論文紹介 Balancing Relevance and Discovery to Inspire Customers in the IKEA App

࿦จ঺հ #BMBODJOH3FMFWBODFBOE%JTDPWFSZ UP*OTQJSF$VTUPNFSTJOUIF*,&""QQ 3FD4ZT࿦จಡΈձ ੢ྛ޹ !IBHJOP

"CPVUNF ✦ 4PGUXBSF&OHJOFFSBU70:"(&(3061 ✦ ޿ࠂ഑৴ϓϩμΫτͷ։ൃΛ͍ͯ͠·͢ ✦ 3FD4ZTॳࢀՃ ✦ 5XJUUFS!IBHJOP

঺հ͢Δ࿦จ

಺༰ ✦ *,&"ΞϓϦͷ*OTQJSBUJPOBM'FFEʹ͓͚ΔϦίϝϯυํࡦʹ#BOEJU 'FFECBDLϩά࢖ͬͨϙϦγʔֶशΞϓϩʔνΛద༻ͨ͠ ✦ Ϣʔβʔ͕ΠϯεϐϨʔγϣϯΛಘΒΕΔ༷ʹDPVOUFSGBDUVBMSJTL NJOJNJ[BUJPOQSJODJQMF<>ʹج͍ͮͯํࡦΛֶशͨ͠ ✦ "#ςετͷ݁ՌɺڠௐϑΟϧλϦϯάʹΑΔํࡦͱൺֱͯ͠ΫϦοΫ཰ ্͕ঢͨ͠
✦ ϖʔύʔʹ͸ଛࣦؔ਺΋࣮ݧ݁Ռ΋΄ͱΜͲॻ͍ͯͳ͔ͬͨͷͰɺ͜ͷൃ ද͸ޱ಄ൃද಺༰Λ࢖ͬͯิ׬͍ͯ͠·͢

*OTQJSBUJPOBM'FFE ✦ Ϣʔβʔ͸༷ʑͳ෦԰ͷλΠϓʹ͋ΘͤͯՈ۩͕ ഑ஔ͞ΕͨΠϝʔδ͕ӾཡͰ͖Δ ✦ ͜ͷϑΟʔυ͸Ϣʔβʔʹؔ࿈͕͋ΓΠϯεϐ ϨʔγϣϯΛ༩͑Δ΋ͷʹ͍ͨ͠ɻڻ͖ͷཁૉ͕ ٻΊΒΕΔɻ 3FMFWBODFBOE%JTDPWFSZUP*OTQJSF
✦ ؔ࿈ੑʹಛԽͨ͠Ϧίϝϯυػೳ͸طʹ͋Δ

$POUFYUVBMCBOEJUTXJUICBUDIMFBSOJOHGSPN MPHHFECBOEJUGFFECBDL ✦ Ͳͷը૾Λදࣔ͢Δ͔ ✦ $POUFYUVBM#BOEJUTͰܾΊΔ ✦ $POUFYUVBM#BOEJUTͷߦಈબ୒ϙϦγʔͷֶश ✦ όονͰ΍Δ
㱠ΦϯϥΠϯֶश ✦ #BOEJU'FFECBDLϩάΛ࢖ͬͯ܇࿅ ✦ CBTFEPOUIFQSJODJQMFPGDPVOUFSGBDUVBMSJTLNJOJNJ[BUJPO<> ✦ $PVOUFSGBDUVBM-FBSOJOH

✦ ߦಈ ✦ ը૾Λબ୒ͯ͠දࣔ͢Δࣄ ✦ ใु ✦ දࣔͨ͠ը૾͕ΫϦοΫ͞ΕΔ͔Ͳ͏͔㱨\ ^ ✦
ίϯςΩετ ✦ ΞϓϦ্ͷϢʔβʔࣗ਎ͷաڈͷ;Δ·͍ *OTQJSBUJPOBM'FFEͷ#BOEJUઃఆ

