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ORCIDAapo Hyvärinen
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- affiliation: University of Helsinki, Finland
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2020 – today
- 2024
[c98]Hermanni Hälvä, Jonathan So, Richard E. Turner, Aapo Hyvärinen:
Identifiable Feature Learning for Spatial Data with Nonlinear ICA. AISTATS 2024: 3331-3339- [c97]Hiroshi Morioka, Aapo Hyvärinen:
Causal Representation Learning Made Identifiable by Grouping of Observational Variables. ICML 2024 - 2023
- [j75]Yongjie Zhu
, Tiina Parviainen, Erkka Heinilä, Lauri Parkkonen, Aapo Hyvärinen:
Unsupervised representation learning of spontaneous MEG data with nonlinear ICA. NeuroImage 274: 120142 (2023) - [j74]Aapo Hyvärinen, Ilyes Khemakhem, Hiroshi Morioka:
Nonlinear independent component analysis for principled disentanglement in unsupervised deep learning. Patterns 4(10): 100844 (2023) - [c96]Hiroshi Morioka, Aapo Hyvärinen:
Connectivity-contrastive learning: Combining causal discovery and representation learning for multimodal data. AISTATS 2023: 3399-3426 - [c95]Omar Chehab, Aapo Hyvärinen, Andrej Risteski:
Provable benefits of annealing for estimating normalizing constants: Importance Sampling, Noise-Contrastive Estimation, and beyond. NeurIPS 2023 - [i40]Omar Chehab, Alexandre Gramfort, Aapo Hyvärinen:
Optimizing the Noise in Self-Supervised Learning: from Importance Sampling to Noise-Contrastive Estimation. CoRR abs/2301.09696 (2023) - [i39]Aapo Hyvärinen, Ilyes Khemakhem, Ricardo Pio Monti:
Identifiability of latent-variable and structural-equation models: from linear to nonlinear. CoRR abs/2302.02672 (2023) - [i38]Aapo Hyvärinen, Ilyes Khemakhem, Hiroshi Morioka:
Nonlinear Independent Component Analysis for Principled Disentanglement in Unsupervised Deep Learning. CoRR abs/2303.16535 (2023) - [i37]Omar Chehab, Aapo Hyvärinen, Andrej Risteski:
Provable benefits of annealing for estimating normalizing constants: Importance Sampling, Noise-Contrastive Estimation, and beyond. CoRR abs/2310.03902 (2023) - [i36]Hiroshi Morioka, Aapo Hyvärinen:
Causal Representation Learning Made Identifiable by Grouping of Observational Variables. CoRR abs/2310.15709 (2023) - [i35]Hermanni Hälvä, Jonathan So, Richard E. Turner, Aapo Hyvärinen:
Identifiable Feature Learning for Spatial Data with Nonlinear ICA. CoRR abs/2311.16849 (2023) - 2022
- [j73]Ilmari Kurki, Aapo Hyvärinen, Linda Henriksson:
Dynamics of retinotopic spatial attention revealed by multifocal MEG. NeuroImage 263: 119643 (2022) - [c94]Omar Chehab, Alexandre Gramfort, Aapo Hyvärinen:
The optimal noise in noise-contrastive learning is not what you think. UAI 2022: 307-316 - [c93]Antti Hyttinen, Vitória Barin Pacela, Aapo Hyvärinen:
Binary independent component analysis: a non-stationarity-based approach. UAI 2022: 874-884 - [i34]Omar Chehab, Alexandre Gramfort, Aapo Hyvärinen:
The Optimal Noise in Noise-Contrastive Learning Is Not What You Think. CoRR abs/2203.01110 (2022) - [i33]Aapo Hyvärinen:
Painful intelligence: What AI can tell us about human suffering. CoRR abs/2205.15409 (2022) - 2021
- [j72]Takeru Matsuda, Masatoshi Uehara, Aapo Hyvärinen:
