Philipp Hager

2025

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Unidentified and Confounded? Understanding Two-Tower Models for Unbiased Learning to Rank.
Philipp Hager|Onno Zoeter|Maarten de Rijke
Proceedings of the 2025 International ACM SIGIR Conference on Innovative Concepts and Theories in Information Retrieval, ICTIR 2025, Padua, Italy, 18 July 2025

2024

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Unbiased Learning to Rank Meets Reality: Lessons from Baidu's Large-Scale Search Dataset.
Philipp Hager|Romain Deffayet|Jean-Michel Renders|Onno Zoeter|Maarten de Rijke
Proceedings of the 47th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2024, Washington DC, USA, July 14-18, 2024
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Unbiased Learning to Rank: On Recent Advances and Practical Applications.
Shashank Gupta|Philipp Hager|Jin Huang|Ali Vardasbi|Harrie Oosterhuis
Proceedings of the 17th ACM International Conference on Web Search and Data Mining, WSDM 2024, Merida, Mexico, March 4-8, 2024

2023

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Report on the 1st Workshop on Generative Information Retrieval (Gen-IR 2023) at SIGIR 2023.
Gabriel Bénédict|Ruqing Zhang|Donald Metzler|Andrew Yates|Romain Deffayet|Philipp Hager|Sami Jullien
SIGIR Forum 2023 Volume 57 Issue 2
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Contrasting Neural Click Models and Pointwise IPS Rankers.
Philipp Hager|Maarten de Rijke|Onno Zoeter
Advances in Information Retrieval - 45th European Conference on Information Retrieval, ECIR 2023, Dublin, Ireland, April 2-6, 2023, Proceedings, Part I
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Recent Advancements in Unbiased Learning to Rank.
Shashank Gupta|Philipp K. Hager|Harrie Oosterhuis
Proceedings of the 15th Annual Meeting of the Forum for Information Retrieval Evaluation, FIRE 2023, Panjim, India, December 15-18, 2023
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An Offline Metric for the Debiasedness of Click Models.
Romain Deffayet|Philipp Hager|Jean-Michel Renders|Maarten de Rijke
Proceedings of the 46th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2023, Taipei, Taiwan, July 23-27, 2023
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Recent Advances in the Foundations and Applications of Unbiased Learning to Rank.
Shashank Gupta|Philipp Hager|Jin Huang|Ali Vardasbi|Harrie Oosterhuis
Proceedings of the 46th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2023, Taipei, Taiwan, July 23-27, 2023