会社訪問アプリ「Wantedly Visit」における相互推薦システムの応用事例 / deim2020-rrs-wantedly-visit

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©2020 Wantedly, Inc. ͸͡Ίʹ w ࣗݾ঺հɼձࣾͱϓϩμΫτͷ঺հ w ϓϩμΫτʹ͓͚ΔσʔλαΠΤϯεͷऔΓ૊Έࣄྫ ૬ޓਪનγεςϜͱ͸ w ֓ཁɼैདྷͷਪનγεςϜͱൺ্ֱͨ͠Ͱͷಛ௃ͱ՝୊ ձࣾ๚໰ΞϓϦʮ8BOUFEMZ7JTJUʯʹ͓͚Δ૬ޓਪનγεςϜ w 8BOUFEMZ7JTJUʹ͓͚Δ૬ޓਪનγεςϜͷಛ௃ͱ՝୊ɼٴͼऔΓ૊Έ ձࣾ๚໰ΞϓϦʮ8BOUFEMZ7JTJUʯʹ͓͚Δ૬ޓਪનγεςϜͷԠ༻ࣄྫ

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©2020 Wantedly, Inc. ։ൃ૊৫ Visit Dev Tribe People Tribe Infra Squad All Engineers and Designers w σʔλαΠΤϯςΟετͷΈ͔ΒͳΔݚڀ։ൃνʔϜͷΑ͏ͳ΋ͷ͸ઃ͚͍ͯͳ͍ɻ w ͋͘·ͰϓϩμΫτΛʢ௚઀తʹʣΑΓΑ͘͢Δ͢Δ͜ͱʹߩݙ͢Δ͜ͱΛ໨తͱ͍ͯ͠Δɻ w ϓϩμΫτʹ͓͚Δୡ੒͢΂͖໨త͝ͱʹνʔϜ 4RVBE ͕݁੒͞ΕɼͦͷνʔϜϝϯόʔͷ ̍ਓͱͯ͠σʔλαΠΤϯςΟετ΍.-ΤϯδχΞ͕ΞαΠϯ͞ΕΔɻ

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©2020 Wantedly, Inc. ૬ޓਪનγεςϜʢReciprocal Recommender Systemsʣͱ͸ʁ ʮαʔϏε಺ͷϢʔβΛޓ͍ʹਪન͢ΔγεςϜʯ User Item ैདྷͷҰൠతͳਪનγεςϜ ૬ޓਪનγεςϜ User(Female) User(Male) User(Job Seeker) User(Recruiter/Company) ex. Amazon, Netflix ex. Tinder, Pairs ex. Wantedly, LinkedIn

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©2020 Wantedly, Inc. ਪનͷ੒ޭ w ैདྷͷਪનγεςϜ w ਪન͕੒ޭ͢Δ͔Ͳ͏͔͸ɼਪનΛड͚औΔϢʔβ TVCKFDU ͷΈʹΑܾͬͯఆ͞ΕΔɻ w Ϣʔβ͕ਪન͞ΕΔΞΠςϜ PCKFDU Λߪೖࢹௌ͢Ε͹ͦͷਪન͸੒ޭͱͳΔɻ w ਪન͞ΕΔΞΠςϜͷҙࢥ͸ؔ܎ͳ͍ɻ w ૬ޓਪનγεςϜ w ਪન͕੒ޭ͢Δ͔Ͳ͏͔͸ɼਪનΛड͚औΔϢʔβ TVCKFDU ͱਪન͞ΕΔϢʔβ PCKFDU ͷ྆ํʹΑܾͬͯఆ͞ΕΔɻ w ਪનΛड͚औΔϢʔβ͕޷ҙʢ-JLF ԠืʣΛࣔ͠ɼਪન͞ΕͨϢʔβ͕޷ҙతͳϦΞΫγϣϯΛ͢Ε͹ͦͷ ਪન͸੒ޭͱͳΔɻ w ਪન͞ΕͨϢʔβ͕޷ҙతͳϦΞΫγϣϯΛ͠ͳ͚Ε͹ͦͷਪન͸ࣦഊʹऴΘΔɻ

