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CSC662 ก

ก ก กก

Weka ! "#. ! . ก $ %& % '

&()#% )*#% +,$ก )*

ก ก กก (Cluster analysis)

2

:;*<

= Weka

>?@($%ABก ?@

%Cก *=:$?@B

ก *=:$?@กD(:< $

ก *=:$?@+=ก &*

ก *=:$?@ก ก กก

ก (?"$ก E$ @? Knowledge flow

ก ก กก (Cluster analysis)

3

;Bก ก กก Weka

Cobweb (?กก +!+=ก !?E?+H

DBScan Bก กก !(?

EM ก กก !(?!*<ก*<%!

FarthestFirst ก กก !:ก*<Eก*<%!ก

Filtered Cluster ก กก*<"ก ก $ก

MakeDensityBasedClusterer Bก กก*<(?B ก

OPTICS Bก กก !(?ก

SimpleKMeans Bก กก$ก; !(?I< :>

XMeans Bก กก*<E?$ก=! K

ก ก กก (Cluster analysis)

4

$ก :ก;Bก กก

(2)

ก ก กก (Cluster analysis)

5

J weather.arff

@relation weather

@attribute outlook {sunny, overcast, rainy}

@attribute temperature real

@attribute humidity real

@attribute windy {TRUE, FALSE}

@attribute play {yes, no}

@data

sunny,85,85,FALSE,no sunny,80,90,TRUE,no overcast,83,86,FALSE,yes rainy,70,96,FALSE,yes rainy,68,80,FALSE,yes rainy,65,70,TRUE,no overcast,64,65,TRUE,yes sunny,72,95,FALSE,no sunny,69,70,FALSE,yes rainy,75,80,FALSE,yes sunny,75,70,TRUE,yes overcast,72,90,TRUE,yes overcast,81,75,FALSE,yes

rainy,71,91,TRUE,no 6 ก ก กก (Cluster analysis)

ก=+!กK) +=*<ก$ก*;$!กก ( ก (Primary key)

ก=+!กK) +=*<A$!ก

กK) +=*<(?+H Numeric : Categorical กLE!?

ก )*<?$ก *ก กกกกK) +=J

*<%+ ?:ก Classes to cluster evaluation

Weka +E(?กK) +=J ก !

ก J?@

ก ก กก (Cluster analysis)

7

M! !@ Explorer

$ Weka

M!J weather.arff

:กC Cluster

:กSimpleKMeans

ก$ Clusterer

;ก กก ! K-means

ก ก กก (Cluster analysis)

8

:ก

Classes to clusters evaluationA:< *

"*<E!?+กก กกก

%J*<?$ก

กK) +=*<@:N

start?$H%J*<

?$ก

ก!NStart +E!?"AB!$

@!??

"AB*<E!?+ก SimpleKMeans

(3)

ก ก กก (Cluster analysis)

9

"*<E!?+กก :ก Visualize cluster assignments

:ก

Visualize cluster assignments !ก!%

N+ก"ABก$

Result list

ก %!$"$ก ก=!

กE!?!$&A!?

ก ก กก (Cluster analysis)

10

%

ก *=:$?@ก ก กก;B

?:ก(?@ 9 %= Weka 3.5.3

C?"@?(??$ก * $กก% :ก(?

Classes to cluster evaluation

% C!@!?&AB !:ก Visualize cluster assignment

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