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TWC
2008
101views more  TWC 2008»
15 years 5 months ago
Interplay of spectral efficiency, power and doppler spectrum for reference-signal-assisted wireless communication
Expressions relating spectral efficiency, power, and Doppler spectrum, are derived for Rayleigh-faded wireless channels with Gaussian signal transmission. No side information on th...
Angel Lozano
TIP
2002
112views more  TIP 2002»
15 years 5 months ago
Image compression with adaptive local cosines: a comparative study
Abstract--The goal of this work is twofold. First, we demonstrate that an advantage can be gained by using local cosine bases over wavelets to encode images that contain periodic t...
François G. Meyer
JGT
2010
103views more  JGT 2010»
15 years 4 months ago
Proof of a conjecture on fractional Ramsey numbers
: Jacobson, Levin, and Scheinerman introduced the fractional Ramsey function rf (a1,a2, ...,ak) as an extension of the classical definition for Ramsey numbers. They determined an e...
Jason Brown, Richard Hoshino
ICWSM
2009
15 years 3 months ago
Blogging Together: An Examination of Group Blogs
This paper presents the first examination of the growing phenomenon of multi-author, or group blogs. Using a large collection of blog posts gathered over an eight month period, we...
Marti A. Hearst, Susan T. Dumais
SADM
2011
15 years 27 days ago
Random survival forests for high-dimensional data
: Minimal depth is a dimensionless order statistic that measures the predictiveness of a variable in a survival tree. It can be used to select variables in high-dimensional problem...
Hemant Ishwaran, Udaya B. Kogalur, Xi Chen, Andy J...