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第9回 評価方法と学習アルゴリズムの比較

 第9回 評価方法と学習アルゴリズムの比較

Taichi Aida

March 07, 2019
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  1. 9 7 1 / ) (B 0 2 3 

        
  2.  5 6 : 7 6 8 : 7 12

    1 . //1 22 . /
  3.  • 1 6 p • e A l 0

    PA t L • e • e A D 6 i r6
  4.     • L ℳ _ c" b

    P(%|ℳ) P 7- A Perplexity " ℳ = 1 ∏ 345 6 ∏ 78,:∈"8 <(%3,= |ℳ) 5 ∑8 ? @8 • aD M M 7- • - 7- • - - ( 7- • -) 7-
  5.  • ) 1 5. )1 50 4 5 C

    cM L 245 cM L C M L (3 9 cM L Ne A a
  6. ( ) • I • I M PMI (%& ,

    %( ) = log .(%& , %( ) . %& .(%( ) • P 1 2 2W
  7.   15 2 2 Ψ " = $logΓ(") $"

    Γ "  2 Γ " = " − 1 !