$POUFYUVBMCBOEJUT ܁Γฦ͠ҙࢥܾఆ໰୊ʹ͓͍ͯྦྷੵใुͷ࠷େԽΛૂ͏ํࡦͷͳ͔Ͱ΋ ϥ΢ϯυຖͷίϯςΩετ৘ใΛར༻ͯ͠ٻΊͨείΞʹैͬͯߦಈΛબ୒͢ Δ΋ͷɻ؍ଌͨ͠ใुΛ࢖ͬͯείΞϦϯάϞσϧΛߋ৽͍ͯ͘͠ɻ είΞϦϯάϞσϧʹઢܗϞσϧΛ࠾༻ͨ͠-JO6$#<>ͳͲɺ༷ʑͳํࡦ͕ఏҊ͞Ε͍ͯΔ

ࢀߟ-JO6$#<> ϥ΢ϯυUʹ͓͚ΔߦಈBͷ είΞใुͷظ଴஋ ඪ४ภࠩºЋ είΞ͕࠷େͷߦಈΛ࣮ߦ ύϥϝʔλߋ৽

#BUDIMFBSOJOHGSPNMPHHFECBOEJUGFFECBDL ✦ CBOEJUGFFECBDLϩάΛ࢖ֶͬͨश ✦ աڈͷߦಈબ୒ϙϦγʔʹΑΔόΠΞεͷิਖ਼͕ඞཁ ✦ ਪનγεςϜͷϩά͸جຊతʹCBOEJUGFFECBDL ✦ ΦϯϥΠϯֶशͰ͸ͳ͍ཧ༝͸ಛʹઆ໌͕ແ͔͕ͬͨ ✦
ϦΫΤετྔ͕ଟ͍αʔϏεͰόϯσΟοτΞϧΰϦζϜΛ࢖͏৔߹͸ ࿦จͷखଓ͖௨ΓʹύϥϝʔλΛஞ࣍ߋ৽͢Δέʔε͸গͳ͍ͱࢥ͏ ✦ ΦϯϥΠϯֶश͸ӡ༻͕େม

ิ଍#BOEJU'FFECBDLϩάΛ࢖ֶͬͨश ✦ #BOEJU'FFECBDLϩάΛར༻ͨ͠৽͍͠ߦಈબ୒ϙϦγʔͷੑೳධՁΛߦͳ͏ ख๏͸ଘࡏ͢Δ ˠ0⒎1PMJDZ&WBMVBUJPO *OWFSTF1SPQFOTJUZ4DPSJOH %PVCMZ3PCVTU ʜ ✦
ੑೳධՁ஋͕࠷େʹͳΔ༷ʹߦಈબ୒ϙϦγʔΛֶश͢Ε͹ྑ͍ ✦ ߦಈΛBɺίϯςΩετΛYɺใुΛSͱͯ͠*14ͰධՁ͢Δ৔߹͸ КOFXͷ*14$PVOUFSGBDUVBM&TUJNBUPS

ߦಈબ୒ϙϦγʔͷֶश ϙϦγʔК͕ίϯςΩετYʹରͯ͠ߦಈZΛબͿ֬཰ ܏޲είΞ ΛК ZcY ใुΛЎͱ͓͘ɻաڈͷϙϦγʔКͷ܏޲είΞͱ؍ଌͨ͠ใुΛར༻ͯ͠ɺ৽ͨͳ ϙϦγʔКВΛֶश͢Δ ޱ಄ൃදεϥΠυ͔Βഈआ ͜ͷ··Ͱ͸෼ࢄͷ໰୊͕ग़ΔͷͰɺ<>Λࢀߟʹ͍͔ͭ͘ͷ޻෉ΛऔΓ͍Ε͍ͯΔͱͷઆ
໌͕͋ͬͨ

ଛࣦؔ਺ͷ௚ײతͳղऍ ใु͕ಘΒΕͨߦಈͰಛʹաڈͷϙϦγʔͷ܏޲είΞ͕௿͍ߦಈͷ܏޲είΞ্͕ ͕Ε͹ϩε͕Լ͕Δɻͭ·Γ͋·Γબ୒͠ͳ͔͕ͬͨΫϦοΫ͕ಘΒΕͨߦಈΛଟ͘ બͿ༷ʹֶश͢Δɻ ޱ಄ൃදεϥΠυ͔Βഈआ

