Share
Embed
リクルートの現場事例から紐解く「AI」技術のビジネス活用のリアル
2017/07/10 最新事例に学ぶ!AI×クラウドソーシング活用セミナーでの、奥田の講演資料になります
Recruit Technologies
July 12, 2017
Transcript
38 slides
-
$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE w ϓϩϑΟʔϧ w Ԟా༟थ w ಸྑઌՊֶٕज़େֶӃେֶଔ w όΠΦΠϯϑΥϚςΟΫε
Ҩࢠղੳ w झຯɾ w ಡॻɺөըɺΧϝϥɺࣗసंɺྉཧͳͲ w ଟझຯͰ͖ੑɺܗ͔ΒೖΔλΠϓ w #%෦ͷׂ w ϏοάσʔλਓࡐྖҬ(ɿϦΫφϏ৽ଔ w ϏοάσʔλϓϩμΫτ։ൃ(ɿ/-1 w Ϗοάσʔλ෦)35FDI ࣗݾհ -
$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE ϦΫϧʔτςΫϊϩδʔζͷཱͪҐஔ U D D BS R H
S S w ϦΫϧʔτςΫϊϩδʔζɺϦΫϧʔτάϧʔϓͷ*5ɾωοτϚʔέςΟϯάྖҬ ͷςΫϊϩδʔ։ൃΛ୲͏ձࣾ -
$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE & PM T D T T B PM
T R T B R T I TB I TB R T B T I TB PM T B I TB JD TB JD TB B Ϗοάσʔλղੳ෦ͷ৫ମ੍ʹ͍ͭͯ 各種⾦融データ の分析 -
$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE Ϗοάσʔλ෦ʹ͓͚ΔϓϩμΫτ 10 5 1 0 ., 1
.,0 2 1. 22 1 0 . . . oC y vA H L T L e d a s u r th g 5i d R l c p n p a 9 . .,. . ,, 1 e d AC h c igh C e R T L 2 0 -
"MM3JHIU3FTFSWFE$PQZSJHIU D 3FDSVJU5FDIOPMPHJFT$P -UE ɹɹϨίϝϯυɾਪન"1* աڈͷϢʔβཤྺʹج͍ͮͨϨίϝϯυߏஙͷࣗಈԽ - - w ར༻͢ΔσʔλΛఆܕԽ͠Ϩίϝϯυͷಋೖ࣌ؒίετΛॖ
w ͜Ε·ͰݸผαʔϏεʹಛԽͯ͠࡞ΒΕ͍ͯͨϨίϝϯυػೳͷ։ൃΛɺ౷Ұతʹ ѻ͏σʔλεΩʔϜΛࡦఆͯ͠ن֨Խ w ಋೖোนΛݮΒͯ͠ͲͷΑ͏ͳαʔϏεͰؾܰʹಋೖͰ͖ΔΑ͏ʹαϙʔτ -
"MM3JHIU3FTFSWFE$PQZSJHIU D 3FDSVJU5FDIOPMPHJFT$P -UE ɹɹɹɹը૾ղੳ"1* w σΟʔϓϥʔχϯάͰ࠷ޭͨ͠ w ͷը૾ೝࣝίϯϖ *-473$
ʹ͓͚Δ ύϥμΠϜγϑτҎޙͷੈք w ࣗಈӡసͳͲͷجૅͱͳΔେͳٕज़ w ࣮ϓϩμΫτͷԠ༻ྫ w ମࣝผ w ෆదը૾ݕग़ w λά༩ w ը૾ೝࣝʹΑΔϨίϝϯυ 1 / 0 3%# 4*" &- 30% 10% 60% 50, !) 2+ &- . 'Deep Learning ( CNN1)$ ൚༻తͳϩδοΫͰత͝ͱʹಛԽͨ͠ը૾ղੳॲཧ -
