研究と出版物

私の研究は、レコメンダーシステム、マーケティングデータサイエンス、ユーザー獲得の最適化を中心としており、特にモバイルゲーム業界での実践的な応用に重点を置いています。

現在の研究テーマ

  • モバイルゲーム向けのマーケティングデータサイエンスとユーザー獲得最適化
  • iOSプライバシーフレームワーク向けの収益帰属手法(特にSKAN Conversion Values)
  • 機械学習技術を用いたマーケティング予算とクリエイティブの最適化

過去の研究

  • グループ意思決定のための文脈対応型レコメンダーシステム
  • グループ推薦アルゴリズムとナレッジグラフに関する博士課程の研究

出版物一覧

2025

Hallucination Level of Artificial Intelligence Whisperer: Case Speech Recognizing Pantterinousut Rap Song

Ismo Horppu, Frederick Ayala, Erlin Gulbenkoglu

arXiv preprint arXiv:2506.16174 (2025)

AIASRHallucinationFaster WhispererSpeech-to-TextFinnish rapPantterinousut
2022

Show me the Money: Measuring Marketing Performance in F2P Games using Apple's App Tracking Transparency Framework

Frederick Ayala-Gómez, Ismo Horppu, Erlin Gülbenkoğlu, Vesa Siivola, Balázs Pejó

Proceedings of the ACM AdKDD Workshop 2022

MarketingF2PApp Tracking TransparencyiOSRevenue Attribution
2021

Revenue attribution on iOS 14 using conversion values in f2p games

F. Ayala-Gomez, I. Horppu, E. Gulbenkoglu, V. Siivola, B. Pejó

arXiv preprint arXiv:2102.08458 (2021)

MarketingF2PApp Tracking TransparencyiOSRevenue Attribution

Automatic classification of games using support vector machine

Ismo Horppu, Antti Nikander, Elif Buyukcan, Jere Mäkiniemi, Amin Sorkhei, Frederick Ayala-Gómez

arXiv preprint arXiv:2105.05674 (2021)

GamesClassificationSupport Vector MachineMachine Learning
2019

Session recommendation via recurrent neural networks over fisher embedding vectors

D. Kelen, B. Daróczy, F. Ayala-Gómez, A. Ország, A. Benczúr

Sensors 19 (16), 3498 (2019)

Recommender SystemsSession RecommendationRecurrent Neural NetworksFisher Embedding
2018

Global citation recommendation using knowledge graphs

F. Ayala-Gomez, B. Daróczy, A. Benczúr, M. Mathioudakis, A. Gionis

Journal of Intelligent & Fuzzy Systems 34 (5), 3089-3100 (2018)

Recommender SystemsGlobal Citation RecommendationKnowledge GraphsLearning to Rank

Top-k context-aware tour recommendations for groups

F. Ayala-Gómez, B. Keniş, P. Karagöz, A. Benczúr

Proceedings of the Mexican International Conference on Artificial Intelligence, MICAI 2018

Recommender SystemsTop-k Context-Aware Tour RecommendationsGroups

Infrequent item-to-item recommendation via invariant random fields

B. Daróczy, F. Ayala-Gómez, A. Benczúr

Proceedings of the Mexican International Conference on Artificial Intelligence, MICAI 2018

Recommender SystemsInfrequent Item-to-Item RecommendationInvariant Random Fields
2017

Where could we go? Recommendations for groups in location-based social networks

F. Ayala-Gómez, B.Z. Daróczy, M. Mathioudakis, A. Benczúr, A. Gionis

Proceedings of the 2017 ACM Web Science Conference, ACM WebSci 2017

Recommender SystemsRecommendations for GroupsLocation-Based Social Networks
2014

RecSys Challenge 2014: an ensemble of binary classifiers and matrix factorization

Róbert Pálovics, Frederick Ayala-Gómez, Balázs Csikota, Bálint Daróczy, Levente Kocsis, Dominic Spadacene, András A Benczúr

Proceedings of the 2014 Recommender Systems Challenge, 13-18 (2014)

Recommender SystemsRecSys ChallengeBinary ClassifiersMatrix Factorization