Research output per year
Research output per year
Personal profile
Artistic and research interests
I study complex systems and in particular complex networks, from social networks that we humans form to genetic relationships in populations, and from the structure and function of the human brain to man-made systems such as public transport networks.
If you want to know why networks are the thing, please click here!
Education/Academic qualification
Doctoral degree, Engineering and Technology
Award Date: 15 Dec 1998
Master's degree, Engineering and Technology
Award Date: 6 Jun 1995
Keywords
- Complex systems
- Complex networks
- Social networks
- Computational science
- Network neuroscience
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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SDG 3 Good Health and Well-being -
SDG 9 Industry, Innovation, and Infrastructure -
SDG 11 Sustainable Cities and Communities
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Collaborations and top research areas from the last five years
Recent external collaboration on country/territory level. Dive into details by clicking on the dots or
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Age-related changes in the human T cell receptor alpha repertoire suggest positive selection of dual-specific T cells
Nummelin, J., Mattila, J., Middelkamp, V., Saramäki, J., Heikkilä, N. & Arstila, T. P., 4 Aug 2026, In: Journal of Immunology. 215, 8, p. 1-12 12 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile -
Differences in Shared T Cell receptor α Repertoire Associated with Recognition of Viral Antigens
Lamponen, T., Mattila, J., Heikkilä, N., Sormunen, S., Saramäki, J. & Arstila, T. P., 2026, In: Immunological Investigations. 55, 4, p. 718-733 16 p.Research output: Contribution to journal › Article › Scientific › peer-review
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Multiplexity is temporal : effect of social times on network structure
Ureña-Carrion, J., Heydari, S., Aledavood, T., Saramäki, J. & Kivelä, M., Dec 2026, In: EPJ Data Science. 15, 1, p. 1-17 17 p., 11.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile -
Resources modify the associations between kin and fertility in historical Finland
Salonen, M., Lahdenperä, M., Hiraoka, T., Saramäki, J. & Lummaa, V., 3 Jul 2026, In: Evolutionary Human Sciences. 8, 20 p., e30.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile -
Spatiotemporal activity-driven networks
Simon, Z. & Saramäki, J., 1 Jul 2026, In: Physical Review E. 114, 1, p. 1-13 13 p., 014306.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile
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STN NetResilience Saramäki jatko: NetResilience 2. jakso
Saramäki, J. (Principal investigator), Huang, Z. (Project Member), Hiraoka, T. (Project Member) & Simon, Z. (Project Member)
01/10/2024 → 30/09/2027
Project: RCF SRC (STN)
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PV uhkamalli: Epidemiologinen uhkamalli
Saramäki, J. (Principal investigator), Leisma, A. (Project Member) & Lindfors, E. (Project Member)
01/05/2025 → 31/10/2025
Project: Other Domestic (20 FC)
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STN NetResilience Saramäki: Social networks, fertility and wellbeing in rapidly ageing Finland: Building population resilience
Saramäki, J. (Principal investigator), Heydari, S. (Project Member), Hiraoka, T. (Project Member) & Huang, Z. (Project Member)
01/10/2021 → 30/09/2024
Project: RCF SRC (STN)
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HumExp/Saramäki
Saramäki, J. (Principal investigator) & Triana Hoyos, A. (Project Member)
01/01/2018 → 31/12/2019
Project: Business Finland: Other research funding
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Digital Daily Rhythms
Saramäki, J. (Principal investigator), Hiraoka, T. (Project Member), Triana Hoyos, A. (Project Member), Hakala, A. (Project Member), Alakörkkö, T. (Project Member), Aledavood, T. (Project Member), Urena Carrion, J. (Project Member) & Heydari, S. (Project Member)
01/09/2016 → 31/08/2020
Project: Academy of Finland: Other research funding
Datasets
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A collection of public transport network data sets for 27 cities
Kujala, R. (Creator), Darst, R. (Creator), Weckström, J. (Creator), Mladenovic, M. (Supervisor) & Saramäki, J. (Supervisor), Zenodo, 29 Dec 2017
DOI: 10.5281/zenodo.1133858, https://zenodo.org/record/1133858
Dataset
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Data from: Genetic structure of native ant supercolonies varies in space and time
Schultner, E. (Contributor), Saramäki, J. (Creator) & Helanterä, H. (Contributor), Dryad Digital Repository, 9 Nov 2016
DOI: 10.5061/dryad.c682f, https://datadryad.org/resource/doi:10.5061/dryad.c682f and one more link, https://doi.org/10.5061/dryad.c682f/1 (show fewer)
Dataset
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Estimation and monitoring of city-to-city travel times using call detail records
Kujala, R. (Contributor), Aledavood, T. (Contributor) & Saramäki, J. (Creator), figshare, 1 Jan 2016
DOI: 10.6084/m9.figshare.c.3697897.v1, https://figshare.com/collections/Estimation_and_monitoring_of_city-to-city_travel_times_using_call_detail_records/3697897/1
Dataset
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Multiplexity is temporal: effect of social times on network structure
Ureña-Carrion, J. (Creator), Heydari, S. (Creator), Aledavood, T. (Creator), Saramäki, J. (Creator) & Kivelä, M. (Creator), figshare, 5 Feb 2026
DOI: 10.6084/m9.figshare.c.8292280
Dataset
Activities
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Temporal Networks of Human Interaction
Saramäki, J. (Speaker)
5 Jun 2025Activity: Talk or presentation types › Invited academic talk
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DAGshop - a Workshop on Directed Acyclic Graphs
Saramäki, J. (Member)
2 Jun 2025Activity: Participating in or organising an event types › Organization of a workshop, panel, session, tutorial or event
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Temporal Networks of Human Interaction
Saramäki, J. (Speaker)
1 Dec 2025Activity: Talk or presentation types › Invited academic talk
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Networks in Time and Space
Saramäki, J. (Speaker)
4 Jun 2025Activity: Talk or presentation types › Academic keynote or plenary lecture
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Evaluation of a Principal Investigator Project application for the Austrian Science Fund (FWF)
Saramäki, J. (Examiner)
24 May 2024Activity: Academic assessments › Evaluation of funding applications
Press/Media
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Uutta tietoa seuraavan pandemian varalle: laumaimmuniteetti ei jakaudu tasaisesti
31/07/2025
1 item of Media coverage
Press/Media: Media appearance
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GLOBAL ROUND UP SECTOR WEEKLY: UNIVERSITY NEWSLETTER OF WEEK-ENDED NOV 19, 2023
Peltokorpi, A., Niemelä, I., Saramäki, J., Ilmoniemi, R., Seppänen, O., Vicente-Saez, R., Ojanperä, T. & Zevenhoven, K.
20/11/2023
1 item of Media coverage
Press/Media: Media appearance
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Findings from Aalto University in the Area of Information Technology Reported (Estimating Inter-regional Mobility During Disruption: Comparing and Combining Different Data Sources)
Leskelä, L., Ala-Nissila, T., Saramäki, J., Hiraoka, T. & Huang, Z.
04/04/2023
1 item of Media coverage
Press/Media: Media appearance
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Kansainvälinen tutkijaryhmä: Kännykkädataa hyödynnettävä ja pysyvää yhteistyötä rakennettava – "Koska tämä ei ole viimeinen pandemia"
27/04/2020
1 item of Media coverage
Press/Media: Media appearance
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Professori: koronavirus leviää kiihtyvällä vauhdilla – ”Nyt on se hetki, kun kontrollilla voidaan vaikuttaa”
10/03/2020
1 item of Media coverage
Press/Media: Media appearance