ファッションアイテム検索における深層学習の活用/Fashion Item Retrieval using Deep Learning

Transcript

1. © 2017 VASILY,Inc.
   ϑΝογϣϯΞΠςϜݕࡧʹ͓͚Δ
   ਂ૚ֶशͷ׆༻
   !UO7"4*-: *OD
   %FFQ-FBSOJOHΦʔϧελʔζ
   

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2. © 2017 VASILY,Inc.
   ࣗݾ঺հ
   ‣ தଜ୓ຏ!UO
   ‣ σʔλαΠΤϯςΟετ
   ‣ ུྺɿ
   ΞΫηϯνϡΞ
   ݱࡏ 7"4*-:
   ‣ ۀ຿ɿ
   ػցֶशɾը૾ೝࣝ
   ΞϧΰϦζϜͷ։ൃ
   αʔϏε΁ͷద༻
   
   

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3. © 2017 VASILY,Inc.
   ໊ࣾגࣜձࣾ7"4*-: ϰΝγϦʔ
   7"4*-: *OD
   ઃཱ೥݄
   ॴࡏ஍౦ژ౎඼઒۠੢ޒ൓ాδχΞεϏϧ'
   ैۀһ໊
   ࢿຊۚԯ

   ୅දऔక໾ۚࢁ༟थ

   औక໾ࠓଜխ޾ઍ༿େี

   ओཁגओ
   άϩʔϏεϕϯνϟʔΩϟϐλϧ
   ҏ౻஧ςΫϊϩδʔϕϯνϟʔζ
   (.0ϕϯνϟʔύʔτφʔζ
   ,%%*גࣜձࣾ
   גࣜձࣾߨஊࣾ
   

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4. © 2017 VASILY,Inc.
   Ҏ্ͷϑΝογϣϯ&$αΠτ͔Βͷ΂ສ఺Λ௒͑Δ঎඼Λܝࡌ
   ݄ؒສਓҎ্͕ར༻͢Δ೔ຊ࠷େڃͷϑΝογϣϯαΠτ
   

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5. © 2017 VASILY,Inc.
   Google Play
   ϕετΞϓϦ
   J04ΞϓϦ
   ɾ"QQ4UPSF#&45
   ɾ&TTFOUJBMೝఆ
   "OESPJEΞϓϦ
   ɾ೥(PPHMF1MBZϕετΞϓϦ
   ɾ೥(PPHMF1MBZϕετΞϓϦ
   ɾ೥(PPHMF1MBZϕετΞϓϦ

   ɹɹϕετΠϊϕʔςΟϒΞϓϦେ৆
   ɾ(PPHMF͔Βτοϓσϕϩούʔೝఆ
   ೥࿈ଓϕετΞϓϦड৆͸
   ੈքͰ7"4*-:͚ͩ
   

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6. © 2017 VASILY,Inc.
   ໨࣍
   ϑΝογϣϯΞΠςϜݕࡧͱը૾ೝࣝ
   ਂ૚ֶशͷ׆༻ࣄྫ
   ࠓޙͷऔΓ૊Έ ༧ఆ
   
   
   

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7. © 2017 VASILY,Inc.
   ໨࣍
   ϑΝογϣϯΞΠςϜݕࡧͱը૾ೝࣝ
   ΞΠςϜݕࡧʹ͓͚Δը૾ೝࣝͷՁ஋
   ϑΝογϣϯ෼໺Ͱѻ͏ը૾
   ϑΝογϣϯΞΠςϜͷݕࡧͱਂ૚ֶश
   ਂ૚ֶशͷ׆༻ࣄྫ
   ࠓޙͷऔΓ૊Έ ༧ఆ
   
   
   

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8. © 2017 VASILY,Inc.
   ΞΠςϜݕࡧʹ͓͚Δը૾ೝࣝͷՁ஋
   ͜ͷͭͷΞΠςϜͷ۠ผʹد༩͢Δ৘ใ͸Կ͔
   
   

