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機械学習を⽤いた⽇経電⼦版Proのユーザ分析 / Data Analysis in Nikkei using Machine Learning
u++
January 22, 2019
Business
8
9.6k
機械学習を⽤いた⽇経電⼦版Proのユーザ分析 / Data Analysis in Nikkei using Machine Learning
Data Driven Developer Meetup #4 (#d3m) での発表資料
https://d3m.connpass.com/event/115217/
u++
January 22, 2019
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Transcript
ػցֶशΛ༻͍ͨ ܦిࢠ൛1SPͷϢʔβੳ ຊܦࡁ৽ฉࣾ ੴݪↅଠ %BUB%SJWFO%FWFMPQFS.FFUVQ +BOOE
ٕज़ॻయͰࣥචɾެ։ ٕज़ॻయ̑Ͱ൦ͨ͠ܦిࢠ൛ͷٕज़ॻΛ࠶ൢ͠·͢ɻ IUUQTOPUFNVOJLLFJ@TUBGGOODCBC • ୲ͨ͠ୈষʮػցֶशΛ༻͍ͨܦిࢠ൛1SP ͷϢʔβੳʯશͯແঈެ։த
ຊͷ • ࣗݾհ • σʔλಓͱʮܦిࢠ൛1SPʯ • σʔλͷऔಘ • ୳ࡧతσʔλੳͱલॲཧ •
༧ଌϞσϧͷߏங • ݁ՌͷղऍͱϏδωε׆༻
ࣗݾհ • ੴݪↅଠ !VQVSB • ຊܦࡁ৽ฉࣾ ݄ೖࣾ • σʔλΞφϦετˍΤϯδχΞ •
େֶ࣌ɿֶֶ෦ɺ՝֎׆ಈେֶ৽ฉ • झຯɿ,BHHMFɺڝϓϩɺϒϩά ʢ݄BEWFOUDBMFOEBSͳͲͰຊࣥචʣ
σʔλυϦϒϯνʔϜ • αʔϏεاըɾ։ൃӦۀɾϚʔέςΟϯάͰ ʮσʔλΛۙʹʯ • ୯ͳΔੳ͚ͩͰͳ͘ɺج൫ͷඋɺଌఆ߲ͷ ઃܭɺۀޮԽʹ͚ͨڥඋͳͲ • ར༻ݴޠɿ42- 1ZUIPO
3 /PEFKT ຊޠ
ຊͷ • ࣗݾհ • σʔλಓͱʮܦిࢠ൛1SPʯ • σʔλͷऔಘ • ୳ࡧతσʔλੳͱલॲཧ •
༧ଌϞσϧͷߏங • ݁ՌͷղऍͱϏδωε׆༻
σʔλಓ • σʔλυϦϒϯΛՃ͢Δڭҭ੍ʢʙʣ • ੳ୲ऀ͚ͩͰͳ͘ฤूɾӦۀɾࠂͷؔऀΒ ͕ɺ42-σʔλʹجͮ͘1%$"ͷճ͠ํΛֶͿ • Χ݄ʹΘͨΓिʹҰɺۀ࣌ؒͷ࣌ؒ ͷͰूதతʹऔΓΉ
