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Factorization Machines

KenjiH
March 18, 2016

Factorization Machines

KenjiH

March 18, 2016
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  1. .PUJWBUJPO w 84%.Ͱz'BDUPSJ[BUJPO.BDIJOFTzͱ͍͏୯ޠΛΑ͘ฉ͍ͨ w 'BDUPSJ[BUJPO.BDIJOFTΛߴ଎Խ͠·ͨ͠ w 'BDUPSJ[BUJPO.BDIJOFTΛ#BTFMJOFͱ͠·ͨ͠ w ʜ w

    ༗໊ͳख๏Β͍͠ͷͰ࿦จΛಡΜͰΈΔ͜ͱʹͨ͠ ̶—Recruit  Communications  Co.,  Ltd.̶— 3FGFSFODFT<>ΑΓҾ༻
  2. *OUSPEVDUJPO w 47.͸ڠௐϑΟϧλϦϯάͷΑ͏ͳ໰୊Ͱ͸͏·͘ػೳ͠ͳ͍ w εύʔεͳσʔλʹରͯ͠৴པͰ͖Δࣝผ௒ฏ໘ΛֶशͰ͖ͳ͍ͨΊ w ҰํɺڠௐϑΟϧλϦϯάʹར༻͞ΕΔҼࢠ෼ղ๏͸ w ಛఆͷλεΫΛߦ͏ͨΊʹఏҊ͞Εͨઐ༻ϞσϧͰ͋Δ w

    Ұൠతͳσʔλʹద༻Ͱ͖ͳ͍ ̶—Recruit  Communications  Co.,  Ltd.̶— w 'BDUPSJ[BUJPO.BDIJOF '. ΛఏҊ w εύʔεͳσʔλʹରͯ͠΋৴པͰ͖ΔύϥϝʔλΛਪఆՄ w 47.ͷΑ͏ͳҰൠతͳࣝผث
  3. 1SFEJDUJPO6OEFS4QBSTJUZ ̶—Recruit  Communications  Co.,  Ltd.̶— ͜ͷ࿦จͰ͸ඇৗʹεύʔεͳσʔλΛѻ͏໰୊Λߟ͑Δ ɿYͷඇྵཁૉͷ਺ m ( x

    ) m ( x ) ¯ mD ɿ ͷฏۉ ඇৗʹεύʔεͳσʔλ͸ݱ࣮ੈքͷ໰୊Ͱ͸සग़ w ߪങτϥϯβΫγϣϯσʔλ w ςΩετॲཧͷ#BHPG8PSETσʔλ 3FGFSFODFT<>ΑΓҾ༻ 3FGFSFODFT<>ΑΓҾ༻
  4. &YBNQMFPG4QBSTF%BUB ̶—Recruit  Communications  Co.,  Ltd.̶— w ͲͷϢʔβͷSBUJOH  "MJDFɺ#PCɺ$IBSMJFɺʜ 

    w Ͳͷөըʹର͢ΔSBUJOH ʢ5JUBOJDɺ/PUUJOH)JMM 4UBS8BST 4UBSU5SFLɺʜʣ w ͦͷϢʔβ͸ଞʹͲͷөըʹϨϏϡʔΛ෇͚ͨʁ w ͍ͭϨϏϡʔͨ͠ʁʢ͔Βͷ݄਺ʣ w ౰֘ϨϏϡʔͷ௚લʹϨϏϡʔͨ͠өը͸ͲΕʁ 'JH&YBNQMFGPSTQBSTFSFBMWBMVFEGFBUVSFWFDUPSYUIBUBSFDSFBUFEGSPNUIFUSBOTBDUJPOTPGFYBNQMF 3FGFSFODFT<>ΑΓҾ༻
  5. 'BDUPSJ[BUJPO.BDIJOF.PEFM ̶—Recruit  Communications  Co.,  Ltd.̶— w ೋ࣍ͷ૬ޓ࡞༻܎਺Λ಺ੵ෼ղͯ͠ද͍ͯ͠Δ͚Ͳɺදݱྗ͸े෼͔ʁ w ೚ҙͷਖ਼ఆ஋ߦྻɹʹ͍ͭͯɺे෼େ͖ͳΛબ΂͹ͱͳΔɹ ɹ͕ଘࡏ͢Δ