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©2020 Wantedly, Inc. ਪનγεςϜʹର͢ΔϢʔβͷೝࣝ w ैདྷͷਪનγεςϜ w ਪનΛड͚औΔϢʔβ͸ɼਪન͕੒ޭ͢Δ͔Ͳ͏͔͸ɼਪનΛड͚औΔϢʔβͷΈʹ Αܾͬͯఆ͞ΕΔ͜ͱΛೝ͍ࣝͯ͠Δɻ w ਪન͞ΕΔΞΠςϜ͕ࣗ෼ͷᅂ޷ʹҰக͍ͯ͠Ε͹ߪೖࢹௌ͢Δɻ w ਪન͞ΕΔΞΠςϜ͕ͲΜͳϢʔβʹߪೖࢹௌ͞Ε͍ͨͱࢥ͍ͬͯΔ͔ͳͲߟ͑Δඞཁͳ͍ɻ w ૬ޓਪનγεςϜ w ਪનΛड͚औΔϢʔβ͸ɼਪન͕੒ޭ͢Δ͔Ͳ͏͔͸ɼਪનΛड͚ΔϢʔβͱਪન͞Ε ΔϢʔβͷ྆ํʹΑܾͬͯఆ͞ΕΔ͜ͱΛೝ͍ࣝͯ͠Δɻ w ਪન͞ΕͨϢʔβ͕ͲΕ͚ͩັྗతͰࣗ෼ͷᅂ޷ʹҰக͍ͯͯ͠΋ɼࣗ෼͕૬खͷᅂ޷ʹҰக͍ͯ͠ͳͯ͘ ޷ҙతͳϦΞΫγϣϯ͕ظ଴Ͱ͖ͳ͍ͱ͖͸޷ҙʢ-JLF ԠืʣΛࣔ͞ͳ͍͜ͱ͕͋Δɻ w αʔϏεʹ͓͍ͯ͸ʮ޷ҙʯΛࣔ͢ͷʹ՝ۚͳͲͷϦεΫ͕ඞཁͳ৔߹ʹେ͖͘Өڹ͕ग़Δɻ

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©2020 Wantedly, Inc. Ϣʔβ͔Β໌ࣔతʹఏڙ͞ΕΔϓϩϑΟʔϧ΍ᅂ޷ʹ͍ͭͯͷ৘ใ w ैདྷͷਪનγεςϜ w Ϣʔβ͸͋·Γࣗ෼ͷϓϩϑΟʔϧ΍ᅂ޷ʹ͍ͭͯͷ৘ใΛఏڙ͠ͳ͍ɻ w ఏڙ͢ΔϞνϕʔγϣϯ͕͋·Γͳ͍ɻ w ৽نϢʔβʹ͍ͭͯͷ৘ใ͕গͳ͍ͨΊίʔϧυελʔτ໰୊͕ى͖΍͍͢ɻ w ૬ޓਪનγεςϜ w Ϣʔβ͸ੵۃతʹࣗ෼ͷϓϩϑΟʔϧ΍ᅂ޷ʹ͍ͭͯͷ৘ใΛఏڙ͢Δɻ w ଞͷϢʔβʹݟΒΕɼͦΕ͕ਪનͷ੒ޭʹॏཁͰ͋Δ͜ͱΛೝ͍ࣝͯ͠Δɻ w ৽نϢʔβʹ͍ͭͯͷ৘ใ͕ॆ࣮͍ͯ͠ΔͨΊίʔϧυελʔτ໰୊͕ൺֱతখ͍͞ɻ w ৘ใ͕ਖ਼͍͠ͱ͸ݶΒͳ͍ɻ w ࣮ࡍΑΓ΋ັྗతʹݟͤΔͨΊʹࣄ࣮ͱ͸ҟͳΔ৘ใΛఏڙ͢Δ͜ͱ΋ɻ w ࣗ෼ͷᅂ޷Λ෼͔͍ͬͯͳ͍৔߹΋ଟʑ͋Δɻ

