Self-organizing Networks Flashcards

1
Q

Beschreib Feature Maps und topology preservation

A
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1
Q

Beschreib Clustering mit NN

A
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2
Q

Wie setzt man topology preservation in einem NN um?

A
  • we do not actually need the inhibitory connections
  • just use a neighborhood of positive interactions: h(i,j) = neighbourhood strength
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3
Q

Wie groß sollten Nachbarschaften in einem NN zum clustern sein?

A
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4
Q

Wie wird geclustert anhand von SOMs?

A
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5
Q

Was ist die SOM “Cost Function”?

A
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6
Q

Beschreib den SOM Algorithm in Short

A
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7
Q

Beschreib den SOM Algorithmus im Detail

A
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8
Q

Wann overfittet ein NN bei SOM?

A

Bei einem großen network

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9
Q

Wann underfittet ein NN bei SOM?

A

bei einem kleinen network

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10
Q

SOM

Was wäre, wenn folgendes nicht gelten würde?
“Neighborhood interaction ties parameters to each other”

A
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11
Q

Clustering via NN

Was sind Shortcomings of Static Models
in a Non-stationary Environment

A
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12
Q

NN Clustering

Beschreib Growing Neural Gas – GNG

A
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13
Q

NN Clustering

Beschreib Growing When Required – GWR

A
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