Opening position

Opening Specially Appointed Researcher Position (ClOSED)

This is an announcement of a specially appointed researcher position on the statistical mechanics of deep neural networks. (CLOSED)


"Statisticam Mechanical Informatics of Deep Neural Networks" 2021-2023 Grant-in-Aid for Challenging Research (Pioneering), MEXT, Japan.

Research Topic:

The purpose of the project is to develop a theoretical framework of machine-learning by deep neural networks (DNN) based on statistical mechanics and uncover its mechanism hidden in the black boxes. In particular, we seek to investigate the spatial organization of learning inside DNN suggested by our recent work [1] and elucidate the impact of these on the efficiency of machine learning by theoretical and numerical approaches. Furthermore, we also wish to explore implications of the outcome of the research on intimately related problems in the physics of glass-jamming systems, statistical mechanical informatics, and biology (for example, [2,3]).


[1] H. Yoshino,"From complex to simple : hierarchical free-energy landscape renormalized in deep neural networks", SciPost Physics Core2, 005(2020).
[2] H. Yoshino,"Disorder-free spin glass transitions and jamming in exactly solvable mean-field models", SciPost Physics 4, 040 (2018).
[3] Research topics of our group.


The following information is also available at JREC-in.

Number of positions:



Cybermedia Center


National University Corporation Osaka University


Ph D.

Term of employment:

From Oct 1, 2021 (as early as possible after this date), to March 31, 2022. After this period, it may be renewed on a yearly basis, up to March 31, 2024, at the longest.

Probationary Period:

3 months.

Work Location:

3 Cybermedia center, Toyonaka campus, Osaka Univ.

Working Pattern:

5 days per week (Monday - Friday (except holidays)), 6 hours per day 30 hours per week) (negotiable).

Working hours, break time:

Ex. 10:00-16:45 (break 12:15-13:00) (negotiable).


Saturday, Sunday and National hoidays.


2,469 - JPY per hour. It will be decided according to the responsibilities assigned based on the applicant's qualifications. (Based on the "70. Salary Regulations for National University Corporation Osaka University Part-time Staff").


Overtime Allowance, Commuting Allowance.


Health Insurance, Employees' Pension Insurance, Employment Insurance, and Industrial Accident Compensation Insurance.

Starting date:

Between the date of adoption and April, 2022.


Please send a pdf file which contains, (1) CV, (2) List of publications (including preprints), (3) Summary of previous researches and statements of research interests in this project (about 2pages in A4 size), (4) Contact information of two persons who can provide opinions on the applicant, to the following. Please include "Application to specially appointed researcher position" in the title of the email. Online interviews may be organized additionally.

Application Deadline:

The application will be closed as soon as the candidates are decided.

Contact information:

Hajime Yoshino
Associate Professor
Cybermedia Center, Osaka University
Toyonaka, Osaka 560-0043, Japan
yoshino "at"

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