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9. © 2017 VASILY,Inc.
   ΞΠςϜݕࡧʹ͓͚Δը૾ೝࣝͷՁ஋
   ͜ͷͭͷΞΠςϜͷ۠ผʹد༩͢Δ৘ใ͸Կ͔
   ʻ.VOJDIʼϒϥ΢εʢ./5ʣ
   =
   ϒϥϯυɿϛϡχοΫʦ.6/*$)ʧ
   ΧςΰϦɿϒϥ΢ε
   ৭ɿ྘ʢάϦʔϯʣ
   ΞΠςϜઆ໌ɿ
   Ϟʔυͳண͜ͳ͠Λ׎͑ΔϘϦϡʔϜεϦʔϒͷϒϥ΢εͰ͢ɻ
   କΛંΓฦͯ͠௚ઢతͳΧοτΛڧௐ͢Δ͜ͱͰɺ०ͷσΟςΠ
   ϧ΋ͻͱຯҧ͏ݟ͑ํʹɻγϯϓϧͳ਎ࠒͱͷόϥϯε΋ྑ޷Ͱ
   ͢ɻγϫʹͳΓʹ͍͘৳ॖૉࡐΛ࢖͓ͬͯΓɺσΠϦʔʹؾܰʹ
   औΓೖΕΒΕΔͷ͕ϙΠϯτɻ͖ͬ͢Γͱ։͍ͨ7ωοΫ͕େਓ
   ͷঁੑΒ͠͞Λԋग़͠·͢ɻ
   <8ݶఆ঎඼><΢Υογϟϒϧ>ϑϨΞεϦʔϒϒϥ΢ε
   =
   ϒϥϯυɿΦΫτʔϒϧʦ0$50#3&ʧ
   ΧςΰϦɿϒϥ΢ε
   ৭ɿ྘ʢάϦʔϯʣ
   ΞΠςϜઆ໌ɿ
   τϨϯυΛҙࣝͨ͠ϑϨΞεϦʔϒτοϓεɻ͖ͬ͢Γͱൈ͚ײ
   ͷ͋ΔωοΫϥΠϯ΍όοΫγϣοτ͕ঁੑΒ͍͠งғؾͮ͘Γ
   ͷϙΠϯτɻ্඼͞΋͓͠ΌΕײ΋ซͤ࣋ͬͨҰ඼͸ɺͲΜͳੈ
   ୅ͷํ͔Β΋޷ධͰ͢ɻΦϑΟε΋σʔτ΋͓೚ͤͷσβΠϯͰ
   ͢ɻ
   ςΩετͰൺֱͨ͠৔߹
   
   

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10. © 2017 VASILY,Inc.
    ΞΠςϜݕࡧʹ͓͚Δը૾ೝࣝͷՁ஋
    ͜ͷͭͷΞΠςϜͷ۠ผʹد༩͢Δ৘ใ͸Կ͔
    ʻ.VOJDIʼϒϥ΢εʢ./5ʣ
    =
    ϒϥϯυɿϛϡχοΫʦ.6/*$)ʧ
    ΧςΰϦɿϒϥ΢ε
    ৭ɿ྘ʢάϦʔϯʣ
    ΞΠςϜઆ໌ɿ
    Ϟʔυͳண͜ͳ͠Λ׎͑ΔϘϦϡʔϜεϦʔϒͷϒϥ΢εͰ͢ɻ
    କΛંΓฦͯ͠௚ઢతͳΧοτΛڧௐ͢Δ͜ͱͰɺ०ͷσΟςΠ
    ϧ΋ͻͱຯҧ͏ݟ͑ํʹɻγϯϓϧͳ਎ࠒͱͷόϥϯε΋ྑ޷Ͱ
    ͢ɻγϫʹͳΓʹ͍͘৳ॖૉࡐΛ࢖͓ͬͯΓɺσΠϦʔʹؾܰʹ
    औΓೖΕΒΕΔͷ͕ϙΠϯτɻ͖ͬ͢Γͱ։͍ͨ7ωοΫ͕େਓ
    ͷঁੑΒ͠͞Λԋग़͠·͢ɻ
    <8ݶఆ঎඼><΢Υογϟϒϧ>ϑϨΞεϦʔϒϒϥ΢ε
    =
    ϒϥϯυɿΦΫτʔϒϧʦ0$50#3&ʧ
    ΧςΰϦɿϒϥ΢ε
    ৭ɿ྘ʢάϦʔϯʣ
    ΞΠςϜઆ໌ɿ
    τϨϯυΛҙࣝͨ͠ϑϨΞεϦʔϒτοϓεɻ͖ͬ͢Γͱൈ͚ײ
    ͷ͋ΔωοΫϥΠϯ΍όοΫγϣοτ͕ঁੑΒ͍͠งғؾͮ͘Γ
    ͷϙΠϯτɻ্඼͞΋͓͠ΌΕײ΋ซͤ࣋ͬͨҰ඼͸ɺͲΜͳੈ
    ୅ͷํ͔Β΋޷ධͰ͢ɻΦϑΟε΋σʔτ΋͓೚ͤͷσβΠϯͰ
    ͢ɻ
    ςΩετͰൺֱͨ͠৔߹
    କʹؔ͢Δઆ໌
    ϑϨΞεϦʔϒ
    WTϘϦϡʔϜεϦʔϒʁ
    ۗʹؔ͢Δઆ໌
    ൈ͚ײͷ͋ΔωοΫϥΠϯͱ͸ʁ
    
