5. The Applications of Kohonen
Network
1. Visualization aids
2. Dimension reduction of large, high
dimensional data sets
3. Classification purposes
4. Speech recognition
5. Surface reconstruction in Computer
Graphics
Dr gafar zen alabdeen salh
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6. 悋悵悋惠 悋惠惴 忰 惠惓
惺惶悋愃悸悋惺惆悸惠愆悋忰
悋愀惡愃惘悋principle of topographic map
formation(1990).惠悵惘悵悋悋惺惆悸悖
悋惺悋悋spatial location惺惶惡
悋悽惘悴悋惠悋愀惡愃惘悋悋惴惘愕悸惺悸愀
悋惆悽悋惠.悋悋惠惘忰悖惷悋悵悴惠忰
悋愕悸悋惡悋愆悋惠悋.愕惠悽惶悵悋
悋悵悴悋愕悋惠悋惘悧愕悸忰悋惠悋惠惴悋悵悋惠
悋悽惠惓悋惡惺惆悵悋忰悋愕惡
惡愕悸.
Dr gafar zen alabdeen salh
(2011) 6
7. Feature-mapping Kohonen model
Dr gafar zen alabdeen salh
(2011) 7
Input layer
Kohonen layer
(a)
Input layer
Kohonen layer
1 1
(b)
00
15. Mexican hat function
悋愕悸 悋惡惺悸 惆悋悸
惠惓悵悋惆悋悸悋惺悋悸惡悋愕悋悸惡惺惶惡
悋悋悧慍悖悽悵悋悸悋悋惘惠惡悋愀悋惠愀惡悸.
愀惡悋悵悋惆悋悸悖惘惡悋悴惘悋(愀悸悒惓悋惘悸
悴悋惡悸惶惘悸悖惆)惠悖惓惘悒惓悋惘悸悴悋惘
悋惡惺惆(愆惡悋惴悋悋惺an inhibitory)惠悋惓惘悋惺
惺惠惆
悴悋惘悋惡惺惆悴惆悋(悋愀悸悋忰愀悸惡愆惡悸
悋惴悋悋惺)惠悖惓惘悒惓悋惘悸惷惺悋悵悋惺悋惆悸.
悋惴惘悋愆悋惠悋
Dr gafar zen alabdeen salh
(2011) 15
16. 悋愕悸 悋惡惺悸 惆悋悸
The Mexican hat function of lateral connection
Dr gafar zen alabdeen salh
(2011) 16
Connection
strength
Distance
Excitatory
effect
Inhibitory
effect
Inhibitory
effect
0
1