Books :

Nordhausen, K. and Taskinen, S. (editors) (2015): Modern Nonparametric, Robust and Multivariate Methods. Festschrift in Honour of Hannu Oja, Springer.

 

Peer reviewed publications:

Nordhausen, K., Oja, H. and Tyler, D.E. (2006): On the Efficiency of Invariant Multivariate Sign and Rank Tests. In Liski, E.P., Isotalo, J., Niemelä, J., Puntanen, S., and Styan, G.P.H. (editors) "Festschrift for Tarmo Pukkila on his 60th birthday", 217-231, University of Tampere, Tampere. pdf

Aula, A. and Nordhausen, K. (2006): Modeling Successful Performance in Web Searching, Journal of the American Society for Information Science and Technology, 57(12), 1678-1693.

Kukkasjärvi, P., Nordhausen, K. and Malmivaara, A. (2006): Reanalysis of Systematic Reviews: The Case of Invasive Strategies for Acute Coronary Syndromes, International Journal of Technology Assessment in Health Care, 22(4), 484-496.

Nordhausen, K. and Sinha, B.K. (2006): ML Estimation for a Pareto Distribution of the Second Kind in a Sequential Design. Journal of the Indian Statistical Association, 44(1), 61-72.

Nordhausen, K. and Nummi, T. (2007): Estimation of the Diameter Distribution of a Stand Marked for Cutting Using Finite Mixtures. Canadian Journal of Forest Research, 37(4), 817-824.

Nordhausen, K., Oja, H. and Ollila, E. (2007): Robust ICA Based on Two Scatter Matrices. In Aivazian, S. , Filzmoser, P. and Kharin, Y. (editors) "Proceedings of the 8th International Conference on Computer Data Analysis and Modeling", 84-91, Minsk Publishing Center BSU, Minsk.

Nordhausen, K., Oja, H. and Ollila, E. (2008): Robust Independent Component Analysis Based on Two Scatter Matrices. Austrian Journal of Statistics, 37(1), 91-100. link

Nordhausen, K., Oja, H. and Tyler, D.E. (2008): Tools for Exploring Multivariate Data: The Package ICS. Journal of Statistical Software, 28(6), 1-31. link

Nordhausen, K., Oja, H. and Paindaveine, D. (2009): Signed-Rank Tests for Location in the Symmetric Independent Component Model. Journal of Multivariate Analysis, 100(5), 821-834.

Tahvanainen, A., Leskinen, M., Koskela, J.,
Ilveskoski, E., Nordhausen, K., Oja, H., Kähönen, M., Kööbi, T., Mustonen, J. and Pörsti, I.
(2009): Ageing and Cardiovascular Responses to Head-Up Tilt in Healthy Subjects. Atherosclerosis, 207, 445-451.

Puolakka, P.A.E., Rorarius, M.G.F., Roviola, M., Puolakka, T.J.S., Nordhausen, K. and Lindgren, L. (2010): Persistent Pain Following Knee Arthroplasty. European Journal of Anaesthesiology, 27, 455-460.

Nordhausen, K. and Oja, H. (2010): Three Scatter Matrices and Independent Subspace Analysis. In Aivazian, S. , Filzmoser, P. and Kharin, Y. (editors) "Proceedings of the 9th International Conference on Computer Data Analysis and Modeling", 93-100, Minsk Publishing Center BSU, Minsk.

Ilmonen, P., Nordhausen, K., Oja, H. and Ollila, E. (2010): A New Performance Index for ICA: Properties, Computation and Asymptotic Analysis. In Vigneron, V., Zarzoso, V., Moreau, E., Gribonval, R. and Vincent, E. (editors) "Latent Variable Analysis and Signal Separation", LNCS 6365, 229-236, Springer, Heidelberg.

Möttönen, J., Nordhausen, K. and Oja, H. (2010): Asymptotic Theory of the Spatial Median. In Antoch, J., Huskova, M. and Sen, P.K. (editors) "Nonparametrics and Robustness in Modern Statistical Inference and Time Series Analysis: A Festschrift in Honor of Professor Jana Jureckova", 182–193, IMS Collections, Vol. 7. link

Tahvanainen, A., Koskela, J., Leskinen, M., Ilveskoski, E., Nordhausen, K., Kähönen, M., Kööbi, T., Mustonen, J. and Pörsti, I. (2011): Reduced Systemic Vascular Resistance in Healthy Volunteers with Presyncopal Symptoms During Nitrate-Stimulated Tilt-Table Test. British Journal of Clinical Pharmacology, 71, 41-51.

