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NCA
2007
IEEE
14 years 3 months ago
Discovering Web Workload Characteristics through Cluster Analysis
In this paper we present clustering analysis of sessionbased Web workloads of eight Web servers using the intrasession characteristics (i.e., number of requests per session, sessi...
Fengbin Li, Katerina Goseva-Popstojanova, Arun Ros...
HYBRID
2007
Springer
14 years 3 months ago
Coupling from the Past in Hybrid Models for File Sharing Peer to Peer Systems
In this paper we show how file sharing peer to peer systems can be modeled by hybrid systems with a continuous part corresponding to a fluid limit of files and a discrete part c...
Bruno Gaujal, Florence Perronnin
SACMAT
2006
ACM
14 years 2 months ago
Towards reasonability properties for access-control policy languages
The growing importance of access control has led to the definition of numerous languages for specifying policies. Since these languages are based on different foundations, langua...
Michael Carl Tschantz, Shriram Krishnamurthi
AIED
2005
Springer
14 years 2 months ago
Inferring learning and attitudes from a Bayesian Network of log file data
A student's goals and attitudes while interacting with a tutor are typically unseen and unknowable. However their outward behavior (e.g. problem-solving time, mistakes and hel...
Ivon Arroyo, Beverly Park Woolf
ITS
2004
Springer
138views Multimedia» more  ITS 2004»
14 years 2 months ago
A Metacognitive ACT-R Model of Students' Learning Strategies in Intelligent Tutoring Systems
Research has shown that students’ problem-solving actions vary in type and duration. Among other causes, this behavior is a result of strategies that are driven by different goal...
Ido Roll, Ryan Shaun Baker, Vincent Aleven, Kennet...