Erkki Oja

Research outputs

  1. 2016
  2. Published

    Low-rank doubly stochastic matrix decomposition for cluster analysis

    Yang, Z., Corander, J. & Oja, E., 1 Oct 2016, In : Journal of Machine Learning Research. 17, 25 p.

    Research output: Contribution to journalArticle

  3. Published

    Empirical evaluation of bayesian optimization in parametric tuning of chaotic systems

    Abbas, M., Ilin, A., Solonen, A., Hakkarainen, J., Oja, E. & Järvinen, H., 2016, In : INTERNATIONAL JOURNAL FOR UNCERTAINTY QUANTIFICATION. 6, 6, p. 467-485

    Research output: Contribution to journalArticle

  4. 2015
  5. Published

    Learning the Information Divergence

    Dikmen, O., Yang, Z. & Oja, E., 2015, In : IEEE Transactions on Pattern Analysis and Machine Intelligence. 37, 7, p. 1442-1454

    Research output: Contribution to journalArticle

  6. Published

    Understanding emotional impact of images using Bayesian multiple kernel learning

    Zhang, H., Gönen, M., Yang, Z. & Oja, E., 2015, In : Neurocomputing. 165, 00, p. 3-13

    Research output: Contribution to journalArticle

  7. 2014
  8. Published

    Adaptive multiplicative updates for quadratic nonnegative matrix factorization

    Zhang, H., Yang, Z. & Oja, E., 2014, In : Neurocomputing. 134, p. 206-213

    Research output: Contribution to journalArticle

  9. Published

    Improving Cluster Analysis by Co-initializations

    Zhang, H., Yang, Z. & Oja, E., 2014, In : Pattern Recognition Letters. 45, p. 71-77

    Research output: Contribution to journalArticle

  10. Published

    Medical document mining combining image exploration and text characterization

    Gonçalves, N., Oja, E. & Vigário, R., 2014, International Conference on Discovery Science, {DS 2014}, Bled, Slovenia, 7 October 2014 - 10 October 2014. Dzeroski, S. A. & Panceand Kocev, D. A. (eds.). p. 99-110

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  11. Published

    PicSOM Experiments in TRECVID 2014

    Ishikawa, S., Koskela, M., Sjöberg, M., Anwer, R. M., Laaksonen, J. & Oja, E., 2014, TRECVID workshop, TRECVID, Orlando, USA, November 10-12 2014.

    Research output: Chapter in Book/Report/Conference proceedingConference contributionProfessional

  12. 2013
  13. Published

    Affective Abstract Image Classification and Retrieval using Multiple Kernel Learning

    Zhang, H., Yang, Z., Gönen, M., Koskela, M., Laaksonen, J., Honkela, T. & Oja, E., 2013, 20th International Conference on Neural Information Processing (ICONIP 2013) Daegu, Korea, November 3-7, 2013,. Daegu

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  14. Published

    Multiplicative Updates for Learning with Stochastic Matrices

    Zhu, Z., Yang, Z. & Oja, E., 2013, 18th conference Scandinavian Conferences on Image Analysis (SCIA 2013) Espoo, Finland, June 17-20, 2013. Espoo, p. 143-152

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  15. Published

    PicSOM Experiments in TRECVID 2013

    Ishikawa, S., Koskela, M., Sjöberg, M., Laaksonen, J., Oja, E., Amid, E., Palomäki, K., Mesaros, A. & Kurimo, M., 2013, TRECVID 2013 Workshop, Gaithersburg, USA, November 20-22, 2013. Gaithersburg

    Research output: Chapter in Book/Report/Conference proceedingConference contributionProfessional

  16. Published

    Predicting Emotional States of Images Using Bayesian Multiple Kernel Learning

    Zhang, H., Gönen, M., Yang, Z. & Oja, E., 2013, 20th International Conference on Neural Information Processing (ICONIP 2013), Daegu, Korea, November 3-7, 2013. Daegu

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  17. 2012
  18. Published

    A comparison of algorithms for separation of synchronous subspaces

    Almeida, M., Bioucas-Dias, J., Vigário, R. & Oja, E., 2012, In : BULLETIN OF THE POLISH ACADEMY OF SCIENCES: TECHNICAL SCIENCES. 60, 3, p. 455-460

    Research output: Contribution to journalArticle

  19. Published

    Adaptive Multiplicative Updates for Projective Nonnegative Matrix Factorization

    Zhang, H., Yang, Z. & Oja, E., 2012, ICONIP 19th International Conference on Neural Information Processing (ICONIP 2012) ICONIP, Doha, Qatar, November 12-15, 2012. Doha, p. 277-284

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  20. Published

    Clustering by Low-Rank Doubly Stochastic Matrix Decomposition

    Yang, Z. & Oja, E., 2012, 29th International Conference on Machine Learning (ICML2012), Edinburgh, United Kingdom, June 26-July 1, 2012. Edinburgh: ACM