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©2020 Wantedly, Inc. ϢʔβͷϥΠϑαΠΫϧ w ैདྷͷਪનγεςϜ w ਪનγεςϜʹຬ଍͢Ε͹αʔϏεΛ௕͘࢖͍ଓ͚Δɻ w Ϣʔβͷߦಈʹجͮ͘҉໧తͳᅂ޷৘ใ͕ଟ͘஝ੵ͞ΕΔɻ w ڠௐϑΟϧλϦϯάͳͲʹར༻ w ૬ޓਪનγεςϜ w ਪનγεςϜʹຬ଍͢ΔͱαʔϏε͔Β཭୤͢Δ͜ͱ͕ଟ͍ɻϢʔβͷϥΠϑαΠΫϧ ͕୹͍ɻ w FY݁ࠗɼస৬ w Ϣʔβͷߦಈʹجͮ͘҉໧తͳᅂ޷৘ใ͕ͨ·Γʹ͍͘ɻ

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©2020 Wantedly, Inc. ϢʔβͷγεςϜ಺ʹ͓͚Δߦಈͷ࢟੎ w ैདྷͷਪનγεςϜ w Ϣʔβ͸ੵۃతʹೳಈతʹߦಈΛߦ͏ɻ w ଴͍ͬͯͯ΋ߪങ΍ࢹௌͳͲͷ໨త͸ୡ੒͞Εͳ͍ɻ w ૬ޓਪનγεςϜ w ੵۃతʹೳಈతʹߦಈ͢ΔϢʔβ΋͍Ε͹ɼʮ޷ҙʯ͕ࣔ͞ΕΔͷΛ଴͕ͪͪͳडಈతͳ Ϣʔβ΋͍Δɻ w TVCKFDUଆͷϢʔβ͔Βࣔ͞ΕΔʮ޷ҙʯʹରͯ͠ϦΞΫγϣϯΛ͢Δ͚ͩͰ΋αʔϏεΛར༻͢Δ໨త͸ ୡ੒ՄೳͰ͋Δɻ w डಈతͳϢʔβ͕γεςϜ্ͰTVCKFDUଆͷϢʔβʹਪન͞Εͳ͍ͱɼ੒ޭମݧΛಘΒΕͳ͍͜ͱʹͳΔɻ

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©2020 Wantedly, Inc. ਪનͷ੒ޭ ‣ ਪનΛड͚ΔϢʔβ TVCKFDU ͱਪન͞ΕΔϢʔβ PCKFDU ͷ྆ํͷᅂ޷͕Ұகͯ͠ॳΊͯਪન͕੒ޭ͢Δɻ ਪનγεςϜʹର͢ΔϢʔβͷೝࣝ ‣ TVCKFDUଆͷϢʔβࣗ਎͕૬ޓਪનγεςϜͰ͋Δ͜ͱΛೝ্ࣝͨ͠ͰɼPCKFDUଆͷϢʔβͷ͜ͱΛߟ͑ͯߦಈ͢Δɻ Ϣʔβ͔Β໌ࣔతʹఏڙ͞ΕΔϓϩϑΟʔϧ΍ᅂ޷ʹ͍ͭͯͷ৘ใ ‣ Ϣʔβ͕ࣗ਎Ͱఏڙ͢Δ໌ࣔతͳϓϩϑΟʔϧ΍ᅂ޷৘ใ͕๛෋͕ͩɼͦΕΒ͕ਖ਼͍͠ͱ͸ݶΒͳ͍ɻ ϢʔβͷϥΠϑαΠΫϧ ‣ ϢʔβͷϥΠϑαΠΫϧ͕୹͘ɼϢʔβͷߦಈʹجͮ͘҉໧తͳϢʔβͷᅂ޷৘ใ͕ू·Γʹ͍͘ɻ ϢʔβͷγεςϜ಺ʹ͓͚Δߦಈͷ࢟੎ ‣ ೳಈతͳϢʔβͱडಈతͳϢʔβ͕͍ΔɻडಈతͳϢʔβ͸ਪન͞Εͳ͍ͱ੒ޭମݧΛಘΒΕͳ͍ɻ ૬ޓਪનγεςϜͷಛ௃΍՝୊