    

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11. © 2017 VASILY,Inc.
    ΞΠςϜݕࡧʹ͓͚Δը૾ೝࣝͷՁ஋
    ͜ͷͭͷΞΠςϜͷ۠ผʹد༩͢Δ৘ใ͸Կ͔
    ը૾Ͱൺֱͨ͠৔߹
    
    

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12. © 2017 VASILY,Inc.
    ΞΠςϜݕࡧʹ͓͚Δը૾ೝࣝͷՁ஋
    ͜ͷͭͷΞΠςϜͷ۠ผʹد༩͢Δ৘ใ͸Կ͔
    ը૾Ͱൺֱͨ͠৔߹
    
    

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13. © 2017 VASILY,Inc.
    ΞΠςϜݕࡧʹ͓͚Δը૾ೝࣝͷՁ஋
    ΞΠςϜͷྨࣅ౓ΛධՁ͢Δ্Ͱը૾͸͔ܽͤͳ͍৘ใͰ͋Δ
    ‣ ΞΠςϜͷڞ௨఺΍ࠩ෼͕೺ѲͰ͖Δ
    ςΩετʹൺ΂ؚͯ·ΕΔ৘ใͷྔ͕ଟ͍
    ‣ ΞΠςϜͷը૾͸ίϯςΩετΛؚΜͰ͍Δ
    ը૾ΛݟΔ͚ͩͰར༻γʔϯ΍ίʔσΟωʔτ͕૝૾Ͱ͖Δࣄ͕͋Δ
    ‣ ϑΝογϣϯ༻ޠͷࣙॻ΍Φϯτϩδʔ͕ඞཁͳ͍
    ϑΝογϣϯ͸ྲྀߦʹහײͳ෼໺ͷͨΊɺࣙॻͷϝϯςͷ޻਺Λ࡟ݮ
    Ͱ͖Δ͜ͱͷϝϦοτ͸ඇৗʹେ͖͍
    ෳࡶͳ৘ใΛநग़Մೳͳը૾ೝٕࣝज़͸ϑΝογϣϯͱ૬ੑ͕ྑ͍
    
    

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14. © 2017 VASILY,Inc.
    ϑΝογϣϯ෼໺Ͱѻ͏ը૾
    ঎඼ը૾ͱεφοϓը૾ͱ͍͏छྨͷυϝΠϯ͕ଘࡏ͠ɺ༻్͕ҟͳΔ
    ঎඼ը૾ εφοϓը૾
    ‣ ஔ͖ࡱΓ΍ϚωΩϯͷը૾͕
    ଟ͍
    ‣ ਖ਼໘͔Βݟͨ࣌ͷσβΠϯ͕
    Θ͔Γ΍͍͢
    ‣ ண༻Πϝʔδ͕༙͖ʹ͍͘
    ‣ Ϟσϧ͕ண༻ͨ͠ը૾
    ‣ ண༻࣌ͷҹ৅΍߹Θͤͷɹ
    ࢀߟʹͳΔ
    ‣ ϙʔζ΍എܠʹ΋޻෉Λɹ
    ڽΒ͍ͯ͠Δ
    ѻ͏ը૾ʹԠͯ͡ΞϓϩʔνΛม͑Δඞཁ͕͋Δ
    
    

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15. © 2017 VASILY,Inc.
    ϑΝογϣϯΞΠςϜͷݕࡧͱਂ૚ֶश
    ‣ ༷ʑͳυϝΠϯͷը૾Λಉ͡ΞʔΩςΫνϟͰѻ͑Δ
    ΞϓϦέʔγϣϯશମΛγϯϓϧʹอͯΔ
    ‣ ಛ௃நग़ΛࣗಈԽͰ͖Δ
    ϑΝογϣϯಛ༗ͷෳࡶͳίϯςΩετͷநग़͕௿ίετͰ࣮ݱͰ͖Δ
    ‣ 4JEFJOGPSNBUJPOͷར༻͕؆୯
    ΧςΰϦ΍ଐੑͷ৚݅෇͖Ϟσϧ͕؆୯ʹఆٛͰ͖Δ
    ‣ Ϟσϧͷֶशʹॆ෼ͳྔͷσʔλ͕ଘࡏ͢Δ
    ϑΝογϣϯΞΠςϜ͸೔ʑ૿͑ଓ͚αϯϓϧ਺ͷෆ଍ʹࠔΔ͜ͱ͸ͳ͍
    