    w ࣮༻తʹ͸εύʔεͳσʔλʹରͯ͠͸ɺൺֱతখ͞ͳΛ༻͍Δ w ෳࡶͳ૬ޓ࡞༻ΛֶशͰ͖ͳ͍ͨΊ w Ϟσϧͷදݱྗ͸Լ͕Δ͕൚Խೳྗ޲্ʹͭͳ͕Δ w ม਺ؒͷ૬ޓ࡞༻Λ಺ੵ෼ղͨ͠ύϥϝʔλͰදݱ͢ΔͱԿ͕خ͍͔͠ʁ w ͋Δ૬ޓ࡞༻Λද͢σʔλ͕ଞͷؔ࿈͢Δ૬ޓ࡞༻ͷਪఆʹ΋د༩ w "MJDF4UBS5SFLͷ૬ޓ࡞༻Λ௚઀ਪఆ͢Δͱɹɹɹɹɹɹͱͳͬͯ͠·͏ w '.ͷ৔߹͸ɺɹɹɹɹΛ༻͍ͯ"MJDF4UBS5SFLͷ૬ޓ࡞༻ΛਪఆՄೳ w 4UBS5SFLϕΫτϧ͸4UBS8BSTϕΫτϧͱಉ༷ʢ#PCͷධՁΑΓʣ w "MJDFϕΫτϧͱ4UBS5SFLϕΫτϧͷ಺ੵ͸"MJDFϕΫτϧͱ4UBS8BST ϕΫτϧͷ಺ੵͱಉ༷ʹͳΔ͸ͣ
  6. 'BDUPSJ[BUJPO.BDIJOFTBT1SFEJDUPST ̶—Recruit  Communications  Co.,  Ltd.̶— '.͸༷ʑͳ༧ଌ໰୊ʹԠ༻Մೳ ௨ৗɺաֶशΛ๷͙ͨΊ໨తؔ਺ʹ-ਖ਼نԽ߲͕෇༩͞ΕΔ ໰୊ ༧ଌํ๏ ໨తؔ਺

    ճؼ໰୊ TRVBSFEFSSPS ೋ஋ࣝผ໰୊ ͷූ߸ IJOHFMPTTMPHJUMPTT ϥϯΩϯά໰୊ ͷείΞॱ QBJSXJTFDMBTTJpDBUJPOMPTT
  7. '.TWT47.T ̶—Recruit  Communications  Co.,  Ltd.̶— ઢܗ47.ɿ ଟ߲ࣜΧʔωϧ47. E ɿ XBZ'.ͱಉ͡

    XBZ'.ͱಉ༷ʹೋ࣍·Ͱͷ૬ޓ࡞༻Λߟྀͨ͠Ϟσϧ 47.ͷ৔߹͸ೋ࣍ͷ૬ޓ࡞༻Λද͢ύϥϝʔλ͸͢΂ͯಠཱ '.ͷ৔߹͸ೋ࣍ͷ૬ޓ࡞༻Λද͢ύϥϝʔλ͸಺ੵɹɹɹͰܾ·Δ
  8. '.TWT47.T ڠௐϑΟϧλϦϯάʢ'JHͷ࠷ॳͷάϧʔϓͷΈΛ࢖ͬͨ৔߹ʣΛྫʹ47. ͕εύʔεͳσʔλΛۤखͱ͢Δཧ༝Λߟ࡯ ઢܗ47.ɿ ϢʔβVɺΞΠςϜJʹର͢ΔϞσϧ͸ҎԼͷΑ͏ʹͳΔ ۃ୺ʹγϯϓϧͳϞσϧͳͷͰσʔλ͕εύʔεͳ৔߹΋ύϥ ϝʔλͷ༧ଌ͸Ͱ͖Δ͕ɺ༧ଌਫ਼౓͸௿͍ ϢʔβVɺΞΠςϜJʹର͢ΔϞσϧ͸ҎԼͷΑ͏ʹͳΔ ଟ߲ࣜΧʔωϧ47. E

