Momoko Hayamizu

Momoko Hayamizu

J-GLOBAL         Last updated: Nov 11, 2019 at 14:28
Momoko Hayamizu
The Institute of Statistical Mathematics
Department of Statistical Modeling
Job title
Assistant Professor
M.D.(The University of Tokyo), Ph.D.(The Graduate University for Advanced Studies (SOKENDAI))
Other affiliation
Japan Science and Technology Agency (JST) PRESTO


My research interest lies in the field of combinatorics and its application. I am particularly interested in the interface between discrete mathematics and biology. In the past few years I have been working on biological issues, such as evolution and cellular differentiation, from a mathematical perspective.

Research Areas


Academic & Professional Experience

Apr 2017
Assistant Professor, The Institute of Statistical Mathematics
Apr 2017
Assistant Professor, Department of Statistical Science, School of Multidisciplinary Sciences, The Graduate University for Advanced Studies
Oct 2016
JST PRESTO Researcher in the area of Collaborative Mathematics for Real World Issues
Apr 2014
Mar 2017
Research Assistant, Research Center for Statistical Machine Learning, The Institute of Statistical Mathematics
Nov 2013
Mar 2014
Technical assistant, Research Center for Statistical Machine Learning, The Institute of Statistical Mathematics


Apr 2014
Mar 2017
Department of Statistical Science, School of Multidisciplinary Sciences, The Graduate University for Advanced Studies
Apr 2006
Mar 2010
Faculty of Medicine, The University of Tokyo
Apr 2004
Mar 2006
College of Arts and Sciences, The University of Tokyo

Committee Memberships

Mar 2019
Feb 2020
The Mathematical Society of Japan  Local Delegate

Awards & Honors

Jun 2019
Best presentation award at the 2019 Joint Meeting of JSIAM Activity Groups, The Japan Society for Industrial and Applied Mathematics (JSIAM)
'A structure theorem for tree-based networks and its application to phylogenetic tree inference'
Mar 2017
Student Prize, The Institute of Statistical Mathematics
Jul 2015
Anita Borg Scholarship Asia Pacific (APAC), Google

Published Papers

Momoko Hayamizu, Kazuhisa Makino
arXiv:1904.12432 [math.CO]      Apr 2019
'Tree-based' phylogenetic networks provide a mathematically-tractable model for representing reticulate evolution in biology. Such networks consist of an underlying 'support tree' together with arcs between the edges of this tree. However, a tree-...
Momoko Hayamizu
arXiv:1811.05849 [math.CO]      Nov 2018
Attempting to recognize a tree inside a phylogenetic network is a fundamental undertaking in evolutionary analysis. Therefore, the concept of "tree-based" phylogenetic networks, which was introduced by Francis and Steel, has attracted much attenti...
Momoko Hayamizu, Kenji Fukumizu
Discrete Applied Mathematics   226 51-57   Jul 2017   [Refereed]
Momoko Hayamizu
Journal of Theoretical Biology   396 204-206   May 2016   [Refereed]
Momoko Hayamizu, Hiroshi Endo, Kenji Fukumizu
IEEE/ACM Transactions on Computational Biology and Bioinformatics (TCBB)   14(2) 468-471   Apr 2016   [Refereed]
Momoko Hayamizu, Katharina T. Huber, Vincent Moulton, Yukihiro Murakami
arXiv:1908.01524 [math.CO]      Aug 2019

Conference Activities & Talks

次世代のデータ解析技術をつくる離散数学 [Invited]
Momoko Hayamizu
Math for Innovation Symposium, Kyushu University   3 Jun 2019   IMI, Kyushu University
A structure theorem for tree-based phylogenetic networks and its algorithmic applications [Invited]
Momoko Hayamizu
Combinatorics Seminar, Institute of Mathematics, Academia Sinica   19 Apr 2019   Institute of Mathematics, Academia Sinica
Tree-based network の構造定理と系統樹推定に関する諸問題への応用 [Invited]
Momoko Hayamizu
2019 Joint Meeting of JSIAM Activity Groups, The Japan Society for Industrial and Applied Mathematics (JSIAM)   4 Mar 2019   JSIAM
A structure theorem for tree-based phylogenetic networks and its applications [Invited]
Momoko Hayamizu
The 17th Japan-Korea Workshop on Algebra and Combinatorics   20 Jan 2019   
Momoko Hayamizu
応用数学合同研究集会2018   14 Dec 2018   

Research Grants & Projects

Japan Science and Technology Agency (JST): PRESTO
Project Year: Oct 2019 - Mar 2023    Investigator(s): Momoko Hayamizu
Collaborative research on phylogenetic networks
London Mathematical Society: Financial Support for in Pairs - Scheme 4 Grants
Project Year: Jul 2019 - Aug 2019    Investigator(s): Katharina Huber
Discrete geometrical modelling of biological processes and its medical applications
Japan Science and Technology Agency (JST): PRESTO
Project Year: Oct 2016 - Mar 2020    Investigator(s): Momoko Hayamizu

Other Academic Activities

Apr 2019   Visitor
Institute of Statistical Science, Academia Sinica (Hosted by Prof. Hsien-Kuei Hwang)
Sep 2018   Organiser
Mar 2017   Visiting Fellow
School of Computing, Engineering and Mathematics at Western Sydney University (Hosted by Prof. Andrew Francis)
Sep 2016   Involvement in other research projects
Member of Statistics Group, JST CREST Project 'Topological data analysis for new descriptors on soft matters' (Director: Yasuaki Hiraoka)
Advances in Applied Mathematics
Journal of Mathematical Biology
Journal of Combinatorial Optimization
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Sep 2017   Organiser-in-Chief
The 1st JST Workshop on Mathematical Open Problems

Teaching Experience