Fujiwara Lab.
Department of Socio-Economic Information Science,
Graduate Schoolf of Information Sciences, Tohoku University
Embedded Files
Members
Members
Jiang Kunyuan, Master's program
jiangkunyuan@se.is.tohoku.ac.jp
408
Yukihiro Shobu, Master's program
shobu.yukihiro.q7@dc.tohoku.ac.jp
407
Kota Kodaira, Master's program
kodaira.kota.s4@dc.tohoku.ac.jp
408
Graduate Student Recruitment
Graduate Student Recruitment
Our laboratory covers a wide range of fields including spatial economics, regional science, spatial information science, mathematical engineering, and data science. We are recruiting graduate students who are eager to conduct research from these broad perspectives.
Please check the guidelines and application procedures here. If you are interested, please contact us via email.
Research
Research
Network Science and Nonlinear Science enable us to understand Society, Economy, and Regions
Network Science and Nonlinear Science enable us to understand Society, Economy, and Regions
In recent years, the spread of new information and communication technologies, such as mobile phones, has made it easier to obtain detailed data related to society and economy. The role of information science has become increasingly important in analyzing such data. Our laboratory conducts a wide range of research from data analysis to modeling, with keywords such as complex networks and nonlinear science. Representative research themes include the following:
Mathematical models of the co-evolution of cities and roads
Spatiotemporal network analysis of interregional human movement
Modeling the transmission routes of infectious diseases
1. is related to many fields, such as spatial economics, but we propose new modeling based on network science using real data and study its mathematical structure. 2., network analysis methods are applied to geospatial data. 3., we conduct interdisciplinary collaborative research with public health researchers, aiming to provide insights into measures to prevent the spread of infections, going beyond just modeling and data analysis.
Publications
Publications
For detailed research achievements of Fujiwara, please see my Researchmap.
Yunhan Du, Takaaki Aoki, and Naoya Fujiwara (2024): Unveiling realistic mobility patterns with home–origin–destination data aggregation, European Physical Journal Plus 139, 403
Takaaki Aoki, Shota Fujishima, and Naoya Fujiwara (2024): Identifying sinks and sources of human flows: A new approach to characterizing urban structures, Environment and Planning B: Urban Analytics and City Science, 51(2), 419-437
Yunhan Du, and Naoya Fujiwara (2022): A Modified Radiation Model for Human Mobility: Effects of Distinct Job-Seeker Expectation and Job-Offer Benefit Distributions, IEICE Proceedings Series 71.B4L-D-04
Kazufumi Tsuboi (2022): Shifting to telework and firms' location: Does telework make our society efficient?, arXiv.2212.00934 (Revisions Request at The Annals of Regional Science).
Kazufumi Tsuboi, Naoya Fujiwara, Ryo Itoh (2022): Influence of trip distance and population density on intra-city mobility patterns in Tokyo during COVID-19 pandemic. PLoS ONE 17(10): e0276741.
Takaaki Aoki, Shota Fujishima, Naoya Fujiwara (2022): Urban spatial structures from human flow by Hodge–Kodaira decomposition, Scientific Reports 12(1) 11258
Takaaki Aoki, Naoya Fujiwara, Mark Fricker, Toshiyuki Nakagaki (2022): A model for simulating emergent patterns of cities and roads on real-world landscapes, Scientific Reports 12(1) 10093
Naoya Fujiwara, Tomokatsu Onaga, Takayuki Wada, Shouhei Takeuchi, Junji Seto, Tomoki Nakaya, Kazuyuki Aihara (2022): Analytical estimation of maximum fraction of infected individuals with one-shot non-pharmaceutical intervention in a hybrid epidemic model. BMC Infect Dis 22, 512.
Shohei Doi, Takayuki Mizuno, Naoya Fujiwara (2021): Estimation of socioeconomic attributes from location information, Journal of Computational Social Science 4(1) 187-205
Keita Tokuda, Naoya Fujiwara, Akihito Sudo, Yuichi Katori (2021): Chaos may enhance expressivity in cerebellar granular layer, Neural Networks 136 72-86
Takahiro Yabe, Kota Tsubouchi, Naoya Fujiwara, Takayuki Wada, Yoshihide Sekimoto, Satish V. Ukkusuri (2020): Non-compulsory measures sufficiently reduced human mobility in Tokyo during the COVID-19 epidemic, Scientific Reports 10(1) 18053.
Shota Fujishima, Naoya Fujiwara, Yuki Akiyama, Ryosuke Shibasaki, Ritsu Sakuramachi (2020): The size distribution of ‘cities’ delineated with a network theory‐based method and mobile phone GPS data, International Journal of Economic Theory 16(1) 38-50
Takahiro Yabe, Kota Tsubouchi, Naoya Fujiwara, Yoshihide Sekimoto, Satish V. Ukkusuri (2020): Understanding Post-Disaster Population Recovery Patterns, Journal of the Royal Society Interface, 17 20190532
Patricio Olivares, Werner Creixell, and Naoya Fujiwara (2020): Dynamical impacts of the coupling in a model of interactive infectious diseases, Chaos 30, 093144.
Motoki Nagata, Yoshito Hirata, Naoya Fujiwara, Gouhei Tanaka, Hideyuki Suzuki, and Kazuyuki Aihara (2017): Smoothing effect for spatially distributed renewable resources and its impact on power grid robustness, Chaos 27, 033104 (6 pages).
Naoya Fujiwara, Albert Diaz-Guilera, and Jürgen Kurths (2016): Synchronization of mobile chaotic oscillator networks, Chaos 26, 094824 (8 pages).
Sergey Astakhov, Artem Gulai, Naoya Fujiwara, and Jurgen Kurths (2016): The role of asymmetrical and repulsive coupling in the dynamics of two coupled van der Pol oscillators, Chaos 26, 023102 (10 pages).
Hao Zhang, Naoya Fujiwara, Masaharu Kobayashi, Shigeki Yamada, Fuyou Liang, Shu Takagi, and Marie Oshima (2015): Development of a Numerical Method for Patient-Specific Cerebral Circulation Using 1D-0D Simulation of the Entire Cardiovascular System with SPECT Data, Annals of Biomedical Engineering 44, pp. 2351-2363.
Naoya Fujiwara (2015): An approximation for dynamical processes on periodic temporal networks, Nonlinear Theory and Its Applications, IEICE 6, pp. 295-302.
Motoki Nagata, Naoya Fujiwara, Gouhei Tanaka, Hideyuki Suzuki, Eiichi Kohda, and Kazuyuki Aihara (2014): Node-wise Robustness against Fluctuations of Power Consumption in Power Grids, European Physical Journal Special Topics 223, pp. 2549-2559.
Events
Events
Thursday Seminar (joint with Zeng Lab and Kono Lab)
Access
Access
Room 401, Information Sciences Building 4th Floor, Aobayama Campus, Tohoku University (Fujiwara)
■ From Sendai Station: Take the Sendai Subway Tozai Line towards Yagiyama Zoological Park and get off at "Aobayama Station" (9 minutes). Exit from North Exit 1 and it is a short walk.
■ From Sendai Airport: Take the Sendai Airport Access Line to Sendai Station (about 25 minutes). From Sendai Station, take the Sendai Subway Tozai Line towards Yagiyama Zoological Park and get off at "Aobayama Station" (9 minutes). Exit from North Exit 1 and it is a short walk.
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