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by Akira Midorikawa

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noteͷهࣄϨίϝϯυ ʹ͍ͭͯ note engineer meetup #2

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ࣗݾ঺հ • ྘઒ߊ (Akira Midorikawa) • 2018೥8݄ೖࣾ • αʔόαΠυͷ։ൃΛ΍͖ͬͯͨ • ࠷ۙɺٳ೔͸α΢φʹΑ͘ߦͬͯΔ

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noteͷهࣄϨίϝϯυͱ͸

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noteͷهࣄΛݟͯҰ൪Լ·Ͱ  Ҡಈ͢Δͱग़ͯ͘Δػೳ

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Ϩίϝϯυͷ͘͠Έ • noteʹ͸ςΩετ͕ओମͷهࣄ͕ଟ͍ • هࣄͷςΩετ͔Βࣅ͍ͯΔهࣄΛϢʔβʹ  ͓͢͢Ί͍ͯ͠Δ

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Ϩίϝϯυͷ͘͠Έ • ࣅ͍ͯΔهࣄΛ୳͢ͷʹPythonͷϥΠϒϥϦ ͷgensim (Doc2Vec)Λར༻͍ͯ͠Δ

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Ϩίϝϯυͷ͘͠Έ • ͓͢͢Ίʹ࢖༻͢Δهࣄ͸ɺਓ͕໨Λ௨ͯ͠ ΫΦϦςΟͷߴ͍هࣄΛબΜͰ͍Δ • ׬શʹϗϫΠτϦετܗࣜʹͳ͍ͬͯΔ

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͜ͷػೳ͸2018೥4݄ʹ  ϦϦʔε͞Ε·ͨ͠

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͔͠͠ॏେͳ໰୊Λ  ๊͍͑ͯͨ

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ͦ΋ͦ΋Ϩίϝϯυͷ  ਫ਼౓͕௿͗͢Δ

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Ϩίϝϯυͷਫ਼౓͕௿͍ • શવɺࣅ͍ͯΔهࣄΛϨίϝϯυͰ͖ͯͳ͍ • ͖͋Β͔ʹக໋తͳ໰୊ • લ೚ऀ͕طʹࣙΊͯͨͷͰγεςϜͷશମ૾ Λ஌ͬͯΔਓ΋͍ͳ͍

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ͦΜͳঢ়گ͔Β Ϩίϝϯυͷվળ͕࢝·Δ

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·ͣ਺஋ΛऔΔ

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਺஋ΛͱΔ • ϨίϝϯυͷදࣔͱΫϦοΫͷৄࡉΛͱΕΔ ࢓૊ΈΛͭ͘Δ • SQLͰूܭͰ͖Δ • RedashͰμογϡϘʔυ࡞ͬͯຖ೔ݟΔ

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਺஋ΛݟͯϥϯμϜͳ  Ϩίϝϯυ͕ඇৗʹଟ͍͜ͱ ͕෼͔Δ

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ϥϯμϜͳϨίϝϯυ? • Pythonͷόον͕Ϩίϝϯυ݁ՌΛੜ੒͢Δ ·ͰʹهࣄΛϥϯμϜʹද͍ࣔͯͨ͠ • ͔͠΋ϥϯμϜͰද͍ࣔͯ͠Δظ͕ؒҟ༷ʹ ௕͍͜ͱʹؾͮ͘ • ͕͢͞ʹϥϯμϜදࣔ͸CTR͕ͱͯ΋௿͍ͷͰ ظؒΛॖΊ͍ͨ

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࠷ऴతʹ࢓૊ΈΛ1͔Β࡞Γ ௚͢͜ͱʹͳΔ

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APIαʔόΛͭ͘Δ • Ϩίϝϯυ݁ՌΛฦ͢APIαʔόΛFlaskͰ  ࡞੒͢Δ • هࣄ͕ެ։͞ΕͨλΠϛϯάͰAPIαʔόʹϦ ΫΤετΛૹͬͯϨίϝϯυ݁ՌΛड͚औͬ ͯDBʹอଘ͢Δ

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OPUFBQQ 3BJMT +PC 4JEFLJR .-"1* 'MBTL %#

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APIαʔόΛͭ͘Δ • ͜ΕʹΑͬͯϥϯμϜͳϨίϝϯυ͕දࣔ͞Ε Δ͜ͱ͸΄΅ͳ͘ͳͬͨ • શମͷΫϦοΫ਺, CTR্͕ঢ͢Δ

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Ϩίϝϯυͷਫ਼౓Λ্͛Δ

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Ϩίϝϯυͷਫ਼౓Λ্͛Δ • ͜Ε͸ύϥϝʔλͷௐ੔ͨ͠ΓɺABςετ͠ ͨΓͯ͠ࢼߦࡨޡͯ͠·͢ • ͦͷதͰ΋Ұ൪ޮՌ͕͋ͬͨͷ͸ίʔύεͷ αΠζΛ૿΍͢͜ͱ

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Ϩίϝϯυͷਫ਼౓Λ্͛Δ • ͓͢͢Ί͢Δهࣄ͸ϗϫΠτϦετܗࣜͳͷ Ͱ1ສهࣄ͙Β͍͔͠ͳ͍ • Doc2Vecͷ୯ޠͷ෼ࢄදݱΛे෼ʹֶश͢Δ ʹ͸σʔλྔ͕଍Γͯͳ͍

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Ϩίϝϯυͷਫ਼౓Λ্͛Δ • ೔ຊ൛WikipediaͱnoteͰެ։͞Ε͍ͯΔ  શهࣄΛDoc2Vecͷ୯ޠͷ෼ࢄදݱΛֶश͢ Δͷʹ࢖༻͢Δ • ͜ΕʹΑͬͯΑΓ͍ۙهࣄΛϨίϝϯυͰ͖ ΔΑ͏ʹͳͬͨ

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ֶशʹ࢖༻͢ΔίʔύεΛ ૿΍ͨ͠ޮՌΛൺֱ͢Δ

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