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PERCOM
2004
ACM
15 years 9 months ago
Supporting Persistent Social Groups in Ubiquitous Computing Environments Using Context-Aware Ephemeral Group Service
In this paper, we analyze the role of the social group in a Ubiquitous Computing (Ubicomp) environment as a source of contextual information. A model is presented to address the s...
Bin Wang, John Bodily, Sandeep K. S. Gupta
SACMAT
2009
ACM
15 years 4 months ago
Foundations for group-centric secure information sharing models
We develop the foundations for a theory of Group-Centric Secure Information Sharing (g-SIS), characterize a specific family of models in this arena and identify several direction...
Ram Krishnan, Ravi S. Sandhu, Jianwei Niu, William...
ACMICEC
2004
ACM
125views ECommerce» more  ACMICEC 2004»
15 years 3 months ago
A web-based consumer-oriented intelligent decision support system for personalized e-services
Due to the rapid advancement of electronic commerce and web technologies in recent years, the concepts and applications of decision support systems have been significantly extende...
Chien-Chih Yu
DOLAP
2004
ACM
15 years 3 months ago
Evaluating XML-extended OLAP queries based on a physical algebra
In today’s OLAP systems, integrating fast changing data, e.g., stock quotes, physically into a cube is complex and time-consuming. The widespread use of XML makes it very possib...
Xuepeng Yin, Torben Bach Pedersen
ADC
2004
Springer
109views Database» more  ADC 2004»
15 years 1 months ago
A Model of Dynamic Resource Allocation in Workflow Systems
Current collaborative work environments are characterized by dynamically changing organizational structures. Although there have been several efforts to refine work distribution, ...
Guido Governatori, Antonino Rotolo, Shazia Wasim S...