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FOCS
2009
IEEE
14 years 2 months ago
Settling the Complexity of Arrow-Debreu Equilibria in Markets with Additively Separable Utilities
We prove that the problem of computing an Arrow-Debreu market equilibrium is PPAD-complete even when all traders use additively separable, piecewise-linear and concave utility fun...
Xi Chen, Decheng Dai, Ye Du, Shang-Hua Teng
IROS
2009
IEEE
185views Robotics» more  IROS 2009»
14 years 2 months ago
Constraint task-based control in industrial settings
Abstract— Direct physical human-robot interaction has become a central part in the research field of robotics today. To use the advantages of the potential for humans and robots...
Claus Lenz, Markus Rickert, Giorgio Panin, Alois K...
ESWS
2005
Springer
14 years 1 months ago
OWL-Eu: Adding Customised Datatypes into OWL
Although OWL is rather expressive, it has a very serious limitation on datatypes; i.e., it does not support customised datatypes. It has been pointed out that many potential users...
Jeff Z. Pan, Ian Horrocks
ICALP
2001
Springer
14 years 20 days ago
Improved Lower Bounds on the Randomized Complexity of Graph Properties
We prove a lower bound of (n4/3 log1/3 n) on the randomized decision tree complexity of any nontrivial monotone n-vertex graph property, and of any nontrivial monotone bipartite g...
Amit Chakrabarti, Subhash Khot
CSFW
1998
IEEE
13 years 11 months ago
Probabilistic Noninterference in a Concurrent Language
In previous work [16], we give a type system that guarantees that well-typed multithreaded programs are possibilistically noninterfering. If thread scheduling is probabilistic, ho...
Dennis M. Volpano, Geoffrey Smith