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» Multiplication by a Constant is Sublinear
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147
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STACS
2007
Springer
15 years 9 months ago
Small Space Representations for Metric Min-Sum k -Clustering and Their Applications
The min-sum k-clustering problem is to partition a metric space (P, d) into k clusters C1, . . . , Ck ⊆ P such that k i=1 p,q∈Ci d(p, q) is minimized. We show the first effi...
Artur Czumaj, Christian Sohler
141
Voted
STACS
2009
Springer
15 years 10 months ago
Quantum Query Complexity of Multilinear Identity Testing
Motivated by the quantum algorithm for testing commutativity of black-box groups (Magniez and Nayak, 2007), we study the following problem: Given a black-box finite ring by an add...
Vikraman Arvind, Partha Mukhopadhyay
139
Voted
ISAAC
2004
Springer
135views Algorithms» more  ISAAC 2004»
15 years 8 months ago
Geometric Optimization Problems Over Sliding Windows
Abstract. We study the problem of maintaining a (1+ )-factor approximation of the diameter of a stream of points under the sliding window model. In one dimension, we give a simple ...
Timothy M. Chan, Bashir S. Sadjad
121
Voted
EUROCRYPT
2006
Springer
15 years 7 months ago
Fully Collusion Resistant Traitor Tracing with Short Ciphertexts and Private Keys
We construct a fully collusion resistant tracing traitors system with sublinear size ciphertexts and constant size private keys. More precisely, let N be the total number of users...
Dan Boneh, Amit Sahai, Brent Waters
CRYPTO
2001
Springer
152views Cryptology» more  CRYPTO 2001»
15 years 8 months ago
Secure Distributed Linear Algebra in a Constant Number of Rounds
Consider a network of processors among which elements in a finite field K can be verifiably shared in a constant number of rounds. Assume furthermore constant-round protocols ar...
Ronald Cramer, Ivan Damgård