Information criteria for non-normalized models. J. Mach. Learn. Res. 22: 158:1-158:33 (2021) - [j71]Wenkai Xu, Gang Niu, Aapo Hyvärinen, Masashi Sugiyama:
Direction Matters: On Influence-Preserving Graph Summarization and Max-Cut Principle for Directed Graphs. Neural Comput. 33(8): 2128-2162 (2021) - [c92]Hiroshi Morioka, Hermanni Hälvä, Aapo Hyvärinen:
Independent Innovation Analysis for Nonlinear Vector Autoregressive Process. AISTATS 2021: 1549-1557 - [c91]Ilyes Khemakhem, Ricardo Pio Monti, Robert Leech, Aapo Hyvärinen:
Causal Autoregressive Flows. AISTATS 2021: 3520-3528 - [c90]Alexandre Gramfort, Hubert J. Banville, Omar Chehab, Aapo Hyvärinen, Denis A. Engemann:
Learning with self-supervision on EEG data. BCI 2021: 1-2 - [c89]Hermanni Hälvä, Sylvain Le Corff, Luc Lehéricy, Jonathan So, Yongjie Zhu, Elisabeth Gassiat, Aapo Hyvärinen:
Disentangling Identifiable Features from Noisy Data with Structured Nonlinear ICA. NeurIPS 2021: 1624-1633 - [c88]Hugo Richard, Pierre Ablin, Bertrand Thirion, Alexandre Gramfort, Aapo Hyvärinen:
Shared Independent Component Analysis for Multi-Subject Neuroimaging. NeurIPS 2021: 29962-29971 - [i32]Hugo Richard, Pierre Ablin, Aapo Hyvärinen, Alexandre Gramfort, Bertrand Thirion:
Adaptive Multi-View ICA: Estimation of noise levels for optimal inference. CoRR abs/2102.10964 (2021) - [i31]Hermanni Hälvä, Sylvain Le Corff, Luc Lehéricy, Jonathan So, Yongjie Zhu, Elisabeth Gassiat, Aapo Hyvärinen:
Disentangling Identifiable Features from Noisy Data with Structured Nonlinear ICA. CoRR abs/2106.09620 (2021) - [i30]Hugo Richard, Pierre Ablin, Bertrand Thirion, Alexandre Gramfort, Aapo Hyvärinen:
Shared Independent Component Analysis for Multi-Subject Neuroimaging. CoRR abs/2110.13502 (2021) - [i29]Antti Hyttinen, Vitória Barin Pacela, Aapo Hyvärinen:
Binary Independent Component Analysis via Non-stationarity. CoRR abs/2111.15431 (2021) - 2020
- [j70]Hiroshi Morioka, Vince D. Calhoun, Aapo Hyvärinen:
Nonlinear ICA of fMRI reveals primitive temporal structures linked to rest, task, and behavioral traits. NeuroImage 218: 116989 (2020) - [j69]Miika Koskinen, Mikko Kurimo, Joachim Gross, Aapo Hyvärinen, Riitta Hari:
Brain activity reflects the predictability of word sequences in listened continuous speech. NeuroImage 219: 116936 (2020) - [c87]Ilyes Khemakhem, Diederik P. Kingma, Ricardo Pio Monti, Aapo Hyvärinen:
Variational Autoencoders and Nonlinear ICA: A Unifying Framework. AISTATS 2020: 2207-2217 - [c86]Thuc Duy Le, Lin Liu, Kun Zhang, Emre Kiciman, Peng Cui, Aapo Hyvärinen:
Preface: The 2020 ACM SIGKDD Workshop on Causal Discovery. CD@KDD 2020: 1-3 - [c85]Luigi Gresele, Giancarlo Fissore, Adrián Javaloy, Bernhard Schölkopf, Aapo Hyvärinen:
Relative gradient optimization of the Jacobian term in unsupervised deep learning. NeurIPS 2020 - [c84]Ilyes Khemakhem, Ricardo Pio Monti, Diederik P. Kingma, Aapo Hyvärinen:
ICE-BeeM: Identifiable Conditional Energy-Based Deep Models Based on Nonlinear ICA. NeurIPS 2020 - [c83]Hugo Richard, Luigi Gresele, Aapo Hyvärinen, Bertrand Thirion, Alexandre Gramfort, Pierre Ablin:
Modeling Shared responses in Neuroimaging Studies through MultiView ICA. NeurIPS 2020 - [c82]Hiroaki Sasaki, Takashi Takenouchi, Ricardo Pio Monti, Aapo Hyvärinen:
Robust contrastive learning and nonlinear ICA in the presence of outliers. UAI 2020: 659-668 - [c81]Hermanni Hälvä, Aapo Hyvärinen:
Hidden Markov Nonlinear ICA: Unsupervised Learning from Nonstationary Time Series. UAI 2020: 939-948 - [e3]Thuc Duy Le, Lin Liu, Kun Zhang, Emre Kiciman, Peng Cui, Aapo Hyvärinen:
Proceedings of the 2020 KDD Workshop on Causal Discovery (CD@KDD 2020), San Diego, CA, USA, 24 August 2020. Proceedings of Machine Learning Research 127, PMLR 2020 [contents] - [i28]Ilyes Khemakhem, Ricardo Pio Monti, Diederik P. Kingma, Aapo Hyvärinen:
ICE-BeeM: Identifiable Conditional Energy-Based Deep Models. CoRR abs/2002.11537 (2020) - [i27]Hugo Richard, Luigi Gresele, Aapo Hyvärinen, Bertrand Thirion, Alexandre Gramfort, Pierre Ablin:
Modeling Shared Responses in Neuroimaging Studies through MultiView ICA. CoRR abs/2006.06635 (2020) - [i26]Hiroshi Morioka, Aapo Hyvärinen:
Independent innovation analysis for nonlinear vector autoregressive process. CoRR abs/2006.10944 (2020) - [i25]Hermanni Hälvä, Aapo Hyvärinen:
Hidden Markov Nonlinear ICA: Unsupervised Learning from Nonstationary Time Series. CoRR abs/2006.12107 (2020) - [i24]Luigi Gresele, Giancarlo Fissore, Adrián Javaloy, Bernhard Schölkopf, Aapo Hyvärinen:
Relative gradient optimization of the Jacobian term in unsupervised deep learning. CoRR abs/2006.15090 (2020) - [i23]Ricardo Pio Monti, Ilyes Khemakhem, Aapo Hyvärinen:
Autoregressive flow-based causal discovery and inference. CoRR abs/2007.09390 (2020) - [i22]Hubert J. Banville, Omar Chehab, Aapo Hyvärinen, Denis-Alexander Engemann, Alexandre Gramfort:
Uncovering the structure of clinical EEG signals with self-supervised learning. CoRR abs/2007.16104 (2020) - [i21]Ilyes Khemakhem, Ricardo Pio Monti, Robert Leech, Aapo Hyvärinen:
Causal Autoregressive Flows. CoRR abs/2011.02268 (2020)
2010 – 2019
- 2019
- [j68]Saeed Saremi, Aapo Hyvärinen:
Neural Empirical Bayes. J. Mach. Learn. Res. 20: 181:1-181:23 (2019) - [j67]Alexander Y. Zhigalov, Erkka Heinilä, Tiina Parviainen, Lauri Parkkonen, Aapo Hyvärinen:
Decoding attentional states for neurofeedback: Mindfulness vs. wandering thoughts. NeuroImage 185: 565-574 (2019) - [c80]Aapo Hyvärinen, Hiroaki Sasaki, Richard E. Turner:
Nonlinear ICA Using Auxiliary Variables and Generalized Contrastive Learning. AISTATS 2019: 859-868 - [c79]Takeru Matsuda, Aapo Hyvärinen:
Estimation of Non-Normalized Mixture Models. AISTATS 2019: 2555-2563 - [c78]Thuc Duy Le, Jiuyong Li, Kun Zhang, Emre Kiciman, Peng Cui, Aapo Hyvärinen:
Preface: The 2019 ACM SIGKDD Workshop on Causal Discovery. CD@KDD 2019: 1-3 - [c77]Hubert J. Banville, Graeme Moffat, Isabela Albuquerque, Denis-Alexander Engemann, Aapo Hyvärinen, Alexandre Gramfort:
Self-Supervised Representation Learning from Electroencephalography Signals. MLSP 2019: 1-6 - [c76]Ricardo Pio Monti, Kun Zhang, Aapo Hyvärinen:
Causal Discovery with General Non-Linear Relationships using Non-Linear ICA. UAI 2019: 186-195 - [e2]Thuc Duy Le, Jiuyong Li, Kun Zhang, Emre Kiciman, Peng Cui, Aapo Hyvärinen:
Proceedings of the 2019 ACM SIGKDD Workshop on Causal Discovery, CD@KDD 2019, Anchorage, Alaska, USA, August 5, 2019. Proceedings of Machine Learning Research 104, PMLR 2019 [contents] - [i20]Saeed Saremi, Aapo Hyvärinen:
Neural Empirical Bayes. CoRR abs/1903.02334 (2019) - [i19]Ricardo Pio Monti, Kun Zhang, Aapo Hyvärinen:
Causal Discovery with General Non-Linear Relationships Using Non-Linear ICA. CoRR abs/1904.09096 (2019) - [i18]Takeru Matsuda, Masatoshi Uehara, Aapo Hyvärinen:
Information criteria for non-normalized models. CoRR abs/1905.05976 (2019) - [i17]Ilyes Khemakhem, Diederik P. Kingma, Aapo Hyvärinen:
Variational Autoencoders and Nonlinear ICA: A Unifying Framework. CoRR abs/1907.04809 (2019) - [i16]Wenkai Xu, Gang Niu, Aapo Hyvärinen, Masashi Sugiyama:
Direction Matters: On Influence-Preserving Graph Summarization and Max-cut Principle for Directed Graphs. CoRR abs/1907.09588 (2019) - [i15]Hiroaki Sasaki, Takashi Takenouchi, Ricardo Pio Monti, Aapo Hyvärinen:
Robust contrastive learning and nonlinear ICA in the presence of outliers. CoRR abs/1911.00265 (2019) - [i14]Hubert J. Banville, Isabela Albuquerque, Aapo Hyvärinen, Graeme Moffat, Denis-Alexander Engemann, Alexandre Gramfort:
Self-supervised representation learning from electroencephalography signals. CoRR abs/1911.05419 (2019) - 2018
- [c75]Thuc Duy Le, Kun Zhang, Emre Kiciman, Aapo Hyvärinen, Lin Liu:
Preface: The 2018 ACM SIGKDD Workshop on Causal Discovery. CD@KDD 2018: 1-3 - [c74]Ricardo Pio Monti, Aapo Hyvärinen:
A unified probabilistic model for learning latent factors and their connectivities from high-dimensional data . UAI 2018: 300-309 - [e1]Thuc Duy Le, Kun Zhang, Emre Kiciman, Aapo Hyvärinen, Lin Liu:
Proceedings of 2018 ACM SIGKDD Workshop on Causal Discovery, CD@KDD 2018, London, UK, 20 August 2018. Proceedings of Machine Learning Research 92, PMLR 2018 [contents] - [i13]Takeru Matsuda, Aapo Hyvärinen:
Estimation of Non-Normalized Mixture Models and Clustering Using Deep Representation. CoRR abs/1805.07516 (2018) - [i12]Saeed Saremi, Arash Mehrjou, Bernhard Schölkopf, Aapo Hyvärinen:
Deep Energy Estimator Networks. CoRR abs/1805.08306 (2018) - [i11]Aapo Hyvärinen, Hiroaki Sasaki, Richard E. Turner:
Nonlinear ICA Using Auxiliary Variables and Generalized Contrastive Learning. CoRR abs/1805.08651 (2018) - [i10]Ricardo Pio Monti, Aapo Hyvärinen:
A Unified Probabilistic Model for Learning Latent Factors and Their Connectivities from High-Dimensional Data. CoRR abs/1805.09567 (2018) - [i9]Hiroaki Sasaki, Aapo Hyvärinen:
Neural-Kernelized Conditional Density Estimation. CoRR abs/1806.01754 (2018) - 2017
- [j66]Bharath K. Sriperumbudur, Kenji Fukumizu, Arthur Gretton, Aapo Hyvärinen, Revant Kumar:
Density Estimation in Infinite Dimensional Exponential Families. J. Mach. Learn. Res. 18: 57:1-57:59 (2017) - [j65]Hiroaki Sasaki, Takafumi Kanamori, Aapo Hyvärinen, Gang Niu, Masashi Sugiyama:
Mode-Seeking Clustering and Density Ridge Estimation via Direct Estimation of Density-Derivative-Ratios. J. Mach. Learn. Res. 18: 180:1-180:47 (2017) - [j64]Hiroaki Sasaki, Michael Gutmann, Hayaru Shouno, Aapo Hyvärinen:
Simultaneous Estimation of Nongaussian Components and Their Correlation Structure. Neural Comput. 29(11) (2017) - [j63]Haruo Hosoya, Aapo Hyvärinen:
A mixture of sparse coding models explaining properties of face neurons related to holistic and parts-based processing. PLoS Comput. Biol. 13(7) (2017) - [c73]Aapo Hyvärinen, Hiroshi Morioka:
Nonlinear ICA of Temporally Dependent Stationary Sources. AISTATS 2017: 460-469 - [c72]Hande Çelikkanat, Hiroki Moriya, Takeshi Ogawa, Jukka-Pekka Kauppi, Motoaki Kawanabe, Aapo Hyvärinen:
Decoding emotional valence from electroencephalographic rhythmic activity. EMBC 2017: 4143-4146 - [c71]Junichiro Hirayama, Aapo Hyvärinen, Motoaki Kawanabe:
SPLICE: Fully Tractable Hierarchical Extension of ICA with Pooling. ICML 2017: 1491-1500 - 2016
- [j62]Junichiro Hirayama, Aapo Hyvärinen, Shin Ishii:
Sparse and low-rank matrix regularization for learning time-varying Markov networks. Mach. Learn. 105(3): 335-366 (2016) - [j61]Aapo Hyvärinen, Junichiro Hirayama, Vesa Kiviniemi, Motoaki Kawanabe:
Orthogonal Connectivity Factorization: Interpretable Decomposition of Variability in Correlation Matrices. Neural Comput. 28(3): 445-484 (2016) - [j60]Haruo Hosoya, Aapo Hyvärinen:
Learning Visual Spatial Pooling by Strong PCA Dimension Reduction. Neural Comput. 28(7): 1249-1264 (2016) - [c70]Aapo Hyvärinen, Hiroshi Morioka:
Unsupervised Feature Extraction by Time-Contrastive Learning and Nonlinear ICA. NIPS 2016: 3765-3773 - [i8]Aapo Hyvärinen, Hiroshi Morioka:
Unsupervised Feature Extraction by Time-Contrastive Learning and Nonlinear ICA. CoRR abs/1605.06336 (2016) - 2015
- [j59]Junichiro Hirayama, Takeshi Ogawa, Aapo Hyvärinen:
Unifying Blind Separation and Clustering for Resting-State EEG/MEG Functional Connectivity Analysis. Neural Comput. 27(7): 1373-1404 (2015) - [c69]Jouni Puuronen, Aapo Hyvärinen:
Independent component analysis with an inverse problem motivated penalty term. IJCNN 2015: 1-7 - 2014
- [j58]Tatsuya Tashiro, Shohei Shimizu, Aapo Hyvärinen, Takashi Washio:
ParceLiNGAM: A Causal Ordering Method Robust Against Latent Confounders. Neural Comput. 26(1): 57-83 (2014) - [j57]Pavan Ramkumar, Lauri Parkkonen, Aapo Hyvärinen:
Group-level spatial independent component analysis of Fourier envelopes of resting-state MEG data. NeuroImage 86: 480-491 (2014) - [j56]Stephen M. Smith, Aapo Hyvärinen, Gaël Varoquaux, Karla L. Miller, Christian F. Beckmann:
Group-PCA for very large fMRI datasets. NeuroImage 101: 738-749 (2014) - [j55]Jouni Puuronen, Aapo Hyvärinen:
A Bayesian inverse solution using independent component analysis. Neural Networks 50: 47-59 (2014) - [c68]Hiroaki Sasaki, Michael Gutmann, Hayaru Shouno, Aapo Hyvärinen:
Estimating Dependency Structures for non-Gaussian Components with Linear and Energy Correlations. AISTATS 2014: 868-876 - [c67]Junichiro Hirayama, Takeshi Ogawa, Aapo Hyvärinen:
Simultaneous blind separation and clustering of coactivated EEG/MEG sources for analyzing spontaneous brain activity. EMBC 2014: 4932-4935 - [c66]Hiroaki Sasaki, Aapo Hyvärinen, Masashi Sugiyama:
Clustering via Mode Seeking by Direct Estimation of the Gradient of a Log-Density. ECML/PKDD (3) 2014: 19-34 - [c65]Aapo Hyvärinen, Junichiro Hirayama, Motoaki Kawanabe:
Dynamic connectivity factorization: Interpretable decompositions of non-stationarity. PRNI 2014: 1-4 - [r2]Aapo Hyvärinen:
