697 search results - page 65 / 140 » Convex Functions on Discrete Sets |
ICASSP
2011
IEEE
13 years 16 days ago
2011
IEEE
In this paper we present two results on reducing the peak power of orthogonal frequency division multiplexing (OFDM) symbols via constellation extension (CE). The first result is...
DGCI
2006
Springer
14 years 14 days ago
2006
Springer
Differential operators are required to compute several characteristics for continuous surfaces, as e.g. tangents, curvature, flatness, shape descriptors. We propose to replace diff...
GM
1999
Springer
14 years 1 months ago
1999
Springer
In many applications one is concerned with the approximation of functions from a finite set of scattered data sites with associated function values. We describe a scheme for cons...
VLDB
2007
ACM
14 years 9 months ago
2007
ACM
An optimization query asks for one or more data objects that maximize or minimize some function over the data set. We propose a general class of queries, model-based optimization ...
DCC
2006
IEEE
14 years 8 months ago
2006
IEEE
We investigate the optimum transmission strategy that minimizes the overall distortion for delaysensitive but distortion-tolerant data. We consider a set of source symbols residin...