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GANの概要とDCGANのアーキテクチャ/アルゴリズム

Hirosaji
October 09, 2019

 GANの概要とDCGANのアーキテクチャ/アルゴリズム

社内で使った深層学習勉強会スライド(再構成版) 2019/10/30@Hirosaji

Hirosaji

October 09, 2019
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  1. ਂ૚ֶशษڧձ

    ("/ͷ֓ཁͱ
    %$("/ͷΞʔΩςΫνϟʗΞϧΰϦζϜ
    Ճ౻ᚠ໵ !IJSPTBKJ

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  2. આ໌͢ΔྲྀΕ
    ࠓճͷϓϨθϯͷྲྀΕͰ͢ɻ
    %$("/ͷϞσϧͷߏ଄
    %$("/ͷϞσϧΛ஁͑Δ
    ɾ(FOFSBUPSͷ಺෦ߏ଄
    ɾ%JTDSJNJOBUPSͷ಺෦ߏ଄
    ɾ(FOFSBUPSͷଛࣦؔ਺
    ɾ%JTDSJNJOBUPSͷଛࣦؔ਺
    ("/ʗ%$("/ͷ֓ཁ

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  3. ղઆ͠ͳ͍͜ͱ
    ࠓճ͸//ͷجૅతͳղઆ͸͋·Γ͠·ͤΜɻ࣮૷ํ๏ʹ΋৮Ε·ͤΜɻ
    ɾχϡʔϥϧωοτʢ//ʣͷֶशϓϩηε
    ɾڭࢣσʔλ͔ΒϥϯμϜαϯϓϦϯά͢Δख๏ʢϛχόονͳͲʣ
    ɾύϥϝʔλͷޯ഑Λܭࢉ͢Δख๏ʢޡࠩٯ఻೻๏ͳͲʣ
    ɾύϥϝʔλΛߋ৽͢ΔΞϧΰϦζϜʢ4(%ͳͲʣ
    ɾ("/%$("/ͷ࣮૷ํ๏
    ྑ͍ϦϑΝϨϯε͸঺հ͠·͢!
    "

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  4. ("/ʗ%$("/ͷ֓ཁ
    ̍

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  5. GANͬͯͳʹʁ
    ("/͸̎ͭͷҟͳΔϞσϧͰߏ੒͞Εɺσʔλੜ੒ʗม׵ʹ༻͍ΒΕΔɻ
    σʔλΛ෼ྨ͢ΔϞσϧͰ
    σʔλΛੜ੒͢ΔϞσϧΛ஁͑͋͛Δख๏ɻ
    ਖ਼ղϥϕϧ
    (FOFSBUPS
    ʢσʔλੜ੒ثʣ
    %JTDSJNJOBUPS
    ʢσʔλ෼ྨثʣ
    ੜ੒σʔλʢʹʣ
    ڭࢣσʔλʢʹʣ
    ੜ੒σʔλ
    ڭࢣσʔλ
    /PJTF

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  6. GANͬͯͳʹʁ
    ਖ਼ղϥϕϧ
    آ࡞ʢʹʣ
    ຊ෺ʢʹʣ
    آ࡞
    ຊ෺
    /PJTF
    ؑఆ࢜
    ͬ͘͟ΓΠϝʔδɻ࠷ॳ͸·ͩ·ͩਫ਼౓ͷ௿͍੺ͪΌΜϞσϧͨͪΛʜ
    آ࡞৬ਓ
    ࣮૷ͷΠϝʔδͱͯ͠͸·ͣɺ
    ϞσϧΛ࢓ࠐΜͩ̎ਓͷ੺Μ๥Λ༻ҙ͠·͢ɻ

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  7. GANͬͯͳʹʁ
    ޓ͍ʹڝΘͤͯਫ਼౓ΛߴΊ͋͏ߏ੒ɻະख़ͳ̎ਓΛಉ࣌ʹҭͯΔͷ͕؊ɻ
    ͜ͷ̎ਓΛཱ೿ͳآ࡞৬ਓʗؑఆ࢜ʹҭ੒ɻ
    ېஅͷίϯϏΛ݁੒ͤ͞ΔΠϝʔδɻ
    ਖ਼ղϥϕϧ
    آ࡞ʢʹʣ
    ຊ෺ʢʹʣ
    آ࡞
    ຊ෺
    /PJTF
    آ࡞৬ਓ
    ؑఆ࢜

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  8. GANͰԿ͕Ͱ͖Δͷʁ
    ("/ʹ࢝·Δੜ੒Ϟσϧͷݚڀ͸୔ࢁ͋Γ·͢ɻ͍·ϗοτͳٕज़Ͱ͢#
    ʢ44**νϡʔτϦΞϧߨԋʮ4IBMM8F("/T ʙ("/ͷجૅ͔Β࠷ۙͷݚڀ·ͰʙʯͷεϥΠυࢿྉΛҰ෦վมʣ
    ཧ࿦ Ԡ༻
    -PTTΛ޻෉
    ܭࢉͷ҆ఆੑΛ޲্
    ऩଋੑΛ޲্
    ֶशͷภΓʹରԠ
    ը૾ੜ੒
    "&7"&ͱͷ߹Θٕͤ
    ௒ղ૾
    5FYUUP*NBHF
    ߏ଄෼ղ
    %PNBJOͷม׵
    %
    ʢ%PNBJO"EBQUBUJPOʣ
    ҟৗݕ஌
    ɾ4/("/
    ɾ3FMBUJWJTUJD("/
    ɾ5563
    ɾ-4("/
    ɾ$PVMPNC("/
    ɾ8("/
    ɾ8("/(1
    ɾ/VNFSJDPG("/T
    ɾ6OSPMMFE("/
    ɾ1BD("/
    ɾ7&&("/
    ɾ#PVS("/
    ɾ%$("/
    ɾ1SPHSFTTJWF("/
    ɾ#JH("/
    ɾ4UZMF#BTFE("/
    ɾ""&
    ɾ7"&("/
    ɾ*NBHF$PNQSFTTJPO
    ɾ43("/ ɾ&43("/
    ɾ4UBDL("/
    ɾ*OGP("/ ɾ63%'
    ɾ$ZDMF("/ ɾ%JTDP("/
    ɾ%3FD("/
    ɾ%*355
    ɾ"%%" ɾ$ZD"%"
    ɾ7JEFPBOPNBMZEFUFDUJPO
    ɾ"OP("/ ɾ"OP7"&("/
    ʢ%JTFOUBOHMFNFOUʣ
    υϝΠϯదԠ
    ʢ.PEF$PMMBQTFʣ

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  9. GANͰԿ͕Ͱ͖Δͷʁ
    ·ͣ͸ɺࠓճղઆ͢Δ%$("/ɻখ͍͞αΠζͷը૾͕ੜ੒Ͱ͖·͢ɻ
    ʢ44**νϡʔτϦΞϧߨԋʮ4IBMM8F("/T ʙ("/ͷجૅ͔Β࠷ۙͷݚڀ·ͰʙʯͷεϥΠυࢿྉΛҰ෦վมʣ
    ཧ࿦ Ԡ༻
    -PTTΛ޻෉
    ܭࢉͷ҆ఆੑΛ޲্
    ऩଋੑΛ޲্
    ֶशͷภΓʹରԠ
    ը૾ੜ੒
    "&7"&ͱͷ߹Θٕͤ
    ௒ղ૾
    5FYUUP*NBHF
    ߏ଄෼ղ
    %PNBJOͷม׵
    %
    ʢ%PNBJO"EBQUBUJPOʣ
    ҟৗݕ஌
    ɾ4/("/
    ɾ3FMBUJWJTUJD("/
    ɾ5563
    ɾ-4("/
    ɾ$PVMPNC("/
    ɾ8("/
    ɾ8("/(1
    ɾ/VNFSJDPG("/T
    ɾ6OSPMMFE("/
    ɾ1BD("/
    ɾ7&&("/
    ɾ#PVS("/
    ɾ%$("/
    ɾ1SPHSFTTJWF("/
    ɾ#JH("/
    ɾ4UZMF#BTFE("/
    ɾ""&
    ɾ7"&("/
    ɾ*NBHF$PNQSFTTJPO
    ɾ43("/ ɾ&43("/
    ɾ4UBDL("/
    ɾ*OGP("/ ɾ63%'
    ɾ$ZDMF("/ ɾ%JTDP("/
    ɾ%3FD("/
    ɾ%*355
    ɾ"%%" ɾ$ZD"%"
    ɾ7JEFPBOPNBMZEFUFDUJPO
    ɾ"OP("/ ɾ"OP7"&("/
    ʢ%JTFOUBOHMFNFOUʣ
    υϝΠϯదԠ
    ʢ.PEF$PMMBQTFʣ
    ɾ%$("/
    ºͷը૾Λੜ੒
    BS9JW

