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k-means

(Source: http://thardes.de/wp-content/uploads/2013/06/k-means-result.jpg)
(Source: http://i.stack.imgur.com/Z6mSU.jpg)
Кластер-анализ: итерация 1

registered
сluster size checkins
feed size
(days ago)

last
public
checkin
checkins
(days ago)

venues

comments

friends

5

594

104

31

96

0,6

238

0

1

4099

5,3

64

0,4

62

1,4

1,6

0,1

0

49

65

402

55

264

63

12

30

19

436

25

341

59

300

16

5,9

3

2,4

125

37

402

78

309

32

9

11

6,8

2602

11

270

24

257

4

2,3

0,1

1
Кластер-анализ: итерация 1

registered
сluster size checkins
feed size
(days ago)

last
public
checkin
checkins
(days ago)

??? 96

5

594 104

4099

5,3

64

0,4

49

65

402

436

25

125
2602

31

venues

comments

friends

0,6

238

0

1

62

1,4

1,6

0,1

0

55

264

63

12

30

19

341

59

300

16

5,9

3

2,4

37

402

78

309

32

9

11

6,8

11

270

24

257

4

2,3

0,1

1
Кластер-анализ: итерация 2
last
cluster checkin
size (days ago) checkins

public checkins/
checkins
day

friends

comments activities venues

days of
activity

600

209,2

51,8

20,7

1,0

1,2

1,9

17,9

12,9

53,0

10

227,4

220,5

160,6

0,7

32,5

134,9

26,1

38,7

310,6

126

316,5

41,6

38,0

0,4

10,0

12,0

12,2

9,1

95,4

5258

69,5

4,5

1,7

1,7

0,0

0,1

2,8

1,2

2,7

2644

285,2

6,2

2,8

0,6

1,2

0,3

3,2

1,4

11,2
Кластер-анализ: итерация 2
last
cluster checkin
size (days ago) checkins

public checkins/
checkins
day

friends

comments activities venues

days of
activity

600

209,2

51,8

20,7

1,0

1,2

1,9

17,9

12,9

53,0

10

227,4

220,5

160,6

0,7

32,5

134,9

26,1

38,7

310,6

126

316,5

41,6

38,0

0,4

10,0

12,0

12,2

9,1

95,4

5258

69,5

4,5

1,7

1,7

0,0

0,1

2,8

1,2

2,7

2644

285,2

6,2

2,8

0,6

1,2

0,3

3,2

1,4

11,2
Линейная регрессия

(Source: http://circ.ahajournals.org/content/122/7/698/F3.large.jpg)
Логистическая регрессия

1 – пользователь ушел из приложения
0 – пользователь остался в приложении

(Source: http://www.dennissedov.com/wp-content/uploads/2014/01/standard-logistic-sigmoid-function1.png)
Признак

checkins
public checkins

venues
comments

feed size
registered (days ago)

gender

Является значимым?
Статистическая значимость

Признак

checkins
public checkins

venues
comments

feed size
registered (days ago)

gender

Является значимым?

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