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©2020 Wantedly, Inc. ؔ࿈ݚڀطଘख๏ ✓ [RECON] (Pizzato 2010) RECON: A Reciprocal Recommender for Online Dating ‣ աڈʹ޷ҙΛࣔͨ͠૬खͷϢʔβʹڞ௨͢Δཁૉ͔ΒɼϢʔβ͝ͱͷ҉໧తͳᅂ޷৘ใʢetc. ମܕɼਖ਼֬ɼֶྺ…ʣΛநग़ɻ ‣ நग़ͨ͠ᅂ޷৘ใͱ૬खͷϢʔβͷϓϩϑΟʔϧͷҰக౓Λܭࢉ͢ΔίϯςϯπϕʔεͰ୯ํ޲ͷద߹౓Λද͢ Preference Score Λࢉग़ɻ ‣ ̎ͭͷ Preference Score ͔ΒAggregation Function(ௐ࿨ฏۉ)Ͱ૒ํ޲ͷద߹౓Λද͢ Reciprocal Preference Score Λࢉग़ɻ ✓ [RCF] (Xia 2015) Reciprocal Recommendation System for Online Dating ‣ ߦಈཤྺʹجͮ͘ϢʔβϕʔεͷڠௐϑΟϧλϦϯάʢk-ۙ๣ʣͰPreference Score Λࢉग़ɻ ‣ Aggregation Function ͸ௐ࿨ฏۉΛར༻ɻ ‣ RECON (Pizzato 2010) ͷੑೳΛେ෯ʹ௒͑Δɻ ✓ [LFRR](Neve 2019) Latent Factor Models and Aggregation Operator for Collaborative Filtering in Reciprocal Recommender Systems ‣ ߦಈཤྺʹج͖ͮ࡞੒ͨ͠ User-User ߦྻʹMatrix Factorization Λద༻ͯ͠ Preference Score Λࢉग़ɻ ‣ Aggregation Function ʹ͍ͭͯɼௐ࿨ฏۉҎ֎ͷؔ਺ʹ͍ͭͯ΋ൺֱ࣮ݧͨ͠ɻ ‣ ੑೳ͸ RCF (Xia 2015) ͱಉఔ౓͕ͩɼࣄલʹϞσϧΛֶश͓͚ͯ͠ΔͷͰߴ଎ɻ User A to User B Preference Score User B to User A Preference Score Reciprocal Preference Score Aggregation Function

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©2020 Wantedly, Inc. ਪનͷ੒ޭ ‣ ਪનΛड͚ΔϢʔβ TVCKFDU ͱਪન͞ΕΔϢʔβ PCKFDU ͷ྆ํͷᅂ޷͕Ұகͯ͠ॳΊͯਪન͕੒ޭ͢Δɻ User(Recruiter/Company) User(Job Seeker) w 8BOUFEMZ7JTJUʹ͓͚Δਪનͷ੒ޭͷఆٛ w ٻ৬ऀϢʔβʮ࿩Λฉ͖ʹߦ͖͍ͨʢԠืʣʯˠاۀϢʔβʮฦ৴ʯ w اۀϢʔβʮεΧ΢τʯˠٻ৬ऀϢʔβʮฦ৴ʯ w ຊ౰ʹϚονͨ͠ͷ͔Ͳ͏͔͸ɼ྆ऀΛΠϯλϏϡʔͰ΋͠ͳ͍ͱ෼͔Βͳ͍ʜɻ ࿩Λฉ͖ʹߦ͖͍ͨʢԠืʣ ฦ৴ User(Recruiter/Company) User(Job Seeker) ฦ৴ εΧ΢τ ˠϝοηʔδͷԟ෮ճ਺΍ฦ৴͢Δ·Ͱͷ࣌ؒΛߟྀͯ͠ɼਪનͷ੒ޭΛఆٛ͢Δɻ w ʮΧδϡΞϧͳձࣾ๚໰ʯΛఏڙ͢ΔαʔϏεނɼٻ৬ऀϢʔβͷϞνϕʔγϣϯ΋༷ʑ w FYʮࠓ͙͢స৬͍ͨ͠ʂʯɼʮ௚ۙͰస৬ͷ༧ఆ͸ͳ͍͚Ͳɼ໘നͦ͏ͳͱ͜Ζ͕͋Ε͹ͱΓ͋͑ͣ࿩Λฉ͖ʹ͍͖͍ͨʯ w ਪન͕͏·͍͔͘ͳ͔ͬͨͱ͖ͷωΨςΟϒͳମݧͷେ͖͞΋ϢʔβʹΑͬͯҟͳΔɻ ˠϞσϦϯάͷࡍʹϢʔβͷϞνϕʔγϣϯͳͲΛߟྀͨ͠޻෉Λ͢Δɻ

