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׆༻ !UO
   7"4*-:
   *OD
   
   %FFQ
   -FBSOJOHΦʔϧελʔζ
2. © 2017 VASILY,Inc. ࣗݾ঺հ ‣ தଜ
   ୓ຏ
   
   !UO
   ‣ σʔλαΠΤϯςΟετ
   ‣ ུྺɿ
    
   
   
   ΞΫηϯνϡΞ
    
   
   
   
   
   ݱࡏ
   
   
   
   
   7"4*-:
   ‣ ۀ຿ɿ
    ػցֶशɾը૾ೝࣝ
    ΞϧΰϦζϜͷ։ൃ
    αʔϏε΁ͷద༻ 
3. © 2017 VASILY,Inc. ໊ࣾ
   גࣜձࣾ7"4*-: ϰΝγϦʔ
   
   7"4*-: *OD
   ઃཱ
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   ౦ژ౎඼઒۠੢ޒ൓ాδχΞεϏϧ
   '
   ैۀһ
   ໊
   ࢿຊۚ
   ԯ
 ୅දऔక໾
   ۚࢁ
   ༟थ
 औక໾ࠓଜ
   խ޾
   
   ઍ༿
   େี
 ओཁגओ
   
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   ҏ౻஧ςΫϊϩδʔϕϯνϟʔζ
   (.0ϕϯνϟʔύʔτφʔζ
   ,%%*גࣜձࣾ
   גࣜձࣾߨஊࣾ
4. © 2017 VASILY,Inc. Ҏ্ͷϑΝογϣϯ&$αΠτ͔Βͷ΂ສ఺Λ௒͑Δ঎඼Λܝࡌ ݄ؒສਓҎ্͕ར༻͢Δ೔ຊ࠷େڃͷϑΝογϣϯαΠτ
5. © 2017 VASILY,Inc. Google Play ϕετΞϓϦ J04ΞϓϦ
   ɾ"QQ4UPSF
   #&45
   