ۀͷݹ͍ձࣾͰσʔλͷຽओԽΛਐΊͨ IUUQTTQFBLFSEFDLDPNZPTVLFTV[VLJOJLLFJEBUBESJWFO
ػցֶशτϨʔχϯά • σʔλಓͷൃల൛ • ֎෦ߨࢣট͖ɺػցֶशͷཧϏδωεԠ༻ ͢ΔͨΊͷϊϋͳͲΛֶͿ • ύοέʔδΛΘͳ͍ػցֶशΞϧΰϦζϜͷ࣮ ͔Β࢝Ίɺ࠷ऴతʹػցֶशΛ༻͍ͯࣗࣾαʔϏε ͷσʔλΛੳ
ܦిࢠ൛1SP • ๏ਓ͚ͷʮܦిࢠ൛ʯ IUUQTQSOJLLFJDPNQSP • ෳਓͰهࣄͷίϝϯτڞ༗͕Ͱ͖Δάϧʔϓ ػೳͳͲɺݸਓܖͷܦిࢠ൛ʹͳ͍ػೳɾ ίϯςϯπ͕ॆ࣮ • ຊܖલͷແྉτϥΠΞϧΛఏڙ
• ແྉτϥΠΞϧ͔ΒຊܖʹࢸΔׂ߹ɺ͢ͳΘͪ ʮຊܖʯɺച্ʹ݁͢Δॏཁͳࢦඪ
ࠓճͷੳͷత • ຊܖͷ্Λࢦ͠ɺաڈʹແྉτϥΠΞϧ ͔Βຊܖͨ͠ʗ͠ͳ͔ͬͨϢʔβΛରʹ͠ɺ ͦΕͧΕͲͷΑ͏ͳಛ͕͋Δ͔Ѳ • Ϣʔβͷଐੑใར༻ʹؔ͢Δใ͔Βɺ ػցֶशΛ༻͍Δ͜ͱͰେྔͷσʔλΛॲཧ͠ɺ ຊܖ͢Δ͔൱͔ʹؔΘΔಛΛఆੑతͰͳ͘ ఆྔతʹಛఆ
ಛྔͷॏཁ આ໌ม !ɿ Ϣʔβଐੑར༻ user_id "# "$ ... "%
& 00000001 0 00000002 1 00000003 0 తม yɿ ຊܖʹࢸ͔ͬͨ൱͔ ػցֶशϞσϧ ಗ໊Խ͞Εͨ*% ༧ଌʹ༻͍ͨಛͷॏཁΛࢉग़ ˠຊܖʹӨڹ͢ΔಛͱԿ͔ʁ
ຊͷ • ࣗݾհ • σʔλಓͱʮܦిࢠ൛1SPʯ • σʔλͷऔಘ • ୳ࡧతσʔλੳͱલॲཧ •
༧ଌϞσϧͷߏங • ݁ՌͷղऍͱϏδωε׆༻
"UMBT • ͨ͠ϦΞϧλΠϜσʔλॲཧج൫ʮ"UMBTʯ ϦΞϧλΠϜσʔλॲཧج൫ ʮ"UMBTʯ ͷιʔείʔυΛެ։͠·͢ IUUQTIBDLOJLLFJDPNCMPHBUMBT@PQFOTPVSDF@QSPKFDU
42- 1ZUIPOͰੳ • 3FEBTI্Ͱ42-Λॻ͖ɺσʔλΛऔಘ • ࠓճػցֶशΛ༻͍ͨൺֱతෳࡶͳੳΛߦ͏ ߹্ɺ42-Ͱσʔλऔಘ·ͰΛѻ͍ɺΓͷ ॲཧ1ZUIPOΛར༻ • ˞,JCBOB
%0.0 34UVEJPͳͲར༻Ͱ͖Δ
ຊͷ • ࣗݾհ • σʔλಓͱʮܦిࢠ൛1SPʯ • σʔλͷऔಘ • ୳ࡧతσʔλੳͱલॲཧ •
༧ଌϞσϧͷߏங • ݁ՌͷղऍͱϏδωε׆༻