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©2020 Wantedly, Inc. ਪનγεςϜʹର͢ΔϢʔβͷೝࣝ w TVCKFDUଆͷϢʔβࣗ਎͕૬ޓਪનγεςϜͰ͋Δ͜ͱΛೝ্ࣝͨ͠ͰɼPCKFDUଆͷϢʔβͷ͜ͱΛߟ͑ͯߦಈ͢Δɻ w اۀϢʔβͷεΧ΢τ͸༗ྉͰ͋ΔͷͰɼ͜ͷ܏޲͕ڧ͍ͱߟ͑ΒΕΔɻ w ࣗࣾʹͱͬͯັྗతͰ΋ɼͦͷٻ৬ऀϢʔβ͕ઈରʹࣗࣾʹڵຯΛ࣋ͬͯ͘Εͳͦ͞͏ͳΒ͹εΧ΢τΛૹΔ͜ͱΛ᪳᪯͢Δɻ w ҰํͰɼΩϟϯϖʔϯͳͲͰແྉͰεΧ΢τΛૹΕΔ͜ͱ΋ɻ͜ͷࡍ͸͍ͭ΋ͱҧ͏ߦಈΛͱΔ͔΋ʜʁ w աڈʹૹ৴ͨ͠εΧ΢τ͔ΒاۀϢʔβͷᅂ޷৘ใΛ࡞੒͢Δࡍ͸ɼεΧ΢τͷछྨΛߟྀ͢Δɻ ˠաڈʹૹ৴ͨ͠εΧ΢τ͔ΒاۀϢʔβͷᅂ޷৘ใΛ࡞੒͢Δࡍ͸ɼεΧ΢τͷछྨΛߟྀͨ͠޻෉Λ͢Δɻ w ٻ৬ऀϢʔβ͸ൺֱత͜ͷ܏޲͕ऑ͍ͱߟ͑ΒΕΔɻ w ٻ৬ऀϢʔβ͕ԠืͰ͖Δ਺ʹ੍ݶͳͲ͸ͳ͍͠ɼҰൠతͳٻਓαΠτʹൺ΂ͯΧδϡΞϧʹԠืͰ͖ΔαʔϏεͰ͋ΔͨΊɼࣗ෼ ͷᅂ޷ͷΈʹج͍ͮͯͨ͘͞ΜԠืΛߦ͏܏޲ͷϢʔβ͕ଟʑ͍Δɻ w ҰํͰɼͬ͘͡Γͱ͓ޓ͍ͷᅂ޷͕Ϛον͍ͯ͠Δ͔Λߟ͑ͯগ਺ͷԠืΛ͍ͯ͠Δٻ৬ऀϢʔβ΋΋ͪΖΜଘࡏ͢Δɻ ˠաڈͷԠื৘ใ͔Βٻ৬ऀϢʔβͷᅂ޷৘ใΛ࡞੒͢Δࡍ͸ɼϢʔβͷԠืͷॏΈΛߟྀͨ͠޻෉Λ͢Δɻ

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©2020 Wantedly, Inc. Ϣʔβ͔Β໌ࣔతʹఏڙ͞ΕΔϓϩϑΟʔϧ΍ᅂ޷ʹ͍ͭͯͷ৘ใ w Ϣʔβ͕ࣗ਎Ͱఏڙ͢Δ໌ࣔతͳϓϩϑΟʔϧ΍ᅂ޷৘ใ͕๛෋͕ͩɼͦΕΒ͕ਖ਼͍͠ͱ͸ݶΒͳ͍ɻ w ٻ৬ऀϢʔβͷํ͕͜ͷ܏޲͕ڧ͍ɻ w αʔϏεొ࿥࣌ʹࣗ෼ͷڵຯͷ͋Δ৬छΛબ୒͢Δɻ w ࣮ࡍʹԠืͨ͠ืूͷ৬छͱҰக͍ͯ͠ͳ͍΋ͷ͕͚ͬ͜͏ͳׂ߹ଘࡏ͢Δɻ w ࠷ॳʹ৬छΛબ୒ͨ࣌͠఺Ͱ͸ɼࣗ෼͕ຊ౰ʹ΍Γ͍ͨ͜ͱ͕·ͩ͸͖ͬΓ͍ͯ͠ͳ͍ɻ w αʔϏεΛར༻͍ͯ͠Ζ͍ΖͳืूΛݟͨΓ࿩Λฉ͍͍ͯΔ͏ͪʹ͸͖ͬΓ͍ͯ͘͠ɻ ˠߦಈཤྺ͕஝ੵ͞ΕΔʹͭΕɼίϯςϯπϕʔε͔ΒߦಈཤྺϕʔεͷਪનʹҠߦ͍ͯ͘͠ɻ