"MM3JHIU3FTFSWFE$PQZSJHIU D 3FDSVJU5FDIOPMPHJFT$P -UE ɹɹɹݪߘࣗಈੜ"1* େྔͷݪߘใΛֶशͯ͠ɺػցʹΑΔݪߘͷࣗಈ࡞ w ֶशͨ͠ݪߘʹ͍ۙจষΛ࡞ɾαδΣετ w ͳΔࣗ͘વͳຊޠͰɺֶशͨ͠ݪߘʹ͍ۙจষΛੜ
w ݪߘ࡞ऀͷෛ୲ݮ࡞ۀޮԽɺख़࿅ऀͱಉ͡Α͏ͳจষΛ৽ਓ͕ॻ͚ΔΑ͏ͳ αϙʔτΛػց͕୲͏ -
"MM3JHIU3FTFSWFE$PQZSJHIU D 3FDSVJU5FDIOPMPHJFT$P -UE ɹɹɹɹݪߘߍӾ"1* ϧʔϧϕʔεͱػցֶशͷϋΠϒϦουʹΑΔݪߘߍӾ w ϧʔϧϕʔεʹΑΔνΣοΫ w ͱ༵ͷ߹ੑ
w ॅॴͷؒҧ͍ w /(ϫʔυ w ػցֶशʹΑΔνΣοΫ w ࣈॿࢺͳͲͷޡࣈࣈ w ࠩผදݱͱͳΓ͏Δදݱ w Έ߹ΘͤʹΑΔ/(දݱ ʮࠃຽ੫ۚΛऩΊΔʯ ʮೲΊΔʯͰ ͳ͍Ͱ͔͢ʁ w ޡࣈࣈෆదදݱͷࣗಈݕग़ w 8FCܝࡌݪߘͷߍӾʹ͔͔Δ࣌ؒΛݮ͢Δ͜ͱͰɺࠓͷݪߘ࡞ମ੍Ͱѻ͏ ͜ͱͷͰ͖Δ૯ྔΛ૿͢ -
$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE ౷Ұͨ͠"1*ن֨ʹΑΔޮԽ API API API
w ൚༻Խ w Ϟσϧٕज़Λ൚༻Խ͠ڞ༗ Ͱ͖ΔΑ͏ʹ͢Δ w ͦΕͧΕͷࣄۀσʔλͷಛੑ ʹ߹Θͤͨνϡʔχϯάඞ ཁͱͳΔ -
$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE w 1VCMJD"1*ࣾͰੵٕͨ͠ज़ΛແঈͰ֎෦ެ։ w ҰൠϢʔβͷํ͕ར༻Ͱ͖ΔΑ͏ͳٕज़Λز͔ͭ બग़͠ɺ֎෦༻ʹνϡʔχϯά্ͨ͠Ͱఏڙ w ఏڙ͢Δػೳछྨ w
5FYU$MBTTJpDBUJPO"1*ɿςΩετྨ w 5FYU4VHHFTU"1*ɿςΩετੜαδΣετ w 1SPPGSFBEJOH"1*ɿݪߘߍӾ w 5BML"1*ɿνϟοτϘοτ w -JTUJOH"1*ɿϨίϝϯυ w *NBHF*OqVFODF"1*ɿը૾ೝࣝ w *NBHF4FBSDI"1*ɿϚϧνϞʔμϧݕࡧ w *NBHF(FOFSBUF"1*ɿ%$("/ʹΑΔը૾ੜ "35͕ఏڙ͢Δػցֶश"1*܈ -
$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE 5FYU$MBTTJpDBUJPO"1*ςΩετྨ { "status": 0, "message": "ok", "classes": [
{ "probability": 0.958804, "label": "ITΤϯδχΞʢγεςϜ։ൃɾSEɾΠϯϑϥʣ" }, [...] ] } τϐοΫͷॴଐ֬ τϐοΫ໊ʢϥϕϧʣ $ curl -X POST https://api.a3rt.recruit-tech.co.jp/text_classification/v1/ classify -d "apikey=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA" -d model_id=default -d "text='γεςϜͷاը͔Β։ൃɾӡ༻·Ͱ෯ؔ͘ΘΕ·͢ɻ'" -
