280 search results - page 25 / 56 » Approximate nearest neighbors using sparse representations |
CORR
2010
Springer
14 years 9 months ago
2010
Springer
Recent work has demonstrated that using a carefully designed dictionary instead of a predefined one, can improve the sparsity in jointly representing a class of signals. This has m...
CORR
2010
Springer
14 years 9 months ago
2010
Springer
Signal modeling lies at the core of numerous signal and image processing applications. A recent approach that has drawn considerable attention is sparse representation modeling, in...
SIAMSC
2008
14 years 9 months ago
2008
In this Part II of this paper we first refine the analysis of error-free vector transformations presented in Part I. Based on that we present an algorithm for calculating the round...
ICDAR
2003
IEEE
15 years 2 months ago
2003
IEEE
In this paper we describe work relating to classification of web documents using a graph-based model instead of the traditional vector-based model for document representation. We ...
VTC
2008
IEEE
15 years 4 months ago
2008
IEEE
Abstract— Diversity can play an important role in the performance improvement of a communication system in fading channels. The achievable performance with signal space diversity...