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ؔ੢LBHHMFSձJO0TBLB5ɹ Ϩίϝϯυίϯϖೖ໳ H&M Personalized Fashion Recommendations OTTO – Multi-Objective Recommender System

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͸͡Ίʹ

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ࣗݾ঺հ ɾςʔϒϧίϯϖ͹͔Γग़ͯΔɻࠓ೥͸෯Λ֦͍͛ͨʢͱຖ೥ݴͬͯΔʣ ɾؔ੢LBHHMFSձɹ੢ভࢧ෦

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୊ࡐ

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w ϑΝετϑΝογϣϯϒϥϯυ).ͷ঎඼Ϩίϝϯυ͕୊ࡐ w ސ٬ଐੑ৘ใɺ঎඼ଐੑ৘ใɺաڈͷߪೖཤྺ͕σʔλͱͯ͠༩͑ΒΕΔ w σʔλ͕༩͑ΒΕ͍ͯͳ͍ະདྷ̍िؒʹ͓͍ͯશͯͷސ٬ʹରͯͦ͠ͷਓ ͕ങ͍ͦ͏ͳ̍̎఺ͷ঎඼ϦετΛఏࣔ͢Δ w ධՁࢦඪ͸N"1! NFBOBWFSBHFQSFDJTJPO USBJO ೥ؒ UFTU XFFL 5SBJO 5FTUσʔλ ධՁࢦඪ ސ٬ଐੑ ೥ྸɺձһ৘ใͳͲ ঎඼ଐੑ ΧςΰϦɺ৭ɺઆ໌จ ը૾ɹͳͲ ߪೖཤྺ σʔλ

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w υΠπͷΦϯϥΠϯγϣοϓ࠷େख0550ͷϨίϝϯυλεΫ w ֤TFTTJPO͝ͱ֤UZQF DMJDL DBSUT PSEFST ͷཤྺ͕σʔλͱͯ͠༩͑ΒΕΔ w UFTU͸࠷ऴिͷTFTTJPO͕ର৅ɻTFTTJPOͷ్த·Ͱͷཤྺ͕༩͑ΒΕ͍ͯΔঢ়ଶͰͦͷޙͷDMJDL DBSUT PSEFSTΛ̎̌ݸͷ঎඼ϦετͷܗͰ༧ଌ͢Δ w ධՁࢦඪ͸UZQF͝ͱͷSFDBMM!ͷՃॏฏۉ 5SBJO 5FTUσʔλ ධՁࢦඪ

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Ϩίϝϯυίϯϖ͸ϕʔεϥΠϯ࡞Δͷ͕೉͍͠ʁ w σʔλΛ༩͑ΒΕͨ࣌఺Ͱɺػցֶशʹ࣋ͪࠐΊΔܗʹͳ͍ͬͯͳ͍ w ૉ௚ʹػցֶशͷܗʹ͍࣋ͬͯ͜͏ͱ͢Δͱɺଟ਺ͷ঎඼ºଟ਺ͷϢʔβͷ૊ Έ߹Θ͕ͤର৅ͱͳΔ͕ɺ౸ఈࡹ͖͖Εͳ͍ͨΊ޻෉͕ඞཁ

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ఆੴ $BOEJEBUF3FSBOL.PEFM ΊͬͪΌ ଟ͍ ਺ ఔ౓ 5PQ/ ਪનީิ શ঎඼ ਪનީิ ༧ଌ TU4UBHF $BOEJEBUFHFOFSBUJPO ൺֱతφΠʔϒͳख๏Ͱશ ঎඼͔ΒਪનީิΛબͼग़ ͢ OE4UBHF 3F3BOL ػցֶशϞσϧʹΑΓɺ நग़͞Εͨਪનީิͷϥ ϯΫ෇͚Λߦ͏

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TU4UBHFͷΞϓϩʔν

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φΠʔϒͳΞϓϩʔν w Ϣʔβ͕աڈߪೖͨ͠঎඼ʢग़ݱ೔͕͍࣌ۙॱɺස౓͕ଟ͍ॱͳͲͰTPSUʣ w ਓؾ঎඼ w Ϣʔβଐੑผͷਓؾ঎඼ʢಉ೥୅ͰΑ͘ചΕ͍ͯΔͳͲʣ w ಛఆظؒͰΑ͘ചΕͨ঎඼ʢ༧ଌର৅લिͷച্਺ͳͲʣ

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$P7JTJUBUJPONBUSJY w ঎඼ؒͷڞىੑʹண໨ɻҰॹʹొ৔͢Δ਺ΛΧ΢ϯτ w ͢Ͱʹొ৔͍ͯ͠Δ঎඼ͷ࠷සϖΞΛਪનީิͱͯ͠நग़͢Δ w 0UUPίϯϖͰΞϓϩʔνͷϕʔεͱͯ͠޿͘׆༻͞Εͨ IUUQTXXXLBHHMFDPNDPEFWTMBZLPWTLZDPWJTJUBUJPONBUSJY " # $ % " " " # * + " " & ' # ( ) # % - ) / 0 % ঎඼Y ঎඼Z $OU " # " % " ) " $ ɾ ɾ ɾ