Nordhausen, K., Oja, H. and Ollila, E. (2011): Multivariate Models and the First Four Moments. In Hunter, D.R., Richards, D.S.R. and Rosenberger, J.L. (editors) "Nonparametric Statistics and Mixture Models:  A Festschrift in Honor of Thomas P. Hettmansperger", 267-287, World Scientific, Singapore.

Nordhausen, K. and Oja, H. (2011): Independent Subspace Analysis using Three Scatter Matrices. Austrian Journal of Statistics, 40 (1&2), 93-101. link

Nordhausen, K., Ollila, E. and Oja, H. (2011): On the Performance Indices of ICA and Blind Source Separation. In the Proceedings of "2011 IEEE 12th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC 2011)", 486-490.

Nordhausen, K. and Oja, H. (2011): Multivariate L1 Methods: The package MNM. Journal of Statistical Software, 43(5), 1-28. link

Nordhausen, K. and Oja, H. (2011): Scatter Matrices with Independent Block Property and ISA. In the Proceedings of "19th European Signal Processing Conference 2011 (EUSIPCO 2011)", 1738-1742. link

Nordhausen, K., Ilmonen, P., Mandal, A., Oja, H. and Ollila, E. (2011): Deflation-based FastICA Reloaded. In the Proceedings of "19th European Signal Processing Conference 2011 (EUSIPCO 2011)", 1854-1858. link

Nordhausen, K. and Oja, H. (2011): Discussion on the paper "The Asymptotic Efficiency of the Spatial Median for Elliptically Symmetric Distributions" by Andrew Magyar
and David E. Tyler. Sankhya, Series B, 73, 188-191.

Tahvanainen, A., Tikkakoski, A., Leskinen, M., Nordhausen, K., Kähönen, M., Kööbi, T., Mustonen, J. and Pörsti, I. (2012): Supine and Upright Haemodynamic Effects of Sublingual Nitroglycerin and Inhaled Salbutamol a Double-blind, Placebo-controlled, Randomized Study. Journal of Hypertension, 30(2), 297-306.

Nordhausen, K., Gutch, H. W., Oja, H. and Theis, F.J. (2012): Joint Diagonalization of Several Scatter Matrices for ICA. In Theis, F., Cichocki, A., Yeredor, A. and Zibulevsky, M. (editors) "Latent Variable Analysis and Signal Separation", LNCS 7191, 172-179, Springer, Berlin Heidelberg.

Miettinen, J., Nordhausen, K., Oja, H. and Taskinen, S. (2012): Statistical Properties of a Blind Source Separation Estimator for Stationary Time Series. Statistics & Probability Letters, 82, 1865-1873.

Oja, H. and Nordhausen, K. (2012): Independent Component Analysis. In El-Shaarawi, A.-H. and Piegorsch, W. (editors) "Encyclopedia of Environmetrics", 2nd Edition, 1352-1360, Chichester, UK.

Miettinen, J., Nordhausen, K., Oja, H. and Taskinen, S. (2013): Fast Equivariant JADE. In the Proceedings of 38th IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2013), 6153-6157.

Miettinen, J., Nordhausen, K., Oja, H. and Taskinen, S. (2014): Deflation-based Separation of Uncorrelated Stationary Time Series. Journal of Multivariate Analysis, 123, 214-227.

Nordhausen, K. (2014): On Robustifying Some Second Order Blind Source Separation Methods for Nonstationary Time Series. Statistical Papers, 55, 141-156.

Liski, E., Nordhausen, K. and Oja, H. (2014): Supervised Invariant Coordinate Selection. Statistics: A Journal of Theoretical and Applied Statistics, 48, 711-731.

Miettinen, J., Nordhausen, K., Oja, H. and Taskinen, S. (2014): Deflation-based FastICA with Adaptive Choices of Nonlinearities. IEEE Transaction on Signal Processing, 62, 5716-5724.

Illner, K., Miettinen, J., Fuchs, C., Taskinen, S., Nordhausen, K., Oja, H. and Theis, F.J. (2015): Model Selection Using Limiting Distributions of Second-order Source Separation Algorithms. Signal Processing, 113, 95-103.

Matilainen, M., Nordhausen, K. and Oja, H. (2015): New Independent Component Analysis Tools for Time Series. Statistics and Probability Letters, 105, 80-87.

