Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
論文紹介: Improving Implicit Feedback-Based Recomme...
Search
Shuhei Goda
November 22, 2023
Technology
0
640
論文紹介: Improving Implicit Feedback-Based Recommendation through Multi-Behavior Alignment(Xin Xin et al., 2023)
ウォンテッドリー社内勉強会~推薦論文読み会~
https://wantedly.connpass.com/event/301781/
Shuhei Goda
November 22, 2023
Tweet
Share
More Decks by Shuhei Goda
See All by Shuhei Goda
Turing × atmaCup #18 - 1st Place Solution
hakubishin3
0
890
ジョブマッチングサービスにおける相互推薦システムの応用事例と課題
hakubishin3
3
950
とある事業会社にとっての Kaggler の魅力
hakubishin3
8
2.6k
課題の解像度が荒かったことで意図した改善ができなかった話
hakubishin3
3
1k
Wantedly におけるマッチング体験を最大化させるための推薦システム
hakubishin3
4
1.2k
Recommendation Industry Talks #1 Opening
hakubishin3
1
390
会社訪問アプリ「Wantedly Visit」での シゴトに関する興味選択機能と推薦改善
hakubishin3
0
640
Feedback Prize - English Language Learning における擬似ラベルの品質向上の取り組み
hakubishin3
0
1k
ウォンテッドリーにおける推薦システムのオフライン評価の仕組み
hakubishin3
7
7k
Other Decks in Technology
See All in Technology
Snowflake Summit 2025 データエンジニアリング関連新機能紹介 / Snowflake Summit 2025 What's New about Data Engineering
tiltmax3
0
310
PHP開発者のためのSOLID原則再入門 #phpcon / PHP Conference Japan 2025
shogogg
4
750
【5分でわかる】セーフィー エンジニア向け会社紹介
safie_recruit
0
26k
Amazon ECS & AWS Fargate 運用アーキテクチャ2025 / Amazon ECS and AWS Fargate Ops Architecture 2025
iselegant
16
5.6k
強化されたAmazon Location Serviceによる新機能と開発者体験
dayjournal
2
210
Observability в PHP без боли. Олег Мифле, тимлид Altenar
lamodatech
0
350
“社内”だけで完結していた私が、AWS Community Builder になるまで
nagisa53
1
390
Javaで作る RAGを活用した Q&Aアプリケーション
recruitengineers
PRO
1
110
HiMoR: Monocular Deformable Gaussian Reconstruction with Hierarchical Motion Representation
spatial_ai_network
0
110
Witchcraft for Memory
pocke
1
350
AIの最新技術&テーマをつまんで紹介&フリートークするシリーズ #1 量子機械学習の入門
tkhresk
0
140
