Upgrade to Pro — share decks privately, control downloads, hide ads and more …

第8回 Dirichlet分布のパラメータ推定

Avatar for Taichi Aida Taichi Aida
February 27, 2019

 第8回 Dirichlet分布のパラメータ推定

Avatar for Taichi Aida

Taichi Aida

February 27, 2019
Tweet

More Decks by Taichi Aida

Other Decks in Education

Transcript

  1. 9 2 8B D 3 0( ) / 1 

        
  2.  h o~ _a c eW l ypf iv u

    _a c eW l ypf iv j / H : C dbR s , MMM C 8H 8 A H : C 08 8 2 68CC8: /8L 2 D - H M 2:.8CC D 5 1/-, 6 N 4H H 28 H , H : C M8CC8: H w t iv , MMM : 98 H8 8: A P M8 8 1 : 3- 8 k r mk j zng , MMM 8 : 8: A 8 8 2 A :
  3.   ! " #$ % • &$,( " )

    &$,( ~Multi(123,456 ) • 8$,( " ) 8$,( ~Multi(9$ ) • 16 8$,( = ; 16 ~Dir(>) • 9$ " 9$ ~Dir(?) • ? > 2 5
  4.   ! " #$ % • &$,( " )

    &$,( ~Multi(123,456 ) • 8$,( " ) 8$,( ~Multi(9$ ) • 16 8$,( = ; 16 ~Dir(>) • 9$ " 9$ ~Dir(?) • ? > 2 6
  5.   • !(#, %, &|(, ), *) 2 •

    2 • 2 • 1 • 1 •
  6.  • K !(#, %, &|(, ), *) ), *

    1 ,(#, %, &) L 2 2 -.[,(#, %, &)||! #, %, & (, ), * ] → 234 2 K 5 . log !((|), *)
  7.  L 5 !, # 7 54 $[&((, ), *|!,

    #)] !, # . 4 .$[&((, ), *|!, #)] .! = 0, .$[&((, ), *|!, #)] .# = 0 • .1 • • D A D
  8.    • ! " = 0 8 "

    = %(") 5] . "( 8 ")*+ = % ") , - = 0,1,2, …2 81 • . [ . 3
  9.   • ] ! " = 0 D "%D

    A ! " "& 1 ]y = ! "& ]D 3 ] D"&() 5A L 9 • 2 A . 9A [2 A