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  21. Published

    Clustering by Nonnegative Matrix Factorization Using Graph Random Walk

    Yang, Z., Hao, T., Dikmen, O., Chen, X. & Oja, E., 2012, NIPS Advances in Neural Information Processing Systems 25 (NIPS 2012) NIPS, Lake Tahoe, USA, December 3-8, 2012. Lake Tahoe, p. 1088-1096

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  22. Published

    Consistency and asymptotic normality of FastICA and bootstrap FastICA

    Reyhani, N., Ylipaavalniemi, J., Vigário, R. & Oja, E., 2012, In : Signal Processing. 92, 8, p. 1767-1778

    Research output: Contribution to journalArticle

  23. Published

    On Closure Parameter Estimation in Chaotic Systems

    Hakkarainen, J., Ilin, A., Solonen, A., Laine, M., Haario, H., Tamminen, J., Oja, E. & Järvinen, H., 2012, In : NONLINEAR PROCESSES IN GEOPHYSICS. 19, p. 127-143

    Research output: Contribution to journalArticle

  24. Published

    Online Projective Nonnegative Matrix Factorization for Large Datasets

    Yang, Z., Zhang, H. & Oja, E., 2012, ICONIP 19th International Conference on Neural Information Processing (ICONIP 2012) ICONIP, Doha, Qatar, November 12-15, 2012. Doha, p. 285-290

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  25. Published

    Pairwise Clustering with t-PLSI

    Zhang, H., Hao, T., Yang, Z. & Oja, E., 2012, ICANN 22nd International Conference on Artificial Neural Networks (ICANN 2012) ICANN, Lausanne, Switzerland, September 11-14, 2012. Lausanne, p. 411-418

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  26. Published

    PicSOM Experiments in TRECVID 2012

    Sjöberg, M., Ishikawa, S., Koskela, M., Laaksonen, J. & Oja, E., 2012, TRECVID 2012 Workshop, Gaithersburg, USA, November 26-28, 2012. Gaithersburg

    Research output: Chapter in Book/Report/Conference proceedingConference contributionProfessional

  27. Published

    Quadratic Nonnegative Matrix Factorization

    Yang, Z. & Oja, E., 2012, In : Pattern Recognition. 45, 4, p. 1500-1510

    Research output: Contribution to journalArticle

  28. Published

    Selecting beta-divergence for Nonnegative Matrix Factorization by Score Matching

    Lu, Z., Yang, Z. & Oja, E., 2012, ICANN 22nd International Conference on Artificial Neural Networks (ICANN 2012) ICANN, Lausanne, Switzerland, September 11-14, 2012. Lausanne, p. 419-426

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  29. 2011
  30. Published

    A Multimodal Information Collector for Content-Based Image Retrieval System

    Zhang, H., Sjöberg, M., Laaksonen, J. & Oja, E., 2011, ICONIP 18th International Conference on Neural Information Processing (ICONIP 2011) ICONIP. p. 737-746

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  31. Published

    Effect of Dimensionality Reduction on Different Distance Measures in Document Clustering

    Paukkeri, M-S., Kivimäki, I., Tirunagari, S., Oja, E. & Honkela, T., 2011, ICONIP 2011, Shanghai, China, November 13-17, 2011. Berlin, Heidelberg, p. 167-176

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  32. Published

    GPU-Accelerated and Parallelized ELM Ensembles for Large-scale Regression

    van Heeswijk, M., Miche, Y., Oja, E. & Lendasse, A., 2011, In : Neurocomputing. 74, 16, p. 2430-2437

    Research output: Contribution to journalArticle

  33. Published

    Kullback-Leibler Divergence for Nonnegative for Nonnegative Matrix Factorization

    Yang, Z., Zhang, H., Yuan, Z. & Oja, E., 2011, 21st International Conference on Artificial Neural Networks. Espoo, p. 14-17

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  34. Published

    Non-Gaussian Component Analysis using Density Gradient Covariance Matrix

    Reyhani, N. & Oja, E., 2011, IJCNN The 2011 International Joint Conference on Neural Networks (IJCNN 2011) IJCNN. IEEE, p. 966-972

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  35. Published

    PicSOM Experiments in TRECVID 2011

    Sjöberg, M., Ishikawa, S., Koskela, M., Laaksonen, J. & Oja, E., 2011, The TRECVID 2011 Workshop. Gaithersburg

    Research output: Chapter in Book/Report/Conference proceedingConference contributionProfessional

  36. Published
  37. Published
  38. 2010
  39. Published

    Automatic Rank Determination in Projective Nonnegative Matrix Factorization

    Yang, Z., Zhu, Z. & Oja, E., 2010, The 9th International Conference on Latent Variable Analysis and Signal Separation (LVA2010). Saint Malo, p. 514-521

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  40. Published

    Estimation of ECHAM5 climate model closure parameters with adaptive MCMC

    Järvinen, H., Räisänen, P., Laine, M., Tamminen, J., Ilin, A., Oja, E., Solonen, A. & Haario, H., 2010, In : ASTROPHYSICS AND SPACE SCIENCES TRANSACTIONS. 10, 5, p. 11951-11973

