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» An Access Control Model for Video Database Systems
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UML
2005
Springer
15 years 3 months ago
Integrated Model-Based Software Development, Data Access, and Data Migration
In this paper we describe a framework for robust system maintenance that addresses specific challenges of data-centric applications. We show that for data-centric applications, cl...
Behzad Bordbar, Dirk Draheim, Matthias Horn, Ina S...
ICDE
2007
IEEE
125views Database» more  ICDE 2007»
15 years 4 months ago
Improved Buffer Size Adaptation through Cache/Controller Coupling
Database workloads seldom remain static. A system tuned by an expert for the current environment, might not always remain optimal. To deal with this situation, database systems ha...
Christian A. Lang, Bishwaranjan Bhattacharjee, Tim...
DBSEC
2007
87views Database» more  DBSEC 2007»
14 years 11 months ago
Towards a Times-Based Usage Control Model
Abstract. Modern information systems require temporal and privilegeconsuming usage of digital objects. To meet these requirements, we present a new access control model–Times-bas...
Baoxian Zhao, Ravi S. Sandhu, Xinwen Zhang, Xiaoli...
FOSSACS
2005
Springer
15 years 3 months ago
History-Based Access Control with Local Policies
Abstract. An extension of the λ-calculus is proposed, to study historybased access control. It allows for security policies with a possibly nested, local scope. We define a type ...
Massimo Bartoletti, Pierpaolo Degano, Gian Luigi F...
ICMCS
2006
IEEE
219views Multimedia» more  ICMCS 2006»
15 years 3 months ago
Analysis of Multi-User Congestion Control for Video Streaming Over Wireless Networks
When multiple video sources are live-encoded and transmitted over a common wireless network, each stream needs to adapt its encoding parameters to wireless channel fluctuations, ...
Xiaoqing Zhu, Bernd Girod