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PODS
2007
ACM
159views Database» more  PODS 2007»
14 years 8 months ago
Generalized hypertree decompositions: np-hardness and tractable variants
The generalized hypertree width GHW(H) of a hypergraph H is a measure of its cyclicity. Classes of conjunctive queries or constraint satisfaction problems whose associated hypergr...
Georg Gottlob, Thomas Schwentick, Zoltán Mi...
CCS
2008
ACM
13 years 10 months ago
Stale-safe security properties for group-based secure information sharing
Attribute staleness arises due to the physical distribution of authorization information, decision and enforcement points. This is a fundamental problem in virtually any secure di...
Ram Krishnan, Jianwei Niu, Ravi S. Sandhu, William...
MIE
2008
119views Healthcare» more  MIE 2008»
13 years 10 months ago
Systematizing medical alerts
The current Swedish regulations for medical alerts in health records were designed for paper records. Suggestions for computerized systems are now being investigated. A proposed mo...
Mattias Pettersson, Jenny Wihlborg, Rikard Lö...
BSDCON
2003
13 years 10 months ago
ULE: A Modern Scheduler for FreeBSD
The existing thread scheduler in FreeBSD was well suited towards the computing environment that it was developed in. As the priorities and hardware targets of the project have cha...
Jeff Roberson
ATAL
2006
Springer
14 years 9 days ago
A utility-based sensing and communication model for a glacial sensor network
This paper reports on the development of a utility-based mechanism for managing sensing and communication in cooperative multi-sensor networks. The specific application considered...
Paritosh Padhy, Rajdeep K. Dash, Kirk Martinez, Ni...