Joni Virta

23 papers C 2Journal 17Unranked 4
YearRankTypeTitle / Venue / Authors
2026 J jnl
A method for sparse and robust independent component analysis.
J. Multivar. Anal.
Lauri Heinonen, Joni Virta
2026 J jnl
Evaluation metrics for temporal preservation in synthetic longitudinal patient data.
CoRR
Katariina Perkonoja, Parisa Movahedi, Antti Airola, Kari Auranen, Joni Virta
2026 J jnl
Methods for Generating and Evaluating Synthetic Longitudinal Patient Data: A Systematic Review.
J. Heal. Informatics Res.
Katariina Perkonoja, Kari Auranen, Joni Virta
2026 J jnl
Order Determination for Tensor-Valued Observations Using Data Augmentation.
J. Comput. Graph. Stat.
Una Radojicic, Niko Lietzén, Klaus Nordhausen, Joni Virta
2026 J jnl
Unsupervised linear discrimination using skewness.
J. Multivar. Anal.
Una Radojicic, Klaus Nordhausen, Joni Virta
2024 C conf
Asymptotic Utility of Spectral Anonymization.
PSD
Katariina Perkonoja, Joni Virta
2024 J jnl
Asymptotic utility of spectral anonymization.
CoRR
Katariina Perkonoja, Joni Virta
2024 J jnl
Latent model extreme value index estimation.
J. Multivar. Anal.
Joni Virta, Niko Lietzén, Lauri Viitasaari, Pauliina Ilmonen
2024 J jnl
Structure-Preserving Non-Linear PCA for Matrices.
IEEE Trans. Signal Process.
Joni Virta, Andreas Artemiou
2023 J jnl
Methods for generating and evaluating synthetic longitudinal patient data: a systematic review.
CoRR
Katariina Perkonoja, Kari Auranen, Joni Virta
2023 J jnl
Poisson PCA for matrix count data.
Pattern Recognit.
Joni Virta, Andreas Artemiou
2021 C conf
Dimension Estimation in Two-Dimensional PCA.
ISPA
Una Radojicic, Niko Lictzén, Klaus Nordhausen, Joni Virta
2021 J jnl
Dimension Reduction for Time Series in a Blind Source Separation Context Using R.
J. Stat. Softw.
Klaus Nordhausen, Markus Matilainen, Jari Miettinen, Joni Virta, Sara Taskinen
2020 J jnl
Independent component analysis for multivariate functional data.
J. Multivar. Anal.
Joni Virta, Bing Li, Klaus Nordhausen, Hannu Oja
2019 J jnl
An overview of properties and extensions of FOBI.
Knowl. Based Syst.
Klaus Nordhausen, Joni Virta
2018 — conf
Ladle Estimator For Time Series Signal Dimension.
SSP
Klaus Nordhausen, Joni Virta
2018 — conf
On the Number of Signals in Multivariate Time Series.
LVA/ICA
Markus Matilainen, Klaus Nordhausen, Joni Virta
2017 J jnl
Asymptotic and Bootstrap Tests for the Dimension of the Non-Gaussian Subspace.
IEEE Signal Process. Lett.
Klaus Nordhausen, Hannu Oja, David E. Tyler, Joni Virta
2017 — conf
Blind source separation for nonstationary tensor-valued time series.
MLSP
Joni Virta, Klaus Nordhausen
2017 J jnl
Blind source separation of tensor-valued time series.
Signal Process.
Joni Virta, Klaus Nordhausen
2017 J jnl
Independent component analysis for tensor-valued data.
J. Multivar. Anal.
Joni Virta, Bing Li, Klaus Nordhausen, Hannu Oja
2017 — conf
On the Optimal Non-linearities for Gaussian Mixtures in FastICA.
LVA/ICA
Joni Virta, Klaus Nordhausen
2017 J jnl
The squared symmetric FastICA estimator.
Signal Process.
Jari Miettinen, Klaus Nordhausen, Hannu Oja, Sara Taskinen, Joni Virta