$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE 5FYU4VHHFTU"1*ςΩετੜɾαδΣετ { "status": 0, "message": "ok", "suggestion": [
"ͷ্ʹݘ͕࠲͍ͬͯ·͢ɻ", "͕̏಄ཱ͍ͬͯ·͢ɻ", "ͷԣͷํ͕ݟ͑·͢ɻ" ] $ curl "https://api.a3rt.recruit-tech.co.jp/text_suggest/v1/predict? apikey=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA&previous_description=അ" ੜจΛ֨ೲͨ͠ྻ -
$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE 1SPPGSFBEJOH"1*จষߍӾ { "status": 1, "message": "pointed out", "alerts":
[ { "checkedSentence": "γεςϜ ͷ <<ؾ>> ֨ ͔Β ։ൃ ɾ ӡ༻ ·Ͱ ෯͘ ؔΘΕ ·͢ ɻ", "alertCode": 1, "alertDetail": "unnatural", "word": "ؾ", "rankingScore": 0.16431238837473616 }, [...] ] } ࢦఠՕॴΛͰࣔͨ͠จ ࢦఠͷछྨৄࡉ ࢦఠ୯ޠ ࢦఠͨ͠୯ޠͷٙΘ͠͞Λࣔ͢ࢦඪ $ curl "https://api.a3rt.recruit-tech.co.jp/proofreading/v1/typo? apikey=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA&sentence=γεςϜͷؾ͔֨Β։ൃɾӡ༻·Ͱ ෯ؔ͘ΘΕ·͢ɻ" -
$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE 5BML"1*νϟοτϘοτ { "status": 0, "message": "ok", "results": [
{ "perplexity": 0.12975786883239396, "reply": "ΕͯΑ͔ͬͨͰ͢" } ] } $ curl -X POST https://api.a3rt.recruit-tech.co.jp/talk/v1/smalltalk -F "apikey=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA" -F "query=͍͍ఱؾͰ͢Ͷ" ༧ଌੑೳʢύʔϓϨΩγςΟʣ ԠςΩετ -
$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE *NBHF*OqVFODF"1*ը૾ೝࣝ { "status": 0, "message": "ok", "result": {