Haltia, O., Törmänen, S., Eräranta, A., Jokihaara, J., Nordhausen, K., Rysä, J., Ruskoaho, H., Tikkanen, I., Mustonen, J. and Pörsti, I. (2015): Vasopeptidase Inhibition Corrects Structure and Function of Small Arteries in Experimental Renal Insufficiency. Journal of Vascular Research, 52, 94-102.

Hautaniemi, E., Tikkakoski, A., Tahvanainen A., Nordhausen, K., Kähönen, M., Mattsson, T., Luhtala, S., Turpeinen, A., Vapaatalo, H., Korpela, R. and Pörsti, I. (2015): Effect of Fermented Milk Product Containing Lactotripeptides and Plant Sterol Esters on Haemodynamics in Subjects with Metabolic Syndrome a Randomized, Double-blinded, Placebo-controlled Study. British Journal of Nutrition, 114, 376-386.

Miettinen, J., Taskinen, S., Nordhausen, K. and Oja, H. (2015): Fourth Moments and Independent Component Analysis. Statistical Science, 30, 372-390.

Nordhausen, K., Oja, H., Filzmoser, P. and Reimann, C. (2015): Blind Source Separation for Spatially Correlated Compositional Data. Mathematical Geosciences, 47, 753-770.

Nordhausen, K. and Tyler, D.E. (2015): A Cautionary Note on Robust Covariance Plug-in Methods. Biometrika, 102, 573-588.

Nordhausen, K., Oja, H. and Pärssinen, O. (2015): Mixed Effects Regression Splines to Model Myopia Data. Journal of Biometrics and Biostatistics, 6, 239. pdf

Ilmonen, P., Nordhausen, K., Oja, H. and Theis, F.J. (2015): An Affine Equivariant Robust Second Order Blind Source Separation Method. In Vincent, E., Yeredor, A., Koldovsky, Z. and Tichavsky, P. (editors) "Latent Variable Analysis and Signal Separation", LNCS 9237, 328-335, Springer.

Fischer, D., Nordhausen, K. and Taskinen, S. (2015): Publication and Coauthorship Networks of Hannu Oja. In Nordhausen, K. and Taskinen, S. (editors) "Modern Nonparametric, Robust and Multivariate Methods. Festschrift in Honour of Hannu Oja", 7-27, Springer.

Dümbgen, L., Nordhausen, K. and Schuhmacher, H. (2016): New Algorithms for M-estimation of Multivariate Location and Scatter. Journal of Multivariate Analysis, 144, 200-217.

Miettinen, J., Illner, K., Nordhausen, K., Oja, H., Taskinen, S. and Theis, F.J. (2016): Separation of Uncorrelated Stationary Time Series Using Autocovariance Matrices. Journal of Time Series Analysis, 37, 337-354.

Taskinen, S., Miettinen, J. and Nordhausen, K. (2016): A More Effcient Second Order Blind Identification Method for Separation of Uncorrelated Stationary Time Series. Statistics and Probability Letters, 116, 121-126.

Tahvanainen, A., Tikkakoski, A., Koskela, J., Nordhausen, K., Viitala, J., Leskinen, M., Kähönen, M., Kööbi, T., Uito, M., Viik, J., Mustonen, J. and Pörsti, I. (2016) : The Type of the Functional Cardiovascular Response to Upright Posture is Associated With Arterial Stiffness: A Cross-Sectional Study in 470 Volunteers. BMC Cardiovascular Disorders, 16, 1-12.

Lietzen, N., Nordhausen, K. and Ilmonen, P. (2016): Minimum Distance Index for Complex Valued ICA. Statistics and Probability Letters, 118, 100-106.

Matilainen, M., Miettinen, J., Nordhausen, K., Oja, H. and Taskinen, S. (2016): ICA ans Stochastic Volatility Models. In Aivazian, S., Filzmoser, P. and Kharin, Y. : "Proceedings of the XI International Conference on Computer Data Analysis and Modeling", 30-37, Publishing Center of BSU, Minsk.

Miettinen, J., Nordhausen, K., Oja, H., Taskinen, S. and Virta, J. (2017): The Squared Symmetric FastICA Estimator. Signal Processing, 131, 402-411.

 

Accepted manuscripts:

Miettinen, J., Nordhausen, K., Taskinen, S. and Tyler, D.E.: On the Computation of Symmetrized M-Estimators of Scatter. To appear in Agostinelli, C., Basu, A., Filzmoser, P. and Mukherje, D. (editors) "Recent Advances in Robust Statistics: Theory and Applications", Springer.

