Search Results - "Lasanen, Sari"

Bayesian Filtering in Incoherent Scatter Plasma Parameter Fits by Virtanen, Ilkka I., Tesfaw, Habtamu W., Roininen, Lassi, Lasanen, Sari, Aikio, Anita

“…Incoherent scatter (IS) radars are invaluable instruments for ionospheric physics, since they observe altitude profiles of electron density (Ne), electron…”
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Enhancing industrial X-ray tomography by data-centric statistical methods by Suuronen, Jarkko, Emzir, Muhammad, Lasanen, Sari, Särkkä, Simo, Roininen, Lassi

“…X-ray tomography has applications in various industrial fields such as sawmill industry, oil and gas industry, as well as chemical, biomedical, and…”
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Sparse Approximations of Fractional Matérn Fields by ROININEN, LASSI, LASANEN, SARI, ORISPÄÄ, MIKKO, SÄRKKÄ, SIMO

“…We consider fast lattice approximation methods for a solution of a certain stochastic non-local pseudodifferential operator equation. This equation defines a…”
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Posterior Convergence Analysis of $\alpha$-Stable Sheets by Chada, Neil K, Lasanen, Sari, Roininen, Lassi

“…This paper is concerned with the theoretical understanding of $\alpha$-stable sheets $U$ on $\mathbb{R}^d$. Our motivation for this is in the context of…”
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Non-Stationary Multi-layered Gaussian Priors for Bayesian Inversion by Emzir, Muhammad, Lasanen, Sari, Purisha, Zenith, Roininen, Lassi, Särkkä, Simo

“…In this article, we study Bayesian inverse problems with multi-layered Gaussian priors. We first describe the conditionally Gaussian layers in terms of a…”
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Posterior convergence for approximated unknowns in non-Gaussian statistical inverse problems by Lasanen, Sari

“…The statistical inverse problem of estimating the probability distribution of an infinite-dimensional unknown given its noisy indirect observation is studied…”
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Enhancing Industrial X-ray Tomography by Data-Centric Statistical Methods by Suuronen, Jarkko, Emzir, Muhammad, Lasanen, Sari, Särkkä, Simo, Roininen, Lassi

“…X-ray tomography has applications in various industrial fields such as sawmill industry, oil and gas industry, chemical engineering, and geotechnical…”
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Hilbert-Space Reduced-Rank Methods For Deep Gaussian Processes by Emzir, Muhammad F., Lasanen, Sari, Purisha, Zenith, Sarkka, Simo

“…A deep Gaussian process is a hierarchy of Gaussian processes where the process at each level is Gaussian given the process on the next level. In this paper, we…”
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Hyperpriors for Mat\'ern fields with applications in Bayesian inversion by Roininen, Lassi, Girolami, Mark, Lasanen, Sari, Markkanen, Markku

“…We introduce non-stationary Mat\'ern field priors with stochastic partial differential equations, and construct correlation length-scaling with hyperpriors. We…”
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Cauchy difference priors for edge-preserving Bayesian inversion with an application to X-ray tomography by Markkanen, Markku, Roininen, Lassi, Huttunen, Janne M J, Lasanen, Sari

“…We study Cauchy-distributed difference priors for edge-preserving Bayesian statistical inverse problems. On the contrary to the well-known total variation…”
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Elliptic boundary value problems with Gaussian white noise loads by Lasanen, Sari, Roininen, Lassi, Huttunen, Janne M. J

“…Linear second order elliptic boundary value problems (BVP) on bounded Lipschitz domains are studied in the case of Gaussian white noise loads. Especially,…”
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Sparse approximations of fractional Mat\'ern fields by Roininen, Lassi, Lasanen, Sari, Orispää, Mikko, Särkkä, Simo

“…We consider a fast approximation method for a solution of a certain stochastic non-local pseudodifferential equation. This equation defines a Mat\'ern class…”
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