presenter : jhou, yu-liang authors : teuvo kohonen 2013,nn
DESCRIPTION
Essentials of the self-organizing map. Presenter : JHOU, YU-LIANG Authors : Teuvo Kohonen 2013,NN. Outlines. Motivation Objectives Methodology Application Conclusions Comments. Motivation. - PowerPoint PPT PresentationTRANSCRIPT
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Intelligent Database Systems Lab
Presenter : JHOU, YU-LIANG
Authors : Teuvo Kohonen
2013,NN
Essentials of the self-organizing map
![Page 2: Presenter : JHOU, YU-LIANG Authors : Teuvo Kohonen 2013,NN](https://reader036.vdocuments.site/reader036/viewer/2022062422/5681331e550346895d99e90f/html5/thumbnails/2.jpg)
Intelligent Database Systems Lab
Outlines
MotivationObjectivesMethodologyApplicationConclusionsComments
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Intelligent Database Systems Lab
Motivation• The self-organizing map (SOM) is an
automatic data-analysis method. It is widely
applied to clustering problems and data
exploration in many areas .
• New, very promising applications exist in
bioinformatics.
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Intelligent Database Systems Lab
Objectives• The self-organizing map (SOM) principle has been
used extensively as an analytical and visualization
tool in exploratory data analysis .
• Introduce the principle of SOM and operational
processes
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MethodologyThe original, stepwise recursive SOM algorithm
SOM operational process
Find BMU
Result
Initialize
Update
Input data set
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Intelligent Database Systems Lab
MethodologyThe original, stepwise recursive SOM algorithm
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Intelligent Database Systems Lab
Application of areas of SOM
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Intelligent Database Systems Lab
ApplicationSOMs of document collections
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Intelligent Database Systems Lab
ApplicationHuman endogenous retroviruses
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Intelligent Database Systems Lab
Conclusions• Perhaps one of the main virtues of the basic SOM
algorithm is that one can compute really large mappings in reasonable time, using only personal computers.
• This author strongly encourages the use of two public-domain software packages developed by the
SOM_PAK Team and the SOM Toolbox Team.
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Intelligent Database Systems Lab
Comments
This paper makes me a better understanding of the principle of SOM applications and processes
Applications-Self organizing map