    ϑΝογϣϯ෼໺ʹ͓͚Δը૾ೝࣝͱਂ૚ֶश͸਌࿨ੑ͕ߴ͍
    

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16. © 2017 VASILY,Inc.
    ໨࣍
    ϑΝογϣϯΞΠςϜݕࡧͱը૾ೝࣝ
    ਂ૚ֶशͷ׆༻ࣄྫ
    *UFN*UFNݕࡧ
    4OBQ*UFNݕࡧ
    *UFN4OBQݕࡧ
    ײ֮తͳΞΠςϜݕࡧ
    ࠓޙͷऔΓ૊Έ ༧ఆ
    
    
    

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17. © 2017 VASILY,Inc.
    ਂ૚ֶशͷ׆༻ࣄྫ
    
    ݕࡧΫΤϦͱݕࡧର৅ʹԠ࣮ͯ͡ݱํ๏͕ҟͳΔ
    *UFN*UFNݕࡧ
    ݕࡧର৅ ࣮ݱํ๏
    ঎඼ը૾
    ঎඼ը૾ଐੑ
    ঎඼ը૾
    εφοϓը૾
    ঎඼ը૾
    ঎඼ը૾
    εφοϓը૾
    ঎඼ը૾
    "VUPFODPEFS
    44%
    
    4JNJMBSJUZMFBSOJOH
    7"&("/
    4OBQ*UFNݕࡧ
    *UFN4OBQݕࡧ
    ײ֮తͳɹɹɹ
    ΞΠςϜݕࡧ
    ݕࡧΫΤϦ
    

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18. © 2017 VASILY,Inc.
    *UFN*UFNݕࡧ
    ঎඼ը૾͔Βྨࣅ͍ͯ͠Δ঎඼ը૾Λݕࡧ͢Δ
    
    ‣ ঎඼ը૾͔Βࣅ͍ͯΔ঎඼Λ୳͢
    ‣ ྨࣅ঎඼ͷൺֱ
    ϒϥϯυ΍஋ஈ͕ҟͳΔ৔߹͕͋Δ
    ֓ཁ
    ‣ "VUPFODPEFS
    ‣ ۙࣅۙ๣୳ࡧ
    ख๏
    

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19. © 2017 VASILY,Inc.
    *UFN*UFNݕࡧ
    "VUPFODPEFSͰநग़ͨ͠ಛ௃ʹରͯۙ͠๣୳ࡧΛ࣮ߦ͢Δ
    
    &ODPEFS %FDPEFS
    ಛ௃ྔ
    ݕ
    ࡧ
    ֶ
    श
    &ODPEFS
    ‣ ೖྗը૾Λ෮ݩ͢ΔΑ͏ʹɹ
    ֶश
    ‣ தؒ૚ʹ͸෮ݩʹඞཁͳ৘ใ
    ͕อଘ͞ΕΔ
    ‣ &ODPEFSΛ௨ͯ͠ը૾Λಛ
    ௃ྔʹม׵͢Δ
    ‣ ಛ௃্ۭؒͰۙ๣୳ࡧΛ࣮ߦ
    ͯ͠ྨࣅΞΠςϜΛݕࡧ͢Δ
    

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20. © 2017 VASILY,Inc.
    4OBQ*UFNݕࡧ
    Ϟσϧ͕ண༻͍ͯ͠Δ঎඼Λεφοϓը૾͔Βݕࡧ͢Δ
    
    ‣ εφοϓը૾ʹ͍ࣸͬͯΔϞσϧ͕ண͍ͯ
    ΔΞΠςϜʹࣅ͍ͯΔ঎඼Λݕࡧ͢Δ
    ‣ ͓͠ΌΕͳਓͷண͜ͳ͠ΛࢀߟʹͰ͖Δ
    ֓ཁ
    ‣ 44%
    ‣ 4JNJMBSJUZMFBSOJOH
    ‣ ۙࣅۙ๣୳ࡧ
    ख๏
    

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21. © 2017 VASILY,Inc.
    4OBQ*UFNݕࡧ
    44%ͰΞΠςϜʹ֘౰͢ΔྖҬΛݕग़ɺநग़ͨ͠ಛ௃ྔΛ࢖ͬͯྨࣅ౓Λֶश
    
