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

recommendation system with document similarity

yoppi
January 27, 2018

recommendation system with document similarity

yoppi

January 27, 2018
Tweet

More Decks by yoppi

Other Decks in Programming

Transcript

  1. T

  2. ಛ௃ྔΛຊจ͔Βநग़͢Δ w λΠτϧ͕Ұ൪ಛ௃Λอ͍࣋ͯ͠Δ͸ͣ w ਓ͕ؒλά෇͚͍ͯ͠Δͱݴ͍׵͑ͯྑ͍ w ຊจશͯΛ࢖͏ͱϊΠζ͕ଟ͘ͳΔ w ॳظ࣮૷͕࠾༻ʢTJNJMBSJUZ໰୊ʣ w

    ຊจͷจ໨Λ࠾༻ w ಛʹ8FCϝσΟΞͰ͸Ϣʔβʹ୹͍࣌ؒͰಡΜͰ΋Β͏ͨΊʹจ໨ ʹཁ໿͞Εͨ΋ͷ͕ॻ͔Ε͍ͯΔ͜ͱ͕ଟ͍ w χϡʔεܥ͸ϝσΟΞ͸ݦஶ w ʮจॻཁ໿ʯͷ෼໺Ͱ΋จ໨Λಛ௃ྔܭࢉͷࡍʹॏΈΛڧͯ͘͠ܭ ࢉ͢Δํ๏͕Α͘ݟΒΕΔ
  3. ͦͬͱแΜͰϞϛϞϛ  ৴ݰṷͷਖ਼͍͠৯΂ํ͕ʜ ࢁསͷ୅දతͳ໏՛ʮ٥伷৴ݰṷʯख࡞ΓͷຯΘ͍ʹ ͩ͜Θ͓ͬͨṷͱ߳͹͍͖͠ͳคɺೱްͳࠇຶ͕ͨͬ ΀Γೖ͍ͬͯ·͢ɻಛ੡ͷࠇຶΛ͔͚ͯ৯΂Δॠؒ͸ ͳΜͱ΋ݴ͑ͳ͍޾ͤʹแ·Εɺ΄ͬͱҰଉ͖ͭͨ͘ ͳΔͰ͠ΐ͏ɻ࣮͸٥伷৴ݰṷΛϞνʔϑʹͨ͠େਓ ؾͷʮ৴ݰṷεΠʔπʯ͕͍͔ͭ͋͘Γ·͢ɻͬͦ͞ ͘঺հ͠·͠ΐ͏ʂʮ৴ݰṷιϑτʯ͸ɺ͖ͳคͱೱ

    ްͳࠇຶ͕ͨͬ΀Γ͔͔ͬͨ٥伷৴ݰṷͱιϑτΫϦʔ Ϝ͕ίϥϘϨʔγϣϯͨ͠ཉுΓͳ૊߹ͤɻόχϥΞ Πε͕ઈົʹ૊Έ߹Θͬͨ͞࿨༸ં஭ͷΫηʹͳΔຯ ͸ɺ͔ͳΓ᩵୔ͳεΠʔπʹ࢓্͕͍ͬͯ·͢ɻࢁས ͷ٥伷԰ຊࣾ޻৔ʹ͋ΔΞ΢τϨοτ΍ɺࢁསݝథਧ ࢢͷதԝߴ଎ಓ࿏΋ऍᷟಊύʔΩϯάΤϦΞͰ΋৯΂ ΒΕΔͦ͏Ͱ͢ɻʜ
  4. ͦͬͱแΜͰϞϛϞϛ  ৴ݰṷͷਖ਼͍͠৯΂ํ͕ʜ ࢁསͷ୅දతͳ໏՛ʮ٥伷৴ݰṷʯख࡞ΓͷຯΘ͍ʹ ͩ͜Θ͓ͬͨṷͱ߳͹͍͖͠ͳคɺೱްͳࠇຶ͕ͨͬ ΀Γೖ͍ͬͯ·͢ɻಛ੡ͷࠇຶΛ͔͚ͯ৯΂Δॠؒ͸ ͳΜͱ΋ݴ͑ͳ͍޾ͤʹแ·Εɺ΄ͬͱҰଉ͖ͭͨ͘ ͳΔͰ͠ΐ͏ɻ࣮͸٥伷৴ݰṷΛϞνʔϑʹͨ͠େਓ ؾͷʮ৴ݰṷεΠʔπʯ͕͍͔ͭ͋͘Γ·͢ɻͬͦ͞ ͘঺հ͠·͠ΐ͏ʂʮ৴ݰṷιϑτʯ͸ɺ͖ͳคͱೱ

    ްͳࠇຶ͕ͨͬ΀Γ͔͔ͬͨ٥伷৴ݰṷͱιϑτΫϦʔ Ϝ͕ίϥϘϨʔγϣϯͨ͠ཉுΓͳ૊߹ͤɻόχϥΞ Πε͕ઈົʹ૊Έ߹Θͬͨ͞࿨༸ં஭ͷΫηʹͳΔຯ ͸ɺ͔ͳΓ᩵୔ͳεΠʔπʹ࢓্͕͍ͬͯ·͢ɻࢁས ͷ٥伷԰ຊࣾ޻৔ʹ͋ΔΞ΢τϨοτ΍ɺࢁསݝథਧ ࢢͷதԝߴ଎ಓ࿏΋ऍᷟಊύʔΩϯάΤϦΞͰ΋৯΂ ΒΕΔͦ͏Ͱ͢ɻʜ Ϟσϧ࡞੒ʹར༻
  5. ܗଶૉղੳ w .F$BCΛ࠾༻ w ࣙॻ͸OFPMPHEΛ࠾༻ w IUUQTHJUIVCDPNOFPMPHENFDBCJQBEJDOFPMPHE w 8JLJQFEJBΛϕʔεʹ࡞ΒΕ͍ͯΔ w

    8FCϝσΟΞʹରͯ͠͸εϥϯά౳Λೝࣝͯ͘͠ΕΔͷͰ༗༻ w TUPQXPSET͸ϝσΟΞຖʹ࠷దԽ͸͍ͯ͠ͳ͍ w ͋Δఔ౓͜Ε͸ෆཁͩΖ͏ͱ͍͏ͷΛ൒ࣗಈతʹ଍͍ͯͬͯ͠ ͍Δ
  6. T

  7. ͞ΒͳΔվળҊ w Ϟσϧͷ޲্ w ೔͘Β͍Ͱ࡞Γग़ͨ͠ͳΜͪΌͬͯϞσϧͳͷͰਫ਼౓͕͍͍ͱ ͞Ε͍ͯΔ#.΍0.CBTFEΛݕূͯ͠Έ͍ͨ w ϝσΟΞຖͷಛ௃ྔநग़ͷ޲্ w ݱࡏຊจ͔Βͷಛ௃ྔநग़͸શϝσΟΞಉ༷ͳͷͰݸʑͷϝσΟ

    ΞͰΑΓద੾ͳநग़ํ๏Λݕ౼͢Δ w ଟ࿹όϯσΟοτ໰୊Λద༻ w ΫϦοΫͨ͠ɺ͍ͯ͠ͳ͍ɺͷ஋ͱͳΔͷͰ֬཰෼෍͸ϕϧ ψʔΠ෼෍ͱͳΓଟ࿹όϯσΟοτ໰୊Λద༻Ͱ͖ΔͷͰ͜Ε Λղ͘͜ͱͰϞσϧͷߋ৽͕ՄೳʹͳΔ