   ɾ&TTFOUJBMೝఆ "OESPJEΞϓϦ
   ɾ೥
   (PPHMF
   1MBZ
   ϕετΞϓϦ
   ɾ೥
   (PPHMF
   1MBZ
   ϕετΞϓϦ
   ɾ೥
   (PPHMF
   1MBZ
   ϕετΞϓϦ
 ɹɹ
   ϕετΠϊϕʔςΟϒΞϓϦେ৆
   ɾ(PPHMF͔Β
   τοϓσϕϩούʔೝఆ ೥࿈ଓϕετΞϓϦड৆͸
   ੈքͰ7"4*-:͚ͩ
6. © 2017 VASILY,Inc. ໨࣍  ϑΝογϣϯΞΠςϜݕࡧͱը૾ೝࣝ
    ਂ૚ֶशͷ׆༻ࣄྫ
    ࠓޙͷऔΓ૊Έ ༧ఆ 
7. © 2017 VASILY,Inc. ໨࣍  ϑΝογϣϯΞΠςϜݕࡧͱը૾ೝࣝ
    ΞΠςϜݕࡧʹ͓͚Δը૾ೝࣝͷՁ஋
    ϑΝογϣϯ෼໺Ͱѻ͏ը૾
    ϑΝογϣϯΞΠςϜͷݕࡧͱਂ૚ֶश
    ਂ૚ֶशͷ׆༻ࣄྫ
    ࠓޙͷऔΓ૊Έ ༧ఆ 
8. © 2017 VASILY,Inc. 
   ΞΠςϜݕࡧʹ͓͚Δը૾ೝࣝͷՁ஋ ͜ͷͭͷΞΠςϜͷ۠ผʹد༩͢Δ৘ใ͸Կ͔ 
9. © 2017 VASILY,Inc. 
   ΞΠςϜݕࡧʹ͓͚Δը૾ೝࣝͷՁ஋ ͜ͷͭͷΞΠςϜͷ۠ผʹد༩͢Δ৘ใ͸Կ͔ ʻ.VOJDIʼ
   ϒϥ΢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 <8&#ݶఆ঎඼><΢Υογϟϒϧ>ϑϨΞεϦʔϒϒϥ΢ε
   = 
   ϒϥϯυɿ
   ΦΫτʔϒϧʦ
   0$50#3&ʧ
   ΧςΰϦɿϒϥ΢ε
   ৭ɿ྘ʢάϦʔϯʣ
   ΞΠςϜઆ໌ɿ
   τϨϯυΛҙࣝͨ͠ϑϨΞεϦʔϒτοϓεɻ͖ͬ͢Γͱൈ͚ײ ͷ͋ΔωοΫϥΠϯ΍όοΫγϣοτ͕ঁੑΒ͍͠งғؾͮ͘Γ ͷϙΠϯτɻ্඼͞΋͓͠ΌΕײ΋ซͤ࣋ͬͨҰ඼͸ɺͲΜͳੈ ୅ͷํ͔Β΋޷ධͰ͢ɻΦϑΟε΋σʔτ΋͓೚ͤͷσβΠϯͰ ͢ɻ ςΩετͰൺֱͨ͠৔߹ 
10. © 2017 VASILY,Inc. 
    ΞΠςϜݕࡧʹ͓͚Δը૾ೝࣝͷՁ஋ ͜ͷͭͷΞΠςϜͷ۠ผʹد༩͢Δ৘ใ͸Կ͔ ʻ.VOJDIʼ
    ϒϥ΢εʢ./5ʣ
    = 
    ϒϥϯυɿϛϡχοΫʦ.6/*$)ʧ
    ΧςΰϦɿϒϥ΢ε
    ৭ɿ྘ʢάϦʔϯʣ
    ΞΠςϜઆ໌ɿ
