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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Neurocomputingarrow_drop_down
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
Neurocomputing
Article . 2016 . Peer-reviewed
License: Elsevier TDM
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A robust local sparse coding method for image classification with Histogram Intersection Kernel

Authors: Pan Li; Yang Liu; Guojun Liu; Maozu Guo; Zhiyong Pan;

A robust local sparse coding method for image classification with Histogram Intersection Kernel

Abstract

Local sparse coding methods have been shown to lead to increased performance in image classification when it takes histograms as inputs. These methods often use Euclidean ( l 2 ) distance to learn the dictionary and encode the histograms. However, it has been shown that Histogram Intersection Kernel (HIK) is more effective to compare histograms. In this paper, we combine Histogram Intersection Kernel with local sparse coding. We implement dictionary learning and feature encoding on the mapping space that corresponds to the kernel. To encode the features, we propose two methods: one accurate method generating codes consisting of positive and negative values and one approximate method generating only non-negative values. Both of the two encoding methods run very fast. To verify our method, we conduct some experiments on two popular datasets: Caltech-101 and Caltech-256. The results show that the features extracted by our method are more discriminative than other methods and it reaches state-of-the-art result on Caltech-101 when taking single descriptor HOG as input. In addition, it shows that the codes with non-negative constraint are more effective than that without the constraint.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
13
Top 10%
Top 10%
Top 10%
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