Liski, E., Nordhausen, K., Oja, H. and Ruiz-Gazen, A.: Combining Linear Dimension Reduction Estimates. To appear in Agostinelli, C., Basu, A., Filzmoser, P. and Mukherje, D. (editors) "Recent Advances in Robust Statistics: Theory and Applications", Springer.

Miettinen, J., Nordhausen, K. and Taskinen, S.: Blind Source Separation Based on Joint Diagonalization in R: The Packages JADE and BSSasymp. Conditionally accepted for publication in the Journal of Statistical Software.

 

Unpublished preprints:

Ilmonen, P., Nordhausen, K., Oja, H. and Ollila, E.: On Asymptotics of ICA Estimators and Their Performance Indices. arXiv

Virta, J., Nordhausen, K. and Oja, H.: Joint Use of Third and Fourth Cumulants in Independent Component Analysis. arXiv

 

Submitted manuscripts:

Fischer, D., Berro, A.,Nordhausen, K. and Ruiz-Gazen, A.: REPPLab: Detecting Groups and Outliers Using Exploratory Projection Pursuit.

Virta, J., Li, B., Nordhausen, K. and Oja, H.: Independent Component Analysis for Tensor-Valued Data. arXiv

Virta, J., Li, B., Nordhausen, K. and Oja, H.: JADE for Tensor-Valued Observations . arXiv

Matilainen, M., Croux, C., Nordhausen, K. and Oja, H.: Supervised Dimension Reduction for Multivariate Time Series.

Virta, J. and Nordhausen, K.: Blind Source Separation of Tensor-Valued Time Series.

Virta, J., Nordhausen, K. and Oja, H.: Projection Pursuit for Non-Gaussian Independent Components.

Fischer, D., Mosler, K., Möttönen, J., Nordhausen, K., Pokotylo, O. and Vogel, D.: Computing the Oja Median in R: The Package OjaNP. arXiv

Fischer, D., Honkatukia, M., Tuiskula-Haavisto, M., Nordhausen, K., Cavero, D., Preisinger, R. and Vilkki, J.: Subgroup Detection in Genotype Data Using Invariant Coordinate Selection.

Virta, J. and Nordhausen, K.: On the Optimal Nonlinearities in FastICA.

Virta, J., Taskinen, S. and Nordhausen, K.: Applying Fully Tensorial ICA to fMRI data.

Lietzen, N., Nordhausen, K. and Ilmonen, P.: Complex Valued Robust Multidimensional SOBI.

Frahm, G., Nordhausen, K. and Oja, H.: M-Estimation of Location and Scatter with Incomplete and Dependent Data.

Nordhausen, K., Ollila, E. and Taskinen, S.: To Make, Or Not to Make Any Moment Assumptions?

 

Book reviews:

Nordhausen, K. (2008): Book review of "Lattice - Multivariate Data Visualization" by D. Sarkar. International Statistical Reviews, Short Book Reviews, 76(3), 440.

Nordhausen, K. (2009): Book review of "Introductory Statistics with R, Second Edition" by P. Dalgaard . International Statistical Reviews, Short Book Reviews, 77(1), 155-156.

Nordhausen, K. (2009): Book review of "A First Course in Statistical Programming with R" by W. J. Braun and D. J. Murdoch. International Statistical Reviews, Short Book Reviews, 77(2), 317.

Nordhausen, K. (2009): Book review of "The Elements of Statistical Learning: Data Mining, Inference, and Prediction, Second Edition" by T. Hastie, R. Tibshirani and J. Friedman. International Statistical Reviews, Short Book Reviews, 77(3), 482.

Nordhausen, K. (2013): Book review of "Stationary Stochastic Processes" by G. Lindgren. International Statistical Reviews, Short Book Reviews, 81(3), 469-470.

Nordhausen, K. (2013): Book review of "Ensemble Methods: Foundations and Algorithms" by Z.-H. Zho. International Statistical Reviews, Short Book Reviews, 81(3), 470.

Nordhausen, K. (2014): Book review of "Multiple Imputation and its Application" by J. R. Carpenter and M. G. Kenward. International Statistical Reviews, Short Book Reviews, 82(1), 151-152.

Nordhausen, K. (2014): Book review of "An Introduction to Statistical Learning - with Applications in R" by G. James, D. Witten, T. Hastie and R. Tibshirani. International Statistical Reviews, Short Book Reviews, 82(1), 156-157.

Nordhausen, K. (2015): Book review of "Statistical Analysis of Network Data with R" by E.D. Kolaczyk and G. Csardi. International Statistical Reviews, Short Book Reviews, 83(1), 171-172.

