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©2021 Wantedly, Inc. ࿦จ঺հ$SPTT.BSLFU 1SPEVDU3FDPNNFOEBUJPO H Bonab et al., 2021 https://dl.acm.org/doi/proceedings/10.1145/3459637 ΢ΥϯςουϦʔࣾ಺ษڧձdਪન࿦จಡΈձd! Higuchi Kokoro / @zerebom_3 


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©2021 Wantedly, Inc. Ṥޱ৺ )JHVDIJ,PLPSP ॴଐ8BOUFEMZ JOD 9![FSFCPN@ σʔλαΠΤϯςΟετͱͯ͠ਪનγεςϜͷਫ਼౓վળɾධՁɾ .-0QT·ΘΓͷ։ൃΛ͍ͯ͠·͢ ਖ਼͘͠πʔϧ΍ϓϩάϥϛϯάݴޠΛ࢖͍ɺϩόετʹϓϩμΫ τ։ൃ͢Δ͜ͱʹؔ৺͕͋Γ·͢ ࣗݾ঺հ

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©2023 Wantedly, Inc. ࿦จͷ֓ཁ ͲΜͳ΋ͷ ઌߦݚڀͱൺ΂ͯͲ͕͍͜͢͝ ٕज़΍ख๏ͷ؊͸Ͳ͜ Ͳ͏΍ͬͯ༗ޮͩͱݕূͨ͠ ࣍ʹಡΉ΂͖࿦จ͸ ҟͳΔϚʔέοτͷ৘ใΛ౷߹ɾ׆༻͠ɺޮ཰తͳਪનΛ ͢Δ$SPTT.BLFU3FDPNNFOEBUJPO $.3 ʹඞཁͳϞ σϧΞʔΩςΫνϟֶशํ๏σʔληοτΛఏҊ $SPTT.BSLFU1SPEVDU3FDPNNFOEBUJPO$*,. ΫϩεϚʔέοτਪનΛධՁͰ͖Δɺ࣮ੈքͷ 
 ΠϯλϥΫγϣϯʹج͍ͮͨେن໛σʔληοτ ʮ9.BSLFUʯΛ࡞੒ͨ͠ 
 ैདྷͷਪનख๏ʹର༷ͯ͠ʑͳ࣮ݧ৚݅Ͱ༗ҙʹਫ਼౓͕ߴ͍ ϝλϥʔχϯάͷछͰ͋Δ.".-Λ֦ுͨ͠ɺ 1SFUSBJO'PSL'JOF5VOFͷ4UFQ͔ΒͳΔ 
 '03&$ͱ͍͏ख๏ 9.BSLFUΛ༻͍ͯɺෳ਺ͷख๏ɾϚʔέοτͷ૊Έ߹ΘͤͰ ݕূɻ΄ͱΜͲͷέʔεͰ'03&$͕༗ҙʹਫ਼౓͕ߴ͍ $.3 $SPTT.BSLFU3FDTZT ʹؔ͢Δޙଓͷ࿦จɻ 84%.$61ͷ4PMVUJPO

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©2021 Wantedly, Inc. ݚڀͷഎܠ ࡢࠓɺ&$αΠτ͕ੈքதͷϚʔέοτʹରͯ͠঎඼Λൢച͢ΔΑ͏ʹ w Ϣʔβ͸ଟ͘ͷΞΠςϜɺϕϯμʔ͸ଟ͘ͷސ٬ʹϦʔνͰ͖ΔΑ͏ʹ w ҰํͰΞΠςϜ͕૿͑Δ͜ͱͰ৘ใաଟʹɻඞཁͳ΋ͷΛݟ͚ͭΔͷ͕ࠔ೉ʹ άϩʔόϧͳ&$Ͱ͸֤Ϛʔέοτʹ͋ͬͨਪનγεςϜ͕ඞཁ w จԽͷҧ͍ɾ஍ཧతͳಛੑͷҧ͍ɾग़లܭըͷҧ͍ɾݴޠͷҧ͍ʹΑΓߪങಛੑ΋มΘΔ w ྫ͑͹ɺεϚϗͷγΣΞ/P͸64Ͱ͸J1IPOFυΠπ͸4BNTVOH஍Ҭ͝ͱʹ࠷దԽͨ͠ํ͕ਫ਼౓ߴ $SPTT.BSLFU3FD4ZT $.3 ͕͋Ε͹શσʔλΛ׆༻Ͱ͖Δ͕ɺݚڀ͸·ͩ൒͹ w σʔλͷগͳ͍Ϛʔέοτͷਪનਫ਼౓Λɺଟ͍Ϛʔέοτͷ৘ใͰڧԽͰ͖Δ w ͨͩ͠ɺΫϩεϚʔέοτϨίϝϯσʔγϣϯΛධՁͰ͖Δσʔληοτ͕͋·Γͳ͍