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©2020 Wantedly, Inc. ϢʔβͷϥΠϑαΠΫϧ w ϢʔβͷϥΠϑαΠΫϧ͕୹͘ɼϢʔβͷߦಈʹجͮ͘҉໧తͳϢʔβͷᅂ޷৘ใ͕ू·Γʹ͍͘ɻ w ʮγΰτ୳͠ʯҎ֎ͷจ຺ͷػೳ w ʮ'FFEʢϒϩάػೳʣʯ΍ʮ.FFUVQʢΠϕϯτืूػೳʣʯͳͲͷɼΑΓΧδϡΞϧʹར༻Ͱ͖Δػೳ΋ఏڙ͍ͯ͠Δɻ w ͭͳ͕Γ؅ཧΞϓϦʮ8BOUFEMZ1FPQMFʯͱ͍͏ɼస৬ʹؔ܎ͳ͘೔ৗ͔Βར༻͢ΔΞϓϦ΋ఏڙ͍ͯ͠Δɻ ˠʮγΰτ୳͠ʯͱ͍͏Ұ࣌తͳ׆ಈҎ֎ͷจ຺ʹ͓͚Δ༷ʑͳߦಈཤྺ͕஝ੵ͞ΕΔɻ w ʮΧδϡΞϧͳձࣾ๚໰ʯͷαʔϏεͳͷͰɼʮγΰτ୳͠ʯͷจ຺Ͱ΋ͦ΋ͦ΋ϥΠϑαΠΫϧ͕௕͍ w స৬ҙཉͷߴ·Δલ͔ΒϢʔβ͕ొ࿥ͯ͘͠Ε͍ͯΔ͜ͱ΋ଟ͍ɻ w స৬ޙͰ͋ͬͨͱͯ͠΋ɼؾܰʹձࣾ๚໰͕Ͱ͖ΔαʔϏεʢΛ໨ࢦ͍ͯ͠Δʣɻ ˠʮγΰτ୳͠ʯͱ͍͏Ұ࣌తͳ׆ಈͷจ຺ʹ͓͍ͯ΋ൺֱత௕͍ظؒͷߦಈཤྺ͕஝ੵ͞ΕΔɻ ˠෳ਺ͷػೳͰͷཤྺΛ૊Έ߹ΘͤͯҙਤΛ἞ΈऔͬͨΓɼ࣌ؒͰॏΈ෇͚Λ͢ΔͳͲ޻෉͢Δɻ w ༷ʑͳจ຺ػೳ΍Ϟνϕʔγϣϯͷߴ͞Ͱར༻͞ΕΔαʔϏε͔ͩΒͦ͜ɼߦಈཤྺͷѻ͍͕೉͍͠ɻ w .FFUVQػೳͰاۀʹԠื͔ͨ͠Βͱ͍ͬͯɼͦͷاۀʹస৬ͷจ຺Ͱڵຯ͕͋Δͱ͸ݶΒͳ͍ɻ w ಉ͡ʮԠืʯͰ΋ɼస৬͍ͨ͠Ԡืͳͷ͔ͨͩڵຯ͕͋Δ͔Β࿩Λฉ͍ͯΈ͍ͨԠืͳͷ͔Ͱ͸શ͘ҙຯ͕ҧ͏ɻ