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  10. GANͰԿ͕Ͱ͖Δͷʁ
    #JH("/ɻ%$("/ͳͲͰදݱͰ͖ͳ͔ͬͨେ͖ͳࣸਅ͕ੜ੒Ͱ͖·͢ɻ
    ʢ44**νϡʔτϦΞϧߨԋʮ4IBMM8F("/T ʙ("/ͷجૅ͔Β࠷ۙͷݚڀ·ͰʙʯͷεϥΠυࢿྉΛҰ෦վมʣ
    ཧ࿦ Ԡ༻
    -PTTΛ޻෉
    ܭࢉͷ҆ఆੑΛ޲্
    ऩଋੑΛ޲্
    ֶशͷภΓʹରԠ
    ը૾ੜ੒
    "&7"&ͱͷ߹Θٕͤ
    ௒ղ૾
    5FYUUP*NBHF
    ߏ଄෼ղ
    %PNBJOͷม׵
    %
    ʢ%PNBJO"EBQUBUJPOʣ
    ҟৗݕ஌
    ɾ4/("/
    ɾ3FMBUJWJTUJD("/
    ɾ5563
    ɾ-4("/
    ɾ$PVMPNC("/
    ɾ8("/
    ɾ8("/(1
    ɾ/VNFSJDPG("/T
    ɾ6OSPMMFE("/
    ɾ1BD("/
    ɾ7&&("/
    ɾ#PVS("/
    ɾ%$("/
    ɾ1SPHSFTTJWF("/
    ɾ#JH("/
    ɾ4UZMF#BTFE("/
    ɾ""&
    ɾ7"&("/
    ɾ*NBHF$PNQSFTTJPO
    ɾ43("/ ɾ&43("/
    ɾ4UBDL("/
    ɾ*OGP("/ ɾ63%'
    ɾ$ZDMF("/ ɾ%JTDP("/
    ɾ%3FD("/
    ɾ%*355
    ɾ"%%" ɾ$ZD"%"
    ɾ7JEFPBOPNBMZEFUFDUJPO
    ɾ"OP("/ ɾ"OP7"&("/
    ʢ%JTFOUBOHMFNFOUʣ
    υϝΠϯదԠ
    ʢ.PEF$PMMBQTFʣ
    ߴղ૾౓ͷը૾Λੜ੒
    BS9JW

    ɾ#JH("/

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  11. GANͰԿ͕Ͱ͖Δͷʁ
    &43("/ɻߴղ૾౓ͳը૾Λ࠶ݱ͢Δ͜ͱʢ௒ղ૾ʣ͕Ͱ͖·͢ɻ
    ʢ44**νϡʔτϦΞϧߨԋʮ4IBMM8F("/T ʙ("/ͷجૅ͔Β࠷ۙͷݚڀ·ͰʙʯͷεϥΠυࢿྉΛҰ෦վมʣ
    ཧ࿦ Ԡ༻
    -PTTΛ޻෉
    ܭࢉͷ҆ఆੑΛ޲্
    ऩଋੑΛ޲্
    ֶशͷภΓʹରԠ
    ը૾ੜ੒
    "&7"&ͱͷ߹Θٕͤ
    ௒ղ૾
    5FYUUP*NBHF
    ߏ଄෼ղ
    %PNBJOͷม׵
    %
    ʢ%PNBJO"EBQUBUJPOʣ
    ҟৗݕ஌
    ɾ4/("/
    ɾ3FMBUJWJTUJD("/
    ɾ5563
    ɾ-4("/
    ɾ$PVMPNC("/
    ɾ8("/
    ɾ8("/(1
    ɾ/VNFSJDPG("/T
    ɾ6OSPMMFE("/
    ɾ1BD("/
    ɾ7&&("/
    ɾ#PVS("/
    ɾ%$("/
    ɾ1SPHSFTTJWF("/
    ɾ#JH("/
    ɾ4UZMF#BTFE("/
    ɾ""&
    ɾ7"&("/
    ɾ*NBHF$PNQSFTTJPO
    ɾ43("/ ɾ&43("/
    ɾ4UBDL("/
    ɾ*OGP("/ ɾ63%'
    ɾ$ZDMF("/ ɾ%JTDP("/
    ɾ%3FD("/
    ɾ%*355
    ɾ"%%" ɾ$ZD"%"
    ɾ7JEFPBOPNBMZEFUFDUJPO
    ɾ"OP("/ ɾ"OP7"&("/
    ʢ%JTFOUBOHMFNFOUʣ
    υϝΠϯదԠ
    ʢ.PEF$PMMBQTFʣ
    ը૾ͷղ૾౓Λ޲্ʢ௒ղ૾ʣ
    BS9JW

    ɾ&43("/

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  12. GANͰԿ͕Ͱ͖Δͷʁ
    *OGP("/ɻإͷ޲͖ͷΑ͏ͳજࡏม਺Λಠཱʹநग़͢Δ͜ͱ͕Ͱ͖·͢ɻ
    ʢ44**νϡʔτϦΞϧߨԋʮ4IBMM8F("/T ʙ("/ͷجૅ͔Β࠷ۙͷݚڀ·ͰʙʯͷεϥΠυࢿྉΛҰ෦վมʣ
    ཧ࿦ Ԡ༻
    -PTTΛ޻෉
    ܭࢉͷ҆ఆੑΛ޲্
    ऩଋੑΛ޲্
    ֶशͷภΓʹରԠ
    ը૾ੜ੒
    "&7"&ͱͷ߹Θٕͤ
    ௒ղ૾
    5FYUUP*NBHF
    ߏ଄෼ղ
    %PNBJOͷม׵
    %
    ʢ%PNBJO"EBQUBUJPOʣ
    ҟৗݕ஌
    ɾ4/("/
    ɾ3FMBUJWJTUJD("/
    ɾ5563
    ɾ-4("/
    ɾ$PVMPNC("/
    ɾ8("/
    ɾ8("/(1
    ɾ/VNFSJDPG("/T
    ɾ6OSPMMFE("/
    ɾ1BD("/
    ɾ7&&("/
    ɾ#PVS("/
    ɾ%$("/
    ɾ1SPHSFTTJWF("/
    ɾ#JH("/
    ɾ4UZMF#BTFE("/
    ɾ""&
    ɾ7"&("/
    ɾ*NBHF$PNQSFTTJPO
    ɾ43("/ ɾ&43("/
    ɾ4UBDL("/
    ɾ*OGP("/ ɾ63%'
    ɾ$ZDMF("/ ɾ%JTDP("/
    ɾ%3FD("/
    ɾ%*355
    ɾ"%%" ɾ$ZD"%"
    ɾ7JEFPBOPNBMZEFUFDUJPO
    ɾ"OP("/ ɾ"OP7"&("/
    ʢ%JTFOUBOHMFNFOUʣ
    υϝΠϯదԠ
    ʢ.PEF$PMMBQTFʣ
    ௚ײతʹղऍͰ͖ΔҼࢠʹ෼ղ͠ɺಠཱͳજࡏม਺Λநग़
    BS9JW

