Aki Vehtari

  • Aalto SCI Computer Science Konemiehentie 2

19982020

Research output per year

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Personal profile

Artistic and research interests

I'm co-leader of the Probabilistic Machine Learning Group at Aalto. We develop new methods for probabilistic modeling, Bayesian inference and machine learning. Our current focuses are in particular probabilistic programming, learning from multiple data sources, Bayesian model assessment and selection, approximate inference and information visualization. Our primary application areas are digital health and biology, neuroscience and user interaction.

I'm visiting professor at Technical University of Denmark (DTU), and I have a shared office at Columbia University in the City of New York. I'm member of development teams of Stan, ELFI, GPy and GPstuff.

Keywords

  • Bayesian modeling
  • Statistical analysis
  • Epidemiology
  • Brain signal analysis
  • Machine learning

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Research Output

Batch simulations and uncertainty quantification in Gaussian process surrogate approximate Bayesian computation

Järvenpää, M., Vehtari, A. & Marttinen, P., 2020, (Accepted/In press) Conference on Uncertainty in Artificial Intelligence (UAI 2020).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Expectation Propagation as a Way of Life: A Framework for Bayesian Inference on Partitioned Data

Vehtari, A., Gelman, A., Sivula, T., Jylanki, P., Tran, D., Sahai, S., Blomstedt, P., Cunningham, J. P., Schiminovich, D. & Robert, C. P., 2020, In : Journal of Machine Learning Research. 21, p. 1-53 53 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
55 Downloads (Pure)

Interindividual variability and lateralization of μ-opioid receptors in the human brain: Individual differences in the μ-opioid receptor system

Kantonen, T., Karjalainen, T., Isojärvi, J., Nuutila, P., Tuisku, J., Rinne, J., Hietala, J., Kaasinen, V., Kalliokoski, K., Scheinin, H., Hirvonen, J., Vehtari, A. & Nummenmaa, L., 15 Aug 2020, In : NeuroImage. 217, 8 p., 116922.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
  • 1 Downloads (Pure)

    Minimum mode saddle point searches using Gaussian process regression with inverse-distance covariance function

    Koistinen, O-P., Ásgeirsson, V., Vehtari, A. & Jonsson, H., 14 Jan 2020, In : Journal of Chemical Theory and Computation. 16, 1, p. 499-509

    Research output: Contribution to journalArticleScientificpeer-review

  • Parallel Gaussian process surrogate Bayesian inference with noisy likelihood evaluations

    Järvenpää, M., Gutmann, M., Vehtari, A. & Marttinen, P., Feb 2020, (Accepted/In press) In : Bayesian Analysis.

    Research output: Contribution to journalArticleScientificpeer-review

  • Projects

    Mining for meaning

    Vehtari, A. & Magnusson, M.

    01/03/202031/12/2024

    Project: Other external funding: Other foreign funding

    SRC WeStAc Magnusson

    Vehtari, A. & Magnusson, M.

    01/01/202029/02/2024

    Project: Other external funding: Other foreign funding

    FCAI: Finnish Center for Artificial Intelligence (FCAI)

    Vehtari, A.

    01/01/201931/12/2022

    Project: Academy of Finland: Other research funding

    FCAI: Finnish Center for Artificial Intelligence (FCAI)

    Vehtari, A.

    01/01/201931/12/2022

    Project: Academy of Finland: Other research funding

    Computational methods for survival analysis

    Vehtari, A., Andersen, M., Dhaka, A., Siivola, E., Sivula, T., Säilynoja, T., Magnusson, M. & Paananen, T.

    01/09/201631/08/2020

    Project: Academy of Finland: Other research funding

    Prizes

    2016 De Groot Prize

    Aki Vehtari (Recipient), 16 Jun 2016

    Prize: Award or honor granted for a specific work

    Activities

    PEERJ (Journal)

    Aki Vehtari (Editor)
    2017 → …

    Activity: Publication peer-review and editorial work typesMembership of an editorial board

    Reviewer for tenure track positions at the IT University of Copenhagen

    Aki Vehtari (Reviewer)
    2017

    Activity: Examination typesStatement of assessment of professorship

    Foreign Organisation

    Aki Vehtari (Visiting researcher)
    11 Apr 201615 Apr 2016

    Activity: Visiting an external institution typesVisit abroad

    Foreign Organisation

    Aki Vehtari (Visiting researcher)
    7 Mar 201611 Mar 2016

    Activity: Visiting an external institution typesVisit abroad

    Foreign Organisation

    Aki Vehtari (Visiting researcher)
    22 Feb 201626 Feb 2016

    Activity: Visiting an external institution typesVisit abroad