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IPL
2010
111views more  IPL 2010»
13 years 10 months ago
Connecting face hitting sets in planar graphs
We show that any face hitting set of size n of a connected planar graph with a minimum degree of at least 3 is contained in a connected subgraph of size 5n − 6. Furthermore we s...
Pascal Schweitzer, Patrick Schweitzer
CORR
2010
Springer
147views Education» more  CORR 2010»
13 years 10 months ago
Strong direct product theorems for quantum communication and query complexity
A strong direct product theorem (SDPT) states that solving n instances of a problem requires ˝.n/ times the resources for a single instance, even to achieve success probability 2 ...
Alexander A. Sherstov
CORR
2010
Springer
155views Education» more  CORR 2010»
13 years 10 months ago
A New Upper Bound on the Average Error Exponent for Multiple-Access Channels
A new lower bound for the average probability or error for a two-user discrete memoryless (DM) multiple-access channel (MAC) is derived. This bound has a structure very similar to...
Ali Nazari, S. Sandeep Pradhan, Achilleas Anastaso...
RSA
2008
85views more  RSA 2008»
13 years 11 months ago
On a universal best choice algorithm for partially ordered sets
For the only known universal best choice algorithm for partially ordered sets with known cardinality and unknown order (proposed by J. Preater) we improve the estimation of the lo...
Nicholas Georgiou, Malgorzata Kuchta, Michal Moray...
ML
2007
ACM
108views Machine Learning» more  ML 2007»
13 years 11 months ago
Unconditional lower bounds for learning intersections of halfspaces
We prove new lower bounds for learning intersections of halfspaces, one of the most important concept classes in computational learning theory. Our main result is that any statist...
Adam R. Klivans, Alexander A. Sherstov
TIT
2002
78views more  TIT 2002»
13 years 11 months ago
Optimal placement of training for frequency-selective block-fading channels
The problem of placing training symbols optimally for orthogonal frequency-division multiplexing (OFDM) and single-carrier systems is considered. The channel is assumed to be quasi...
Srihari Adireddy, Lang Tong, Harish Viswanathan
TVLSI
1998
81views more  TVLSI 1998»
13 years 11 months ago
Maximum power estimation for CMOS circuits using deterministic and statistical approaches
— Excessive instantaneous power consumption may reduce the reliability and performance of VLSI chips. Hence, to synthesize circuits with high reliability, it is imperative to ef...
Chuan-Yu Wang, Kaushik Roy
TPDS
1998
92views more  TPDS 1998»
13 years 11 months ago
An Efficient Algorithm for Row Minima Computations on Basic Reconfigurable Meshes
—A matrix A of size m œ n containing items from a totally ordered universe is termed monotone if, for every i, j, 1 ‹ i < j ‹ m, the minimum value in row j lies below or to...
Koji Nakano, Stephan Olariu
RSA
1998
93views more  RSA 1998»
13 years 11 months ago
Parallel randomized load balancing
It is well known that after placing n balls independently and uniformly at random into n bins, the fullest bin holds (logn=log logn) balls with high probability. Recently, Azar et...
Micah Adler, Soumen Chakrabarti, Michael Mitzenmac...
DM
1999
101views more  DM 1999»
13 years 11 months ago
Characterizations of bipartite Steinhaus graphs
We characterize bipartite Steinhaus graphs in three ways by partitioning them into four classes and we describe the color sets for each of these classes. An interesting recursion ...
Gerard J. Chang, Bhaskar DasGupta, Wayne M. Dym&ag...