୳ࡧతσʔλੳʢ&%"ʣ • औಘͨ͠σʔλͷ֤ಛͷɺܽམͷ༗ແ ͳͲΛ֬ೝ • ݸਓతͳݟղͱͯ͠ɺϏδωεͷੈքͰσʔλΛ ѻ্͍ͬͯ͘Ͱಛʹॏཁͳաఔ • ,BHHMFͳͲͱൺɺϏδωεͰղܾ͖͢ Λಛఆ͠ԾઆΛཱͯΔ͜ͱʹՁ͕͋Δ
σʔλΛදࣔ͢Δ • ଐੑใ͕ఔɺΞΫηεใ͕ఔ
σʔλͷ֓ཁΛ͔ͭΉ • جૅ౷ܭྔܽଛΛோΊΔ • ! == 0 ͕ଟ͍ෆۉߧσʔλ • ʮอଘهࣄʯʮࣗ༝ճͷଐੑใʯʹܽଛ
• ˞લऀ42-ͷॻ͖ํͷʢKPJOʣ
U4/&ͰՄࢹԽ • ߴ࣍ݩσʔλͷ࣍ݩݮͷख๏ • ԫ৭ͷ ! == 1 ͕ൺֱత·ͱ·ͬͨҐஔʹ
ܽଛΧςΰϦมͷॲཧ • ܽଛ͕ଟ͗͢Δมআ • ʮอଘهࣄʯͷܽଛͰຒΊΔ • ΧςΰϦมμϛʔมʹ
-FBLBHFͷআ • ༧ଌͷରͱͳΔʹؔ͢Δ༧ظͤ͵ใֶ͕श σʔλʹଘࡏ͢ΔͨΊɺػցֶशΞϧΰϦζϜ ͕ඇݱ࣮తʹߴ͍ਫ਼Λࣔ͢ݱ • ࠓճʮຊܖਃ͠ࠐΈखଓ͖ϖʔδͷӾཡʯ ͕-FBLBHFʹ • ຊܖΛਃ͠ࠐΉखଓ͖ϖʔδΛӾཡ͍ͯ͠Δ
Ϣʔβɺવ΄΅ͷ֬ͰຊܖʹࢸΔ
ຊͷ • ࣗݾհ • σʔλಓͱʮܦిࢠ൛1SPʯ • σʔλͷऔಘ • ୳ࡧతσʔλੳͱલॲཧ •
༧ଌϞσϧͷߏங • ݁ՌͷղऍͱϏδωε׆༻
ػցֶशϞσϧͷબఆ • ਖ਼ղ"6$ͰϞσϧͷਫ਼Λൺֱ
(SBEJFOU#PPTUJOH$MBTTJGJFS • TLMFBSOͷޯϒʔεςΟϯάܾఆΛ࠾༻ • ཧ༝ᶃ ಛͷॏཁΛࢉग़Ͱ͖ɺతʹ߹க • ཧ༝ᶄ 47$ͱൺೋྨҎ֎ʹԠ༻͍͢͠ •
(SJE4FBSDI$7ͰϋΠύʔύϥϝʔλௐ • ަࠩݕূͷ"6$Ͱఔ
ຊͷ • ࣗݾհ • σʔλಓͱʮܦిࢠ൛1SPʯ • σʔλͷऔಘ • ୳ࡧతσʔλੳͱલॲཧ •
༧ଌϞσϧͷߏங • ݁ՌͷղऍͱϏδωε׆༻
ಛͷॏཁ • ࠓճͷ༧ଌϞσϧʹ͓͚ΔಛͷॏཁΛग़ྗ • ˞աʹಛͷॏཁΛ৴ͣ͡ɺཧతഎܠΛҙࣝ ͯ͠৻ॏʹղऍ͢Δඞཁ͕͋Δ • αʔϏεӦۀɾϚʔέςΟϯάͷ୲ऀʹڞ༗ ͠ɺࠓޙͷࢪࡦʹ͚ͨٞͷࡐྉʹ
·ͱΊ • ػցֶशΛ༻͍ͯܦిࢠ൛1SPͷϢʔβੳΛ ࣮ࢪ͠ɺແྉτϥΠΞϧ͔ΒຊܖʹࢸΔཁҼͱ ͳΔಛΛఆྔతʹಛఆͨ͠ • Ұݟʮݹष͍ʯຊܦࡁ৽ฉࣾͰɺσʔλ׆༻͕ ੵۃతʹల։͞Ε͍ͯΔ ʢσʔλಓɾσʔλج൫ɾػցֶशͳͲʣ