    ɾ*OGP("/

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  13. GANͰԿ͕Ͱ͖Δͷʁ
    $ZDMF("/ɻҟͳΔυϝΠϯʹը૾Λม׵͢Δ͜ͱ͕Ͱ͖·͢ɻ
    ʢ44**νϡʔτϦΞϧߨԋʮ4IBMM8F("/T ʙ("/ͷجૅ͔Β࠷ۙͷݚڀ·ͰʙʯͷεϥΠυࢿྉΛҰ෦վมʣ
    ཧ࿦ Ԡ༻
    -PTTΛ޻෉
    ܭࢉͷ҆ఆੑΛ޲্
    ऩଋੑΛ޲্
    ֶशͷภΓʹରԠ
    ը૾ੜ੒
    "&7"&ͱͷ߹Θٕͤ
    ௒ղ૾
    5FYUUP*NBHF
    ߏ଄෼ղ
    %PNBJOͷม׵
    %
    ʢ%PNBJO"EBQUBUJPOʣ
    ҟৗݕ஌
    ɾ4/("/
    ɾ3FMBUJWJTUJD("/
    ɾ5563
    ɾ-4("/
    ɾ$PVMPNC("/
    ɾ8("/
    ɾ8("/(1
    ɾ/VNFSJDPG("/T
    ɾ6OSPMMFE("/
    ɾ1BD("/
    ɾ7&&("/
    ɾ#PVS("/
    ɾ%$("/
    ɾ1SPHSFTTJWF("/
    ɾ#JH("/
    ɾ4UZMF#BTFE("/
    ɾ""&
    ɾ7"&("/
    ɾ*NBHF$PNQSFTTJPO
    ɾ43("/ ɾ&43("/
    ɾ4UBDL("/
    ɾ*OGP("/ ɾ63%'
    ɾ$ZDMF("/ ɾ%JTDP("/
    ɾ%3FD("/
    ɾ%*355
    ɾ"%%" ɾ$ZD"%"
    ɾ7JEFPBOPNBMZEFUFDUJPO
    ɾ"OP("/ ɾ"OP7"&("/
    ʢ%JTFOUBOHMFNFOUʣ
    υϝΠϯదԠ
    ʢ.PEF$PMMBQTFʣ
    ҟͳΔυϝΠϯͷσʔλʹม׵
    BS9JW

    ɾ$ZDMF("/

    View full-size slide

  14. ࠓճղઆ͢Δͷ͸DCGAN
    ଞʹ΋৭ʑ͋Γ·͕͢ɺࠓճ঺հ͢Δͷ͸%$("/Ͱ͢ɻ
    ʢ44**νϡʔτϦΞϧߨԋʮ4IBMM8F("/T ʙ("/ͷجૅ͔Β࠷ۙͷݚڀ·ͰʙʯͷεϥΠυࢿྉΛҰ෦վมʣ
    ཧ࿦ Ԡ༻
    -PTTΛ޻෉
    ܭࢉͷ҆ఆੑΛ޲্
    ऩଋੑΛ޲্
    ֶशͷภΓʹରԠ
    ը૾ੜ੒
    "&7"&ͱͷ߹Θٕͤ
    ௒ղ૾
    5FYUUP*NBHF
    ߏ଄෼ղ
    %PNBJOͷม׵
    %
    ʢ%PNBJO"EBQUBUJPOʣ
    ҟৗݕ஌
    ɾ4/("/
    ɾ3FMBUJWJTUJD("/
    ɾ5563
    ɾ-4("/
    ɾ$PVMPNC("/
    ɾ8("/
    ɾ8("/(1
    ɾ/VNFSJDPG("/T
    ɾ6OSPMMFE("/
    ɾ1BD("/
    ɾ7&&("/
    ɾ#PVS("/
    ɾ%$("/
    ɾ1SPHSFTTJWF("/
    ɾ#JH("/
    ɾ4UZMF#BTFE("/
    ɾ""&
    ɾ7"&("/
    ɾ*NBHF$PNQSFTTJPO
    ɾ43("/ ɾ&43("/
    ɾ4UBDL("/
    ɾ*OGP("/ ɾ63%'
    ɾ$ZDMF("/ ɾ%JTDP("/
    ɾ%3FD("/
    ɾ%*355
    ɾ"%%" ɾ$ZD"%"
    ɾ7JEFPBOPNBMZEFUFDUJPO
    ɾ"OP("/ ɾ"OP7"&("/
    ʢ%JTFOUBOHMFNFOUʣ
    υϝΠϯదԠ
    ʢ.PEF$PMMBQTFʣ

    View full-size slide

  15. DCGANͬͯͳʹʁ
    %$("/͸ը૾ੜ੒ͷఏҊख๏Ͱ͢ɻ("/ͷߏ଄ʹ$//Λಋೖ͍ͯ͠·͢ɻ
    ਖ਼ղϥϕϧ
    (FOFSBUPS
    ʢը૾ੜ੒ثʣ
    %JTDSJNJOBUPS
    ʢը૾෼ྨثʣ ੜ੒ը૾
    ʢʹʣ
    ڭࢣը૾
    ʢʹʣ
    ੜ੒ը૾
    ڭࢣը૾
    /PJTF
    ը૾Λ෼ྨ͢Δ$//Ͱ
    ը૾Λੜ੒͢Δ$//Λ஁͑͋͛Δख๏ɻ
    ʢจষΛੜ੒͢Δࣄྫ΋͋ΔΒ͍͠ʣ

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  16. GAN -> DCGAN ͷ৽نੑ͸ʁ
    ߏ଄͸("/ͱେମҰॹͰ͕͢ɺ$//ͷಋೖʹগ͠޻෉Λͨ͠Α͏Ͱ͢ɻ
    arXiv:1511.06434
    ˔
    ("/ʹQPPMJOH૚ͷͳ͍$//Λಋೖͨ͠
    ˔
    $//ͷॏΈ͸#BUDI/PSNBSJ[BUJPOͰن֨Խͨ͠
    ˔
    ӅΕ૚Ͱ͸શ݁߹૚Λར༻͠ͳ͍
    ˔
    (FOFSBUPSʗ%JTDSJNJOBUPSͷ׆ੑԽؔ਺ʹ͸3F-6ʗ-FBLZ3F-6Λར༻
    ʢͨͩ͠(FOFSBUPSͷग़ྗ૚͸5BOIʣ

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  17. ʢҰԠʣNNͬͯͳʹʁ
    ೦ͷҝɺ͜͜Ͱࣄલ஌ࣝͷ֬ೝɻ//͸ڊେͳ̍ͭͷؔ਺ͷΑ͏ͳ΋ͷͰ͢ɻ
    χϡʔϥϧωοτϫʔΫʢ//ʣΛҰݴͰ͍͏ͱ
    ೖྗσʔλͰ
    ෼ྨ΍ճؼΛ͢Δ
    ਺ཧϞσϧͷҰछɻ
    ਎௕
    ମॏ
    ݂ѹ
    ମԹ
    ࢹྗ
    ݈߁PSෆ݈߁

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  18. ͲΜͳωοτϫʔΫߏ଄Λઃܭ͢Δ΋ࣗ༝Ͱ͕͢ɺਫ਼౓͕ग़Δ͔͸ࣗݾ੹೚ɻ
    ͲΜͳωοτϫʔΫʹ͢Δ͔͸ઃܭऀͷࣗ༝
    ϨΠϠʔؒͷσʔλαΠζ͕߹͍ͬͯΕ͹ɺ
    ͲΜͳωοτϫʔΫߏ଄ʹͯ͠΋ྑ͍ɻ
    ʢҰԠʣNNͬͯͳʹʁ

