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GAN -Generative Adversarial Networks- (2019-09-26)
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abekoh
October 02, 2022
Technology
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GAN -Generative Adversarial Networks- (2019-09-26)
2019/09に社内LTで発表、2022/10に一部修正したものです
abekoh
October 02, 2022
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Transcript
GAN -Generative Adversarial Networks- abekoh : ͜ͷεϥΠυ2019/09ʹࣾLTͰൃදɺ 2022/10ʹҰ෦मਖ਼ͨ͠ͷͰ͢
GANͱʁ
What’s GAN? • Generatve Adversarial Networks • ఢରతੜωοτϫʔΫ • σΟʔϓϥʔχϯάʹΑΔੜΞϧΰϦζϜ
• ଟ͘ը૾ੜʹར༻͞ΕΔ • GAN(Ϊϟϯ)ͱུ͞ΕΔ
ྫ: إࣸਅͷੜ • ϦΞϧࣸਅͱผෆೳͳϨϕϧͷِը૾ΛAI͕ੜՄೳ ʹͳΔGANs͚ΞʔΩςΫνϟΛNVIDIA͕࡞ - Gigazine IUUQTHJHB[JOFOFUOFXTOWJEJBTUZMFCBTFEHFOFSBUPSBSDIJUFDUVSFHBOT
ྫ: ೋ࣍ݩը૾ • MakeGirlsMoe IUUQTNBLFHJSMTNPF
ྫ: ࣗಈண৭ • PaintsChainer IUUQTQBJOUTDIBJOFSQSFGFSSFEUFDIJOEFY@KBIUNM
࠷ۙͷྫ: إࣸਅͷϑϦʔૉࡐ • generated.photos
GANͷֶशͷΈ
χϡʔϥϧωοτʹΑΔը૾ೝࣝ ͿͲ͏ ΓΜ͝ Έ͔Μ ύΠϯ ϝϩϯ ҰൠతͳΈࠐΈχϡʔϥϧωοτ
ٯ͖ʹ͢Δͱɺը૾ੜثʹ
ఢର͢Δ2ͭͷχϡʔϥϧωοτ Λֶͬͯश VS. (FOFSBUPS ੜث %JTDSJNJOBUPS ผث ِΛੜ ຊِ͔͔ผ
GANͷֶशεςοϓ(1/3) %JTDSJNJOBUPS ຊ ِ • DiscriminatorʹຊΛڭ͑ࠐ·ͤΔ ਖ਼͘͠ຊͱผ͢ΔΑ͏ʹ ຊ
GANͷֶशεςοϓ(2/3) • Generator͕DiscriminatorΛὃ͢Α͏ʹ ڭ͑ࠐ·ͤΔ %JTDSJNJOBUPS ຊ ِ %JTDSJNJOBUPSΛٗ͘ (FOFSBUPS
ੜِͨ͠ ೖྗҬΛߜͬͨཚ
GANͷֶशεςοϓ(3/3) %JTDSJNJOBUPS ຊ ِ • DiscriminatorʹِΛڭ͑ࠐ·ͤΔ ِΛਖ਼͘͠ผͰ͖ΔΑ͏ʹ ੜِͨ͠
͜ͷ3εςοϓΛ܁Γฦֶ͠श
GANͷਐԽ
GAN (2014.6) • I. J. Goodfellow (Google)ʹΑΔ࠷ॳͷจ
DCGAN (2015.11) • Deep Convolutional GAN • ΈࠐΈχϡʔϥϧωοτͰ ߴղ૾ը૾ʹରԠ
ଐੑͷ͠ࢉҾ͖ࢉ
Text to Image (2016.5) • จষ͔Βը૾Λੜ จষΛೖྗʹೖΕΔ
pix2pix (2016.11) • ը૾͔Βը૾ͷม
Stack GAN (2016.12) • ͬͱߴղ૾ʹ
Wasserstein GAN (2017.1) • తؔΛେ෯मਖ਼ɺύϥϝʔλௐָ͕ʹ ͳΜ͔͜Μͳ͔ࣜͭ͏
ͪͳΈʹ… • ֶੜ࣌͜ΕΛར༻ͯ͠ɺ ϑΥϯτͷࣗಈੜΛ͢Δݚڀͯ͠·ͨ͠ https://github.com/uchidalab/fontdesign_gan