YouTube,?????????????????? - PowerPoint PPT Presentation

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YouTube,??????????????????

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Title: YouTube,??????????????????


1
???????????????????????
  • ???? ????????
  • ?? ??,?? ??,?? ??,?? ??

2
?????
  • ?????????????????????
  • YouTube,??????????????????
  • ???????????????????
  • ????????????????
  • ??????????????
  • ? ?????????????????

3
??????????
(????)
????????? ??????
12001,Taka 22001,Masumitsu
32006,Yamamoto
4
??????????
  • ????????????????2006,Yamamoto
  • ????????2????????
  • ???????????????

??????????,????,???????? ??????EBGM1997,Wiskott?
??
???????,?????????????
5
????
  • ????PC????????????????1????
  • ?????????????
  • PC?????????????????????

???????
6
?????????
????
AdaBoost
????
?????
?????????
7
AdaBoost????????
  • Haar-like??????AdaBoost???,????????????.2001,Viol
    a
  • ???????????,??????????????????
  • EBGM????,????????????,???????

8
EBGM????????????
1997,Wiskott
  • ???,?????????????Gabor??????????,??????????Jet???.
  • ????????Jet??????????Face Graph???,??????????Face
    Graph???????????Bunch Graph???.
  • Bunch Graph??????Face Graph????????,?????????,????
    ?????????.

9
SVM????????
  • EBGM????????,??????,???????????????????????.
  • EBGM?????????34??????????,??????????????,68???????
    ??????????.
  • Multiclass SVM(RBF????)???????????.

10
?????????(??)??
???? ??
Neutral (Neu) ???
Positive (Pos) ??,??,?,??
Negative (Neg) ??,??,??,??
Rejective (Rej) ???????????, ??????????, ???????,??
11
????
  • ???2?(A,B)?1??17???????????4???????.
  • ???,???????????,??????????????????????,15fps???.
  • ???,??????????????????,??????????????.

12
????????????
?????????????????
Neu Pos Neg Rej ??
???A 49865 7665 3719 1466 62715
???B 56531 2347 3105 775 62758
????????????????? ???????,???????????.
13
????1
????
AdaBoost
????
?????
?????????
14
????1-AdaBoost????????
  • ????????A,B???0???.
  • ?????????,???????.

???A Neu Pos Neg
???? 20 3 1
?????? 49865 7665 3719
????() 0.0401 0.0391 0.0269
  • ???B????,??????????????,?????????????????????.

???B Neu Pos Neg
???? 132 106 9
?????? 56531 2347 3105
????() 0.2335 4.5164 0.2899
15
????2
EBGM????????????????????
????
AdaBoost
????
?????
?????????
16
????2-EBGM???????
???A Neu Pos Neg
???? 2 0 0
?????? 49845 7662 3718
????() 0.0040 0.0000 0.0000
  • ??????????????????.
  • EBGM???????,????????????????????????.

???B Neu Pos Neg
???? 2 20 0
?????? 56399 2241 3096
????() 0.0035 0.8925 0.0000
17
????
SVM?????????????????????
????
AdaBoost
????
?????
?????????
18
????-SVM????????
  • ????????,4??3???????????,?????????????.???1???????
    ????.(??????????)
  • ???????
  • ???????????????????????????,Rejective???
  • ???????????????,?????????????,??????????

19
????-SVM???????
20
??
  • ??????87.6,??????88.0???????????.
  • ????Positive?Negative???????,??????????????,?????N
    eutral?????????????.
  • 1?????????????1??????????????,?????????????,??????
    ??.

21
????
22
?????????
EBGM?????????????,Neutral, Positive, Negative,
Rejective???4????????????????,????????
  • ?????????????????????
  • ??????????
  • ??????????
  • ?????????????????,??????????????

23
(No Transcript)
24
????-Confusion matrix ???A
???A Neu Pos Neg Rej ?? ???()
Neu 48275 443 525 622 49865 96.81
Pos 743 6907 1 14 7665 90.11
Neg 356 107 3250 6 3719 87.39
Rej 135 0 5 1326 1466 90.45
?? 49509 7457 3781 1968 62715 91.19
???() 97.51 92.62 85.96 67.38 85.87
25
????-Confusion matrix ???B
???B Neu Pos Neg Rej ?? ???()
Neu 56068 138 264 61 56531 99.18
Pos 231 2076 8 32 2347 88.45
Neg 641 24 2402 38 3105 77.36
Rej 203 0 21 551 775 71.10
?? 57143 2238 2695 682 62758 84.02
???() 98.12 92.76 89.13 80.79 90.20
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