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  19. //ϞσϧͰzྑ͍ਪ࿦zΛ͢Δʹ͸ɺॏΈύϥϝʔλͷ࠷దԽ͕ඞཁͰ͢ɻ
    //ͷֶशϓϩηεུ֓
    ɾ
    ɾ
    ɾ
    ɾ
    ɾ
    ɾ
    εςοϓ̍ʢϛχόονʣ
    ڭࢣσʔλ͔ΒϥϯμϜʹҰ෦ͷσʔλΛબग़
    εςοϓ̎ʢޯ഑ͷࢉग़ʣ
    ॏΈύϥϝʔλʹ͍ͭͯଛࣦؔ਺ͷޯ഑Λࢉग़
    εςοϓ̏ʢύϥϝʔλߋ৽ʣ
    ॏΈύϥϝʔλΛޯ഑ํ޲ʹඍখྔ͚ͩߋ৽
    εςοϓ̐ʢ܁Γฦ͢ʣ
    εςοϓ̍ʙ̏Λ܁Γฦ͢
    ʢҰԠʣNNͬͯͳʹʁ

    View full-size slide

  20. ·ͣ͸ɺσʔληοτ͔ΒҰఆ਺ͷσʔλΛ੾Γग़͠·͢ɻ
    //ͷֶशϓϩηεུ֓
    ɾ
    ɾ
    ɾ
    ɾ
    ɾ
    ɾ
    εςοϓ̍ʢϛχόονʣ
    ڭࢣσʔλ͔ΒϥϯμϜʹҰ෦ͷσʔλΛબग़
    εςοϓ̎ʢޯ഑ͷࢉग़ʣ
    ॏΈύϥϝʔλʹ͍ͭͯଛࣦؔ਺ͷޯ഑Λࢉग़
    εςοϓ̏ʢύϥϝʔλߋ৽ʣ
    ॏΈύϥϝʔλΛޯ഑ํ޲ʹඍখྔ͚ͩߋ৽
    εςοϓ̐ʢ܁Γฦ͢ʣ
    εςοϓ̍ʙ̏Λ܁Γฦ͢
    ʢҰԠʣNNͬͯͳʹʁ

    View full-size slide

  21. ࣍ʹɺϛχόον୯ҐͰଛࣦؔ਺ͰޡࠩΛܭࢉ͠ɺޯ഑Λਪఆ͠·͢ɻ
    ɾ
    ɾ
    ɾ
    ɾ
    ɾ
    ɾ
    ڭࢣσʔλ͔ΒϥϯμϜʹҰ෦ͷσʔλΛબग़
    εςοϓ̎ʢޯ഑ͷࢉग़ʣ
    ॏΈύϥϝʔλʹ͍ͭͯଛࣦؔ਺ͷޯ഑Λࢉग़
    εςοϓ̏ʢύϥϝʔλߋ৽ʣ
    ॏΈύϥϝʔλΛޯ഑ํ޲ʹඍখྔ͚ͩߋ৽
    εςοϓ̐ʢ܁Γฦ͢ʣ
    εςοϓ̍ʙ̏Λ܁Γฦ͢
    εςοϓ̍ʢϛχόονʣ
    ॱ఻೻Ͱਪఆ
    ଛࣦؔ਺Ͱ
    ग़ྗͱਖ਼ղͱͷ
    ޡࠩˠޯ഑Λܭࢉ
    //ͷֶशϓϩηεུ֓
    ʢҰԠʣNNͬͯͳʹʁ

    View full-size slide

  22. ͦͯ͠ɺਪఆͨ͠ޯ഑ͰॏΈΛߋ৽ɻֶश܎਺Ͱগͣͭ͠ʮۙࣅʯ͠·͢ɻ
    ɾ
    ɾ
    ɾ
    ɾ
    ɾ
    ɾ
    ڭࢣσʔλ͔ΒϥϯμϜʹҰ෦ͷσʔλΛબग़
    ॏΈύϥϝʔλʹ͍ͭͯଛࣦؔ਺ͷޯ഑Λࢉग़
    εςοϓ̏ʢύϥϝʔλߋ৽ʣ
    ॏΈύϥϝʔλΛޯ഑ํ޲ʹඍখྔ͚ͩߋ৽
    εςοϓ̐ʢ܁Γฦ͢ʣ
    εςοϓ̍ʙ̏Λ܁Γฦ͢
    εςοϓ̍ʢϛχόονʣ
    ٯ఻೻ͰॏΈΛߋ৽
    εςοϓ̎ʢޯ഑ͷࢉग़ʣ
    //ͷֶशϓϩηεུ֓
    ʢҰԠʣNNͬͯͳʹʁ

    View full-size slide

  23. ͜ͷ޻ఔͷ܁Γฦ͠Ͱਫ਼౓͕޲্͠ɺ//Ͱzྑ͍ਪ࿦z͕Ͱ͖ΔΑ͏ʹɻ
    ɾ
    ɾ
    ɾ
    ɾ
    ɾ
    ɾ
    ڭࢣσʔλ͔ΒϥϯμϜʹҰ෦ͷσʔλΛબग़
    ॏΈύϥϝʔλʹ͍ͭͯଛࣦؔ਺ͷޯ഑Λࢉग़
    εςοϓ̏ʢύϥϝʔλߋ৽ʣ
    ॏΈύϥϝʔλΛޯ഑ํ޲ʹඍখྔ͚ͩߋ৽
    εςοϓ̐ʢ܁Γฦ͢ʣ
    εςοϓ̍ʙ̏Λ܁Γฦ͢
    εςοϓ̍ʢϛχόονʣ
    ٯ఻೻ͰॏΈΛߋ৽
    εςοϓ̎ʢޯ഑ͷࢉग़ʣ
    ॱ఻೻Ͱਪఆ
    //ͷֶशϓϩηεུ֓
    ʢҰԠʣNNͬͯͳʹʁ

    View full-size slide

  24. ʢҰԠʣCNNͬͯͳʹʁ
    Ͱɺ৞ΈࠐΈΛߦ͏//͕$//ɻ্ਤ͸̎Ϋϥε෼ྨΛ͢Δγϯϓϧͳྫɻ

    Έ

    Έ

    ׆

    Խ
    ؔ

    ϓ
    ʔ
    Ϧ
    ϯ
    ά

    c
    ׆

    Խ
    ؔ

    ׆

    Խ
    ؔ


    ݁
    ߹


    ݁
    ߹

    $//͸ʮ৞ΈࠐΈʢޙड़ʣʯΛಋೖͨ͠//
    ɾ
    ɾ
    ɾ
    ɾ
    ɾ
    ɾ
    ɾ
    ɾ
    ɾ

    View full-size slide

  25. %$("/ͷϞσϧͷߏ଄
    ̎

    View full-size slide

  26. DCGANͬͯͳʹʁʢ࠶ܝʣ
    %$("/͸("/ͱಉ༷ɺ(FOFSBUPSͱ%JTDSJNJOBUPSͰߏ੒͞Ε·͢ɻ
    ਖ਼ղϥϕϧ
    (FOFSBUPS
    ʢը૾ੜ੒ثʣ
    %JTDSJNJOBUPS
    ʢը૾෼ྨثʣ ੜ੒ը૾
    ʢʹʣ
    ڭࢣը૾
    ʢʹʣ
    ੜ੒ը૾
    ڭࢣը૾
    /PJTF
    ը૾Λ෼ྨ͢Δ$//Ͱ
    ը૾Λੜ੒͢Δ$//Λ஁͑͋͛Δख๏ɻ

    View full-size slide

  27. DCGANͬͯͳʹʁʢ࠶ܝʣ
    ·ͣઆ໌͢Δͷ͸ɺ(FOFSBUPSͰ͢ɻ
    ਖ਼ղϥϕϧ
    (FOFSBUPS
    ʢը૾ੜ੒ثʣ
    %JTDSJNJOBUPS
    ʢը૾෼ྨثʣ ੜ੒ը૾
    ʢʹʣ
    ڭࢣը૾
    ʢʹʣ
    ੜ੒ը૾
    ڭࢣը૾
    /PJTF
    ը૾Λ෼ྨ͢Δ$//Ͱ
    ը૾Λੜ੒͢Δ$//Λ஁͑͋͛Δख๏ɻ