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©2021 Wantedly, Inc. େن໛σʔληοτ 
 z9.BSLFUzͷߏங 
 ͱ෼ੳ ݚڀͷߩݙ '03&$ΞϧΰϦζϜͷ ఏҊ w ࣮ੈքͷ$SPTT.BSLFU$SPTT-JOHVBMͳେن໛σʔληοτ w $SPTT.BSLFUʹ͓͚ΔϢʔβߦಈͷ#JBTͷ෼ੳ w $SPTT.BSLFUʹ͓͍ͯ༏ΕͨੑೳΛൃش͢Δ 
 χϡʔϥϧωοτϫʔΫΞʔΩςΫνϟ w ϝλϥʔχϯάͷछͰ͋Δ.".-Λ֦ு

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©2021 Wantedly, Inc. ࣮ੈքͷ$SPTT.BSLFU$SPTT-JOHVBMͳେن໛σʔληοτ σʔλιʔε w d೥ͷϲࠃͷ"NB[POͷϨϏϡʔσʔλ w ࣗ࡞ͷΫϩʔϥʔͰऩू σʔλͷத਎ w छͷ঎඼ΧςΰϦʔ छͷݴޠΛؚΉ w 6TFS*UFN$BUFHPSZ3FWJFX d 9.BSLFUͷߏங "QQSPBDI

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©2021 Wantedly, Inc. ߪೖ਺ɾϨϏϡʔධՁ஋ͷ౷ܭྔ w ঎඼͝ͱͷϨϏϡʔ਺͸64͕ѹ౗తʹଟ͍ w ධՁ஋܏޲΋ࠃʹΑͬͯେ͖͘ҟͳΔ ֤Ϛʔέοτͷྨࣅ౓ w ΧςΰϦ಺ͷ঎඼ͷߪೖ਺ͰϕΫτϧԽ w $PT4JNͰྨࣅ౓ࢉग़ w υΠπ EF ɾϑϥϯε GS ɾӳࠃ VL ͷྨࣅ౓͕ߴ͍ 9.BSLFUͷ෼ੳ "QQSPBDI

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©2021 Wantedly, Inc. 1SF5SBJOJOH w શϚʔέοτͷσʔλΛ࢖ͬͯΞΠςϜͱϢʔβͷάϩʔόϧͳಛ௃Λ֫ಘ w .".- .PEFM"HOPTUJD.FUB-FBSOJOH Λ׆༻ 'PSLJOH w #BTFͱͳΔϚʔέοτͱ5BSHFUϚʔέοτͷ৘ใΛ౷߹ͤ͞Δ w .-1૚ͷ్த·ͰΛ'SFF[Fͯ͠ɺֶश 'JOF5VOJOH w 5BSHFUಛ༗ͷಛੑΛֶश͢Δ w 5BSHFUͷσʔλ͚ͩ࢖ͬͯɺ.BSLFU)FBE-BZFSͷΈΛֶश '03&$ΞϧΰϦζϜ֓ཁ "QQSPBDI $SPTT.BSLFUʹ͓͍ͯߴਫ਼౓Λग़ͤΔਪનγεςϜΞʔΩςΫνϟ