    ɿ ɹɹͱɹɹɹ͸ಉ༷ͷදݱɻɹͱɹɹ΋ಉ༷ɻ ݁ہઢܗ47.ʹϢʔβΞΠςϜͷ૬ޓ࡞༻ΛՃ͑ͨϞσϧʹͳΔ ̶—Recruit  Communications  Co.,  Ltd.̶— ϢʔβV͕ΞΠςϜJΛങͬͨͱ͍͏܇࿅σʔλ͕ͳ͍৔߹ɺ ͸ʹͳͬͯ͠·͏ʢ΄ͱΜͲͷ৔߹ɹɹɹ͸ʹͳͬͯ͠·͏ʣ
  9. '.TWT0UIFS'BDUPSJ[BUJPO.PEFMT ̶—Recruit  Communications  Co.,  Ltd.̶— ద੾ͳಛ௃ϕΫτϧΛ࡞Δ͜ͱͰɺ'.͸ଟ͘ͷҼࢠ෼ղ๏ʢڠௐϑΟϧλϦϯάʹ༻ ͍ΒΕΔઐ༻ϞσϧʣΛ໛฿͢Δ͜ͱ͕Ͱ͖Δ w .BUSJYBOE5FOTPS'BDUPSJ[BUJPO w

    47%  w 1*5'GPS5BH3FDPNNFOEBUJPO w 'BDUPSJ[FE1FSTPOBMJ[FE.BSLPW$IBJOT '1.$ w 47% ͸ڠௐϑΟϧλϦϯάͰ༻͍ΒΕΔҼࢠ෼ղ๏ͷҰͭ w Ϣʔβͷ͞·͟·ͳཤྺ৘ใΛߟྀͨ͠Ϟσϧ ྫʣҎԼͷಛ௃ྔΛ༻͍Δͱ'.͸47% Λ໛฿͢Δ͜ͱ͕Ͱ͖Δ ಉ༷ʹɺಛ௃ྔΛ͏·͘࡞Δ͜ͱͰ'.͸ଞͷҼࢠ෼ղ๏΋໛฿Ͱ͖Δ ϢʔβV͕SBUJOHͨ͢͠΂ͯͷ঎඼
  10. $PODMVTJPO ̶—Recruit  Communications  Co.,  Ltd.̶— w '.͸47.ͷ൚ԽೳྗͱҼࢠ෼ղ๏ͷར఺Λ߹Θͤ࣋ͭϞσϧ w '.͸εύʔεͳσʔλʹରͯ͠΋ύϥϝʔλਪఆ͕Մೳ w

    Ϟσϧͷࣜ͸ઢܗ࣌ؒͰධՁՄೳ w ओ໰୊Ͱ௚઀࠷దԽՄೳ w '.ͷදݱྗ͸ଟ߲ࣜΧʔωϧ47.ʹඖఢ w Ҽࢠ෼ղ๏ͱ͸ҟͳΓɺ'.͸Ұൠతͳࣝผثͱͯ͠࢖͑Δ w ద੾ͳಛ௃ྔΛ࡞Δ͜ͱͰɺ'.͸ҎԼͷΑ͏ͳ࠷৽ͷઐ༻ϞσϧΛ໛฿Ͱ͖Δ w .' w 47%  w 1*5' w '1.$
  11. '.-JCSBSJFT ̶—Recruit  Communications  Co.,  Ltd.̶— ओཁͳ'BDUPSJ[BUJPO.BDIJOFTͷϥΠϒϥϦҰཡ ϥΠϒϥϦ໊ 4UBS ݴޠ ಛهࣄ߲

    QZ'.  1ZUIPO αϯϓϧʢUPZFYBNQMFɺNPWJFMFOTʣ͕๛෋ GBTU'.  1ZUIPO TDJLJUMFBSO"1* ύϑΥʔϚϯεʹؔΘΔ෦෼͸$Ͱ࣮૷ MJCGN  $ 3FOEMFΒʹΑΔެ࣮ࣜ૷ MJC⒎N  $ ,BHHMFͷ༏উνʔϜʹΑΔ࣮૷
  12. 3FGFSFODFT ̶—Recruit  Communications  Co.,  Ltd.̶— <>4UF⒎FO3FOEMF l'BDUPSJ[BUJPO.BDIJOFTz IUUQXXXDTJFOUVFEVUXdCQBQFS3FOEMF'.QEG <>84%.4BO'SBODJTDP 64"'FC

     IUUQXXXXTENDPOGFSFODFPSH <>%JTQMBZ"EWFSUJTJOH$IBMMFOHF ,BHHMF  IUUQTXXXLBHHMFDPNDDSJUFPEJTQMBZBEDIBMMFOHF <>$MJDL5ISPVHI3BUF1SFEJDUJPO ,BHHMF  IUUQTXXXLBHHMFDPNDBWB[VDUSQSFEJDUJPO <>/FUqJY IUUQTXXXOFUqJYDPNKQ <>"NB[PO IUUQXXXBNB[PODPN