1 citations · 1 across the 8 of their papers we have counts for
8 papers
Interpretable clustering via optimal multi-way decision trees
Hayato Suzuki, Shunnosuke Ikeda, Naoki Nishimura +1
Clustering is a fundamental unsupervised learning technique for uncovering data structures to facilitate knowledge discovery and decision-making. While clustering accuracy is cruci…
Subset Selection for Stratified Sampling in Online Controlled Experiments
Haru Momozu, Yuki Uehara, Naoki Nishimura +6
Online controlled experiments, also known as A/B testing, are the digital equivalent of randomized controlled trials for estimating the impact of marketing campaigns on website vis…
Robust personalized pricing under uncertainty of purchase probabilities
Shunnosuke Ikeda, Naoki Nishimura, Noriyoshi Sukegawa +1
This paper is concerned with personalized pricing models aimed at maximizing the expected revenues or profits for a single item. While it is essential for personalized pricing to p…
Strategic Coupon Allocation for Increasing Providers' Sales Experiences in Two-sided Marketplaces
Koya Ohashi, Sho Sekine, Deddy Jobson +4
In a two-sided marketplace, network effects are crucial for competitiveness, and platforms need to retain users through advanced customer relationship management as much as possibl…
Balancing Immediate Revenue and Future Off-Policy Evaluation in Coupon Allocation
Naoki Nishimura, Ken Kobayashi, Kazuhide Nakata
Coupon allocation drives customer purchases and boosts revenue. However, it presents a fundamental trade-off between exploiting the current optimal policy to maximize immediate rev…
Fast solution to the fair ranking problem using the Sinkhorn algorithm
Yuki Uehara, Shunnosuke Ikeda, Naoki Nishimura +8
In two-sided marketplaces such as online flea markets, recommender systems for providing consumers with personalized item rankings play a key role in promoting transactions between…
Robust portfolio optimization model for electronic coupon allocation
Yuki Uehara, Naoki Nishimura, Yilin Li +6
Currently, many e-commerce websites issue online/electronic coupons as an effective tool for promoting sales of various products and services. We focus on the problem of optimally…
Covariate Ordered Systematic Sampling as an Improvement to Randomized Controlled Trials
Deddy Jobson, Li Yilin, Naoki Nishimura +3
The Randomized Controlled Trial (RCT) or A/B testing is considered the gold standard method for estimating causal effects. Fisher famously advocated randomly allocating experiment…