ଛࣦؔ਺͸Ͳ͔͜Βདྷͨͷ͔ ޱ಄ൃදεϥΠυͷࣜ͸3FGFSFODFʹ͋Δ 4XBNJOBUIBOΒ$PVOUFSGBDUVBMSJTL NJOJNJ[BUJPO-FBSOJOHGSPNMPHHFECBOEJU GFFECBDLz *$.- <>ʹ͓͚ΔఏҊख๏ ͷಋग़ͷং൫ʹ͋Δ*14ϕʔεͷࣜɻ ͳͷͰ࣮ࡍʹ࢖͍ͬͯΔ
ͷ͸<>ͷఏҊख๏ͷࣜ ͩͱࢥΘΕΔ

$PVOUFSGBDUVBMSJTLNJOJNJ[BUJPO-FBSOJOHGSPNMPHHFE CBOEJUGFFECBDL *$.- <> ✦ *14ͷ෼ࢄ༝དྷͷΤϥʔΛό΢ϯυ͢ΔVOCJBTFEFTUJNBUPSͰ͋Δ $3.$PVOUFSGBDUVBM3JTL.JOJNJ[BUJPOΛఏҊɺ෼ࢄΛਖ਼ଇԽ߲ʹ ✦ $3.Λֶश͢Δ܇࿅ΞϧΰϦζϜ10&.ͷఏҊ

ิ଍%PVCMZSPCVTUNFUIPEGPSDPVOUFSGBDUVBM MFBSOJOH Yuan, Bowen, et al. "Improving ad click prediction
by considering non-displayed events." Proceedings of the 28th ACM International Conference on Information and Knowledge Management. 2019.

ΦϯϥΠϯධՁ ✦ ධՁࢦඪ$53 ✦ ͷ޲্͕֬ೝͰ͖ͨ ✦ ڠௐϑΟϧλϦϯάϕʔεͷख๏ͱൺֱ ✦ ڠௐϑΟϧλϦϯά͸3FMFWBODFॏࢹ ✦
౰ॳͷ໨త͸ୡ੒Ͱ͖ͨ ✦ આ໌͸ແ͔͕ͬͨʮࠓ·Ͱʹਪન͠ͳ͔ͬͨΞΠςϜΛଟ͘ਪન͢ΔࣄͰΫ ϦοΫ͕૿͑ͨʯˠ*OTQJSBUJPOΛ༩͑Δࣄ͕Ͱ͖ͨͱղऍͰ͖ͦ͏ ✦ ΫϦοΫ͕ݮ͍ͬͯͳ͍ˠϏδωεࢦඪΛᆝଛ͍ͯ͠ͳ͍

౰೔ͷ࣭ٙԠ౴ͷൈਮ 2%PVCMZ3PCVTUͰ͸ͳ͘*14ʹͨ͠ͷ͸Կނ ಛʹΦϑϥΠϯධՁͰ෼ࢄ͕໰୊ʹͳΒͳ͔͔ͬͨ "%PVCMZ3PCVTU͸ߟ͑ͳ͔ͬͨɻ͔͠͠෼ࢄΛ཈͑ΔͨΊʹ܏޲εί ΞͷΫϦοϐϯά౳Λߦͳͬͨ 2"#ςετΛि͚ؒͩ૸Βͤͨ͜ͱͰɺϢʔβʔ͕׳Ε਌͠Μͩ " ͱ͸ҧͬ
͍ͯͨͨΊ # ͷ$53͕ߴ͘ͳͬͨՄೳੑ͸͋Δ͔ "ͦͷޙ΋Ұ؏ͯ͠ߴ͍$53Λ͍ࣔͯ͠Δ͔ΒɺͦΕ͸ແ͍ͱߟ͍͑ͯΔ 2୳ࡧΛߦͳ͏ࣄͰΫϦοΫͷݮগ͸ΈΒΕͳ͔͔ͬͨ "શ͘ٯͰ૿Ճͨ͠

