output
20162025
most citedEffects of spatial smoothing on functional brain networks

141 citations

11 papers

stat.AP2025★ 2 cited

Quantitative evaluation of unsupervised clustering algorithms for dynamic total-body PET image analysis

Oona Rainio, Maria K. Jaakkola, Riku Klén

Background. Recently, dynamic total-body positron emission tomography (PET) imaging has become possible due to new scanner devices. While clustering algorithms have been proposed f…

cs.LG2024★ 33 cited

AI for the prediction of early stages of Alzheimer's disease from neuroimaging biomarkers -- A narrative review of a growing field

Thorsten Rudroff, Oona Rainio, Riku Klén

Objectives: The objectives of this narrative review are to summarize the current state of AI applications in neuroimaging for early Alzheimer's disease (AD) prediction and to highl…

stat.ME2021★ 3 cited

Stationary subspace analysis based on second-order statistics

Lea Flumian, Markus Matilainen, Klaus Nordhausen +1

In stationary subspace analysis (SSA) one assumes that the observable p-variate time series is a linear mixture of a k-variate nonstationary time series and a (p-k)-variate station…

astro-ph.IM2021★ 46 cited

Aalto-1, multi-payload CubeSat: In-orbit results and lessons learned

M. R. Mughal, J. Praks, R. Vainio +17

The in-orbit results and lessons learned of the first Finnish satellite Aalto-1 are briefly presented in this paper. Aalto-1, a three-unit CubeSat which was launched in June 2017,…

math.ST2018★ 17 cited

Extracting conditionally heteroscedastic components using ICA

Jari Miettinen, Markus Matilainen, Klaus Nordhausen +1

In the independent component model, the multivariate data is assumed to be a mixture of mutually independent latent components, and in independent component analysis (ICA) the aim…

stat.ME2018★ 9 cited

Sliced Average Variance Estimation for Multivariate Time Series

Markus Matilainen, Christophe Croux, Klaus Nordhausen +1

Supervised dimension reduction for time series is challenging as there may be temporal dependence between the response and the predictors . Recently a time serie…