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» Information and Control in Gray-Box Systems
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RECSYS
2009
ACM
16 years 1 months ago
Improving rating estimation in recommender systems using aggregation- and variance-based hierarchical models
Previous work on using external aggregate rating information showed that this information can be incorporated in several different types of recommender systems and improves their...
Akhmed Umyarov, Alexander Tuzhilin
ICDE
2004
IEEE
100views Database» more  ICDE 2004»
16 years 8 months ago
Simple, Robust and Highly Concurrent B-trees with Node Deletion
Why might B-tree concurrency control still be interesting? For two reasons: (i) currently exploited "real world" approaches are complicated; (ii) simpler proposals are n...
David B. Lomet
CAISE
1999
Springer
15 years 11 months ago
Applying Graph Reduction Techniques for Identifying Structural Conflicts in Process Models
Abstract. The foundation of a process model lies in its control flow specifications. Using a generic process modeling language for workflows, we show how a control flow specificati...
Wasim Sadiq, Maria E. Orlowska
CAI
2006
Springer
15 years 6 months ago
Formal Verification of Security Model Using SPR Tool
In this paper, formal verification methodologies and the SPR (Safety Problem Resolver) model checking tool are used for verifying a security model's safety. The SPR tool makes...
Il-Gon Kim, Miyoung Kang, Jin-Young Choi, Peter D....
ECOOPW
2001
Springer
15 years 11 months ago
Adaptive Object-Models and Metamodeling Techniques
Many object-oriented information systems share an architectural style that emphasizes flexibility and dynamically configurable. Business rules are stored in a database instead of ...
Nicolas Revault, Joseph W. Yoder