no code implementations • EcomNLP (COLING) 2020 • Ryo Shimura, Shotaro Misawa, Masahiro Sato, Tomoki Taniguchi, Tomoko Ohkuma
Previous laboratory studies have indicated that the ratings recorded by these systems differ from the actual evaluations of the users, owing to the influence of historical ratings in the system.
no code implementations • 14 Jul 2021 • Masahiro Sato
In contrast to conventional interleaving methods, we measure the outcomes of both items on an interleaved list and items not on the interleaved list, since the causal effect is the difference between outcomes with and without recommendations.
no code implementations • 17 Dec 2020 • Masahiro Sato, Sho Takemori, Janmajay Singh, Qian Zhang
In this work, we unify traditional neighborhood recommendation methods with the matching estimator, and develop robust ranking methods for the causal effect of recommendations.
no code implementations • 23 Oct 2020 • Sho Takemori, Masahiro Sato
The RKHS bandit problem (also called kernelized multi-armed bandit problem) is an online optimization problem of non-linear functions with noisy feedback.
no code implementations • 23 Oct 2020 • Masahiro Sato, Jacques Garrigue
Werner's set-theoretical model is one of the simplest models of CIC.
Logic in Computer Science Logic
no code implementations • 11 Aug 2020 • Masahiro Sato, Sho Takemori, Janmajay Singh, Tomoko Ohkuma
This paper proposes an unbiased learning framework for the causal effect of recommendation.
no code implementations • 1 Jun 2020 • Sho Takemori, Masahiro Sato, Takashi Sonoda, Janmajay Singh, Tomoko Ohkuma
Thus, motivated by diversified retrieval considering budget constraints, we introduce a submodular bandit problem under the intersection of $l$ knapsacks and a $k$-system constraint.