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©2021 Wantedly, Inc. '03&$ΞϧΰϦζϜ֓ཁ ̲ͅ ̲ͅ "QQSPBDI 1SF5SBJOJOH 'PSLJOH 'JOF5VOJOH

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©2021 Wantedly, Inc. .".- .PEFM"HOPTUJD.FUB-FBSOJOH w 'JOF5VOFͱҟͳΓɺ#BTFϞσϧ͕֤Ϛʔέοτͷ-PTTͷ߹ܭΛ࠷খԽ͢ΔΑ͏ʹֶश͞ΕΔ w w ֤Ϛʔέοτ .@J ͔ΒΠϯλϥΫγϣϯΛLͣͭऔಘ͠ɺͦΕͧΕֶशධՁޡࠩ఻ൖ͢Δ (.'ɾ.-1ɾ/.' w (.' (FOFSBMJ[FE.BUSJY'BDUPSJ[BUJPO w ϕΫτϧͷΞμϚʔϧੵઢܗม׵ w .-1 .VMUJ-BZFS1FSDFQUSPO w 'FFE'PXBSE3F-Vඇઢܗม׵ w /FVSBM.BUSJY'BDUPSJ[BUJPO w (.'ͱ.-1Λ$PODBUֶͯ͠श '03&$ΞϧΰϦζϜ1SFUSBJOৄղ "QQSPBDI

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©2021 Wantedly, Inc. 'PSLJOH w .-1ͷL૚·ͰΛ'SFF[Fͯ͠LdN૚ͱ.BSLFU)FBE-BZFSΛֶश w HMPCBMͳ৘ใͱNBSLFUTQFDJ fi Dͳ৘ใΛ͏·͘૊Έ߹ΘͤΔͨΊͷϑΣʔζ 'JOF5VOJOH w /.'·ͰΛ'SFF[Fֶͯ͠श w λʔήοτιʔεͷσʔληοτ͚ͩΛར༻͢Δ w NBSLFUTQFDJ fi Dͳ৘ใΛ֫ಘ͢Δ '03&$ΞϧΰϦζϜ'PSLJOH'JOF5VOJOHৄղ "QQSPBDI

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©2021 Wantedly, Inc. ࣮ݧ಺༰ w ιʔεɾλʔήοτϚʔέοτ΍ϞσϧΛ͍Ζ͍Ζม͑ͯ ਫ਼౓Λ֬ೝ %BUBTFU w 9.BSLFUͷ͏ͪͭͷ.BSLFUΛར༻ w ݅Ҏ্ϨϏϡʔΛ࣋ͭϢʔβɾΞΠςϜʹߜΔ $PNQBSFENFUIPET w (.' .-1 /.'4PVSDF.BSLFUΛ࢖Θͣɺ5BSHFU.BSLFUͷΈͰֶश w (.' .-1 /.'4PVSDFͱ5BSHFUΛ୯७ʹ$PODBU w %%5$%3$SPTT%PNBJO3FD4ZTͷख๏ 
 ೋͭͷυϝΠϯͷϕΫτϧΛ௚ަม׵ߦྻͰڮ౉͠ w .".-'03&$ͷ1SFUSBJO෦෼͚ͩར༻ w /.''03&$'03&$ͷ.-1(.'෦෼Λར༻͠ͳ͍7FS ࣮ݧઃܭ &WBM.FUSJD w O%$(!ͱ)JU3BUF! w 6TFS͕3FWJFXΛॻ͘͜ͱΛਖ਼ྫ w ͷαϯϓϦϯάͨ͠ΞΠςϜΛෛྫͱͨ͠ )ZQFS1BSBNFUFST w ӅΕ૚ͷ࣍ݩ΍MSΛௐ੔ w 7BMJEBUJPOσʔλΛ࢖ͬͯνϡʔχϯά w "EBNΛར༻

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©2021 Wantedly, Inc. $BUFHPSZ&MFDͷ࣮ݧ݁Ռ