ࢀߟจݙ <>5ÓUI #BMÂ[T 4BOEIZB4BDIJEBOBOEBO BOE&NJM4+SHFOTFO#BMBODJOH3FMFWBODFBOE %JTDPWFSZUP*OTQJSF$VTUPNFSTJOUIF*,&""QQ'PVSUFFOUI"$.$POGFSFODFPO 3FDPNNFOEFS4ZTUFNT <>-J -JIPOH FUBM"DPOUFYUVBMCBOEJUBQQSPBDIUPQFSTPOBMJ[FEOFXTBSUJDMF
SFDPNNFOEBUJPO1SPDFFEJOHTPGUIFUIJOUFSOBUJPOBMDPOGFSFODFPO8PSMEXJEFXFC <>4XBNJOBUIBO "EJUI BOE5IPSTUFO+PBDIJNT$PVOUFSGBDUVBMSJTLNJOJNJ[BUJPO-FBSOJOH GSPNMPHHFECBOEJUGFFECBDL*OUFSOBUJPOBM$POGFSFODFPO.BDIJOF-FBSOJOH <>:VBO #PXFO FUBM*NQSPWJOHBEDMJDLQSFEJDUJPOCZDPOTJEFSJOHOPOEJTQMBZFE FWFOUT1SPDFFEJOHTPGUIFUI"$.*OUFSOBUJPOBM$POGFSFODFPO*OGPSNBUJPOBOE ,OPXMFEHF.BOBHFNFOU

論文紹介 Balancing Relevance and Discovery to Inspire Customers in the IKEA App

論文紹介 Balancing Relevance and Discovery to Inspire Customers in the IKEA App

Takashi Nishibayashi

More Decks by Takashi Nishibayashi

Other Decks in Research

Featured

Transcript

࿦จ঺հ #BMBODJOH3FMFWBODFBOE%JTDPWFSZ UPOTQJSF$VTUPNFSTJOUIF,&""QQ 3FD4ZT࿦จಡΈձ ੢ྛ޹ !IBHJOP

"CPVUNF ✦ 4PGUXBSF&OHJOFFSBU70:"(&(3061 ✦ ޿ࠂ഑৴ϓϩμΫτͷ։ൃΛ͍ͯ͠·͢ ✦ 3FD4ZTॳࢀՃ ✦ 5XJUUFS!IBHJOP

঺հ͢Δ࿦จ

OTQJSBUJPOBM'FFE ✦ Ϣʔβʔ͸༷ʑͳ෦԰ͷλΠϓʹ͋ΘͤͯՈ۩͕ ഑ஔ͞ΕͨΠϝʔδ͕ӾཡͰ͖Δ ✦ ͜ͷϑΟʔυ͸Ϣʔβʔʹؔ࿈͕͋ΓΠϯεϐ ϨʔγϣϯΛ༩͑Δ΋ͷʹ͍ͨ͠ɻڻ͖ͷཁૉ͕ ٻΊΒΕΔɻ 3FMFWBODFBOE%JTDPWFSZUPOTQJSF

$POUFYUVBMCBOEJUTXJUICBUDIMFBSOJOHGSPN MPHHFECBOEJUGFFECBDL ✦ Ͳͷը૾Λදࣔ͢Δ͔ ✦ $POUFYUVBM#BOEJUTͰܾΊΔ ✦ $POUFYUVBM#BOEJUTͷߦಈબ୒ϙϦγʔͷֶश ✦ όονͰ΍Δ

✦ ߦಈ ✦ ը૾Λબ୒ͯ͠දࣔ͢Δࣄ ✦ ใु ✦ දࣔͨ͠ը૾͕ΫϦοΫ͞ΕΔ͔Ͳ͏͔㱨\ ^ ✦

ࢀߟ-JO6$#<> ϥ΢ϯυUʹ͓͚ΔߦಈBͷ είΞใुͷظ଴஋ ඪ४ภࠩºЋ είΞ͕࠷େͷߦಈΛ࣮ߦ ύϥϝʔλߋ৽

#BUDIMFBSOJOHGSPNMPHHFECBOEJUGFFECBDL ✦ CBOEJUGFFECBDLϩάΛ࢖ֶͬͨश ✦ աڈͷߦಈબ୒ϙϦγʔʹΑΔόΠΞεͷิਖ਼͕ඞཁ ✦ ਪનγεςϜͷϩά͸جຊతʹCBOEJUGFFECBDL ✦ ΦϯϥΠϯֶशͰ͸ͳ͍ཧ༝͸ಛʹઆ໌͕ແ͔͕ͬͨ ✦

