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3939
1.
-
- takahito kuniyoshi
2.
name : takahito kuniyoshi Android / dataminning / ... twitter : @Taka_Kuni face book : takahito kuniyoshi blog : http://allex0421.blogspot.com/
3.
1.
• • IT-IDF 2. • leader-follower 3.
4.
-
- ex:
5.
1. 2.
6.
7.
a, the, are, is, ...
8.
9.
SMART system(Salton & McGill 1983)
10.
11.
12.
➡
13.
14.
30.0
29 25.0 24 23 20.0 15.0 15 14 10.0 8 7 5.0 0
15.
TF-IDF TF : IDF : IDF
16.
TF-IDF tfi,j :
wi Di idfi : wi tf idf = tf ∗ idf ni,j tfi,j = k nk,j |n| idfi = log ni
17.
dvt = δ(+t) − δ(−t) 1 δ = N (N −1) i=1 j=1(i=j) σ(di , dj ) σ(di , dj ) Dice Jaccard
18.
19.
20.
k-means, som,
21.
k-means
k-means
22.
leader-follower
k-means leader-follower
23.
leader-follower
1. L← 2. i ← i+1 di N 3. di
24.
leader-follower
25.
26.
leader-follower SOM
27.
name : takahito
kuniyoshi twitter : @Taka_Kuni
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