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CIAC
2010
Springer
263views Algorithms» more  CIAC 2010»
14 years 2 months ago
The Complexity of Computing Minimal Unidirectional Covering Sets
Abstract. Given a binary dominance relation on a set of alternatives, a common thread in the social sciences is to identify subsets of alternatives that satisfy certain notions of ...
Dorothea Baumeister, Felix Brandt, Felix Fischer, ...
ICASSP
2010
IEEE
13 years 3 months ago
Unidirectional graph-based wavelet transforms for efficient data gathering in sensor networks
We design lifting-based wavelet transforms for any arbitrary communication graph in a wireless sensor network (WSN). Since transmitting raw data bits along the routing trees in WS...
Sunil K. Narang, Godwin Shen, Antonio Ortega
ESORICS
2009
Springer
14 years 5 months ago
Set Covering Problems in Role-Based Access Control
Abstract. Interest in role-based access control has generated considerable research activity in recent years. A number of interesting problems related to the well known set cover p...
Liang Chen, Jason Crampton
MSS
2008
IEEE
118views Hardware» more  MSS 2008»
13 years 4 months ago
Computing the minimal covering set
We present the first polynomial-time algorithm for computing the minimal covering set of a (weak) tournament. The algorithm draws upon a linear programming formulation of a subset...
Felix Brandt, Felix A. Fischer