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JOC
2008
86views more  JOC 2008»
13 years 11 months ago
Lower Bounds and Impossibility Results for Concurrent Self Composition
In the setting of concurrent self composition, a single protocol is executed many times concurrently by a single set of parties. In this paper, we prove lower bounds and impossibi...
Yehuda Lindell
CORR
2007
Springer
144views Education» more  CORR 2007»
13 years 11 months ago
Optimization of Information Rate Upper and Lower Bounds for Channels with Memory
—We consider the problem of minimizing upper bounds and maximizing lower bounds on information rates of stationary and ergodic discrete-time channels with memory. The channels we...
Parastoo Sadeghi, Pascal O. Vontobel, Ramtin Shams
CORR
2007
Springer
149views Education» more  CORR 2007»
13 years 11 months ago
Competitive minimax universal decoding for several ensembles of random codes
Universally achievable error exponents pertaining to certain families of channels (most notably, discrete memoryless channels (DMC’s)), and various ensembles of random codes, ar...
Yaniv Akirav, Neri Merhav
JCT
2008
100views more  JCT 2008»
13 years 11 months ago
Optimal distortion embeddings of distance regular graphs into Euclidean spaces
ABSTRACT. In this paper we give a lower bound for the least distortion embedding of a distance regular graph into Euclidean space. We use the lower bound for finding the least dist...
Frank Vallentin
JCSS
2008
96views more  JCSS 2008»
13 years 11 months ago
A combinatorial characterization of resolution width
We provide a characterization of the resolution width introduced in the context of propositional proof complexity in terms of the existential pebble game introduced in the context...
Albert Atserias, Víctor Dalmau
CORR
2007
Springer
81views Education» more  CORR 2007»
13 years 11 months ago
Throughput Scaling Laws for Wireless Networks with Fading Channels
—A network of n communication links, operating over a shared wireless channel, is considered. Fading is assumed to be the dominant factor affecting the strength of the channels b...
Masoud Ebrahimi, Mohammad Ali Maddah-Ali, Amir K. ...
COR
2007
183views more  COR 2007»
13 years 12 months ago
Arcs-states models for the vehicle routing problem with time windows and related problems
This paper presents several Arcs-States models that can be applied to numerous vehicle routing problems, one of which is the well-known vehicle routing problem with capacities and...
Thierry Mautor, Edith Naudin
COMGEO
2007
ACM
13 years 12 months ago
Geometric dilation of closed planar curves: New lower bounds
Given two points on a closed planar curve, C, we can divide the length of a shortest connecting path in C by their Euclidean distance. The supremum of these ratios, taken over all...
Annette Ebbers-Baumann, Ansgar Grüne, Rolf Kl...
COMBINATORICS
2007
55views more  COMBINATORICS 2007»
13 years 12 months ago
A Note on a Problem of Hilliker and Straus
For a prime p and a vector ¯α = (α1, . . . , αk) ∈ Zk p let f (¯α, p) be the largest n such that in each set A ⊆ Zp of n elements one can find x which has a unique repr...
Miroslawa Janczak
FS
2006
102views more  FS 2006»
13 years 12 months ago
Bounds for Functions of Dependent Risks
Abstract The problem of finding the best-possible lower bound on the distribution of a non-decreasing function of n dependent risks is solved when n = 2 and a lower bound on the co...
Paul Embrechts, Giovanni Puccetti