 

Other publications:

Nordhausen, K. (2003): Comparison Between Empirical Bayes and Fully Bayes approaches for Conditionally Exponential Distributed Data, Diploma Thesis, Department of Statistics, University of Dortmund.

Fischer, M., Moriarty J., Nordhausen, K., Panov, I. and Vecil, F. (2006): Dynamic Traffic Control. In Heiliö, M. and Kauranne, T. (editors) "Proceedings of the 18th ECMI Modelling Week 13.-21. August 2004", 39-47, Research Report 101, Lappeenranta University of Technology, Lappeenranta.

Nordhausen, K. (2008): Two Scatter Matrices for Multivariate Analysis. In Koivisto, P. (editor) "Digest of TISE Seminar 2008", 34-39, Tampere.

Nordhausen, K. (2008): On Invariant Coordinate Selection and Nonparametric Analysis of Multivatiate Data, Dissertation, Tampere University Press, Tampere. link

 

Talks given at conferences:

Multivariate Componentwise Sign and Rank Tests Using an Invariant Coordinate Selection. ICORS 2006.

Location Tests in the IC Model Using Marginal Ranks. ICORS 2007 and LINSTAT 2008.

Two Scatter Matrices for Multivariate Nonparametrics. MIMS Workshop on New Directions in Statistics and Biostatistics 2008 (invited speaker).

Invariant Coordinate Selection for Multivariate
Data Analysis - the Package ICS
. useR 2008.

Robust ICA Based on Two Scatter Matrices. ICORS 2008.

Multivariate Models and Their First Four Moments. MANTAWORK09 2009.

Invariant Coordinate Selection for Multivariate Analysis and Multivariate Nonparametrics - the R-Packages ICS and ICSNP. ICORS 2009.

Multivariate Models and Their First Four Moments. WITSME 2009 (invited speaker).

ICS and its Applications in Multivariate Statistics. DagStat2010.

Three Scatter Matrices for ISA. ICORS 2010.

Multivariate Linear L1 Regression for Cluster-Correlated Data. LINSTAT 2010 (invited speaker).

Three Scatter Matrices and Independent Subspace Analysis. CDAM 2010 (invited speaker).

Deflation-based fastICA reloaded. NBBC11.

Supervised Invariant Coordinate Selection. JSM 2011.

Invariant Coordinate Selection and Dimension Reduction. ERCIM 2011 (invited speaker).

On Robustifying Some Blind Source Separation
Methods for Second Order Nonstationary Data. Workshop on "Robust Methods for Dependent Data" 2012 (invited speaker).

On Robustifying some Second Order Blind Source Separation Methods for Nonstationary Time Series. SIS 2012 (invited speaker).

Robust BSS Methods for Nonstationary Time Series. ICORS 2012.

On Robustifying Some Second Order Blind Source Separation Methods for Nonstationary Time Series. ERCIM 2012 (invited speaker).

Separation of Uncorrelated Stationary Time Series Using SOBI. ERCIM 2013 (invited speaker).

Blind Source Separation for Spatial Compositional Data. ERCIM 2014 (invited speaker).

Is it `Plug & Play' or `Plug & Pray' in Robust Multivariate Statistics? ICORS 2015 (invited speaker).

Using Projection Pursuit for Outlier Detection in R: The Package REPPlab. ERCIM 2015 (invited speaker).

 

Other talks:

Two Scatter Matrices for Multivariate Nonparametrics. University of Dortmund, November 2007.

Multivariate Models, PCA, ICS and ICA. Nonparametric Afternoon of STATCORE and the Finnish Society of Biostatistics, November 2008 and Statistics Seminar, University of Alberta, November 2009.

Two Scatter Matrices for Dimension Reduction. Toulouse School of Economics, May 2010.

1,2,3 - On the Use of Scatter Matrices in PCA,
ICS and ISA. University of Turku, September 2010.

Deflation-based FastICA reloaded. Mini-Workshop on Independent Component and Latent Variable Analysis. Technische Universität München, April 2011.

Blind Source Separation for Spatial Compositional Data. Aalto University, March 2015.

Is it `Plug & Play' or `Plug & Pray' in Robust Multivariate Statistics? University of Leuven, May 2016.

SOBI for the Separation of Uncorrelated Stationary Time Series. Aalto University, March 2016.

 

Posters:

One Sample Signed-Rank Tests in the Symmetric IC Model. Nonparametric Statistics and Mixture Models:
Past, Present, and Future 2008.

Deflation-based FastICA reloaded. Eusipco 2011.