Department of Mathematics and Systems Analysis

Research groups

Stochastics and statistics

We develop and apply methods in probability theory, mathematical statistics, and algebra related to applications in information networks, data science, and natural sciences. The main research themes are random graph dynamics, asymptotic statistics, and mathematical physics.



Lasse Leskelä
Random graphs, stochastic processes, network statistics
Pauliina Ilmonen
Multivariate extreme values, invariant coordinate selection, cancer epidemiology
Kalle Kytölä
Mathematical physics, probability, algebra

Postdoctoral researchers

Steven Flores
Pastor Giancarlo
Lauri Viitasaari
Christian Webb

Doctoral students

Armando Gutiérrez
Matias Heikkilä
Joona Karjalainen
Alex Karrila
Niko Lietzén
Hoa Ngo

Research assistants

Sami Helander

Affiliated docents: Kari Eloranta, Teemu Pennanen, Karl Sigman

Affiliated doctoral students: Mikko Kuronen, Matias Leppisaari, Mika Sirviö, Tarja Sirén

Projects and networks

Selected publications



We teach courses in probability and statistics at all levels. Many of the offered MSc courses are eligible as a basis for an SHV degree in insurance mathematics. PhD education in stochastics and statistics is coordinated by the Finnish Doctoral Education Network in Stochastics and Statistics (FDNSS).


  • Esko Valkeila (Professor 2004–2012)
  • Milla Kibble (Lecturer 2010–2014)
  • Helena Aro (PhD 2013, Postdoc 2013–2014)
  • Ehsan Azmoodeh (PhD 2010 & Postdoc 2010–2012)
  • Amitava Mukherjee (Postdoc 2010–2011)
  • Zhe Chen (PhD 2016)
  • Ari-Pekka Perkkiö (PhD 2013)
  • Heikki Tikanmäki (PhD 2012)
  • Ilkka Mellin (University teacher emeritus)
  • Matti Kiiski (Research assistant)

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