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ྨࣅ౓Λ༻͍ͨΞϓϩʔν w ঎඼ͷܥྻ͔ΒJUFNWFDΛߦ͍ɺ͜ͷຒΊࠐΈϕΫτϧͷྨࣅ౓Λܭࢉɻྨ ࣅ౓ͷߴ͍঎඼ϖΞΛਪનީิͱ͢Δ w ߪೖ܏޲͔ΒϢʔβؒͷྨࣅ౓Λܭࢉɻྨࣅ౓͕ߴ͍Ϣʔβͷߪೖ঎඼Λਪ નީิͱ͢Δ w ߪೖ܏޲͔ΒϢʔβΛΫϥελϦϯάɻΫϥελ͝ͱͷਓؾ঎඼Λਪનީิͱ ͢Δ

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ͦͷଞศརύοέʔδ w 3FD#PMFଟ਺ͷϨίϝϯυϞσϧʢ࣌఺Ͱݸʂʣ͕ڞ௨ͷ ϑϨʔϜϫʔΫͰ࣮૷Ͱ͖Δ IUUQTSFDCPMFJPJOEFYIUNM

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TUTUBHFॴײ w TUTUBHFͰͲΕ͚ͩଟ༷ͳΞϓϩʔνΛॏͶΒΕ͔͕ͨউഊʹେ͖͘Өڹ w γϯϓϧͳΞϓϩʔν͕͔ͳΓޮ͘ w ·ͣ͸γϯϓϧΞϓϩʔνͷѥछʢಛఆ৚݅ʹߜΔͳͲʣΛ৭ʑࢼ͢ͱΑ͍ w ཧ࿦ݶք஋ͱਪન਺ΛᛀΈͳ͕ΒΞϓϩʔνͷݕ౼Λߦ͏

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OE4UBHFͷΞϓϩʔν

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ಛ௃ྔ w ঎඼ಛ௃ྔ w Ϣʔβʔಛ௃ྔ w ঎඼ºϢʔβʔಛ௃ྔ ˞TU4UBHFͰͷॱҐ෇͚ʹ࢖ͬͨ਺ࣈΛಛ௃ྔͱͯ͠΋࢖͏ͱྑ͍

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Ϟσϧ w ຆͲ(#%5͕༻͍ΒΕ͍ͯΔ w ̎஋෼ྨͱͯ͠ղ͘ɺ3BOLFSϞσϧͰղ͘ɺύλʔϯ͋Γ w 3BOLFSϞσϧ w -(#.3BOLFS MBNCEBSBOL w $BUCPPTU3BOLFS :FUJ3BOL

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OE4UBHFॴײ w TU4UBHFͱൺֱ͢Δͱɺॏཁ౓͕एׯམͪΔ w ຖճɺSBOLFSࢼ͚͢Ͳɺ݁ہ෼ྨͰྑ͍͔ɺͬͯͳͬͯΔʢ$BUCPPTU͸ࢼ͠ ͯͳ͍ͷͰ࣍ճ͸࢖ͬͯΈ͍ͨʣ

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ͦͷଞ

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όϦσʔγϣϯ USBJOσʔλ TU4UBHFநग़OE4UBHFಛ௃ྔɹ OE4UBHF ֶश OE4UBHF ධՁ TU4UBHFநग़OE4UBHFಛ௃ྔɹ w ࣌ܥྻͰ෼ׂɻ௨ৗͷֶशɾධՁظؒͱผʹީิநग़ͱಛ௃ྔ࡞੒༻ͷظؒ Λ੾Δඞཁ͕͋Δ w ީิநग़΍ಛ௃ྔͷϦʔΫʹؾΛ෇͚Δ

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Ξϯαϯϒϧ IUUQTXXXLBHHMFDPNDPEFUJUFSJD[INFOTFNCMJOHIPXUP w ֤༧ଌͷSBOLʹॏΈΛֻ͚ͯ WPUF͢ΔܗͰΞϯαϯϒϧΛߦ ͏ w ֤ϞσϧͰ࠷ऴ༧ଌ਺Ҏ্ͷީ ิΛग़ྗͯ͠Ξϯαϯϒϧͨ͠ ΓɺॱংʹΑΔείΞมಈΛ཈ ͑ΔͨΊʹॏΈΛௐ੔͢Δɺͳ Ͳͷ޻෉͍ͯ͠Δέʔε΋

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σʔλྔɾॲཧ࣌ؒͷέΞ w ߴ3".؀ڥΛ४උʢLBHHMF؀ڥͰۚϝμϧऔΔਓ΋͍ΔͷͰ؁͑ʁʣ w OETUBHFͷσʔλΛ࡞੒͢ΔࡍʹOFHBUJWFTBNQMJOH w QPMBSTͱDVEGΛ׆༻͢Δ w ࣄલܭࢉ΍தؒσʔλͷDBDIFԽͳͲͰ࣮ݧຖͷܭࢉྔΛݮΒ͢ w ධՁΛҰ෦ͷσʔλͰߦ͏

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w Ϩίϝϯυίϯϖ͸ָ͍͠ʂ w ϕʔεϥΠϯ࡞Δͷ͕ൺֱతେม ࢀՃऀଟ͍ͷͰϝμϧ͕औΓ΍ ͍͢ w ͥͻࢀՃ͠Α͏ ͓ΘΓʹ