AWS CDK 実践的アプローチ N選 / aws-cdk-practical-approaches
gotok365
6
750
Featured
See All Featured
Designing for Performance
lara
609
69k
The MySQL Ecosystem @ GitHub 2015
samlambert
251
13k
Git: the NoSQL Database
bkeepers
PRO
430
65k
How to Think Like a Performance Engineer
csswizardry
24
1.7k
The Cost Of JavaScript in 2023
addyosmani
51
8.5k
How GitHub (no longer) Works
holman
314
140k
Save Time (by Creating Custom Rails Generators)
garrettdimon
PRO
31
1.2k
Faster Mobile Websites
deanohume
307
31k
4 Signs Your Business is Dying
shpigford
184
22k
XXLCSS - How to scale CSS and keep your sanity
sugarenia
248
1.3M
Performance Is Good for Brains [We Love Speed 2024]
tammyeverts
10
930
Fashionably flexible responsive web design (full day workshop)
malarkey
407
66k
Transcript
©2023 Wantedly, Inc. จհɿImproving Implicit Feedback-Based Recommendation through Multi-Behavior Alignment
ΥϯςουϦʔࣾษڧձ~ਪનจಡΈձ~ Nov. 22 2023 - ߹ాपฏʢΥϯςουϦʔגࣜձࣾʣ Xin Xin et al., 2023 https://dl.acm.org/doi/10.1145/3539618.3591697
©2023 Wantedly, Inc. ࣗݾհ ໊લɿ ߹ా पฏ(Shuhei Goda) ॴଐͱׂɿ
ɾΥϯςουϦʔגࣜձࣾ(2019~) ɾਪનνʔϜϦʔμʔ ɾML Tech Lead & Product Manager Kaggle Tierɿ Kaggle Competitions Grandmaster @hakubishin3 @jy_msc @shuheigoda
©2023 Wantedly, Inc. αϚϦʔ ෳͷߦಈใΛΞϥΠϝϯτͯ͠ਅͷᅂΛਪఆ͢Δख๏ΛఏҊͨ͠จ • ϞνϕʔγϣϯɿෳͷߦಈσʔλΛֶशʹ͏͜ͱͰɺ֤ߦಈσʔλͷܽΛิ͍͍ͨ • ՝ɿ •
ߦಈσʔλͷؒʹΪϟοϓ͕͋Δ • औಘ͕༰қͳߦಈσʔλ΄ͲϊΠζ͕େ͖͍ • ղܾํ๏ɿ • ϢʔβʔͷਅͷᅂΛજࡏมͱ͠ɺͦΕʹج͍ͮͨߦಈ݁Ռ͕؍ଌมͱΈͳ͢ • જࡏมΛڬΜͰɺෳͷߦಈσʔλΛదʹΞϥΠϝϯτ͢Δ
©2023 Wantedly, Inc. ຊݚڀͷϞνϕʔγϣϯ ҉తϑΟʔυόοΫΛ׆༻ͯ͠ɺߴਫ਼ͳਪનΛߦ͍͍ͨ • ҉తϑΟʔυόοΫʢimplicit feedbackʣͷྫɿΫϦοΫɺΧʔτͷՃɺߪೖ • ໌ࣔతϑΟʔυόοΫʢexplicit
feedbackʣͱҟͳΓɺ҉తϑΟʔυόοΫ σʔλΛऔಘ͘͢͠ɺଟ͘ͷਪનγεςϜ͜ΕΛͱʹֶश͞Ε͍ͯΔ ໌ࣔత ҉త σʔλྔ গͳ͍ ଟ͍ σʔλͷਖ਼֬͞ ਖ਼֬ ෆਖ਼֬ ະධՁͱωΨςΟ ϒͷ۠ผ ໌֬ ෆ໌֬ ʰਪનγεςϜ࣮ફೖʱhttps://www.oreilly.co.jp/books/9784873119663
©2023 Wantedly, Inc. ຊݚڀͷϞνϕʔγϣϯ ҰൠతʹΫϦοΫσʔλ͚ͩΛ͏͜ͱ͕ଟ͍ • ΫϦοΫσʔλ༷ʑͳ҉తϑΟʔυόοΫͷதͰಛʹ༰қʹೖखՄೳ • ͔͠͠ɺϊΠζόΠΞε͕େ͖͘ɺਖ਼֬ͳᅂͷਪఆ͕͍͠
