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» An authorization model for temporal data
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OTM
2010
Springer
15 years 2 months ago
Supporting Complex Changes in Evolving Interrelated Web Databanks
In this paper we deal with problems occurring in evolving interrelated Web databanks. Examples of such databanks are networks of interlinked scientific repositories on the Web, man...
Yannis Stavrakas, George Papastefanatos
DMDW
2001
232views Management» more  DMDW 2001»
15 years 6 months ago
Towards Data Warehouse Quality Metrics
Organizations are adopting datawarehouses to manage information efficiently as "the" main organizational asset. It is essential that we can assure the information qualit...
Coral Calero, Mario Piattini, Carolina Pascual, Ma...
ICA
2007
Springer
15 years 8 months ago
Underdetermined Source Separation Using Mixtures of Warped Laplacians
In a previous work, the authors have introduced a Mixture of Laplacians model in order to cluster the observed data into the sound sources that exist in an underdetermined two-sens...
Nikolaos Mitianoudis, Tania Stathaki
CN
2004
100views more  CN 2004»
15 years 4 months ago
Study of long-duration MPEG-trace segmentation methods for developing frame-size-based traffic models
Texture and temporal variations in scenes, and peculiarities of MPEG compression algorithms result in very complex frame-size data sets for any long-duration variable bit rate (VB...
Uttam K. Sarkar, Subramanian Ramakrishnan, Dilip S...
CCS
2009
ACM
16 years 5 months ago
A conceptual framework for Group-Centric secure information sharing
In this paper, we propose a conceptual framework for developing a family of models for Group-Centric information sharing. The traditional approach to information sharing, characte...
Ram Krishnan, Ravi S. Sandhu, Jianwei Niu, William...