Search Results for author: Kazuyuki Hara

Found 6 papers, 0 papers with code

Theoretical Analysis of SIRVVD Model to Provide Insight on the Target Rate of COVID-19/SARS-CoV-2 Vaccination in Japan

no code implementations13 Feb 2022 Yuto Omae, Makoto Sasaki, Jun Toyotani, Kazuyuki Hara, Hirotaka Takahashi

We used the solution to determine the target rate of the vaccination for decreasing the infection numbers of the COVID-19 Delta variant (B. 1. 617) in Japan.

Effectiveness of the COVID-19 Contact-Confirming Application (COCOA) based on a Multi Agent Simulation

no code implementations30 Aug 2020 Yuto Omae, Jun Toyotani, Kazuyuki Hara, Yasuhiro Gon, Hirotaka Takahashi

In this study, we describe the simulator and the effectiveness of the app in various scenarios.

Computers and Society Multiagent Systems I.2.11; I.6.3; I.6.5; I.6.6

Analysis of Dropout in Online Learning

no code implementations9 Nov 2017 Kazuyuki Hara

This paper presents our investigation on the effect of dropout in online learning.

Object Recognition speech-recognition +1

Analysis of dropout learning regarded as ensemble learning

no code implementations20 Jun 2017 Kazuyuki Hara, Daisuke Saitoh, Hayaru Shouno

We find that the process of combining the neglected hidden units with the learned network can be regarded as ensemble learning, so we analyze dropout learning from this point of view.

Ensemble Learning Object Recognition +2

Statistical Mechanics of Node-perturbation Learning with Noisy Baseline

no code implementations20 Jun 2017 Kazuyuki Hara, Kentaro Katahira, Masato Okada

The value of the objective function for an unperturbed output is called a baseline.

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