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» The Space Complexity of Approximating the Frequency Moments
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ICC
2007
IEEE
106views Communications» more  ICC 2007»
14 years 1 months ago
Differential Space-Frequency Modulation and 2D-Detection for MIMO-OFDM
Abstract— In this paper differential space–frequency modulation (DSFM) for transmission over multiple–input multiple– output channels using orthogonal frequency division mu...
Volker Pauli, Lutz H.-J. Lampe, Johannes Huber
STOC
2010
ACM
199views Algorithms» more  STOC 2010»
14 years 13 days ago
Zero-One Frequency Laws
Data streams emerged as a critical model for multiple applications that handle vast amounts of data. One of the most influential and celebrated papers in streaming is the “AMSâ...
Vladimir Braverman and Rafail Ostrovsky
COCO
2009
Springer
131views Algorithms» more  COCO 2009»
14 years 2 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
IM
2006
13 years 7 months ago
Estimating Entropy and Entropy Norm on Data Streams
We consider the problem of computing information theoretic functions such as entropy on a data stream, using sublinear space. Our first result deals with a measure we call the &quo...
Amit Chakrabarti, Khanh Do Ba, S. Muthukrishnan
ICASSP
2011
IEEE
12 years 11 months ago
Dual frame of frequency warping operators
In this work we introduce the dual frame operator relative to the aliasing compensated frequency warping operator for nonsmooth warping functions. Except for approximation errors,...
Salvatore Caporale, Nicolo Speciale