• Otakaari 1

    20042022

    Research activity per year

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    Personal profile

    Artistic and research interests

    My research area is stochastics, the mathematical theory of random events, systems, and processes. The main focus is statistical network models and random graphs, together with random dynamical systems and stochastic processes acting on networks. The general objective is to derive fundamental mathematical laws for predicting the macroscopic behavior of large random systems and describing the accuracy of statistical learning algorithms for large network models. Such laws allow to make predictions using massive high-dimensional data sets for which classical methods of statistics and machine learning are often infeasible. Statistical network models under study include random intersection graphs, stochastic block models, and graphons. The archetypes of stochastic dynamics studied are branching processes, random walks, and first passage percolation. The formulas and methods have a wide range of applications ranging from information and social networks to biological and financial systems.

    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):

    • SDG 3 - Good Health and Well-being

    Education/Academic qualification

    Doctoral degree, Engineering and Technology, Helsinki University of Technology

    Award Date: 13 Dec 2005

    Master's degree, Engineering and Technology, Helsinki University of Technology

    Award Date: 26 Jan 1999

    External positions

    Professor (pro tem), University of Jyväskylä

    1 Oct 201131 Jul 2012

    University Lecturer, University of Jyväskylä

    1 Jan 201131 Dec 2014

    Assistant professor, Eindhoven University of Technology

    1 Jun 200731 Dec 2007

    Postdoctoral researcher, Centrum voor Wiskunde en Informatica

    1 Jun 200631 May 2007

    Visiting Scholar, Columbia University

    1 Mar 200631 May 2006

    Keywords

    • Probability theory
    • Stochastic processes
    • Random graphs
    • Statistical network models
    • Queueing Theory
    • Applied probability
    • Stochastics
    • Stochastic modeling

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