    View full-size slide

  28. Generatorʢੜ੒ثʣͷΞϧΰϦζϜ
    (FOFSBUPSͰ͸ɺ৭Μͳը૾Λੜ੒Ͱ͖ΔΑ͏ɺཚ਺Ͱը૾Λੜ੒͠·͢ɻ
    (FOFSBUPSͰ͸ԿΛ͢Δͷʁ
    ཚ਺Λ༩͑ͯɺ
    ̐૚ͷ$//ϨΠϠͰºͷը૾Λੜ੒͢Δɻ
    arXiv:1511.06434

    View full-size slide

  29. Generatorʢੜ੒ثʣͷΞϧΰϦζϜ
    ը૾ੜ੒ͷϑϩʔͰॏཁͳͷ͸ɺ͜ͷ෦෼ͰߦΘΕͯΔ$//ϨΠϠͰ͢ɻ
    (FOFSBUPSͰ͸ԿΛ͢Δͷʁ
    ཚ਺Λ༩͑ͯɺ
    ̐૚ͷ$//ϨΠϠͰºͷը૾Λੜ੒͢Δɻ
    arXiv:1511.06434

    View full-size slide

  30. Generatorʢੜ੒ثʣͷΞϧΰϦζϜ
    (FOFSBUPSͷ$//ϨΠϠͰ͸ɺೖग़ྗͷؒͰ̏ͭͷॲཧ͕૸Γ·͢ɻ
    (FOFSBUPSʹ͓͚Δ$//ϨΠϠͷ಺෦ߏ଄
    సஔ৞ΈࠐΈ
    #BUDI

    /PSNBMJ[BUJPO
    3F-6
    ৞ΈࠐΈ ਖ਼نԽ ׆ੑԽؔ਺
    /º/
    QJYFMT
    /º/
    QJYFMT
    ೖྗσʔλ ग़ྗσʔλ
    ࣍ͷϑϩʔΛ܁Γฦͯ͠ɺ
    ঃʑʹಛ௃ྔͷαΠζΛେ͖͘͢Δɻ

    View full-size slide

  31. Generatorʢੜ੒ثʣͷΞϧΰϦζϜ
    ̍ͭ໨͕ʮసஔ৞ΈࠐΈʯɻ
    సஔ৞ΈࠐΈ
    #BUDI

    /PSNBMJ[BUJPO
    3F-6
    ৞ΈࠐΈ ਖ਼نԽ ׆ੑԽؔ਺
    /º/
    QJYFMT
    /º/
    QJYFMT
    ೖྗσʔλ ग़ྗσʔλ
    ࣍ͷϑϩʔΛ܁Γฦͯ͠ɺ
    ঃʑʹಛ௃ྔͷαΠζΛେ͖͘͢Δɻ
    $//ϨΠϠͷ಺෦ߏ଄ɿᶃ
    సஔ৞ΈࠐΈ

    View full-size slide

  32. Generatorʢੜ੒ثʣͷΞϧΰϦζϜ
    సஔ৞ΈࠐΈ͸ɺ৞ΈࠐΈʢޙड़ʣ͕సஔ͞ΕͨΠϝʔδͰ͢ɻ
    ग़ྗը૾ʢ্෦ʣΛɺ
    ೖྗը૾ʢԼ෦ʣ͔Β
    ΛಘΔΠϝʔδʢΒ͍͠ʣɻ
    dumoulin/conv_arithmetic
    ը૾Ҿ༻
    $//ϨΠϠͷ಺෦ߏ଄ɿᶃ
    సஔ৞ΈࠐΈ

    View full-size slide

  33. Generatorʢੜ੒ثʣͷΞϧΰϦζϜ
    ºͷೖྗͰɺºͷग़ྗΛ͢ΔྫΛɺҰ͔Β௥ͬͯΈ·͠ΐ͏ɻ
    $//ϨΠϠͷ಺෦ߏ଄ɿᶃ
    సஔ৞ΈࠐΈ
    ೖྗσʔλ Χʔωϧ ग़ྗσʔλ




    ,FSOFMTJ[F
    1BEEJOH


    4USJEFT
    %$("/1BSBNT





    ʢʹ1BEEJOHʣ

    View full-size slide

  34. Generatorʢੜ੒ثʣͷΞϧΰϦζϜ
    Χʔωϧʹର͠ɺ̍ηϧ͝ͱͷೖྗσʔλΛϒϩʔυΩϟετ͍͖ͯ͠·͢ɻ
    $//ϨΠϠͷ಺෦ߏ଄ɿᶃ
    సஔ৞ΈࠐΈ
    ೖྗσʔλ Χʔωϧ




    ग़ྗσʔλ




    ,FSOFMTJ[F
    1BEEJOH


    4USJEFT
    %$("/1BSBNT





    ʢʹ1BEEJOHʣ

    View full-size slide

  35. Generatorʢੜ੒ثʣͷΞϧΰϦζϜ
    1BEEJOH͚ͩग़ྗΛύσΟϯά͠ɺ4USJEFT୯Ґʹζϥ͠ͳ͕Β৐ࢉ͠·͢ɻ
    $//ϨΠϠͷ಺෦ߏ଄ɿᶃ
    సஔ৞ΈࠐΈ
    ೖྗσʔλ




    ग़ྗσʔλ





    ʢʹ1BEEJOHʣ
    ,FSOFMTJ[F
    1BEEJOH


    4USJEFT
    %$("/1BSBNT
    Χʔωϧ

    ʢʹ4USJEFTʣ




    View full-size slide

  36. Generatorʢੜ੒ثʣͷΞϧΰϦζϜ
    ͲΜͲΜ৐ࢉ͍͖ͯ͠·͢ɻ
    $//ϨΠϠͷ಺෦ߏ଄ɿᶃ
    సஔ৞ΈࠐΈ
    ೖྗσʔλ




    ग़ྗσʔλ




    ,FSOFMTJ[F
    1BEEJOH


    4USJEFT
    %$("/1BSBNT
    Χʔωϧ

    ʢʹ1BEEJOHʣ

    ʢʹ4USJEFTʣ




    View full-size slide

  37. Χʔωϧ
    Generatorʢੜ੒ثʣͷΞϧΰϦζϜ
    ͦͯ͠࠷ޙ·ͰຒΊΔͱ͜Μͳײ͡ɻ྘ͷ෦෼͕ग़ྗσʔλͰ͢ɻ
    $//ϨΠϠͷ಺෦ߏ଄ɿᶃ
    సஔ৞ΈࠐΈ
    ೖྗσʔλ










    ग़ྗσʔλ




    ,FSOFMTJ[F
    1BEEJOH


    4USJEFT
    %$("/1BSBNT





    ʢʹ1BEEJOHʣ

    ʢʹ4USJEFTʣ

    View full-size slide





















  38. Χʔωϧ








    ೖྗσʔλ
    Generatorʢੜ੒ثʣͷΞϧΰϦζϜ
    ·ͨɺը૾͸3(#ͳͲ̏৭ͷνϟϯωϧΛ༻͍ͯॲཧ͢Δ͜ͱ͕ຆͲͰ͢ɻ
    $//ϨΠϠͷ಺෦ߏ଄ɿᶃ
    సஔ৞ΈࠐΈ
    ग़ྗσʔλ




    ,FSOFMTJ[F
    1BEEJOH


    4USJEFT
    %$("/1BSBNT





    ʢʹ$IBOOFMTʣ

    ʢʹ$IBOOFMTʣ










    View full-size slide





















  39. Χʔωϧ








    ೖྗσʔλ
    Generatorʢੜ੒ثʣͷΞϧΰϦζϜ
    ͨͩ͜ͷ··Ͱ͸ɺ%$("/ͷਤʹ͋ͬͨDIBOOFM਺ͱ਺͕Ұக͠·ͤΜɻ
    $//ϨΠϠͷ಺෦ߏ଄ɿᶃ
    సஔ৞ΈࠐΈ
    ग़ྗσʔλ




