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ը૾ੜ੒Ͱ༡Ϳ Open Source Conference 2021 Online/Niigata 2021-10-02 @kasacchiful

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Classmethod, Inc. Solutions Architect / Software Develper Favorite: Community: • JAWS-UG Niigata • Python ML in Niigata • JaSST Niigata • ASTER • SWANII • etc. Hiroshi Kasahara @kasacchiful @kasacchiful 2

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Pythonػցֶशษڧձ in Niigata IUUQTQZNMOJJHBUBDPOOQBTTDPN

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աڈͷOSC NiigataͰͷൃද IUUQTTQFBLFSEFDLDPNLBTBDDIJGVMPTDOJJHBUB IUUQTTQFBLFSEFDLDPNLBTBDDIJGVMPTDOJJHBUB

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ը૾ੜ੒ͷϞσϧ σʔλΛֶश ֶशͨ͠σʔλʹࣅͨ σʔλΛ৽ͨʹੜ੒

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ը૾ੜ੒ͷϞσϧ • ΦʔτΤϯίʔμ • σʔλͷಛ௃Λѹॖ͠ɺॏཁͳಛ௃͚ͩ࢒ͨ͠ޙɺ෮ݩ • ఢରతੜ੒ωοτϫʔΫ (GAN) • ِ෺Λੜ੒͢Δ Generator ͱɺِ෺Λݟൈ͘ Discriminator ͕ڝ ͍߹͏Α͏ʹֶश͢Δ͜ͱͰਫ਼౓Λ্͛Δ

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ΦʔτΤϯίʔμ • σʔλͷಛ௃Λѹॖ͠ɺॏཁͳಛ௃͚ͩ࢒ͨ͠ޙɺ෮ݩ • ग़ྗ͕ೖྗΛ࠶ݱ͢ΔΑ͏ʹֶश • தؒ૚͸ೖग़ྗ૚ΑΓখ͘͞

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ఢରతੜ੒ωοτϫʔΫ (GAN) • 2ͭͷϞσϧΛޓ͍ʹڝΘͤΔΑ͏ʹֶश͢Δ͜ͱͰ σʔλΛੜ੒ • Generator • ϥϯμϜͳϊΠζΛೖྗͱͯ͠ɺDiscriminator͕ ຊ෺ͱؒҧ͏Α͏ͳσʔλΛੜ੒͢Δ • Discriminator • ຊ෺ͷσʔλͱGeneratorͷੜ੒σʔλΛਖ਼͘͠ ൑ผ͢ΔΑ͏ʹֶश͢Δ

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ओͳ༻్ • ΦʔτΤϯίʔμ • ҟৗݕ஌ • ϊΠζআڈ • GAN • ը૾ੜ੒ • ը૾ΞϨϯδ (ը෩ͷมߋͳͲ)ɺը૾ԋࢉ ("Smailing Woman” - “Neutral Woman” + “Neutral Man” = “Smailing Man”) • ଞʹ΋Ԡ༻ଟ਺…

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StyleGAN2 Ͱ ਓ෺ը૾ੜ੒αΠτ https://thispersondoesnotexist.com/

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ࠓճͷσϞ

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σϞͷ಺༰ • Google ColaboratoryͰ࣮ߦࡁͷ಺༰Λ͓ݟͤ͠·͢ɻ • https://github.com/kasacchiful/osc2021niigata • VAE (Variational Auto Encoder) • MNISTͷ਺ࣈը૾σʔλΛ࢖ͬͯɺજࡏม਺ΛมԽͤ͞Δ͜ͱͰը૾Λ࡞Γग़͢ • CycleGAN • അ͔ΒγϚ΢Ϛ΁ม׵ • Ґஔ΍ܗঢ়͕όϥόϥͰ΋ɺྔ͑͋͞Ε͹͍͍ײ͡ʹม׵Ͱ͖ͯ͠·͏

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Kerasͷαϯϓϧίʔυ • VAE: • https://keras.io/examples/generative/vae/ • CycleGAN: • https://keras.io/examples/generative/cyclegan/

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·ͱΊ • ը૾ੜ੒Ͱ༡ΜͰΈͨ • αϯϓϧ΋ͨ͘͞Μެ։͞Ε͍ͯΔͷͰɺ༡ͼ΍͍͢

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͓͠·͍