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%FFQ/FVSBM%FDJTJPO5SFFT ಡΈձ! ༶໌
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wஶऀ w:POHYJO:BOH *SFOF(BSDJB.PSJMMP 5JNPUIZ.)PTQFEBMFT w5IF6OJWFSTJUZPG&EJOCVSH wग़య8)* จใ
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wܾఆͱχϡʔϥϧωοτϫʔΫΛΈ߹Θͤͨʂ wܾఆͷղऍੑɼχϡʔϥϧωοτϫʔΫͷදݱྗʢਫ਼ʣͷ͍͍ ͱ͜औΓΛࢦ͍ͯ͠Δɽ ֓ཁ ͲΜͳจʁ
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wۙɼχϡʔϥϧωοτϫʔΫʹΑΔϞσϧͷਫ਼͕ߴ͍ͷͰΑ͘ ΘΕ͍ͯΔ͕ɼग़ྗʹରͯ͠ͷղऍੑ͕͍͠ɽ wैདྷΘΕ͍ͯͨɼܾఆχϡʔϥϧωοτϫʔΫΑΓਫ਼͕ ग़ͤͳ͍͜ͱ͋ΔҰํͰɼղऍੑʹ༏Ε͍ͯΔɽ ֓ཁ ݚڀഎܠ
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wطଘͷ//ϥΠϒϥϦʹߦՃ͢Δ͚ͩͰɼ࣮͕Մೳͳख๏Λఏ Ҋ wֶशํ๏શͯٯޡࠩిͰߦ͏͜ͱ͕ՄೳͰ͋Δɽ wຊख๏Ͱɼಛʹදܗࣜͷྨʹ༗ޮͰ͋Δɽ ֓ཁ ߩݙ
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w4PGUCJOOJOHGVODUJPO %PVHIFSUZFUBM ͷςΫχοΫΛར ༻͢Δɽ w࣮ͷ࿈ଓ ΛCJOͰ͚ΔςΫχοΫɽ wˠඍՄೳͳؔΛ͍ͪͯߦ͏ͨΊɼٯޡ͕ࠩՄೳͰ͋ Δʂʂ x ఏҊख๏ 4PGUCJOOJOHGVODUJPO
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ఏҊख๏ 4PGUCJOOJOHGVODUJPO ͷϕΫτϧͷͳ͔ʹ binningΛߦ͏ ᮢ͕ೖ͍ͬͯΔ b ԹιϑτϚοΫεؔ ͷ࣌ One-hotϕΫτϧͱಉʹͳΔ τ → 0
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ఏҊख๏ 4PGUCJOOJOHGVODUJPO ԹιϑτϚοΫεؔ ͷ࣌ One-hotϕΫτϧͱಉʹͳΔ τ → 0
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w#JOOJOHGVODUJPOʹΑͬͯɼ͚ΒΕͨಛྔΛ༻͍ͯɼχϡʔϥϧ ωοτϫʔΫϞσϧͰॱిΛߦ͏ɽ w//ͷ࠷ऴग़ྗʹରͯ͠ɼΫϩωοΧʔੵΛߦ͏ʢ༿͕Ͱ͖Δʣ wˠ΄ͱΜͲPOFIPUͱಉ͡ঢ়ଶʹͳΔɽ w༿Λશ݁߹ͨ݁͠Ռ͕ɼྨͨ݁͠ՌʹͳΔɽ ఏҊख๏ ༧ଌύʔτ
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ఏҊख๏ ༧ଌύʔτ ಛྔʹରͯ͠ BinningΛߦ͏ Biningͨ͠ಛΛ༻͍ͯ χϡʔϥϧωοτϫʔΫΛߦ͏ ΫϩωοΧʔੵΛͱΓ શ݁߹͢Δ
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w4PGUCJOOJOHGVODUJPOͱ//෦ඍՄೳͰ͋Δ͔Βֶशޡࠩ ٯΛ༻͍Δ͜ͱ͕Ͱ͖Δʂ ఏҊख๏ ֶश࣌
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wطଘख๏ʢ//ϞσϧͱܾఆϞσϧʣͱఏҊख๏Λෳͷදܗࣜ σʔληοτͰਫ਼ͷൺֱΛߦ͏ɽ ࣮ݧ ࣮ݧͰ֬ೝ͢Δ͜ͱ
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࣮ݧ ࣮ݧ݁Ռ
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wطଘख๏ʹ༏ͬͨΓྼ͍ͬͯͨΓɼσʔληοτʹΑͬͯҰҰͰ ͋ͬͨɽ wطଘख๏ͱಉͷੑೳ͍࣋ͬͯΔɽ ࣮ݧ ࣮ݧ݁Ռ
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wఏҊख๏ͰΘΕͳ͍ಛ͕͋Δ͜ͱ͕֬ೝͰ͖ͨ wˠ༧ଌʹඞཁͳ͍ͱஅͰ͖Δ ࣮ݧ ࣮ݧ݁Ռ
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w༿ͷΫϩωοΧʔੵΛ ͱʹͲͷಛྔ͕ΘΕͯ ͍Δ͔Λநग़͢Δ͜ͱ͕Ͱ ͖Δɽ ࣮ݧ Ϟσϧͷղऍੑ
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wಛྔ͕૿͑ͨ࣌Ͱɼ (16ʹΑΔܭࢉޮྑ ͔ͬͨɽ ࣮ݧ ܭࢉޮ
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wຊݚڀͰɼܾఆͱ//ϞσϧΛΈ߹Θͤͨख๏ΛఏҊͨ͠ɽ wຊख๏Ͱɼ//ϞσϧͱಉͷੑೳΛ࣋ͪɼܾఆΈ͍ͨͳղऍੑ ͷߴ͍Ϟσϧʹͳͬͨɽ ·ͱΊ