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20170318_Tokyo.R_ver59
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tetsuroito
March 18, 2017
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20170318_Tokyo.R_ver59
ポエム
tetsuroito
March 18, 2017
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Transcript
RͰεύʔεϞσϦϯά? 201703݄18ɹ @αΠϘζ
ࣗݾհ ໊લɿҏ౻ ప(@tetsuroito) ࣄɿϚωʔΛϑΥϫʔυͯ͠·͢ झຯɿञɺαοΧʔ؍ઓɺεΩʔ ۙگɿࡶࢽʹ໊લ͕ग़ΔͳͲͨ͠ Ұݴɿय़Ͱ͢Ͷ
ݱͷػցֶशͷϒϨΠΫεϧʔ ਂֶश(DeepLearning) Χʔωϧ๏ εύʔεϞσϦϯά
ݱͷػցֶशͷϒϨΠΫεϧʔ ਂֶश(DeepLearning) Χʔωϧ๏ εύʔεϞσϦϯά ͋ͷҪग़͞Μ͕ଠޑʂ
εύʔεϞσϦϯάʁ ༩͑ΒΕͨσʔλʹԠͯ͡౷ܭϞσϧͷඞཁͳ ෦Λࣗಈతʹநग़͢Δٕज़ͷ͜ͱ Ϟσϧબ มબ ͜ΜͳΠϝʔδ ࠷దͳϞσϧΛͲ͏ͬͯ୳͔͢
εύʔεϞσϦϯά֓؍ มબ (L0 ਖ਼ଇԽ) AICɺCVɺWAIC DICɺBIC/MDL εύʔεϞσϦϯά L1 ਖ਼ଇԽ lasso
േଇ͖ͭਪఆ ֊ϕΠζ L2 ਖ਼ଇԽ Ϧοδճؼ/ॖখਪఆ elastic net
ͦΜͳࠓΛͱ͖Ί͘ εύʔεϞσϦϯάͷ Λօ͞Μʹ͓ಧ͚
ͦΜͳࠓΛͱ͖Ί͘ εύʔεϞσϦϯάͷ Λօ͞Μʹ͓ಧ͚ ͍ͨ͠ͱࢥ͕ͬͨ…
ࠓͷࢲͷཧղͰ ղઆ·Ͱٴͼ·ͤΜͰͨ͠ αϯϓϧίʔυ͚ͩܝࡌ͠·͢ɻ͝ΊΜͶ
glmnetͰlassoΛ࣮ࢪ
݁ՌΛඳը
ϏδϡΞϥΠζ
ͱ͍͏Θ͚Ͱ
AIR͔ΒࣄΛୣ͏ͷ͔? ͱ͍͏ࡶͳϙΤϜΛ͠·͢
Έͳ͞Μ ͓ࣄͰRͬͯ·͔͢ʁ
σʔλੳϓϩηεͱ RͷؔੑΛ ݟͯΈΑ͏
CRISP-DMͷϓϩηε
KDDͷϓϩηε બ લॲཧ ม ϚΠχϯά σʔλ ղऍ ධՁ తσʔλ લॲཧࡁ
σʔλ มࡁ σʔλ ύλʔϯ
None
σʔλੳͷܗࣜతͳ ϓϩηεʹ͓͍ͯɺ Rͷकඋൣғ ͔ͳΓ͍Α͏ʹݟ͑·͢
ຊʹͦ͏ͳΜ͚ͩͬʁ ۀϑϩʔͰR͕Έࠐ·Ε͍ͯΔਓʁ
None
None
None
ͬͺRͬͯγεςϜߏਤʹ͍ͳ͍ΑͶ
ͪΌΜͱΘΕ͍ͯΔͳΒɺ͜Μͳײ͡ʹ͍͍͋ͬͯ
RͷཱͪҐஔ ʮΞυϗοΫੳʯͷͨΊͷ ੳπʔϧͳͷͰɺ γεςϜߏ͍ͯ͠ͳ͍ͷͰ
ΞυϗοΫੳͦ͜ਓؒྖҬ બ લॲཧ ม ϚΠχϯά σʔλ ղऍ ධՁ తσʔλ લॲཧࡁ
σʔλ มࡁ σʔλ ύλʔϯ ֫ಘͨ͠φϨοδΛ࣮͠ɺӡ༻͢ΔࡍʹAIతͳৼΔ͍ Λͯ͘͠ΕΔͱͱͯྑͦ͞͏
ڧԽֶश(≒AI) ͷΑ͏ͳΞϓϩʔν͕ղܾͦ͠͏ ͋ͷλΧϠφΪ=αϯݴͬͯͨ https://japan.zdnet.com/article/35096402/
͜͏͡Όͳͯ͘
͜͏͍ͬͨਤ͕͍͍ࣜͷͰ AIͱRڞଘͰ͖ΔͷͰʂ
͝੩ௌ͋Γ͕ͱ͏ ͍͟͝·ͨ͠ʂ Enjoyʂ