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Future-Dependent Value-Based Off-Policy Evaluation in POMDPs


Jul 26, 2022
Masatoshi Uehara, Haruka Kiyohara, Andrew Bennett, Victor Chernozhukov, Nan Jiang, Nathan Kallus, Chengchun Shi, Wen Sun


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Doubly Robust Off-Policy Evaluation for Ranking Policies under the Cascade Behavior Model


Feb 03, 2022
Haruka Kiyohara, Yuta Saito, Tatsuya Matsuhiro, Yusuke Narita, Nobuyuki Shimizu, Yasuo Yamamoto

* WSDM2022 

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Accelerating Offline Reinforcement Learning Application in Real-Time Bidding and Recommendation: Potential Use of Simulation


Sep 17, 2021
Haruka Kiyohara, Kosuke Kawakami, Yuta Saito

* SimuRec workshop at RecSys2021 

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Evaluating the Robustness of Off-Policy Evaluation


Aug 31, 2021
Yuta Saito, Takuma Udagawa, Haruka Kiyohara, Kazuki Mogi, Yusuke Narita, Kei Tateno

* Accepted at RecSys2021 

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Constrained Generalized Additive 2 Model with Consideration of High-Order Interactions


Jun 05, 2021
Akihisa Watanabe, Michiya Kuramata, Kaito Majima, Haruka Kiyohara, Kensho Kondo, Kazuhide Nakata


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