People

Professor

Sampsa Pursiainen

Professor
sovellettu matematiikka
Faculty of Information Technology and Communication Sciences
Tampere University
+358407505677
sampsa.pursiainen@tuni.fi

https://orcid.org/0000-0002-9131-9070

About me

My work has focused on the numerical mathematics of inverse problems since 2001. My dissertation completed in 2009 concerned numerical forward and inverse methods of biomedical imaging. Currently, my research concentrates on advancing the mathematical and computational methodology in the imaging applications of life and geosciences, where highly advanced technological applications often comprise incomplete data and scarce a priori information leading to ill-posed inverse problems. Characteristic to inverse imaging is that, in addition to the measurements, the quality of the results depends also on various other factors such as the applied measurement approach and mathematical methodology. Owing to the recent rapid increase in computational resources and the ability to handle massive amounts of data, the number of numerically approachable problems is growing constantly.

Since January 2019, I have served as a Full Professor of Applied Mathematics at Tampere University, where my goal is to continue and extend my ongoing international research cooperation. I am a team leader in the Finnish Centre of Excellence in Inverse Modelling and Imaging (2018-2025) and Flagship of Advanced Mathematics for Sensing, Imaging and Modelling FAME (2024-2031).

Associate Professor

Post Docs

Maryamolsadat Samavaki

Postdoctoral Research Fellow
Faculty of Information Technology and Communication Sciences
Tampere University
+358505213308
maryamolsadat.samavaki@tuni.fi

Doctoral Researchers

Joonas Lahtinen

Part-Time Teacher
Faculty of Information Technology and Communication Sciences
Tampere University
joonas.j.lahtinen@tuni.fi

https://orcid.org/https://orcid.org/0000-0002-9377-8713

More information

Santtu Söderholm

Doctoral Researcher
Faculty of Information Technology and Communication Sciences
Tampere University
+358504089805
santtu.soderholm@tuni.fi

https://orcid.org/0009-0004-2918-3733

More information

Responsibilities

Development of Zeffiro Interface and other tasks related to the work of a doctoral researcher.

Latest publications

A coupled diffusion approximation for spatiotemporal hemodynamic response and deoxygenated blood volume fraction in microcirculation

Samavaki, M., Söderholm, S., Zarrin Nia, A. & Pursiainen, S., maalisk. 2025, julkaisussa: Biomedical Signal Processing and Control. 101, 107183.

Tutkimustuotos: Artikkeli › Tieteellinen › vertaisarvioitu

Modeling of blood flow in cerebral arterial circulation and its dynamic impact on electrical conductivity in a realistic multi-compartment head model

Samavaki, M., Söderholm, S., Nia, A. Z. & Pursiainen, S., helmik. 2024, julkaisussa: Computer Methods and Programs in Biomedicine. 244, 107983.

Tutkimustuotos: Artikkeli › Tieteellinen › vertaisarvioitu

The effects of peeling on finite element method-based EEG source reconstruction

Söderholm, S., Lahtinen, J., Wolters, C. H. & Pursiainen, S., maalisk. 2024, julkaisussa: Biomedical Signal Prosessing And Control. 89, 14 Sivumäärä, 105695.

Tutkimustuotos: Artikkeli › Tieteellinen › vertaisarvioitu

Pressure–Poisson equation in numerical simulation of cerebral arterial circulation and its effect on the electrical conductivity of the brain

Samavaki, M., Oluwatoki Yusuf, Y., Nia, A. Z., Söderholm, S., Lahtinen, J., Galaz Prieto, F. & Pursiainen, S., jouluk. 2023, julkaisussa: Computer Methods and Programs in Biomedicine. 242, 107844.

Tutkimustuotos: Artikkeli › Tieteellinen › vertaisarvioitu

Pietari Mönkkönen

Doctoral Researcher
Faculty of Information Technology and Communication Sciences
Tampere University
pietari.monkkonen@tuni.fi

Pranjali Singh

Doctoral Researcher
Faculty of Information Technology and Communication Sciences
Tampere University
pranjali.singh@tuni.fi

Ishan Sen

Doctoral Researcher
Faculty of Information Technology and Communication Sciences
Tampere University
+358504076047
ishan.sen@tuni.fi

https://orcid.org/0009-0004-7181-0040

More information

About me

I am a doctoral researcher and my research focuses on Artificial Intelligence, Machine Learning, and Signal Processing. Currently, I am working on the development of advanced Augmentation and Alternative Communication (AAC) systems. The objectives are that the systems should be more situation-aware and capable of learning user’s habits, which could provide a better way for communicating for the user with a cognitive or speaking disability.

