many prior experiments....
Andy Cockburn, Bruce J. McKenzie
ICASSP
2009
IEEE
16 years 1 months ago
A speech fragment approach to localising multiple speakers in reverberant environments
Sound source localisation cues are severely degraded when multiple acoustic sources are active in the presence of reverberation. We present a binaural system for localising simult...
Heidi Christensen, Ning Ma, Stuart N. Wrigley, Jon...