    Ϟʔυͳண͜ͳ͠Λ׎͑ΔϘϦϡʔϜεϦʔϒͷϒϥ΢εͰ͢ɻ କΛંΓฦͯ͠௚ઢతͳΧοτΛڧௐ͢Δ͜ͱͰɺ०ͷσΟςΠ ϧ΋ͻͱຯҧ͏ݟ͑ํʹɻγϯϓϧͳ਎ࠒͱͷόϥϯε΋ྑ޷Ͱ ͢ɻγϫʹͳΓʹ͍͘৳ॖૉࡐΛ࢖͓ͬͯΓɺσΠϦʔʹؾܰʹ औΓೖΕΒΕΔͷ͕ϙΠϯτɻ͖ͬ͢Γͱ։͍ͨ7ωοΫ͕େਓ ͷঁੑΒ͠͞Λԋग़͠·͢ɻ <8&#ݶఆ঎඼><΢Υογϟϒϧ>ϑϨΞεϦʔϒϒϥ΢ε
    = 
    ϒϥϯυɿ
    ΦΫτʔϒϧʦ
    0$50#3&ʧ
    ΧςΰϦɿϒϥ΢ε
    ৭ɿ྘ʢάϦʔϯʣ
    ΞΠςϜઆ໌ɿ
    τϨϯυΛҙࣝͨ͠ϑϨΞεϦʔϒτοϓεɻ͖ͬ͢Γͱൈ͚ײ ͷ͋ΔωοΫϥΠϯ΍όοΫγϣοτ͕ঁੑΒ͍͠งғؾͮ͘Γ ͷϙΠϯτɻ্඼͞΋͓͠ΌΕײ΋ซͤ࣋ͬͨҰ඼͸ɺͲΜͳੈ ୅ͷํ͔Β΋޷ධͰ͢ɻΦϑΟε΋σʔτ΋͓೚ͤͷσβΠϯͰ ͢ɻ ςΩετͰൺֱͨ͠৔߹ କʹؔ͢Δઆ໌
    ϑϨΞεϦʔϒ
    WT
    ϘϦϡʔϜεϦʔϒʁ ۗʹؔ͢Δઆ໌
    ൈ͚ײͷ͋ΔωοΫϥΠϯͱ͸ʁ 
11. © 2017 VASILY,Inc. 
    ΞΠςϜݕࡧʹ͓͚Δը૾ೝࣝͷՁ஋ ͜ͷͭͷΞΠςϜͷ۠ผʹد༩͢Δ৘ใ͸Կ͔ ը૾Ͱൺֱͨ͠৔߹ 
12. © 2017 VASILY,Inc. 
    ΞΠςϜݕࡧʹ͓͚Δը૾ೝࣝͷՁ஋ ͜ͷͭͷΞΠςϜͷ۠ผʹد༩͢Δ৘ใ͸Կ͔ ը૾Ͱൺֱͨ͠৔߹ 
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 
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 
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
16. © 2017 VASILY,Inc. ໨࣍  ϑΝογϣϯΞΠςϜݕࡧͱը૾ೝࣝ
     ਂ૚ֶशͷ׆༻ࣄྫ
     *UFN*UFNݕࡧ
     4OBQ*UFNݕࡧ
     *UFN4OBQݕࡧ
     ײ֮తͳΞΠςϜݕࡧ
     ࠓޙͷऔΓ૊Έ ༧ఆ 
17. © 2017 VASILY,Inc. 
    ਂ૚ֶशͷ׆༻ࣄྫ  ݕࡧΫΤϦͱݕࡧର৅ʹԠ࣮ͯ͡ݱํ๏͕ҟͳΔ *UFN*UFNݕࡧ ݕࡧର৅ ࣮ݱํ๏ ঎඼ը૾ ঎඼ը૾
    
