no code implementations • 23 Jan 2024 • Atsutomo Yara, Yoshikazu Terada
In the logistic regression, we usually consider the maximum likelihood estimator, and the excess risk is the expectation of the Kullback-Leibler (KL) divergence between the true and estimated conditional class probabilities.
3 code implementations • 3 Nov 2022 • Daniel J. W. Touw, Patrick J. F. Groenen, Yoshikazu Terada
Convex clustering is a modern method with both hierarchical and $k$-means clustering characteristics.
1 code implementation • 14 Oct 2019 • Jen Ning Lim, Makoto Yamada, Wittawat Jitkrittum, Yoshikazu Terada, Shigeyuki Matsui, Hidetoshi Shimodaira
An approach for addressing this is via conditioning on the selection procedure to account for how we have used the data to generate our hypotheses, and prevent information to be used again after selection.
no code implementations • 25 Jul 2019 • Yoshikazu Terada, Ryoma Hirose
In this paper, using the framework for analyzing the generalization error developed in Suzuki (2018), we derive a fast learning rate for deep neural networks with more general activation functions.
no code implementations • 12 Dec 2013 • Yoshikazu Terada
In high-dimension, low-sample size (HDLSS) data, it is not always true that closeness of two objects reflects a hidden cluster structure.