Sciweavers

1942 search results - page 12 / 389
» Matroids from modules
Sort
View
STOC
2012
ACM
221views Algorithms» more  STOC 2012»
11 years 10 months ago
From query complexity to computational complexity
We consider submodular optimization problems, and provide a general way of translating oracle inapproximability results arising from the symmetry gap technique to computational co...
Shahar Dobzinski, Jan Vondrák
JCM
2007
114views more  JCM 2007»
13 years 7 months ago
Tunable Pulse Amplitude and Position Modulation Technique for Reliable Optical Wireless Communication Channels
—Modulation techniques have attracted increasing attention in optical wireless communications. Basic schemes such as on off keying (OOK), pulse amplitude modulation (PAM) and pul...
Yu Zeng, Roger J. Green, Shaobo Sun, Mark S. Leeso...
ICASSP
2011
IEEE
12 years 11 months ago
Detection and segmentation of fmcw radar signals based on the chirplet transform
In this paper we present a algorithm designed to detect and characterise the signal coming from Frequency Modulation Continuous Wave radars. The signals are made of linear frequen...
Fabien Millioz, Michael E. Davies
ICCV
2003
IEEE
14 years 24 days ago
Combinatorial Constraints on Multiple Projections of a Set of Points
Multiple projections of a scene cannot be arbitrary, the allowed configurations being given by matching constraints. This paper presents new matching constraints on multiple proj...
Tomás Werner
ICASSP
2008
IEEE
14 years 1 months ago
Modulation decompositions for the interpolation of long gaps in acoustic signals
This paper presents a modulation-based reconstruction method for audio signals across long gaps of missing samples. We use LTI filterbanks followed by a multiplicative model that...
Pascal Clark, Les E. Atlas