©2023 Wantedly, Inc. ຊݚڀͷϞνϕʔγϣϯ ΫϦοΫσʔλͰͳ͘ɺߪೖσʔλ͚ͩΛར༻͢Δͷʁ • ਪનγεςϜͰϢʔβʔʹଅਐ͍ͤͨ͞ߦಈʢeίϚʔεͰ͋ΕߪೖʣΛֶशʹ ͑ΔͷͰ͋ΕɺͦΕʹӽͨ͜͠ͱͳ͍ •
͔͠͠ɺσʔλͷεύʔεੑʹىҼ͢Δίʔϧυελʔτ͕ੜ͍͢͡
©2023 Wantedly, Inc. ຊݚڀͷϞνϕʔγϣϯ ෳͷछྨͷߦಈΛֶशʹར༻ͯ͠ɺͦΕͧΕͷܽΛิ͍͍ͨ • ิॿతͳߦಈσʔλ(ΫϦοΫ)Λར༻͢Δ͜ͱͰɺεύʔεͳλʔήοτߦಈ(ߪೖ)ͷ ༧ଌੑೳΛڧԽͤ͞Δ ΫϦοΫ
ߪೖ σʔλྔ ଟ͍ গͳ͍ ϊΠζͷେ͖͞ େ͖͍ খ͍͞ ίʔϧυελʔτ ൃੜ͠ʹ͍͘ ൃੜ͍͢͠
©2023 Wantedly, Inc. ղܾ͍ͨ͠՝ᶃ ෳछྨͷߦಈσʔλͷؒʹΪϟοϓ͕ଘࡏ͢Δ • ྫ͑ɺϢʔβʔ͕ΫϦοΫ͕ͨ͠ߪೖ͠ͳ͔ͬͨͳͲɺ֤ʑͷϊΠζʹΑͬͯੜ͡Δ • φΠʔϒʹʮߦಈͷछྨ͝ͱʹϢʔβʔͷΈΛֶशͨ͠ޙͦΕͧΕΛΈ߹ΘͤΔʯ
͜ͱΛͨ͠ͱͯ͠ɺҰ؏ͨ͠ϢʔβʔͷਅͷᅂΛਪఆ͢Δ͜ͱͦ͠͏
©2023 Wantedly, Inc. ղܾ͍ͨ͠՝ᶄ ิॿతͳߦಈσʔλͰ͋ΔΫϦοΫσʔλͷϊΠζ͕ඇৗʹେ͖͍ • ϊΠζͷେ͖͞Λߟྀ͓͔ͯ͠ͳ͍ͱɺ͜ΕͷӨڹ͕ࢧతʹͳͬͯ͠·͏
©2023 Wantedly, Inc. ઌߦݚڀͲ͏͍ͯͨ͠ʁ ෳछྨͷߦಈΛ׆༻͢Δઌߦݚڀɺ՝ᶃᶄʹରԠͰ͖͍ͯͳ͍ͱओு • ߦಈͷछྨΛҟछͷϊʔυʹஔ͖͑ͯάϥϑͰղ͍ͨΓɺϚϧνλεΫֶशΛͨ͠Γ • σʔλͷΪϟοϓΛߟྀͰ͖͍ͯͳ͍ͷͰɺීวతͳᅂදݱΛ࡞Ε͍ͯͳ͍ͷͰ •
ิॿใͷϊΠζͷେ͖͞ΛߟྀͰ͖͍ͯͳ͍ͷͰɺޮՌతͳิॿʹͳ͍ͬͯͳ͍ͷͰ
©2023 Wantedly, Inc. ຊݚڀͰࢧ͍࣋ͨ͠Ծઆ ෳछྨ͋ΔߦಈͦΕͧΕϢʔβʔͷਅͷᅂʹج͍͍ͮͯΔ ਅͷᅂ P(R_t) ΫϦοΫ P(R_g) ߪೖ
P(R_f) ʴϊΠζͳͲ ʴϊΠζͳͲ
©2023 Wantedly, Inc. Ծઆʹج͍ͮͨख๏ͷఏҊ જࡏม(ਅͷᅂ)ΛڬΜͰɺෳछྨͷߦಈσʔλΛΞϥΠϝϯτ͢Δ • ਅͷᅂΛֶशͯ͠ਪʹ͏ • ֤ߦಈσʔλͱͷؒͷKL-divͷ࠷খԽͱ֤ߦಈσʔλͷ࠷େԽΛࢦ͢ ֶशɿ
ਪɿ ਪ࣌ʹP(R_f)Λ͍ͬͯΔͷܦݧతʹྑ͔͔ͬͨΒ
©2023 Wantedly, Inc. ֶश࣌ͷ ֶश҆ఆੑΛߴ͘͢ΔͨΊʹKL-divͷܭࢉͰࣄલֶशࡁΈϞσϧΛ͏ • ࣄલʹߦಈͷछྨ͝ͱʹϞσϧΛֶश͓ͤͯ͘͞ ͷՕॴҎ֎ͷϞσϧֶ͕शର
©2023 Wantedly, Inc. ࣮ݧઃܭ ࣮ݧͰݕূ͍ͨ͜͠ͱʁ(RQ) • ఏҊख๏ͷੑೳطଘͷෳߦಈϞσϧΑΓ্͍ͯ͠Δ͔ʁ • ఏҊख๏ͷੑೳطଘͷσϊΠδϯάख๏ΑΓ্͍ͯ͠Δ͔ʁ
©2023 Wantedly, Inc. ࣮ݧઃܭ ઃܭ߲ • σʔληοτɿECαʔϏεͷΦʔϓϯσʔλʢΫϦοΫΛิॿɺߪೖΛλʔήοτͱ͢Δʣ • ධՁࢦඪɿRecall@k ͱ
NDCG@k (k=10, 20)ɺ྆ऀͱ͕ߴ͍΄Ͳྑ͍݁Ռ • ϕʔεϥΠϯɿϋΠύϥධՁσʔληοτ͝ͱʹඍௐ
©2023 Wantedly, Inc. ࣮ݧ݁Ռᶃ طଘͷෳߦಈϞσϧΑΓ༧ଌਫ਼্͕͍ͯ͠Δ͜ͱΛ֬ೝ ୯Ұ ෳ
©2023 Wantedly, Inc. ࣮ݧ݁Ռᶄ طଘͷσϊΠδϯάख๏ΑΓ༧ଌਫ਼্͕͍ͯ͠Δ͜ͱΛ֬ೝ ୯Ұ ୯Ұ σ ϊ Π
δ ϯ ά ख ๏
©2023 Wantedly, Inc. αϚϦʔ ෳͷߦಈใΛΞϥΠϝϯτͯ͠ਅͷᅂΛਪఆ͢Δख๏ΛఏҊͨ͠จ • ϞνϕʔγϣϯɿෳͷߦಈσʔλΛֶशʹ͏͜ͱͰɺ֤ߦಈσʔλͷܽΛิ͍͍ͨ • ՝ɿ •
ߦಈσʔλͷؒʹΪϟοϓ͕͋Δ • औಘ͕༰қͳߦಈσʔλ΄ͲϊΠζ͕େ͖͍ • ղܾํ๏ɿ • ϢʔβʔͷਅͷᅂΛજࡏมͱ͠ɺͦΕʹج͍ͮͨߦಈ݁Ռ͕؍ଌมͱΈͳ͢ • જࡏมΛڬΜͰɺෳͷߦಈσʔλΛదʹΞϥΠϝϯτ͢Δ