External

Senior Academic Personnel

Simo Ali-Löytty

Senior University Lecturer
Faculty of Information Technology and Communication Sciences
Tampere University
+358401981991
simo.ali-loytty@tuni.fi

Available by email.
https://orcid.org/0000-0002-6720-7722

More information

About me

Head of Bachelor's Programme in Mathematics and Statistical Data Analysis.

Adjunct professor of industrial mathematics.

I'm interested in mathematical modeling and solving problems in industry using mathematical methods.

Teaching maths and developing teaching are my particular interest.

Research groups:

Inverse problems group

Technology-supported Mathematics Education Research Group

Field of expertise

Positioning algorithms, nonlinear filters.

Mathematics exams performed electronically.

Name	Hostname	Vendor	Expiry
lb_selection	www.tuni.fi		Session
Load balancer selection cookie, assist in balancing the servers
cookiehub	.tuni.fi	CookieHub	365 days
Used by CookieHub to store information about whether visitors have given or declined the use of cookie categories used on the site.
csrftoken	4932.clients.giosgusercontent.com		364 days
Used by many systems for Cross Site Request Forgery protection.
sgid	service.giosg.com		400 days
Personal, secret identifier of the visitor. This ID is only known by the end user's browser and is only sent to Giosg for validation. This secret prevents any other person (like an agent) from impersonating the visitor or accessing their private data. This is the same value as “sgid” in service.giosg.com domain. This cookie is normally set only for those visitors for whom we cannot store this information to *.giosg.com domain in an iframe because of blocked third-party cookies.
giosg_chat_id_	www.tuni.fi		365 days
Organization specific visitor identifier. This cookie is used to distinguish unique visitors and allow chat to continue from page to page.
giosg_operator_state_cache_4932			Session
Information is stored to offer better user experience by faster chat loading time after page change.
scrollPos:/			Session
Scrolling position depth based on user's device' width and length

Name	Hostname	Vendor	Expiry
uxt:2b1bdeff-d4a2-4ed9-90fb-30eb5e4a16fc			Session
uxtr_disable_0c226930-efad-492d-a88e-df6b7568227a			Session

Name	Hostname	Vendor	Expiry
_ga_	.tuni.fi	Google	400 days
Contains a unique identifier used by Google Analytics 4 to determine that two distinct hits belong to the same user across browsing sessions.
_ga	.tuni.fi	Google	400 days
Contains a unique identifier used by Google Analytics to determine that two distinct hits belong to the same user across browsing sessions.
nmstat	.tuni.fi	Siteimprove	400 days
This cookie is used to help record visitors' use of the website. It is used to collect statistics about site usage such as when the visitor last visited the site. This information is then used to improve the user experience on the website. This Siteimprove Analytics cookie contains a randomly generated ID used to recognize the browser when a visitor reads a page. The cookie contains no personal information and is used only for web analytics.

Name	Hostname	Vendor	Expiry
_gcl_au	.tuni.fi	Google Advertising Products	90 days
Used by Google AdSense to understand user interaction with the website by generating analytical data.
test_cookie	.doubleclick.net	Google	1 hour
Used to check if the user's browser supports cookies
msd365mkttr	www.tuni.fi		365 days
This is being used for the same purpose as the first cookie(79f08280-5c63-4331-b04d-fb6f39afda51). Only difference is that this cookie is set on the customer domain. In some cases, we're unable to access third party cookies (ex: safari OOB blocks) therefore we set this first party cookie to keep functionality.
msd365mkttrs	www.tuni.fi		Session
This cookie is similar to (319af4c0-e197-4de9-8a9b-fe98c8a2ca04). Only difference is that it's a first party cookie
IDE	.doubleclick.net	Google Advertising Products	390 days
Used by Google's DoubleClick to serve targeted advertisements that are relevant to users across the web. Targeted advertisements may be displayed to users based on previous visits to a website. These cookies measure the conversion rate of ads presented to the user.

Professor

Sampsa Pursiainen

About me

Associate Professor

Post Docs

Maryamolsadat Samavaki

Doctoral Researchers

Joonas Lahtinen

Research topics

Research fields

Santtu Söderholm

Responsibilities

A coupled diffusion approximation for spatiotemporal hemodynamic response and deoxygenated blood volume fraction in microcirculation

Modeling of blood flow in cerebral arterial circulation and its dynamic impact on electrical conductivity in a realistic multi-compartment head model

The effects of peeling on finite element method-based EEG source reconstruction

Pressure–Poisson equation in numerical simulation of cerebral arterial circulation and its effect on the electrical conductivity of the brain

Pietari Mönkkönen

Pranjali Singh

Ishan Sen

About me

External

Senior Academic Personnel

Simo Ali-Löytty

About me

Field of expertise