Sciweavers

DGCI
2009
Springer
14 years 6 months ago
Distances on Lozenge Tilings
In this paper, a structural property of the set of lozenge tilings of a 2n-gon is highlighted. We introduce a simple combinatorial value called Hamming-distance, which is a lower b...
Olivier Bodini, Thomas Fernique, Eric Rémil...
COCOON
2009
Springer
14 years 6 months ago
Limits to List Decoding Random Codes
It has been known since [Zyablov and Pinsker 1982] that a random q-ary code of rate 1 − Hq(ρ) − ε (where 0 < ρ < 1 − 1/q, ε > 0 and Hq(·) is the q-ary entropy ...
Atri Rudra
COCO
2009
Springer
124views Algorithms» more  COCO 2009»
14 years 6 months ago
The Maximum Communication Complexity of Multi-Party Pointer Jumping
—We study the one-way number-on-the-forhead (NOF) communication complexity of the k-layer pointer jumping problem. Strong lower bounds for this problem would have important impli...
Joshua Brody
COCO
2009
Springer
131views Algorithms» more  COCO 2009»
14 years 6 months ago
A Multi-Round Communication Lower Bound for Gap Hamming and Some Consequences
—The Gap-Hamming-Distance problem arose in the context of proving space lower bounds for a number of key problems in the data stream model. In this problem, Alice and Bob have to...
Joshua Brody, Amit Chakrabarti
COCO
2009
Springer
119views Algorithms» more  COCO 2009»
14 years 6 months ago
An Approximation Algorithm for Approximation Rank
One of the strongest techniques available for showing lower bounds on quantum communication complexity is the logarithm of the approximation rank of the communication matrix— th...
Troy Lee, Adi Shraibman
ATAL
2009
Springer
14 years 6 months ago
Directed soft arc consistency in pseudo trees
We propose an efficient method that applies directed soft arc consistency to a Distributed Constraint Optimization Problem (DCOP) which is a fundamental framework of multi-agent ...
Toshihiro Matsui, Marius-Calin Silaghi, Katsutoshi...
WINE
2009
Springer
178views Economy» more  WINE 2009»
14 years 6 months ago
The Geometry of Truthfulness
We study the geometrical shape of the partitions of the input space created by the allocation rule of a truthful mechanism for multi-unit auctions with multidimensional types and ...
Angelina Vidali
WDAG
2009
Springer
166views Algorithms» more  WDAG 2009»
14 years 6 months ago
New Bounds for the Controller Problem
The (M, W)-controller, originally studied by Afek, Awerbuch, Plotkin, and Saks, is a basic ted tool that provides an abstraction for managing the consumption of a global resource ...
Yuval Emek, Amos Korman
APPROX
2009
Springer
118views Algorithms» more  APPROX 2009»
14 years 6 months ago
Hellinger Strikes Back: A Note on the Multi-party Information Complexity of AND
The AND problem on t bits is a promise decision problem where either at most one bit of the input is set to 1 (NO instance) or all t bits are set to 1 (YES instance). In this note...
T. S. Jayram
LICS
2009
IEEE
14 years 6 months ago
An Improved Lower Bound for the Complementation of Rabin Automata
Automata on infinite words (ω-automata) have wide applications in formal language theory as well as in modeling and verifying reactive systems. Complementation of ωautomata is ...
Yang Cai, Ting Zhang, Haifeng Luo