    ,FSOFMTJ[F
    1BEEJOH


    4USJEFT
    %$("/1BSBNT





    ʢʹ$IBOOFMTʣ

    ʢʹ$IBOOFMTʣ










    *OQVUDIBOOFMT
    0VUQVUDIBOOFMT

    ʢʹ$IBOOFMTʣ

    View full-size slide





















































  40. Χʔωϧ
    ೖྗσʔλ
    Generatorʢੜ੒ثʣͷΞϧΰϦζϜ
    ͜ͷ৔߹͸ɺೖྗσʔλͱΧʔωϧΛਫ૿ͯ͠͠ɺDIBOOFM਺Λἧ͑·͢ɻ
    $//ϨΠϠͷ಺෦ߏ଄ɿᶃ
    సஔ৞ΈࠐΈ
    ग़ྗσʔλ




    ,FSOFMTJ[F
    1BEEJOH


    4USJEFT
    %$("/1BSBNT





    ʢʹ$IBOOFMTʣ

    ʢʹ$IBOOFMTʣ










    *OQVUDIBOOFMT
    0VUQVUDIBOOFMT

    ʢʹ$IBOOFMTʣ


    View full-size slide

  41. Generatorʢੜ੒ثʣͷΞϧΰϦζϜ
    Ҏ্͕సஔ৞ΈࠐΈͷܭࢉϑϩʔͰ͢ɻଓ͍ͯɺ#BUDI/PSNBMJ[BUJPOɻ
    సஔ৞ΈࠐΈ
    #BUDI

    /PSNBMJ[BUJPO
    3F-6
    ৞ΈࠐΈ ਖ਼نԽ ׆ੑԽؔ਺
    /º/
    QJYFMT
    /º/
    QJYFMT
    ೖྗσʔλ ग़ྗσʔλ
































    /
    /
    /
    /
    $
    $
    $//ϨΠϠͷ಺෦ߏ଄ɿᶄ
    #BUDI/PSNBMJ[BUJPO

    View full-size slide

  42. Generatorʢੜ੒ثʣͷΞϧΰϦζϜ
    #BUDI/PSNBMJ[BUJPO͸ɺ׆ੑԽؔ਺ͷલʹߦ͏ਖ਼نԽͷख๏Ͱ͢ɻ
    ɾֶशͷࡍͷϛχόονΛ୯Ґͱͯ͠ɺ
    ɹϛχόον͝ͱʹਖ਼نԽΛߦ͏ख๏ɻ
    ɾ͜ͷਖ਼نԽʹΑͬͯɺ࣍ͷΑ͏ͳޮՌ͕ظ଴Ͱ͖Δɻ
    ޯ഑ফࣦΛ๷͙ʢଛࣦؔ਺ʹγάϞΠυؔ਺ͳͲΛ࢖͏৔߹ʣ
    ֶशΛ଎͘ਐߦͰ͖Δʢֶश܎਺Λେ͖͘͢Δ͜ͱ͕Ͱ͖Δʣ
    աֶशΛ཈੍Ͱ͖Δʢ%SPQPVUͳͲͷඞཁੑΛݮΒ͢ʣ
    $//ϨΠϠͷ಺෦ߏ଄ɿᶄ
    #BUDI/PSNBMJ[BUJPO

    View full-size slide

  43. Generatorʢੜ੒ثʣͷΞϧΰϦζϜ
    ۩ମతʹ͸ɺσʔλ෼෍͕ฏۉ̌ɺ෼ࢄ̍ʹͳΔΑ͏ʹਖ਼نԽ͠·͢ɻ
    arXiv:1502.03167
    $//ϨΠϠͷ಺෦ߏ଄ɿᶄ
    #BUDI/PSNBMJ[BUJPO

    View full-size slide

  44. Generatorʢੜ੒ثʣͷΞϧΰϦζϜ
    σʔλΛਖ਼نԽͨ͠Βɺ࠷ޙʹ׆ੑԽؔ਺Ͱ͋Δ3F-6Λ͔͚·͢ɻ
    సஔ৞ΈࠐΈ
    #BUDI

    /PSNBMJ[BUJPO
    3F-6
    ৞ΈࠐΈ ਖ਼نԽ ׆ੑԽؔ਺
    /º/
    QJYFMT
    /º/
    QJYFMT
    ೖྗσʔλ ग़ྗσʔλ












    ˑ ˑ ˑ ˑ
    ˑ ˑ ˑ ˑ
    ˑ ˑ ˑ ˑ
    ˑ ˑ ˑ ˑ
    /
    /
    $
















    /
    /
    $
    $//ϨΠϠͷ಺෦ߏ଄ɿᶅ
    3F-6

    View full-size slide

  45. Generatorʢੜ੒ثʣͷΞϧΰϦζϜ
    ׆ੑԽؔ਺͸৭ʑ͋Γ·͕͢ɺதͰ΋3F-6͸ޯ഑ফࣦʹڧ͍ͷ͕ಛ௃Ͱ͢ɻ
    $//ϨΠϠͷ಺෦ߏ଄ɿᶅ
    3F-6
    ɾ࣍ͷ૚ʹ౉͢σʔλͷ஋Λௐ੔͢Δ׆ੑԽؔ਺ͷ̍ͭɻ
    *OUSPEVDUJPOUP%J⒎FSFOU"DUJWBUJPO'VODUJPOTGPS%FFQ-FBSOJOH
    ɾಛ௃͸࣍ͷ௨Γɻ
    ޯ഑ফࣦʹڧ͍
    ࠷΋Α͘࢖ΘΕ͍ͯΔ
    γϯϓϧ

    View full-size slide

  46. DCGANͬͯͳʹʁʢ࠶ʑܝʣ
    ଓ͍ͯɺ%JTDSJNJOBUPSΛઆ໌͠·͢ɻ
    ਖ਼ղϥϕϧ
    (FOFSBUPS
    ʢը૾ੜ੒ثʣ
    %JTDSJNJOBUPS
    ʢը૾෼ྨثʣ ੜ੒ը૾
    ʢʹʣ
    ڭࢣը૾
    ʢʹʣ
    ੜ੒ը૾
    ڭࢣը૾
    /PJTF
    ը૾Λ෼ྨ͢Δ$//Ͱ
    ը૾Λੜ੒͢Δ$//Λ஁͑͋͛Δख๏ɻ

    View full-size slide

  47. Discriminatorʢ෼ྨثʣͷΞϧΰϦζϜ
    %JTDSJNJOBUPS͸ɺೖྗը૾͕ੜ੒͞Εͨ΋ͷ͔ͦ͏Ͱͳ͍Λ൑ผ͠·͢ɻ
    %JTDSJNJOBUPSͰ͸ԿΛ͢Δͷʁ
    ºͷը૾Λ༩͑ͯɺ
    ̐૚ͷ$//Ͱੜ੒ʗڭࢣը૾Λ෼ྨ͢Δɻ
    arXiv:1511.06434

    View full-size slide

  48. Discriminatorʢ෼ྨثʣͷΞϧΰϦζϜ
    ͜ͷ൑ผͷϑϩʔͰॏཁͳͷ͸ɺ͜ͷ෦෼ͰߦΘΕΔ$//ϨΠϠͰ͢ɻ
    %JTDSJNJOBUPSͰ͸ԿΛ͢Δͷʁ
    ºͷը૾Λ༩͑ͯɺ
    ̐૚ͷ$//Ͱੜ੒ʗڭࢣը૾Λ෼ྨ͢Δɻ
    arXiv:1511.06434