"score": 3.729642152786255 } } ը૾ͷ࠾݁Ռʢdʣ $ curl -X POST -F apikey=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA -F [email protected] -F predict=1 https://api.a3rt.recruit-tech.co.jp/ image_influence/v1/meat_score -
$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE w ظͱత w ଟछଟ༷ͳۀछɺଟ͘ͷར༻ऀʹ͍ͬͯͨͩ͘͜ͱʹΑΔϑΟʔυόοΫ w ʮσʔλΛूΊΔʯͰͳ͘ʮσʔλ͕ू·Δʯ w
ΦʔϓϯΠϊϕʔγϣϯ w ۙͷػցֶशΛऔΓר͘ϓϩμΫτෳࡶԽˠ୯ҰͷػೳΛෳΈ߹Θͤͯ ෳࡶͳΈΛ࣮ݱ͢Δ͜ͱ͕ඞཁ w ը૾ೝࣝ͢Δ͚ͩɺจষྨ͢Δ͚ͩͰෆे w طଘͷγεςϜͱͲͷΑ͏ʹ༥߹ͤ͞Δ͔ɺػցֶशͰ࣮ݱͰ͖ͳ͍෦Λิ ͏͔ w ͦΕͧΕͷػೳΛͯࣗ͢લͰ༻ҙ͢ΔͷͰͳ͘ɺطʹଘࡏ͢Δ"1*Λ׆༻͢Δ ͜ͱͰɺૉૣ͍։ൃ͕ՄೳʹͳΔ "35ެ։ͷૂ͍ͱɺͦͷઌͷະདྷ -
$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE ϦΫϧʔτྲྀ"*σΟʔϓϥʔχϯάϏδωε׆༻ͷצॴ w Λղܾ͢ΔͷͰͳ͚Ε͍͚ͳ͍ w ʮͱΓ͋͑ͣࢼͯ͠Έͨʯ͚ͩͰϏδωεͱݴ͑ͳ͍ w ࣮ࡍʹͬͯΒΘͳ͚ΕՁ͕ͳ͍ w
ιϦϡʔγϣϯͱͯ͠ఏڙ͠ɺಋೖ͢Δͱ͜Ζ·ͰΓൈ͘ w ސ٬ʹίετΛ͔͚Δ͚ͩͷՁ͕͋Δͱೲಘͯ͠Β͏ w Ϗδωεͱͯ͠εέʔϧ͠ͳ͚Ε͍͚ͳ͍ w ݶΒΕͨਓࡐ࣌ؒͰɺΑΓଟ͘ͷར༻ऀΛ֫ಘ͢Δ ͜Ε·ͰͷγεςϜ։ൃͱҧͬͨߟ͑ํํ๏Ͱ Ϟϊͮ͘ΓΛ͠ͳ͚Ε͍͚ͳ͍ -
$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE ϦΫϧʔτྲྀ"*σΟʔϓϥʔχϯάϏδωε׆༻ͷצॴ w ͤΔ͜ͱ w ࢲͨͪͷͷલʹ͋ΔΛɺͲ͏ͬͨΒػցֶशͷٕज़Λͬͯղܾʹಋ͘ ͜ͱ͕Ͱ͖Δ͔ʁ w ߴ͍རࢠΛܭըతʹฦࡁ͍ͯͨ͘͠Ίͷํ๏
w Ϗδωεͷਓ͕ؒػցֶशΛͲ͏ଊ͍͑ͯΔ͔ w ͤͳ͍͜ͱ w Ͳ͏ͬͨΒ"*ਓೳϏδωεͰҰࢁͯΒΕΔ͔ w Ͳ͜ͷاۀେֶͱڞಉͰ։ൃ͢Εྑ͍͔ -
$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE ϦΫϧʔτྲྀ"*σΟʔϓϥʔχϯάϏδωε׆༻ͷצॴ w ݕ౼ฤ Λਖ਼͘͠ݟۃΊΔ ظΛௐ͢Δ
ظతͳΛ֮ޛ͢Δ w ࣮ฤ ػցֶश෦ΛγεςϜຊମ͔Βͤ͞Δ γϯϓϧͳํ๏͔Βࢼ͍ͯ͘͠ ݁ՌΛਖ਼͘͠ଌΔ -
$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE Λਖ਼͘͠ݟۃΊΔ w ػցֶशʹΑͬͯԿΛ͠ͳ͚Ε͍͚ͳ͍ͷ͔ʁΛ͍ଓ͚Δ w ࠷ऴతͳతʹࢸΔͨΊʹɺͲͷΑ͏ͳΛղ͘ͷ͔ʁΛߟ͑Δ w ݱͰৗʹมΘΓଓ͚ΔʢࢢχʔζͷมԽʣ w
Λղܾ͢ΔͨΊʹ৽ͨͳΛੜΈग़͍͚ͯ͠ͳ͍ w ҆қͳػցֶशͷཚ༻ɺඞͣޙͷෛ࠴ʹܨ͕Δ w ෳͷΛҰʹղ͜͏ͱ͍͚ͯ͠ͳ͍ w ೋ㙽͏ͷҰ㙽Λಘͣ w ྫɿίετݮͭͭ͠རӹ࠷େԽ͢Δਓೳ"* -