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©2020 Wantedly, Inc. ϢʔβͷγεςϜ಺ʹ͓͚Δߦಈͷ࢟੎ w ೳಈతͳϢʔβͱडಈతͳϢʔβ͕͍ΔɻडಈతͳϢʔβ͸ਪન͞Εͳ͍ͱ੒ޭମݧΛಘΒΕͳ͍ɻ w ʮԠืʯΛ͢Δ͜ͱ͕໨తͳϢʔβͱʮεΧ΢τʯΛड͚औΔ໨తͷϢʔβ͕ࠞࡏ͢Δɻ w ʮεΧ΢τʯΛड͚औΔ໨తͷडಈతͳٻ৬ऀϢʔβ͸اۀϢʔβͷεΧ΢τػೳͰਪન͞Εͳ͍ݶΓϚονϯά͸ੜ·Εͳ ͍ɻ w ҰํͰɼͨ͘͞ΜʮԠืʯͯ͘͠ΕΔೳಈతͳٻ৬ऀϢʔβͷํ͕৘ใ΋ͨ͘͞Μ͋ΔͨΊɼاۀϢʔβʹରͯ͠΋ൺֱత࣭ ͷߴ͍ਪન͕ՄೳͰ͋Δɻ ˠೳಈతͳϢʔβͱडಈతͳϢʔβ͕ਪનʹؚ·ΕΔׂ߹Λ޻෉͢Δɻ w डಈతͳϢʔβͷதʹ͸ɼͦ΋ͦ΋શ͘Ϟνϕʔγϣϯ͕ͳͯ͘ͲΜͳεΧ΢τΛड͚औͬͯ΋ฦ৴ ͠ͳ͍Α͏ͳϢʔβ΋Ұఆ਺ଘࡏ͢Δɻ w ਪન͕ѱ͍ͷ͔Ϟνϕʔγϣϯ͕௿ͯ͘ฦ৴͢Δؾ͕ͳ͍ͷ͔ͷ۠ผ͸೉͍͠ɻ ˠड͚औͬͨεΧ΢τ΁ͷฦ৴཰΍αʔϏε಺ͷΞΫςΟϒ཰ͳͲͰϞνϕʔγϣϯΛਪଌͯ͠׆༻͢Δɻ

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©2020 Wantedly, Inc. ਪનγεςϜͷߏங User(Recruiter/Company) User(Job Seeker) some models ༷ʑͳαʔϏεಛ༗ͷॲཧ Good Recommendations ༷ʑͳ޻෉ΛڽΒͨͨ͘͠͞Μͷಛ௃ྔ ࠓޙͷਓੜʹؔΘΔΑ͏ͳαʔϏεͰ͋ΔͨΊ 'BJSOFTTͷ͜ͱ΋ҙࣝͨ͠ಛ௃ྔબ୒ Ұఆͷઆ໌ੑ͕ٻΊΒΕΔ͜ͱΛ ߟྀͨ͠NPEFMͷબ୒ ޿ࠂ࿮ɼεύϜϢʔβɼॴଐͯ͠ ͍Δձࣾͷืू͸ग़͞ͳ͍ɼFUD ৽͍͠ϩδοΫͷ࡞੒࣌ʹ͸"#ςετ΍ *OUFSMFBWJOHͳͲͰΦϯϥΠϯςετΛ࣮ࢪ ৽͍͠ϩδοΫΛαʔϏεͰΦϯϥΠϯςετ͢Δલ ʹɼաڈσʔλΛ༻͍ͯΦϑϥΠϯςετΛ࣮ࢪ͢Δɻ ϓϩϑΟʔϧɼߦಈཤྺ ධՁࢦඪʹجͮ͘ఆྔධՁ͚ͩͰ͸ͳ͘ɼ࣮ࡍʹਓͷ໨Ͱ ݟ͓͔͍ͯ͠ਪનʹͳ͍ͬͯͳ͍ͷ͔ఆੑධՁ΋ߦ͏ɻ ϦϦʔεޙ΋ɼֶश͕͏·͘ߦΘΕ͍ͯΔ͔ɼ௥͍ͬͯΔ ࢦඪ͸ͲͷΑ͏ʹมԽ͍ͯ͠Δ͔ͳͲΛ؂ࢹ͢Δɻ ఆੑධՁ΋ఆظతʹߦ͏ɻࣾһ͕໨ͰݟͨΓɼ ੈͷதͷ੠ʢ5XJUUFSʣΛर͏ɻ

