activity
20152025
most citedDo We Need Zero Training Loss After Achieving Zero Training Error?

60 citations · 64 across the 8 of their papers we have counts for

collaborators

9 papers

cs.LG2025

CapBencher: Give Your LLM Benchmark a Built-in Alarm for Test-Set Overfitting

Takashi Ishida, Thanawat Lodkaew, Ikko Yamane

Publishing a large language model (LLM) benchmark (especially its ground-truth answers) on the Internet risks contaminating future LLMs and enabling evaluation gaming: it may be un…

math.ST2025

Convergence rate for Nearest Neighbour matching: geometry of the domain and higher-order regularity

Simon Viel, Lionel Truquet, Ikko Yamane

Estimating some mathematical expectations from partially observed data and in particular missing outcomes is a central problem encountered in numerous fields such as transfer learn…

stat.ML2023

Nearest Neighbor Sampling for Covariate Shift Adaptation

François Portier, Lionel Truquet, Ikko Yamane

Many existing covariate shift adaptation methods estimate sample weights given to loss values to mitigate the gap between the source and the target distribution. However, estimatin…

cs.LG2022★ 4 cited

Is the Performance of My Deep Network Too Good to Be True? A Direct Approach to Estimating the Bayes Error in Binary Classification

Takashi Ishida, Ikko Yamane, Nontawat Charoenphakdee +2

There is a fundamental limitation in the prediction performance that a machine learning model can achieve due to the inevitable uncertainty of the prediction target. In classificat…

stat.ML2021

Mediated Uncoupled Learning: Learning Functions without Direct Input-output Correspondences

Ikko Yamane, Junya Honda, Florian Yger +1

Ordinary supervised learning is useful when we have paired training data of input and output . However, such paired data can be difficult to collect in practice. In this pap…

cs.LG2020

A One-step Approach to Covariate Shift Adaptation

Tianyi Zhang, Ikko Yamane, Nan Lu +1

A default assumption in many machine learning scenarios is that the training and test samples are drawn from the same probability distribution. However, such an assumption is often…

cs.LG2020★ 60 cited

Do We Need Zero Training Loss After Achieving Zero Training Error?

Takashi Ishida, Ikko Yamane, Tomoya Sakai +2

Overparameterized deep networks have the capacity to memorize training data with zero \emph{training error}. Even after memorization, the \emph{training loss} continues to approach…

stat.ML2018

Uplift Modeling from Separate Labels

Ikko Yamane, Florian Yger, Jamal Atif +1

Uplift modeling is aimed at estimating the incremental impact of an action on an individual's behavior, which is useful in various application domains such as targeted marketing (a…

stat.ML2015

Regularized Multi-Task Learning for Multi-Dimensional Log-Density Gradient Estimation

Ikko Yamane, Hiroaki Sasaki, Masashi Sugiyama

Log-density gradient estimation is a fundamental statistical problem and possesses various practical applications such as clustering and measuring non-Gaussianity. A naive two-step…