$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE ظΛௐ͢Δ w ਫ਼ͷظ w ਓ͕ؒᘳʹͰ͖ͳ͍Α͏ʹɺػց͕ͷਫ਼Λग़͢͜ͱෆՄೳ w ਓؒʹ͚ۙͮΔ͜ͱՄೳ w
Ռͷظ w ࠷ۙͷ"*ࣗಈͰYY͕Ͱ͖Δˠਓؒͷࣄ͕ແ͘ͳΔʜʜʁ w কདྷతͳՄೳੑؚΊͭͭɺݱ࣌ͰͷՄೳෆՄೳΛ໌֬ʹ͢Δ w ධՁͷํ๏Λ͋Β͔͡ΊܾΊ͓ͯ͘ w ඪͷఆྔԽΛͯ͠ɺؒҧͬͨํͷྗΛ͠ͳ͍ w Ϗδωεଆͷਓؒͱٕज़ऀ͕ɺڞ௨ͨ͠ࣈͰٞ͢Δ͜ͱ͕େࣄ -
$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE w ਫ਼໘Ͱܧଓతͳվળ͕ඞཁ w ࠷ॳ͔Βਫ਼͕ཧ·Ͱ্͕ΔΘ͚Ͱͳ͍ w ਫ਼Λ্͍͛ͯ͘ಓͳ࡞ۀ͕ඞཁ w ਫ਼ΛৗʹධՁ͠ϞχλϦϯά͠ଓ͚Δඞཁ͕͋Δ
w ظతͷϙδςΟϒͳଆ໘ w σʔλ͕ੵ͍ͯ͘͜͠ͱͰਫ਼্͍ͯ͘͠ w ʮ͜ΓͷδϨϯϚʯʹؕΒͳ͍ w ͷલͷ՝େࣄ͕ͩɺઌΛݟӽͯ͠ࢿΛ͢Δͷେࣄ ظతͳΛ֮ޛ͢Δ -
$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE ػցֶश෦ΛγεςϜຊମ͔Βͤ͞Δ w ؔੑΛૄʹ͢Δ w ద͢Δ։ൃελΠϧ͕ͦͦҧ͏ w ΥʔλʔϑΥʔϧܕ։ൃWTΞδϟΠϧܕ։ൃ w
ຊମγεςϜͷ։ൃ͕ऴྃͯ͠ػցֶश෦ͷཧଓ͘ w ಠཱͯ͠։ൃ w ΠϯϓοτΞτϓοτΛܾΊ͓͚ͯɺதͷਫ਼্ຊମγεςϜʹӨڹ ͞Εͣʹ࣮ࢪͰ͖Δ w ϚΠΫϩαʔϏεతͳߟ͑ํ -
$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE γϯϓϧͳํ๏͔Βࢼ͍ͯ͘͠ w ؆୯ͳํ๏͔Βࢼͯ͠ɺঃʑʹෳࡶͳख๏ʹਂ۷Δ w ͯ͢ʹ͓͚ΔධՁͷج४Λ࡞Δ w ج४͕ແ͚Εਫ਼࣭ͷྑ͠ѱ͠ΛஅͰ͖ͳ͍ w
ෳࡶͳ͜ͱʹ࣌ؒΛ͔͚ͯ͠·͏͜ͱʹΑΔखΓΛແ͘͢ w ʮ͋ΔΛղ͘ͱ͖ɺͦͷΑΓ͍͠Λ్தͰղ͍ͯͳΒͳ͍ʯ CZ7BQOJLT1SJODJQMF -
$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE ݁ՌΛਖ਼͘͠ଌΔ w ߏஙͨ͠ػցֶश͕Ϗδωεͱͯ͠Ձ͕͋Δ͔Ͳ͏͔ w ͬͯҙຯ͕͋Δͷʁ͋ͬͨͷʁʹ͑Δ w ࢪࡦͷલޙͰͲͷ,1*͕Ͳ͏มΘͬͨͷ͔Λଌఆ w
"#ςετʹΑΔ֬ೝॏཁ w ϩδοΫ͕ϒϥοΫϘοΫεͰ͋Δ͜ͱͷෆ҆ΛऔΓআ͘ w ਓؒͷײ֮ͱػցͷਫ਼͕Ұக͠ͳ͍͜ͱ͕͋Δ w ྫɿϨίϝϯυɾਪનγεςϜ -
$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE ·ͱΊ w αʔϏεΛ͏ਓʹΘΕΔͷΛΔ w Ϗδωεͱͯ͠Ձͷ͋ΔϞϊΛػցֶश"*Ͱ࣮ݱ͢Δ w ৽͍ٕ͠ज़Λ͍ͪૣ͘ಋೖ͠ɺϦΫϧʔτ෦ʹఏڙ͍ͯ͠Δ
w αʔϏεΛ࡞ΔਓʹΘΕΔͷΛΔ w ෳࡶԽ͍ͯ͘͠ػցֶश"*ΛͬͨϓϩμΫτͷ։ൃΛՃ͍ͯ͘͠ w ΦʔϓϯΠϊϕʔγϣϯͱͯ͠ߩݙͭͭ͠ɺϑΟʔυόοΫΛಘΔ w ػցֶशͷ"1*܈"35ͷ֎෦ެ։ w ͥͻͬͯΈͯԼ͍͞ʂ<"35>Ͱݕࡧʂ