no code implementations • 26 Dec 2022 • Kazuhiko Shinoda, Takahiro Hoshino
This chapter develops the general framework for estimation and inference on CEFR, which allows the use of flexible machine learning for infinite-dimensional nuisance parameters.
no code implementations • 11 Sep 2021 • Kazuhiko Shinoda, Takahiro Hoshino
However, model selection and hyperparameter tuning for the direct least squares estimator can be unstable in practice since it is defined as a solution to the minimax problem.
no code implementations • 1 Sep 2021 • Masaki Mitsuhiro, Takahiro Hoshino
In the analysis of observational data in social sciences and businesses, it is difficult to obtain a "(quasi) single-source dataset" in which the variables of interest are simultaneously observed.
no code implementations • 26 Nov 2020 • Tomoki Toyabe, Yasuhiro Hasegawa, Takahiro Hoshino
In this paper, we consider a novel framework of positive-unlabeled data in which as positive data survival times are observed for subjects who have events during the observation time as positive data and as unlabeled data censoring times are observed but whether the event occurs or not are unknown for some subjects.
1 code implementation • 21 Aug 2019 • Daisuke Moriwaki, Komei Fujita, Shota Yasui, Takahiro Hoshino
In online display advertising, selecting the most effective ad creative (ad image) for each impression is a crucial task for DSPs (Demand-Side Platforms) to fulfill their goals (click-through rate, number of conversions, revenue, and brand improvement).