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  49. %JTDSJNJOBUPSͷ$//ϨΠϠͰ͸ɺೖग़ྗؒͰ̎ͭͷॲཧ͕૸Γ·͢ɻ
    %JTDSJNJOBUPSʹ͓͚Δ$//ϨΠϠͷ಺෦ߏ଄
    ৞ΈࠐΈ
    -FBLZ
    3F-6
    ৞ΈࠐΈ ׆ੑԽؔ਺
    ೖྗσʔλ ग़ྗσʔλ
    /º/
    QJYFMT
    /º/
    QJYFMT
    ࣍ͷϑϩʔͷ$//Λ܁Γฦͯ͠ɺ
    ࠷ޙʹը૾Λ̎஋෼ྨʢੜ੒PSڭࢣʣ͢Δɻ
    Discriminatorʢ෼ྨثʣͷΞϧΰϦζϜ

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  50. ·ͣ͸ɺ৞ΈࠐΈɻ
    ৞ΈࠐΈ
    -FBLZ
    3F-6
    ৞ΈࠐΈ ׆ੑԽؔ਺
    ೖྗσʔλ ग़ྗσʔλ
    /º/
    QJYFMT
    /º/
    QJYFMT
    ࣍ͷϑϩʔͷ$//Λ܁Γฦͯ͠ɺ
    ࠷ޙʹը૾Λ̎஋෼ྨʢੜ੒PSڭࢣʣ͢Δɻ
    Discriminatorʢ෼ྨثʣͷΞϧΰϦζϜ
    $//ϨΠϠͷ಺෦ߏ଄ɿᶃ
    ৞ΈࠐΈ

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  51. ৞ΈࠐΈ͸ɺసஔ৞ΈࠐΈͱ͸ٯʹɺ৘ใΛڽॖͤ͞ΔΠϝʔδɻ
    ग़ྗը૾ʢ্෦ʣΛɺ
    ೖྗը૾ʢԼ෦ʣ͔Β
    ΛಘΔΠϝʔδʢΒ͍͠ʣɻ
    $//ϨΠϠͷ಺෦ߏ଄ɿᶃ
    ৞ΈࠐΈ
    Discriminatorʢ෼ྨثʣͷΞϧΰϦζϜ
    dumoulin/conv_arithmetic
    ը૾Ҿ༻

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  52. खॱͱͯ͠͸ɺ͜Μͳײ͡ɻ
    Discriminatorʢ෼ྨثʣͷΞϧΰϦζϜ
    $//ϨΠϠͷ಺෦ߏ଄ɿᶃ
    ৞ΈࠐΈ
    Χʔωϧ
    ೖྗσʔλ ग़ྗσʔλ














    ,FSOFMTJ[F
    1BEEJOH


    4USJEFT
    %$("/1BSBNT

    ʢʹ1BEEJOHʣ

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  53. ੾Γग़ͨ͠ೖྗσʔλͱΧʔωϧΛରԠ͢Δηϧ͝ͱʹֻ͚߹Θͤ·͢ɻ
    Discriminatorʢ෼ྨثʣͷΞϧΰϦζϜ
    $//ϨΠϠͷ಺෦ߏ଄ɿᶃ
    ৞ΈࠐΈ
    Χʔωϧ
    ೖྗσʔλ ग़ྗσʔλ















    ,FSOFMTJ[F
    1BEEJOH


    4USJEFT
    %$("/1BSBNT

    ʢʹ1BEEJOHʣ

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  54. ͦΕΛ4USJEFT͝ͱʹζϥ͠ͳ͕Βଓ͚ΔΠϝʔδɻ
    Discriminatorʢ෼ྨثʣͷΞϧΰϦζϜ
    $//ϨΠϠͷ಺෦ߏ଄ɿᶃ
    ৞ΈࠐΈ
    Χʔωϧ
    ೖྗσʔλ ग़ྗσʔλ





    ,FSOFMTJ[F
    1BEEJOH


    4USJEFT
    %$("/1BSBNT

    ʢʹ1BEEJOHʣ











    ʢʹ4USJEFTʣ

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  55. ͜ΕΛ࠷ޙ·Ͱ܁Γฦͯ͠ʜ
    Discriminatorʢ෼ྨثʣͷΞϧΰϦζϜ
    $//ϨΠϠͷ಺෦ߏ଄ɿᶃ
    ৞ΈࠐΈ
    Χʔωϧ
    ೖྗσʔλ ग़ྗσʔλ





    ,FSOFMTJ[F
    1BEEJOH


    4USJEFT
    %$("/1BSBNT

    ʢʹ1BEEJOHʣ










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  56. ग़ྗσʔλΛಘ·͢ɻʢDIBOOFM਺ͷࡲΓ߹Θͤ͸লུ͠·͢ʣ
    Discriminatorʢ෼ྨثʣͷΞϧΰϦζϜ
    $//ϨΠϠͷ಺෦ߏ଄ɿᶃ
    ৞ΈࠐΈ
    Χʔωϧ
    ೖྗσʔλ ग़ྗσʔλ








    ,FSOFMTJ[F
    1BEEJOH


    4USJEFT
    %$("/1BSBNT

    ʢʹ1BEEJOHʣ











    ʢʹ4USJEFTʣ

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  57. ଓ͍ͯɺಘΒΕͨ഑ྻʹ׆ੑԽؔ਺Λ͔͚·͢ɻʢϓʔϦϯά͸͠·ͤΜʣ
    ৞ΈࠐΈ
    -FBLZ
    3F-6
    ৞ΈࠐΈ ׆ੑԽؔ਺
    ೖྗσʔλ ग़ྗσʔλ
    /º/
    QJYFMT
    /º/
    QJYFMT
    ࣍ͷϑϩʔͷ$//Λ܁Γฦͯ͠ɺ
    ࠷ޙʹը૾Λ̎஋෼ྨʢੜ੒PSڭࢣʣ͢Δɻ
    Discriminatorʢ෼ྨثʣͷΞϧΰϦζϜ
    $//ϨΠϠͷ಺෦ߏ଄ɿᶄ
    -FBLZ3F-6

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  58. -FBLZ3F-6ͷಛ௃͸3F-6ͱࣅ͍ͯ·͕͢ɺઆ໌ͷ౎߹্ɺৄࡉ͸ޙͰɻ
    $//ϨΠϠͷ಺෦ߏ଄ɿᶄ
    -FBLZ3F-6
    Discriminatorʢ෼ྨثʣͷΞϧΰϦζϜ
    ɾ࣍ͷ૚ʹ౉͢σʔλͷ஋Λௐ੔͢Δ׆ੑԽؔ਺ͷ̍ͭɻ
    *OUSPEVDUJPOUP%J⒎FSFOU"DUJWBUJPO'VODUJPOTGPS%FFQ-FBSOJOH
    ɾಛ௃͸ޙ΄Ͳઆ໌ɻ

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  59. %$("/ͷϞσϧΛ஁͑Δ
    ̏

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  60. DCGANͷϞσϧΛ஁͑Δํ๏
    Ϟσϧߏ଄ͷ࣍͸ɺϞσϧΛ஁͑Δͷʹඞཁͳଛࣦؔ਺ͷ࿩Λ͠·͢ɻ
    ଛࣦؔ਺ͰϞσϧΛ஁͑Δ
    ɾҰൠʹ//ϞσϧΛ஁͑ΔͨΊʹ͸ɺ
    ɹଛࣦؔ਺Λ༻͍ͯॏΈύϥϝʔλͷޯ഑Λܭࢉ͠ɺ
    ɹͦͷޯ഑͕খ͘͞ͳΔΑ͏ʹॏΈύϥϝʔλΛߋ৽͍ͯ͘͠ɻ
    ɾ("/ͷଛࣦؔ਺͸ɺ

