1993 …2019

Research output per year

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Research Output

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Working paper
2007

Natural Conjugate Gradient in Variational Inference

Honkela, A., Tornio, M., Raiko, T. & Karhunen, J., 2007, Espoo, Finland, (Helsinki University of Technology, Publications in Computer and Information Science; no. Report E10).

Research output: Working paperProfessional

20 Citations (Scopus)
2006

Building blocks for variational Bayesian learning of latent variable models

Raiko, T., Valpola, H., Harva, M. & Karhunen, J., 2006, Espoo, p. 53, (Publications in Computer and Information Science; no. Report E4).

Research output: Working paperProfessional

21 Citations (Scopus)
2003

Final Technical Report on BSS Models and Methods for Non-Independent BSS

Karhunen, J., Meinecke, F., Valpola, H. & Ziehe, A., 2003, Grenoble, p. 23, (Deliverable D21 of the European Joint Project BLISS (Blind Source Separation and Applications, IST-1999-14190)).

Research output: Working paperProfessional

Final Technical Report on Linear ICA

Pham, D-T., Ziehe, A., Karhunen, J. & Jutten, C., 2003, Grenoble, p. 19, (Deliverable D19 of the European Joint Project BLISS (Blind Source Separation and Applications, IST-1999-14190)).

Research output: Working paperProfessional

Technical Report on Separation Methods for Nonlinear Mixtures

Jutten, C., Karhunen, J., Almeida, L. & Harmeling, S., 2003, Grenoble, p. 23, (Deliverable D29 of the European Joint Project BLISS (Blind Source Separation and Applications, IST-1999-14190)).

Research output: Working paperProfessional

2000

A Complexity Minimization Approach for Estimating Fading Gaussian Channel in CDMA Communications

Cristescu, R., Joutsensalo, J., Karhunen, J. & Oja, E., 2000, p. 527-532, (2nd International Workshop on Independent Component Analysis and Blind Signal Separation (ICA 2000), Helsinki, Finland, June 19-22, 2000).

Research output: Working paperProfessional

Delay Estimation in CDMA Communications Using A FastICA Algorithm

Cristescu, R., Ristaniemi, T., Joutsensalo, J. & Karhunen, J., 2000, p. 105-110, (Second International Workshop on Independent Component Analysis and Blind Signal Separation (ICA 2000), Helsinki, Finland, June 19-22, 2000).

Research output: Working paperProfessional

Nonlinear Independent Component Analysis Using Ensemble Learning: Experiments and Discussion

Valpola, H., Giannakopoulos, X., Honkela, A. & Karhunen, J., 2000, p. 351-356, (Second International Workshop on Independent Component Analysis and Blind Signal Separation (ICA 2000), Helsinki, Finland, June 19-22, 2000).

Research output: Working paperProfessional

Nonlinear Source Separation Using Ensemble Learning and MLP Networks

Lappalainen, H., Honkela, A., Giannakopoulos, X. & Karhunen, J., 2000, p. 187-192, (Symposium 2000 on Adaptive Systems for Signal Processing, Communications, and Control (AS-SPCC), Lake Louise, Alberta, Canada, October 1-4, 2000).

Research output: Working paperProfessional

3 Citations (Scopus)
1999

A Comparison of Neural ICA Algorithms using Real-World Data

Giannakopoulos, X., Karhunen, J. & Oja, E., 1999, (International Joint Conference on Neural Networks (IJCNN'99), Washington, D.C., USA, July 10-16, 1999).

Research output: Working paperProfessional

Local Independent Component Analysis Using Clustering

Karhunen, J. & Malaroiu, S., 1999, p. 43-48, (First International Workshop on Independent Component Analysis and Blind Signal Separation (ICA'99), Aussois, France, January 11-15, 1999).

Research output: Working paperProfessional

Locally Linear Independent Component Analysis

Karhunen, J. & Malaroiu, S., 1999, (International Joint Conference on Neural Networks (IJCNN'99), Washington, D.C., USA, July 10-16, 1999).

Research output: Working paperProfessional

7 Citations (Scopus)
1998

An Experimental Comparison of Neural ICA Algorithms

Giannakopoulos, X., Karhunen, J. & Oja, E., 1998, Berlin, p. 651-656, (International Conference on Artificial Neural Networks (ICANN'98), Skövde, Sweden, September 2-4, 1998).

Research output: Working paperProfessional

Neural Networks for Blind Separation with Unknown Number of Sources

Cichocki, A., Karhunen, J., Kasprzak, W. & Vigário, R., 1998, Espoo, Finland, p. 46, (Helsinki University of Technology, Publications in Computer and Information Science; no. Report A54).

Research output: Working paperProfessional

84 Citations (Scopus)
1997

Blind Source Separation Using Least-Squares Type Adaptive Algorithms

Karhunen, J. & Pajunen, P., 1997, p. 3361-3364, (IEEE 1997 International Conference on Acoustics, Speech, and Signal Processing (ICASSP-97), Munich, Germany, April 21-24, 1997).

Research output: Working paperProfessional

19 Citations (Scopus)

Self-Organizing Maps for Independent Component Analysis

Pajunen, P. & Karhunen, J., 1997, p. 96-99, (Workshop on Self-Organizing Maps (WSOM'97), Espoo, Finland, June 4-6, 1997).

Research output: Working paperProfessional

1996

Image Feature Extraction Using Independent Component Analysis

Hurri, J., Hyvärinen, A., Karhunen, J. & Oja, E., 1996, p. 475-478, (IEEE Nordic Signal Processing Symposium (NORSIG'96), Espoo, Finland, September 24-27, 1996).

Research output: Working paperProfessional

1995

A Class of Neural Networks for Independent Component Analysis

Karhunen, J., Oja, E., Wang, L., Vigario, R. & Joutsensalo, J., 1995, Espoo, p. 29, (Helsinki University of Technology, Laboratory of Computer and Information Science; no. Report A28).

Research output: Working paperProfessional

303 Citations (Scopus)
1993

Nonlinear Multilayer Principal Component Type Subspace Learning Algorithms

Joutsensalo, J. & Karhunen, J., 1993, p. 68-77, (1993 IEEE Workshop on Neural Networks for Signal Processing, Baltimore, USA, September 1993).

Research output: Working paperProfessional

Nonlinear PCA: Algorithms and Applications

Oja, E. & Karhunen, J., 1993, Espoo, p. 25, (Helsinki University of Technology, Laboratory of Computer and Information Science; no. Report A18).

Research output: Working paperProfessional

Representation and Separation of Signals Using Nonlinear PCA Type Learning

Karhunen, J. & Joutsensalo, J., 1993, Espoo, p. 35, (Helsinki University of Technology, Laboratory of Computer and Information Science; no. Report A17).

Research output: Working paperProfessional

266 Citations (Scopus)