?????? (ICA:Independent Component Analysis ) - PowerPoint PPT Presentation

1 / 16
About This Presentation
Title:

?????? (ICA:Independent Component Analysis )

Description:

(ICA Independent Component Analysis ) (ICA) ... – PowerPoint PPT presentation

Number of Views:145
Avg rating:3.0/5.0
Slides: 17
Provided by: owner
Category:

less

Transcript and Presenter's Notes

Title: ?????? (ICA:Independent Component Analysis )


1
??????(ICAIndependent Component Analysis )
2
??????(ICA)??
  • ?????????????????????????? ?????????????????
  • x????? A???? s???
  • x As

3
ICA??????
  1. ??????????????????????
  2. ???????????????????

4
??????
  • ???????????????????????????????????????
  • ???0???
  • ??????????????????????????????????????????????????
    ?????????
  • ??????????????????

5
ICA???
  • Infomax
  • FastICA
  • JADE

6
FastICA???
  • ???
  • ???
  • (???)
  • ???
  • ?????????

7
???
  • ????0????????????????

?
8
???
  • ????????????????????????????????????????
  • (??????-???)/????

9
???
  • ???????????????????
  • ???????????,???????????1(??????????I????)
  • ???????????(PCA)???

10
?????
  • ??????????
  • y Ax
  • U??????? D???????? VT???????
  • (????) (???) (????)
  • A UDVT
  • ???????1???????
  • UUT VVT I

11
???????
  • ?????????????????????????
  • ????????????????????????

12
FastICA???
  • ???
  • ???
  • (???)
  • ???
  • ?????????

13
?????
  • ?????? ?????
  • ???????????????????????

14
???????
  • ??????????????
  • J(y) H(ygauss) ? H(y)

15
???????????
  • ???????????w
  • ??????z
  • ?w ? ?Ezg(wTz)

16
ICA????
  • ???????(???)???????????
  • ?????????????????
Write a Comment
User Comments (0)
About PowerShow.com