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

論文紹介:Probabilistic Matrix Factorization

KenjiH
April 28, 2017

論文紹介:Probabilistic Matrix Factorization

機械学習勉強会(2017/04/29)での発表資料

KenjiH

April 28, 2017
Tweet

More Decks by KenjiH

Other Decks in Technology

Transcript

  1. 1SPCBCJMJTUJD.BUSJY'BDUPSJ[BUJPO 1.' Ψ΢ε෼෍ ີ౓ؔ਺ ର਺ີ౓ؔ਺ f(x) = 1 p 2⇡

    2 exp ✓ (x µ) 2 2 2 ◆ ln f ( x ) = 1 2 ln 2 ⇡ 2 ( µ x )2 2 2 ର਺ࣄޙ֬཰
  2. &YQFSJNFOUBM3FTVMUT /FUqJY%BUB ܇࿅σʔλ    ݅ͷϨϏϡʔ ςετσʔλ  

     ݅ͷϢʔβөըͷ૊Έ߹Θͤ  ܇࿅σʔλʹଘࡏ͢ΔϢʔβͷ࠷ۙͷϨϏϡʔ͔ΒαϯϓϦϯά τΠσʔλ  ຊ࿦จͷݕূͷͨΊɺҎԼͷςετσʔλू߹Λ࡞੒    ݅ͷϨϏϡʔ͔ΒͳΔ܇࿅σʔλ  ܇࿅σʔλͷҎ্ͷϢʔβ͸ະຬͷϨϏϡʔ͔͍ͯ͠͠ͳ͍
  3. 4VNNBSZBOE%JTDVTTJPO  1SPCBCJMJTUJD.BUSJY'BDUPSJ[BUJPOΛఏҊ  "EPQUJWF1SJPS1.'  $POTUSBJOFE1.'  ڊେͳөըධՁσʔληοτΛ༻͍ͯɺϞσϧͷ༗༻ੑΛ࣮ূ ·ͱΊ

    ՝୊  ύϥϝʔλͷ఺ਪఆΛܭࢉ͕ͨ͠ɺύϥϝʔλͷ෼෍͸ܭࢉ͍ͯ͠ͳ͍  ׬શͳϕΠζΞϓϩʔνΛऔΓ͍ͨ৔߹͸ɺ.$.$͢Δ  ܭࢉίετ͸େ͖͍͕ɺੑೳ޲্͕ݟࠐ·ΕΔ