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noteの記事レコメンドについて
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Akira Midorikawa
February 21, 2019
Programming
1
700
noteの記事レコメンドについて
Akira Midorikawa
February 21, 2019
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Transcript
noteͷهࣄϨίϝϯυ ʹ͍ͭͯ note engineer meetup #2
ࣗݾհ • ߊ (Akira Midorikawa) • 20188݄ೖࣾ • αʔόαΠυͷ։ൃΛ͖ͬͯͨ •
࠷ۙɺٳαφʹΑ͘ߦͬͯΔ
noteͷهࣄϨίϝϯυͱ
noteͷهࣄΛݟͯҰ൪Լ·Ͱ Ҡಈ͢Δͱग़ͯ͘Δػೳ
None
Ϩίϝϯυͷ͘͠Έ • noteʹςΩετ͕ओମͷهࣄ͕ଟ͍ • هࣄͷςΩετ͔Βࣅ͍ͯΔهࣄΛϢʔβʹ ͓͢͢Ί͍ͯ͠Δ
Ϩίϝϯυͷ͘͠Έ • ࣅ͍ͯΔهࣄΛ୳͢ͷʹPythonͷϥΠϒϥϦ ͷgensim (Doc2Vec)Λར༻͍ͯ͠Δ
Ϩίϝϯυͷ͘͠Έ • ͓͢͢Ίʹ༻͢Δهࣄɺਓ͕Λ௨ͯ͠ ΫΦϦςΟͷߴ͍هࣄΛબΜͰ͍Δ • શʹϗϫΠτϦετܗࣜʹͳ͍ͬͯΔ
͜ͷػೳ20184݄ʹ ϦϦʔε͞Ε·ͨ͠
͔͠͠ॏେͳΛ ๊͍͑ͯͨ
ͦͦϨίϝϯυͷ ਫ਼͕͗͢Δ
Ϩίϝϯυͷਫ਼͕͍ • શવɺࣅ͍ͯΔهࣄΛϨίϝϯυͰ͖ͯͳ͍ • ͖͋Β͔ʹக໋తͳ • લऀ͕طʹࣙΊͯͨͷͰγεςϜͷશମ૾ ΛͬͯΔਓ͍ͳ͍
ͦΜͳঢ়گ͔Β Ϩίϝϯυͷվળ͕࢝·Δ
·ͣΛऔΔ
ΛͱΔ • ϨίϝϯυͷදࣔͱΫϦοΫͷৄࡉΛͱΕΔ ΈΛͭ͘Δ • SQLͰूܭͰ͖Δ • RedashͰμογϡϘʔυ࡞ͬͯຖݟΔ
ΛݟͯϥϯμϜͳ Ϩίϝϯυ͕ඇৗʹଟ͍͜ͱ ͕͔Δ
ϥϯμϜͳϨίϝϯυ? • Pythonͷόον͕Ϩίϝϯυ݁ՌΛੜ͢Δ ·ͰʹهࣄΛϥϯμϜʹද͍ࣔͯͨ͠ • ͔͠ϥϯμϜͰද͍ࣔͯ͠Δظ͕ؒҟ༷ʹ ͍͜ͱʹؾͮ͘ • ͕͢͞ʹϥϯμϜදࣔCTR͕ͱ͍ͯͷͰ ظؒΛॖΊ͍ͨ
࠷ऴతʹΈΛ1͔Β࡞Γ ͢͜ͱʹͳΔ
APIαʔόΛͭ͘Δ • Ϩίϝϯυ݁ՌΛฦ͢APIαʔόΛFlaskͰ ࡞͢Δ • هࣄ͕ެ։͞ΕͨλΠϛϯάͰAPIαʔόʹϦ ΫΤετΛૹͬͯϨίϝϯυ݁ՌΛड͚औͬ ͯDBʹอଘ͢Δ
OPUFBQQ 3BJMT +PC 4JEFLJR .-"1* 'MBTL %#
APIαʔόΛͭ͘Δ • ͜ΕʹΑͬͯϥϯμϜͳϨίϝϯυ͕දࣔ͞Ε Δ͜ͱ΄΅ͳ͘ͳͬͨ • શମͷΫϦοΫ, CTR্͕ঢ͢Δ
Ϩίϝϯυͷਫ਼Λ্͛Δ
Ϩίϝϯυͷਫ਼Λ্͛Δ • ͜Εύϥϝʔλͷௐͨ͠ΓɺABςετ͠ ͨΓͯ͠ࢼߦࡨޡͯ͠·͢ • ͦͷதͰҰ൪ޮՌ͕͋ͬͨͷίʔύεͷ αΠζΛ૿͢͜ͱ
Ϩίϝϯυͷਫ਼Λ্͛Δ • ͓͢͢Ί͢ΔهࣄϗϫΠτϦετܗࣜͳͷ Ͱ1ສهࣄ͙Β͍͔͠ͳ͍ • Doc2Vecͷ୯ޠͷࢄදݱΛेʹֶश͢Δ ʹσʔλྔ͕Γͯͳ͍
Ϩίϝϯυͷਫ਼Λ্͛Δ • ຊ൛WikipediaͱnoteͰެ։͞Ε͍ͯΔ શهࣄΛDoc2Vecͷ୯ޠͷࢄදݱΛֶश͢ Δͷʹ༻͢Δ • ͜ΕʹΑͬͯΑΓ͍ۙهࣄΛϨίϝϯυͰ͖ ΔΑ͏ʹͳͬͨ
ֶशʹ༻͢ΔίʔύεΛ ૿ͨ͠ޮՌΛൺֱ͢Δ
None
Ϩίϝϯυͷൺֱ (ఆੑධՁ)
Ϩίϝϯυͷൺֱ (ఆੑධՁ) ϑΣϯωϧΛϋʔϒͱ͔߳ຯࡊͱ͍ۙ୯ޠͱ ֶश͍ͯ͠Δͷ͔ͦ͏͍ͬͨهࣄͷྨࣅ্͕ ͕͍ͬͯΔ
Ϩίϝϯυͷൺֱ (CTR, ABςετ)
վળͷਐḿ
CTR: +4% ΫϦοΫ: 3~4ഒ
CTR, ΫϦοΫͱ ॱௐʹ৳ͼ͍ͯΔ✨
͋Γ͕ͱ͏͍͟͝·ͨ͠!