ิ଍#BOEJU'FFECBDLϩάΛ࢖ֶͬͨश ✦ #BOEJU'FFECBDLϩάΛར༻ͨ͠৽͍͠ߦಈબ୒ϙϦγʔͷੑೳධՁΛߦͳ͏ ख๏͸ଘࡏ͢Δ ˠ0⒎1PMJDZ&WBMVBUJPO *OWFSTF1SPQFOTJUZ4DPSJOH %PVCMZ3PCVTU ʜ ✦

ଛࣦؔ਺ͷ௚ײతͳղऍ ใु͕ಘΒΕͨߦಈͰಛʹաڈͷϙϦγʔͷ܏޲είΞ͕௿͍ߦಈͷ܏޲είΞ্͕ ͕Ε͹ϩε͕Լ͕Δɻͭ·Γ͋·Γબ୒͠ͳ͔͕ͬͨΫϦοΫ͕ಘΒΕͨߦಈΛଟ͘ બͿ༷ʹֶश͢Δɻ ޱ಄ൃදεϥΠυ͔Βഈआ

ଛࣦؔ਺͸Ͳ͔͜Βདྷͨͷ͔ ޱ಄ൃදεϥΠυͷࣜ͸3FGFSFODFʹ͋Δ 4XBNJOBUIBOΒ$PVOUFSGBDUVBMSJTL NJOJNJ[BUJPO-FBSOJOHGSPNMPHHFECBOEJU GFFECBDLz $.- <>ʹ͓͚ΔఏҊख๏ ͷಋग़ͷং൫ʹ͋Δ14ϕʔεͷࣜɻ ͳͷͰ࣮ࡍʹ࢖͍ͬͯΔ

$PVOUFSGBDUVBMSJTLNJOJNJ[BUJPO-FBSOJOHGSPNMPHHFE CBOEJUGFFECBDL $.- <> ✦ 14ͷ෼ࢄ༝དྷͷΤϥʔΛό΢ϯυ͢ΔVOCJBTFEFTUJNBUPSͰ͋Δ $3.$PVOUFSGBDUVBM3JTL.JOJNJ[BUJPOΛఏҊɺ෼ࢄΛਖ਼ଇԽ߲ʹ ✦ $3.Λֶश͢Δ܇࿅ΞϧΰϦζϜ10&.ͷఏҊ

ิ଍%PVCMZSPCVTUNFUIPEGPSDPVOUFSGBDUVBM MFBSOJOH Yuan, Bowen, et al. "Improving ad click prediction

ΦϯϥΠϯධՁ ✦ ධՁࢦඪ$53 ✦ ͷ޲্͕֬ೝͰ͖ͨ ✦ ڠௐϑΟϧλϦϯάϕʔεͷख๏ͱൺֱ ✦ ڠௐϑΟϧλϦϯά͸3FMFWBODFॏࢹ ✦

౰೔ͷ࣭ٙԠ౴ͷൈਮ 2%PVCMZ3PCVTUͰ͸ͳ͘*14ʹͨ͠ͷ͸Կނ ಛʹΦϑϥΠϯධՁͰ෼ࢄ͕໰୊ʹͳΒͳ͔͔ͬͨ "%PVCMZ3PCVTU͸ߟ͑ͳ͔ͬͨɻ͔͠͠෼ࢄΛ཈͑ΔͨΊʹ܏޲εί ΞͷΫϦοϐϯά౳Λߦͳͬͨ 2"#ςετΛि͚ؒͩ૸Βͤͨ͜ͱͰɺϢʔβʔ͕׳Ε਌͠Μͩ " ͱ͸ҧͬ

ࢀߟจݙ <>5ÓUI #BMÂ[T 4BOEIZB4BDIJEBOBOEBO BOE&NJM4+SHFOTFO#BMBODJOH3FMFWBODFBOE %JTDPWFSZUPOTQJSF$VTUPNFSTJOUIF,&""QQ'PVSUFFOUI"$.$POGFSFODFPO 3FDPNNFOEFS4ZTUFNT <>-J -JIPOH FUBM"DPOUFYUVBMCBOEJUBQQSPBDIUPQFSTPOBMJ[FEOFXTBSUJDMF