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©2020 Wantedly, Inc. ͓ΘΓʹ ΢ΥϯςουϦʔɿʮγΰτͰίίϩΦυϧͻͱΛ;΍͢ʯ w ʮγΰτ͸໘ന͍΋ͷͩʯͱ͍͏ߟ͑Λ౰ͨΓલʹɻ w ձࣾ๚໰ΞϓϦʮ8BOUFEMZ7JTJUʯͭͳ͕Γ؅ཧΞϓϦʮ8BOUFEMZ1FPQMFʯ ૬ޓਪનγεςϜɿʮαʔϏε಺ͷϢʔβΛޓ͍ʹਪન͢ΔγεςϜʯ w ैདྷͷਪનγεςϜͱҟͳΔ༷ʑͳಛ௃΍՝୊ɻ ‣ ਪનΛड͚ΔϢʔβ TVCKFDU ͱਪન͞ΕΔϢʔβ PCKFDU ͷ྆ํͷᅂ޷͕Ұகͯ͠ॳΊͯਪન͕੒ޭ͢Δɻ ‣ TVCKFDUଆͷϢʔβࣗ਎͕૬ޓਪનγεςϜͰ͋Δ͜ͱΛೝ্ࣝͨ͠ͰɼPCKFDUଆͷϢʔβͷ͜ͱΛߟ͑ͯߦಈ͢Δɻ ‣ Ϣʔβ͕ࣗ਎Ͱఏڙ͢Δ໌ࣔతͳϓϩϑΟʔϧ΍ᅂ޷৘ใ͕๛෋͕ͩɼͦΕΒ͕ਖ਼͍͠ͱ͸ݶΒͳ͍ɻ ‣ ϢʔβͷϥΠϑαΠΫϧ͕୹͘ɼϢʔβͷߦಈʹجͮ͘҉໧తͳϢʔβͷᅂ޷৘ใ͕ू·Γʹ͍͘ɻ ‣ ೳಈతͳϢʔβͱडಈతͳϢʔβ͕͍ΔɻडಈతͳϢʔβ͸ਪન͞Εͳ͍ͱ੒ޭମݧΛಘΒΕͳ͍ɻ ʮ8BOUFEMZ7JTJUʯʹ͓͚Δཧ૝ͷϚονϯάΛ࣮ݱ͢Δ૬ޓਪનγεςϜ w ૬ޓਪનγεςϜಛ༗ͷಛ௃΍՝୊Λߟྀͭͭ͠ɼ༷ʑͳ޻෉Λࢪ͢ɻ w 'BJSOFTT΍આ໌ੑͳͲɼߟ͑Δ͜ͱ͸ͨ͘͞Μ͋Δɻ w ΑΓΑ͍ਪનͷͨΊʹ͸ఆྔతͳධՁ͚ͩͰ͸ͳ͘ɼఆੑతͳධՁ΋ඞਢɻ

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©2020 Wantedly, Inc. 3FGT • (Pizzato 2010) Luiz Pizzato, Tomek Rej, Thomas Chung, Irena Koprinska, and Judy Kay. 2010. RECON: a reciprocal recommender for online dating. Proceedings of the fourth ACM conference on Recommender systems P. 207-214. • (Pizzato 2012) Luiz Pizzato, Tomasz Rej, Joshua Akehurst, Irena Koprinska, Kalina Yacef, and Judy Kay. 2012. Recommending people to people: the nature of reciprocal recommenders with a case study in online dating. User Model User-Adap Inter (2013) 23: 447. • (Xia 2015) Peng Xia, Benyuan Liu, Yizhou Sun, and Cindy Chen. 2015. Reciprocal Reciprocal recommendation System for Online Dating. Proceedings of the 2015 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining P. 234-241. • (Neve 2019) J Neve, I Palomares.2019. Latent Factor Models and Aggregation Operators for Collaborative Filtering in Reciprocal Recommender Systems Proceedings of the 13th ACM Conference on Recommender Systems, 219-227.