    44%
    tops pants bags
    Anchor
    Positive
    Negative
    CNN
    CNN
    CNN
    ֶ
    श
    ݕ
    ग़
    ‣ 44%Λ࢖ͬͯεφοϓը૾Λ
    ΧςΰϦͰύʔε͢Δ
    ‣ ύʔεͨͦ͠ΕͧΕͷྖҬΛ
    ݕࡧΫΤϦͱΈͳ͢
    ‣ ҟͳΔυϝΠϯͷը૾Λڞ௨
    ͷωοτϫʔΫͰຒΊࠐΉ
    ‣ εφοϓը૾༝དྷͷಛ௃ྔͷ
    ·ΘΓʹͦͷ঎඼ը૾͕ɹɹ
    Ϛοϐϯά͞ΕΔΑ͏ʹֶश
    ͢Δ
    

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22. © 2017 VASILY,Inc.
    *UFN4OBQݕࡧ
    ࢀর͍ͯ͠Δ঎඼Λண༻͍ͯ͠ΔϞσϧ͕ొ৔͢Δεφοϓը૾Λݕࡧ͢Δ
    
    ‣ ঎඼ը૾ʹࣅͨΞΠςϜΛண༻͍ͯ͠Δɹɹ
    εφοϓը૾Λݕࡧ͢Δ
    ‣ ண༻Πϝʔδ΍ίʔσΟωʔτ͕ఏҊͰ͖Δ
    ֓ཁ
    ‣ 44%
    ‣ 4JNJMBSJUZMFBSOJOH
    ‣ ۙࣅۙ๣୳ࡧ
    ख๏
    

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23. © 2017 VASILY,Inc.
    *UFN4OBQݕࡧ
    4OBQ*UFNݕࡧͷٯҾ͖Λ࣮૷͢Δ
    
    ݕग़
    ݕࡧ
    εφοϓը૾
    ΞΠςϜྖҬ
    ݕग़
    Ϟδϡʔϧ
    ݕࡧ
    Ϟδϡʔϧ
    

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24. © 2017 VASILY,Inc.
    ײ֮తͳΞΠςϜݕࡧ
    ঎඼ը૾ʹଐੑΛ෇Ճͯ͠໨తͷΞΠςϜΛݕࡧ͢Δ
    
    ը૾ ଐੑʢϕΫτϧʣ
    Red
    Flare
    Maxi
    ︙
    ‣ ঎඼ը૾ʹଐੑΛՃࢉݮࢉ͠ͳ͕Β୳͢
    ‣ ଐੑͷԋࢉ͸ΠϯλϥΫςΟϒʹߦ͑Δ
    ‣ ݕࡧΫΤϦͷݴޠԽ͕೉͍͠ͱ͖ʹ༗ޮ
    ֓ཁ
    ‣ 7"&
    ‣ ("/
    ‣ ۙࣅۙ๣୳ࡧ
    ख๏
    

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25. © 2017 VASILY,Inc.
    ײ֮తͳΞΠςϜݕࡧ
    
    

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26. © 2017 VASILY,Inc.
    ײ֮తͳΞΠςϜݕࡧ
    7"&ͱ("/Λ૊Έ߹ΘͤͨϞσϧΛར༻ͯ͠ಛ௃ۭؒΛுΔ
    
    Encoder Decoder
    Discriminator
    ը૾
    ଐੑ
    ը૾
    ը૾ɹɹɹ
    ಛ௃ྔ
    ༧ଌʢຊ෺/ِ෺ʣ
    ༧ଌʢଐੑʣ
    ը૾ʢ෮ݩʣ
    ‣ ଐੑʹΑΓ৚݅෇͚ͨ7"&Ͱಛ௃Λநग़͢Δ
    ‣ %JTDSJNJOBUPS͸ೖྗը૾ͷਅِ༧ଌʹՃ͑ͯଐੑ΋༧ଌ͢Δ
    ‣ ͋Δଐੑʹ஫໨ͨ࣌͠ɺଐੑͷڧ͞ʹԠͯ͡نଇਖ਼͘͠
    αϯϓϧ͕഑ஔ͞Ε͍ͯΔঢ়ଶΛ໨ࢦ͢
    ‣ ଐੑͷڧ͞ΛมԽͤͯ͞ݕࡧΛ࣮ݱ͢Δ
    

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27. © 2017 VASILY,Inc.
    ײ֮తͳΞΠςϜݕࡧ
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