    Research output: Contribution to journalArticle

  41. Published

    Extending Self-Organizing Maps with Uncertainty Information of Probabilistic PCA

    Sovilj, D., Raiko, T. & Oja, E., 2010, IJCNN 2010. Barcelona, p. 1915-1921

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  42. Published

    Linear and Nonlinear Projective Nonnegative Matrix Factorization

    Yang, Z. & Oja, E., 2010, In : IEEE Transactions on Neural Networks. 21, 5, p. 734-749

    Research output: Contribution to journalArticle

  43. Published

    Linear expansions with nonlinear cost functions: modeling, representation, and partitioning

    Oja, E., Ilin, A., Luttinen, J. & Yang, Z., 2010, WCCI 2010, Barcelona: Plenary and Invited Lectures. Barcelona: IEEE Press, p. 115

    Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

  44. Published

    Multiplicative Updates for t-SNE

    Yang, Z., Wang, C. & Oja, E., 2010, MLSP The 20th IEEE International Workshop on Machine Learning For Signal Processing (MLSP2010) MLSP. Kittilä: IEEE, p. 19-23

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  45. Published
  46. Published

    Proceedings of the 2010 IEEE International Workshop on Machine Learning for Signal Processing (MLSP 2010)

    Kaski, S., Miller, D. J., Oja, E. & Honkela, A., 2010, Piscataway, NJ: IEEE.

    Research output: Book/ReportAnthology

  47. Published

    Solving Large Regression Problems using an Ensemble of GPU-accelerated ELMs

    van Heeswijk, M., Miche, Y., Oja, E. & Lendasse, A., 2010, ESANN ESANN2010: 18th European Symposium on Artificial Neural Networks, Computational Intelligence and Machine Learning (ESANN). Verleysen, M. (ed.). Bruges: d-side Publications, p. 309-314

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  48. 2009
  49. Published

    Adaptive Ensemble Models of Extreme Learning Machines for Time Series Prediction.

    van Heeswijk, M., Miche, Y., Lindh-Knuutila, T., Hilbers, P. A. J., Honkela, T., Oja, E. & Lendasse, A., 2009, ICANN (2). Alippi, C., Polycarpou, M. M., Panayiotou, C. G. & Ellinas, G. (eds.). p. 305-314

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  50. Published

    Heavy-Tailed Symmetric Stochastic Neighbor Embedding

    Yang, Z., King, I., Xu, Z. & Oja, E., 2009, Advances in Neural Information Processing Systems 22 (NIPS2009). Vancouver, p. 2169-2177

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  51. Published

    Projective Nonnegative Matrix Factorization with $\alpha$-Divergence

    Yang, Z. & Oja, E., 2009, 19th International Conference on Artificial Neural Networks. Limassol, p. 20-29

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  52. 2008
  53. Published

    BSS and ICA in neuroinformatics: from current practises to open challenges

    Vigário, R. & Oja, E., 2008, In : Reviews in Biomedical Engineering. 1, p. 50-61

    Research output: Contribution to journalArticle

  54. Published

    Macadamia: Master's Programme in Machine Learning and Data Mining

    Raiko, T., Puolamäki, K., Karhunen, J., Hollmén, J., Honkela, A., Kaski, S., Mannila, H., Oja, E. & Simula, O., 2008, Teaching Machine Learning - Workshop on Open Problems and New Directions. Jacquemont, S. & Higuera, C. D. L. (eds.). Saint-'Etienne

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  55. Published

    Randomized Hough Transform

    Xu, L. & Oja, E., 2008, Encyclopedia of Artificial Intelligence. Dopico, J. R. R., Dorado, J. & Pazos, A. (eds.). USA

    Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

  56. 2007
  57. Published

    Finding interesting climate phenomena by exploratory statistical techniques

    Ilin, A., Valpola, H. & Oja, E., 2007, Fifth Conference on Artificial Intelligence Applications to Environmental Science, 5AI, as part of the 87th Annual Meeting of the American Meteorological Society, San Antonio, TX, USA, January 2007.

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  58. Published

    Speed and Accuracy Enhancement of Linear ICA Techniques Using Rational Nonlinear Functions

    Tichavsky, P., Koldovski, Z. & Oja, E., 2007, 7th International Conference on Independent Component Analysis and Signal Separation. Davies, M. E., James, C. C., Abdallah, S. A. & Plumbley, M. D. (eds.). Berliini, p. 285-292

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  59. Published

    Time series prediction competition: The CATS benchmark

    Lendasse, A., Oja, E., Simula, O. & Verleysen, M., 2007, In : Neurocomputing. 70, 13-15, p. 2325-2329

    Research output: Contribution to journalArticle

  60. 2006
  61. Published

    Artifical Neural Networks - ICANN 2006, Volume II, Lecture Notes in Computer Science, 4132

    Kollias, S., Stafylopatis, A., Duch, W. & Oja, E., 2006, Berlin, Germany.

    Research output: Book/ReportAnthology

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