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  61. DCGANͷϞσϧΛ஁͑Δํ๏
    ("/ͷଛࣦؔ਺͸্ࣜɻ͜Ε͸̎ͭͷଛࣦؔ਺͕͍ࠞͬͯ͟ΔͷͰ෼͚·͢ɻ
    ଛࣦؔ਺ͰϞσϧΛ஁͑Δ
    ɾҰൠʹ//ϞσϧΛ஁͑ΔͨΊʹ͸ɺ
    ɹଛࣦؔ਺Λ༻͍ͯॏΈύϥϝʔλͷޯ഑Λܭࢉ͠ɺ
    ɹͦͷޯ഑͕খ͘͞ͳΔΑ͏ʹॏΈύϥϝʔλΛߋ৽͍ͯ͘͠ɻ
    ɾ("/ͷଛࣦؔ਺͸ɺ
    ˢ(FOFSBUPSͱ%JTDSJNJOBUPSͷଛࣦؔ਺ΛҰͭͷࣜͰද͍ͯ͠Δ

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  62. DCGANͷଛࣦؔ਺
    ·ͣ%JTDSJNJOBUPSͷଛࣦؔ਺ɻ৚݅Λ؆୯ʹͯ͠ɺग़ྗ͸͜Μͳײ͡ɻ
    %JTDSJNJOBUPSͷଛࣦؔ਺ʢ̍ʗ̎ʣ
    ɾ%JTDSJNJOBUPSͷग़ྗ% Y
    Z͸ɺ
    ɹศٓతʹγάϞΠυؔ਺Λֻ͚ͯɺʙʹม׵͞ΕΔ΋ͷͱ͢Δɻ
    ɾϥϕϧMͰ͸ɺ(FOFSBUPSʹΑΔੜ੒ը૾͕ɺڭࢣը૾͕ɻ
    ɾ͜ͷͱ͖ɺ%JTDSJNJOBUPSͷग़ྗ͸ɺ

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  63. %JTDSJNJOBUPSͷଛࣦؔ਺ʢ̎ʗ̎ʣ
    ɾϥϕϧͱΛผʑʹѻ͏ͨΊʹɺಉ࣌֬཰ͷର਺ΛͱΔɻ
    ɾ%JTDSJNJOBUPSͷग़ྗ͸ϛχόονͷσʔλ਺.ݸ෼͋Γɺ
    ɹͦͷಉ࣌֬཰͸ɺ
    ϛχόονΛ͔͚ͨ࣌ɺϥϕϧ
    ͷಉ࣌֬཰͕͜Εɻͦͯ͠MPHΛ෇༩ɻ
    DCGANͷଛࣦؔ਺

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  64. %JTDSJNJOBUPSͷଛࣦؔ਺ʢ̎ʗ̎ʣ
    ɾϥϕϧͱΛผʑʹѻ͏ͨΊʹɺಉ࣌֬཰ͷର਺ΛͱΔɻ
    ɾ%JTDSJNJOBUPSͷग़ྗ͸ϛχόονͷσʔλ਺.ݸ෼͋Γɺ
    ɹͦͷಉ࣌֬཰͸ɺ
    ͜Ε͕%JTDSJNJOBUPSͷଛࣦؔ਺
    ͜ͷଛࣦؔ਺͕࠷େͰ͖Δ͚ͩϥϕϧΛਖ਼͘͠༧ଌ͢ΔΑ͏ֶशͤ͞Δɻ
    DCGANͷଛࣦؔ਺

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  65. (FOFSBUPSͷଛࣦؔ਺͸ɺ%JTDSJNJOBUPSͷଛࣦؔ਺ʹఢରͤ͞·͢ɻ
    ɾ(FOFSBUPS͸%JTDSJNJOBUPSΛὃͨ͢Ίɺ
    ɹ%JTDSJNJOBUPSͷଛࣦؔ਺ͷग़ྗΛ࠷খʹ͍ͨ͠ɻ
    ɾ(FOFSBUPS͕ੜ੒͢Δग़ྗɹɹ͸ϥϕϧͳͷͰɺ
    ɹʢɹɹɹɹɹɺ(FOFSBUPS΁ͷೖྗը૾Λɹͱͯ͠ʣ
    (FOFSBUPSͷଛࣦؔ਺
    DCGANͷଛࣦؔ਺

    ͜Ε͕(FOFSBUPSͷଛࣦؔ਺

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  66. ͜ΕͰ(FOFSBUPSͱ%JTDSJNJOBUPSͷଛࣦؔ਺͕ͦΕͧΕἧ͍·ͨ͠ɻ
    (FOFSBUPS%JTDSJNJOBUPSͷଛࣦؔ਺
    ɾ(FOFSBUPSͰ͸͜ͷଛࣦؔ਺Λ࠷খʹ͢Δ
    ɾ%JTDSJNJOBUPSͰ͸͜ͷଛࣦؔ਺Λ࠷େʹ͢Δ
    DCGANͷଛࣦؔ਺

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  67. ஗Ε͹ͤͳ͕Βɺ-FBLZ3F-6ͷઆ໌Ͱ͢ɻ্૚ʹߋ৽Λ఻͑Δͷ͕ཧ༝ɻ
    %JTDSJNJOBUPS
    Ͱ
    -FBLZ3F-6
    Λ࢖͏ཧ༝
    ɾ%JTDSJNJOBUPSͷଛࣦؔ਺ʹ͸(FOFSBUPSͷ൑ఆ݁Ռؚ͕·ΕΔɻ
    /PJTF (FOFSBUPS
    ੜ੒σʔλ
    %JTDSJNJOBUPS
    ٯ఻೻ͰॏΈΛߋ৽
    ɾ3F-6ͩͱɺٯ఻೻ͰͷॏΈߋ৽ͰɺҎԼͷޡ্͕ࠩ૚ʹ఻ΘΒͳ͍ɻ
    DCGANͷଛࣦؔ਺
    ʢͳͷͰ
    -FBLZ3F-6Λ࢖͏ʣ

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  68. ͦͯ͠ɺ͜ΕΒΛ࣮૷͢Δͷʹ࠷దͳૉ੖Β͍͠ϦϑΝϨϯε͕ͪ͜Βɻ
    ࣮૷ํ๏͸ͪ͜ΒΛࢀর͍ͯͩ͘͠͞
    DCGANΛ࣮૷͢Δ
    1Z5PSDIͰ࣮૷͢Δ 5FOTPSqPXͰ࣮૷͢Δ

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  69. ·ͱΊ
    ࠷ޙʹɺࠓճͷϓϨθϯͷ·ͱΊͰ͢ɻ
    ɾ("/ʗ%$("/ͷ֓ཁʢʴجૅʣΛઆ໌ͨ͠
    ɾ%$("/ͷϞσϧߏ଄ΛॱΛ௥ͬͯղઆͨ͠
    ɾ%$("/ͷϞσϧΛ஁͑Δଛࣦؔ਺Λղઆͨ͠

    View full-size slide

  70. Ҏ্ɺ͝੩ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠ɻ
    SFGFSFODF
    ɾࡈ౻߁ؽ.ɿθϩ͔Β࡞Δ Deep Learning―Python ͰֶͿσΟʔϓϥʔχϯά
    ɹͷཧ࿦ͱ࣮૷, ΦϥΠϦʔɾδϟύϯʢ2016ʣ
    ɾখ઒༤ଠ࿠ɿͭ͘Γͳ͕ΒֶͿ! PyTorchʹΑΔൃలσΟʔϓϥʔχϯά,
    ɹϚΠφϏग़൛ʢ2019ʣ
    ɾGoodfellow, Ian, et al.ɿGenerative adversarial nets., Advances in neural
    ɹinformation processing systems.ʢ2014ʣ
    ɾRadford, Alec, Luke Metz, Soumith Chintala.ɿUnsupervised representation
    ɹlearning with deep convolutional generative adversarial networks., arXiv
    preprint, arXiv:1511.06434.ʢ2015ʣ
    Thank you!

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  71. Ҏ্ɺ͝੩ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠ɻ
    SFGFSFODF
    Thank you!
    ɾCS231n Winter 2016: Lecture 13: Segmentation, soft attention,
    ɹspatial transformers
    ɹhttps://youtu.be/ByjaPdWXKJ4
    ɾPyTorch documentation
    ɹhttps://pytorch.org/docs/
    ɾͦͷଞɺεϥΠυ಺ʹهࡌ

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