    ଐੑ ঎඼ը૾ εφοϓը૾ ঎඼ը૾ ঎඼ը૾ εφοϓը૾ ঎඼ը૾ "VUPFODPEFS 44%
    
    4JNJMBSJUZ
    MFBSOJOH 7"&
    
    ("/ 4OBQ*UFNݕࡧ *UFN4OBQݕࡧ ײ֮తͳɹɹɹ ΞΠςϜݕࡧ ݕࡧΫΤϦ
18. © 2017 VASILY,Inc. 
    *UFN*UFNݕࡧ ঎඼ը૾͔Βྨࣅ͍ͯ͠Δ঎඼ը૾Λݕࡧ͢Δ  ‣ ঎඼ը૾͔Βࣅ͍ͯΔ঎඼Λ୳͢
    ‣ ྨࣅ঎඼ͷൺֱ
     ϒϥϯυ΍஋ஈ͕ҟͳΔ৔߹͕͋Δ ֓ཁ ‣ "VUPFODPEFS
    ‣ ۙࣅۙ๣୳ࡧ ख๏
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
20. © 2017 VASILY,Inc. 
    4OBQ*UFNݕࡧ Ϟσϧ͕ண༻͍ͯ͠Δ঎඼Λεφοϓը૾͔Βݕࡧ͢Δ  ‣ εφοϓը૾ʹ͍ࣸͬͯΔϞσϧ͕ண͍ͯ ΔΞΠςϜʹࣅ͍ͯΔ঎඼Λݕࡧ͢Δ
    ‣ ͓͠ΌΕͳਓͷண͜ͳ͠ΛࢀߟʹͰ͖Δ ֓ཁ ‣ 44%
    ‣ 4JNJMBSJUZ
    MFBSOJOH
    ‣ ۙࣅۙ๣୳ࡧ ख๏
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
22. © 2017 VASILY,Inc. 
    *UFN4OBQݕࡧ ࢀর͍ͯ͠Δ঎඼Λண༻͍ͯ͠ΔϞσϧ͕ొ৔͢Δεφοϓը૾Λݕࡧ͢Δ  ‣ ঎඼ը૾ʹࣅͨΞΠςϜΛண༻͍ͯ͠Δɹɹ εφοϓը૾Λݕࡧ͢Δ
    ‣ ண༻Πϝʔδ΍ίʔσΟωʔτ͕ఏҊͰ͖Δ ֓ཁ ‣ 44%
    ‣ 4JNJMBSJUZ
    MFBSOJOH
    ‣ ۙࣅۙ๣୳ࡧ ख๏
23. © 2017 VASILY,Inc. 
    *UFN4OBQݕࡧ 4OBQ*UFNݕࡧͷٯҾ͖Λ࣮૷͢Δ  ݕग़ ݕࡧ εφοϓը૾ ΞΠςϜྖҬ ݕग़
    Ϟδϡʔϧ ݕࡧ
    Ϟδϡʔϧ
24. © 2017 VASILY,Inc. 
    ײ֮తͳΞΠςϜݕࡧ ঎඼ը૾ʹଐੑΛ෇Ճͯ͠໨తͷΞΠςϜΛݕࡧ͢Δ  ը૾ ଐੑʢϕΫτϧʣ Red Flare Maxi ︙ ‣ ঎඼ը૾ʹଐੑΛՃࢉݮࢉ͠ͳ͕Β୳͢
    ‣ ଐੑͷԋࢉ͸ΠϯλϥΫςΟϒʹߦ͑Δ
    ‣ ݕࡧΫΤϦͷݴޠԽ͕೉͍͠ͱ͖ʹ༗ޮ ֓ཁ ‣ 7"&
    ‣ ("/
    ‣ ۙࣅۙ๣୳ࡧ ख๏
25. © 2017 VASILY,Inc. 
    ײ֮తͳΞΠςϜݕࡧ 
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
27. © 2017 VASILY,Inc. 
    ײ֮తͳΞΠςϜݕࡧ *#*4Ͱൃද͠·ͨ͠  ‣ ϫʔΫγϣοϓͷϨϙʔτ
     IUUQUFDIWBTJMZKQFOUSZJCJT
    ‣ ٕज़ղઆ
     IUUQUFDIWBTJMZKQFOUSZSFUSJFWBM@VTJOH@WBF@HBO
28. © 2017 VASILY,Inc. ໨࣍  ϑΝογϣϯΞΠςϜݕࡧͱը૾ೝࣝ
     ਂ૚ֶशͷ׆༻ࣄྫ
     ࠓޙͷऔΓ૊Έ ༧ఆ
     ײ֮తͳΞΠςϜݕࡧͷߴ౓Խ
     ίʔσΟωʔτͷࣗಈੜ੒ 
29. © 2017 VASILY,Inc. 
    ࠓޙͷऔΓ૊Έ ༧ఆ  ਂ૚ֶशΛ׆༻ͨ͠ߴ౓ͳΞϓϦέʔγϣϯ΍αʔϏεͷ։ൃΛܧଓ  ײ֮తͳΞΠςϜݕࡧͷߴ౓Խ  ίʔσΟωʔτͷࣗಈੜ੒
    QJOL
    
    qBSF
30. © 2017 VASILY,Inc. 
    ײ֮తͳΞΠςϜݕࡧͷߴ౓Խ ‣ ը૾ͱଐੑͷԋࢉʹΑΔΞΠςϜݕࡧ
    ‣ $MBTTJpDBUJPO
    MPTT
    ͱ5SJQMFU
    MPTTʹΑΔධՁ  ࣝผϞσϧ
    
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31. © 2017 VASILY,Inc. 
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    ‣ ઙ͍ύεΛ௥Ճ͢Δ͜ͱͰ୯७ͳߏ଄ͷফࣦΛ๷ࢭ ઙ͍ύεͷ௥Ճ "ODIPS1PTJUJWF/FHBUJWFͷҐஔؔ܎ʹԠͨ͡ਖ਼ଇԽ Embedding Embedding margin Anchor Positive Negative Embedding margin ظ଴͢Δ ঢ়ଶ ๬·͘͠ ͳ͍ঢ়ଶ ֶश ‣ 1PTJUJWF/FHBUJWFͷҐஔʹରͯ͠"ODIPS͕ԕ͗͢Δ
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32. © 2017 VASILY,Inc. 
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