AI勉強会2021年8月

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αϯϓϦϯάʹΑΓݶք໬౓Λਪఆ͢Δ͔ɼ4POHΒ<B>͕ߦͬͨΑ͏ʹରԠ͢Δ࿈ଓਖ਼نԽϑϩʔΛධՁ͢Δ͜ͱͰվળͰ͖ΔՄೳੑ͕ߴ͍ɽ

͜ͷϞσϧͰੜ੒͞Εͨը૾ͷϥϯμϜͳαϯϓϧ 5ZQF*NBHF/FUY

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ূͭͭ͠&(743ωοτϫʔΫʹඞཁͳܭࢉྔΛ࡟ݮ͢Δ͜ͱΛࢼΈΔɻ·ͨɺ&(743ωοτϫʔΫͷਪ࿦ϓϩηεΛ࠷దԽ͢ΔͨΊ ʹɺόονਖ਼نԽܭࢉϑϡʔδϣϯɺ৞ΈࠐΈՃ଎ΞϧΰϦζϜɺͦͷଞͷχϡʔϥϧωοτϫʔΫՃ଎ٕज़Λ࣮ࡍͷϋʔυ΢ΣΞϓϥ οτϑΥʔϜʹ࣮૷͍ͯ͠·͢ɻ࠷ऴతʹɺզʑͷ&(743͸ɺ,!'14ͷϦΞϧλΠϜॲཧೳྗΛୡ੒͠·ͨ͠ɻ·ͨɺݱࡏ࠷ઌ ୺ͷ743ωοτϫʔΫͰ͋Δ5FDP("/ͱൺֱͯ͠ɺܭࢉີ౓Λ࡟ݮ͠ɺੑೳΛഒʹߴ଎Խ͠·ͨ͠ɻࢹ֮త඼࣭ͷ໘Ͱ ͸ɺఏҊ͢Δ&(743͸ɺެ։ςετσʔληοτ7JEʹ͓͍ͯɺ΄ͱΜͲͷࢦඪʢ-1*14ɺU0'ɺU-1ͳͲʣͰτοϓͱͳΓɺ૯߹తͳ ύϑΥʔϚϯεείΞͰ͸ଞͷ࠷ઌ୺ͷख๏Λ্ճ͍ͬͯ·͢ɻ͜ͷϓϩδΣΫτͷιʔείʔυ͸IUUQTHJUIVCDPN5INFO &(743ʹ͋Γ·͢ɻ

ΞʔΩςΫνϟ w '/FU w Τϯίʔμ\$POWEˠ-FBLZ3F-6ˠ$POWEˠ-FBLZ3F-6ˠ.BY1PPM^Y w σίʔμ\$POWEˠ-FBLZ3F-6ˠ$POWEˠ-FBLZ3F-6ˠ#JMJOFSB6Qº^Y w 43/FU w
3FT#MPDL\ $POWEˠ3F-6ˠ$POWE 3FT^Y w ࠷ޙʹܰྔαϒϐΫηϧ૚\1JYFM4IV ff l Fºˠ3F-6ˠ$POWE^

#BUDI/PSNBMJ[BUJPO'VTJPO 1×1 convolution 𝑓 𝑥 ⃑ 𝑊 ∗ 𝑥
⃑ 𝑏 ,

ΞοϓαϯϓϦϯά deconvolution, transpose convolution, fractionally-strided convolution, up-convolution, backwards convolution͸͢΂͓ͯͳ͡΋ͷ https://techblog.nhn-techorus.com/archives/12879