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©2021 Wantedly, Inc. $BUFHPSZ&MFDͷ࣮ݧ݁Ռ 5BSHFU.BSLFU͚ͩͰֶशͨ݁͠Ռ 4PVSDFͳ͠ ࠷΋ਫ਼౓͕ߴ͍4PVSDF.BSLFUͰֶशͨ݁͠Ռ ֤4PVSDF.BSLFUͰֶशͨ݁͠Ռͷฏۉ 4PVSDF.BSLFUΛ64ͱࢦఆͯ͠ɺֶशͨ݁͠Ռ

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©2021 Wantedly, Inc. $BUFHPSZ&MFDͷ࣮ݧ݁Ռ ͢΂ͯͷϚʔέοτͰ Signle͸ਫ਼౓͕௿͍ SourceϚʔέοτΛར༻Ͱ͖Δͱ͖͸΄ͱΜͲͷέʔεͰFOREC͕༗ҙʹਫ਼౓͕ߴ͍

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©2021 Wantedly, Inc. Ϣʔβάϧʔϓɾֶशσʔλྔ͝ͱͷ࣮ݧ݁Ռ Cold-startͰ΋ͦ͏Ͱແͯ͘΋ 
 FORECͷਫ਼౓͕ߴ͍ TargetͷTrain͕๛෋ͳํ͕FOREC͸ڧ͍ 
 গͳ͍৔߹ɺSourceͷӨڹΛड͚͗͢Δ

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©2021 Wantedly, Inc. w 😆9.BSLFUศརͦ͏ɾ࢖ͬͯΈ͍ͨ w େن໛͔ͭɺ࣮σʔλͳͷͰɺධՁ͠΍ͦ͢͏ɻͨͩ͠ϨϏϡʔσʔλͳͷͰਖ਼ྫ͕͔ͳΓϔϏʔϢʔβʹภΔ w 😆.".-Λ࢖͍ɺιʔεϞσϧΛλʔήοτϚʔέοτͷ-PTTͷ࠷খԽʹԊΘͤΒΕΔ w 'JOF5VOFͰ͸λʔήοτϚʔέοτͷ͜ͱΛ஌Βͣʹ1SF5SBJO͞Εͯ͠·͏ͷͰ w 🤔Ծʹ࣮ӡ༻͢Δ৔߹ɺֶश࣌ؒ΍ӡ༻ίετ͸େ͖ͦ͏ w શσʔλֶशˠϞσϧͷϑϦʔζˠݸผͷϞσϧͷֶश1IBTF w %"(Ͱॻ͍ͨΒେมͳ͜ͱʹͳΓͦ͏ w 🤔'PSLJOHͷࡉ͔͍ӡ༻͕Θ͔Βͳ͍ w શσʔλͰֶश͢Δͷ͔ w .BSLFU)FBE-BZFS͸ֶश͢Δͷ͔ ಡΜͩײ૝

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©2021 Wantedly, Inc. άϩʔόϧͳ&$Ͱ͸֤Ϛʔέοτʹ͋ͬͨਪનγεςϜ͕ඞཁ w จԽͷҧ͍ɾ஍ཧతͳಛੑͷҧ͍ɾग़లܭըͷҧ͍ɾݴޠͷҧ͍ʹΑΓߪങಛੑ΋มΘΔ w $SPTT.BSLFU3FD4ZT $.3 ͕͋Ε͹શσʔλΛ׆༻Ͱ͖Δ͕ɺݚڀ͸·ͩ൒͹ $.3ͷධՁͷͨΊʹେن໛σʔληοτz9.BSLFUzͷߏஙͨ͠ w ΫϩεϚʔέοτϨίϝϯσʔγϣϯΛධՁͰ͖Δσʔληοτ͕͋·Γͳ͍ '03&$ΞϧΰϦζϜͷఏҊͨ͠ w ϝλϥʔχϯάͷछͰ͋Δ.".-Λ֦ு w 1SFUSBJO 'PSL 'JOF5VOFͷ4UFQΛܦͯιʔεϚʔέοτ৘ใΛ࣋ͪͭͭɺݸผͷϚʔέοτ΁࠷దԽ͢Δ ·ͱΊ