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Fast-Learning Adaptive-Subspace Self-Organizing Map: An Application to Saliency-Based Invariant Image Feature Construction. Presenter : You Lin Chen Authors : Huicheng Zheng, Member, IEEE, Grégoire Lefebvre, and Christophe Laurent. 2007.WI.7. Outline. Motivation - PowerPoint PPT Presentation
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Intelligent Database Systems Lab
國立雲林科技大學National Yunlin University of Science and Technology
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Fast-Learning Adaptive-Subspace Self-Organizing Map:
An Application to Saliency-BasedInvariant Image Feature Construction
Presenter : You Lin Chen
Authors : Huicheng Zheng, Member, IEEE, Grégoire Lefebvre,
and Christophe Laurent
2007.WI.7
Intelligent Database Systems Lab
N.Y.U.S.T.
I. M.
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Outline
Motivation
Objective
Methodology
Experiments
Conclusion
Comments
Intelligent Database Systems Lab
N.Y.U.S.T.
I. M.Motivation
The traditional learning procedure of the ASSOM involves computations related to a rotation operator matrix.
The rotation computations which not only is memory demanding, but also has computational load quadratic to the input dimension.
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2 4.
83.3
22+4.82+3.32
Intelligent Database Systems Lab
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I. M.Objectives
In this paper will show that in the ASSOM learning which leads to a computational load linear to both the input dimension and the subspace dimension.
we are also interested in applying ASSOM to saliency-based invariant feature construction for image classification.
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I. M.Methodology_1
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Kohonen’s ASSOM learning algorithm
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Robbins–Monro stochastic
approximation
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BFL-ASSOM
FL-ASSOMBFL-ASSOM
ASSOM
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Experiments_1
The input episodes are generated by filtering a white noise image with a second-order Butterworth filter. The cutoff frequency isset to 0.6 times the Nyquist frequency of the sampling lattice.
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I. M.Methodology_2
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Conclusion
The ASSOMis useful for dimension reduction, invariant feature generation, and visualization.
BFL-ASSOM, where the increment of each basis vector is a linear combination of the component vectors in the input episode.
The SPMAS showed promising performance on a ten-category image classification problem
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Comments
Advantage …
Drawback …
Application …