IUUQTHJUIVCDPN5INFO&(743

&WJM.PEFMχϡʔϥϧωοτϫʔΫϞσϧͷதʹϚϧ΢ΣΞΛӅ͢ ݪจ&WJM.PEFM)JEJOH.BMXBSF*OTJEFPG/FVSBM/FUXPSL.PEFMT ΤϯυσόΠεͰΞϓϦέʔγϣϯ͕ϞσϧΛىಈ͢Δࡍʹ͸ɺͦ ͷϞσϧ͕ਖ਼౰ͳ΋ͷ͔ΛݕূʢWFSJ fi DBUJPOʣ͢Δ͜ͱΛఏҊ   ύϥϝʔλͷҰ෦Λ-4#Λ༻͍ͨը૾εςΨϊάϥϑΟͷΑ͏ʹ मਖ਼ͯ͠Ϛϧ΢ΣΞΛຒΊࠐΉख๏͸͜Ε·Ͱ͋ͬͨʢ5FODFOUʣ ͕ɺࠓճ͸ύϥϝʔλશͯΛஔ͖׵͑Δɻ
ஶऀ IUUQBSYJWPSHBCTW Ϛϧ΢ΣΞΛൿີཪʹ഑৴͠ɺ͔ͭݕ஌Λճආ͢Δ͜ͱ͸ɺߴ౓ͳϚϧ΢ΣΞΩϟϯϖʔϯʹͱͬͯॏཁͰ͢ɻຊ࿦จͰ͸ɺχϡʔϥϧω οτϫʔΫϞσϧΛ༻͍ͯɺϚϧ΢ΣΞΛӅີ͔ͭݕ஌ճආՄೳʹ഑৴͢Δख๏Λ঺հ͠·͢ɻχϡʔϥϧωοτϫʔΫϞσϧ͸ɺઆ໌ ೳྗ͕௿͘ɺҰൠԽೳྗʹ༏Ε͍ͯ·͢ɻχϡʔϩϯʹϚϧ΢ΣΞΛຒΊࠐΉ͜ͱͰɺχϡʔϥϧωοτϫʔΫͷੑೳʹ͸΄ͱΜͲɺ͋ Δ͍͸શ͘ӨڹΛ༩͑ͣʹɺϚϧ΢ΣΞΛӅີʹ഑৴͢Δ͜ͱ͕Ͱ͖·͢ɻҰํͰɺχϡʔϥϧωοτϫʔΫϞσϧͷߏ଄͸มΘΒͳ͍ ͨΊɺΞϯν΢ΠϧεΤϯδϯͷηΩϡϦςΟεΩϟϯΛ௨ա͢Δ͜ͱ͕Ͱ͖·͢ɻ࣮ݧͰ͸ɺ.#ͷ"MFY/FUϞσϧʹ.#ͷϚ ϧ΢ΣΞΛˋͷਫ਼౓௿ԼͰຒΊࠐΉ͜ͱ͕Ͱ͖ɺ7JSVT5PUBMͰ΢ΠϧεରࡦΤϯδϯ͔Βͷ͕ٙٛग़ͳ͔ͬͨ͜ͱ͔Βɺ͜ͷख๏ͷ࣮ݱ ੑ͕ݕূ͞Ε͍ͯ·͢ɻਓ޻஌ೳͷීٴʹ൐͍ɺχϡʔϥϧωοτϫʔΫͷ׆༻͸ɺϚϧ΢ΣΞͷલਐతͳτϨϯυͱͳ͍ͬͯ·͢ɻຊݚ ڀ͕ɺχϡʔϥϧωοτϫʔΫΛར༻ͨ͠߈ܸʹର͢Δ๷ޚͷͨΊͷࢀߟͱͳΔγφϦΦΛఏڙͰ͖Δ͜ͱΛظ଴͍ͯ͠·͢ɻ

ςΩετ෼ྨͷͨΊͷσʔλ֦ுʹؔ͢Δௐࠪ ݪจ"4VSWFZPO%BUB"VHNFOUBUJPOGPS5FYU$MBTTJ DBUJPO ஶऀμϧϜγϡλοτ޻Պେֶ IUUQBSYJWPSHBCTW ػցֶश༻ͷֶशσʔλΛม׵ʹΑͬͯਓ޻తʹ࡞੒͢ΔʮσʔλΦʔάϝϯςʔγϣϯʯ͸ɺػցֶशͷ෼໺Λ௒͑ͯ޿͘ݚڀ͞Εͯ ͍Δݚڀ෼໺Ͱ͢ɻϞσϧͷ൚ԽೳྗΛߴΊΔͨΊʹ༗༻Ͱ͋ΔҰํɺ໨తͷਖ਼ଇԽΛ௒͑ΔݶΒΕֶͨशσʔλྔͷࠀ෰͔ΒɺϓϥΠ όγʔอޢͷͨΊͷ࢖༻σʔλྔͷ੍ݶ·Ͱɺଞͷଟ͘ͷ՝୊΍໰୊ʹରॲ͢Δ͜ͱ͕Ͱ͖·͢ɻຊௐࠪͰ͸ɺσʔλิڧͷ໨తͱԠ༻ ʹؔ͢Δਖ਼֬ͳهड़ʢ$ʣͱɺطଘͷݚڀʹର͢Δ෼ྨ๏ʢ$ʣʹج͍ͮͯɺςΩετ෼ྨͷͨΊͷσʔλิڧ๏Λର৅ͱ͠ɺݚڀऀ ͱ࣮຿ऀͷͨΊͷ؆ܿͰแׅతͳ֓ཁΛୡ੒͢Δ͜ͱΛ໨తͱ͍ͯ͠·͢ʢ$ʣɻ͜ͷ෼ྨ๏ʹج͍ͮͯɺҎ্ͷख๏Λͷҟͳ
Δάϧʔϓʹ෼͚ɺͲͷख๏͕ඇৗʹ༗๬Ͱ͋Δ͔Λࣔ͢࠷ઌ୺ͷจݙΛఏڙ͍ͯ͠·͢ʢ$ʣɻ࠷ޙʹɼকདྷͷݚڀͷͨΊͷϏϧσΟ ϯάϒϩοΫΛߏ੒͢ΔՄೳੑͷ͋Δݚڀͷల๬Λࣔ͠·͢ʢ$ʣɻ w ݩͷσʔλྔ͕े෼ʹେ͖͍ඞཁ͕͋Δ w ݩσʔλʹແ͍෼ྨ͸Ͱ͖ͳ͍ w ݴޠϞσϧʹόΠΞεؚ͕·Ε͍ͯΔ͜ͱ͕͋Δ w ͕͔͔࣌ؒΔ

AI勉強会2021年8月

AI勉強会2021年8月

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