Independent Component Analysis of Images. Encyclopedia of Computational Neuroscience 2014 - [r1]Aapo Hyvärinen:
Topographic Independent Component Analysis. Encyclopedia of Computational Neuroscience 2014 - [i7]Shohei Shimizu, Aapo Hyvärinen, Yoshinobu Kawahara:
A direct method for estimating a causal ordering in a linear non-Gaussian acyclic model. CoRR abs/1408.2038 (2014) - 2013
- [j54]Aapo Hyvärinen, Stephen M. Smith:
Pairwise likelihood ratios for estimation of non-Gaussian structural equation models. J. Mach. Learn. Res. 14(1): 111-152 (2013) - [j53]Hiroaki Sasaki, Michael Gutmann, Hayaru Shouno, Aapo Hyvärinen:
Correlated topographic analysis: estimating an ordering of correlated components. Mach. Learn. 92(2-3): 285-317 (2013) - [j52]Jukka-Pekka Kauppi, Lauri Parkkonen, Riitta Hari, Aapo Hyvärinen:
Decoding magnetoencephalographic rhythmic activity using spectrospatial information. NeuroImage 83: 921-936 (2013) - [i6]Kun Zhang, Heng Peng, Laiwan Chan, Aapo Hyvärinen:
Bridging Information Criteria and Parameter Shrinkage for Model Selection. CoRR abs/1307.2307 (2013) - 2012
- [j51]Michael Gutmann, Aapo Hyvärinen:
Noise-Contrastive Estimation of Unnormalized Statistical Models, with Applications to Natural Image Statistics. J. Mach. Learn. Res. 13: 307-361 (2012) - [c64]Tatsuya Tashiro, Shohei Shimizu, Aapo Hyvärinen, Takashi Washio:
Estimation of Causal Orders in a Linear Non-Gaussian Acyclic Model: A Method Robust against Latent Confounders. ICANN (1) 2012: 491-498 - [c63]Michael Gutmann, Aapo Hyvärinen:
Learning a selectivity-invariance-selectivity feature extraction architecture for images. ICPR 2012: 918-921 - [c62]Hiroaki Sasaki, Michael Gutmann, Hayaru Shouno, Aapo Hyvärinen:
Topographic Analysis of Correlated Components. ACML 2012: 365-378 - [i5]Miika Pihlaja, Michael Gutmann, Aapo Hyvärinen:
A Family of Computationally Efficient and Simple Estimators for Unnormalized Statistical Models. CoRR abs/1203.3506 (2012) - [i4]Kun Zhang, Aapo Hyvärinen:
Source Separation and Higher-Order Causal Analysis of MEG and EEG. CoRR abs/1203.3533 (2012) - [i3]Kun Zhang, Aapo Hyvärinen:
On the Identifiability of the Post-Nonlinear Causal Model. CoRR abs/1205.2599 (2012) - [i2]Patrik O. Hoyer, Aapo Hyvärinen, Richard Scheines, Peter Spirtes, Joseph D. Ramsey, Gustavo Lacerda, Shohei Shimizu:
Causal discovery of linear acyclic models with arbitrary distributions. CoRR abs/1206.3260 (2012) - [i1]Shohei Shimizu, Aapo Hyvärinen, Yutaka Kano, Patrik O. Hoyer:
Discovery of non-gaussian linear causal models using ICA. CoRR abs/1207.1413 (2012) - 2011
- [j50]Shohei Shimizu, Takanori Inazumi, Yasuhiro Sogawa, Aapo Hyvärinen, Yoshinobu Kawahara, Takashi Washio, Patrik O. Hoyer, Kenneth Bollen:
DirectLiNGAM: A Direct Method for Learning a Linear Non-Gaussian Structural Equation Model. J. Mach. Learn. Res. 12: 1225-1248 (2011) - [j49]Aapo Hyvärinen:
Testing the ICA mixing matrix based on inter-subject or inter-session consistency. NeuroImage 58(1): 122-136 (2011) - [j48]Yasuhiro Sogawa, Shohei Shimizu, Teppei Shimamura, Aapo Hyvärinen, Takashi Washio, Seiya Imoto:
Estimating exogenous variables in data with more variables than observations. Neural Networks 24(8): 875-880 (2011) - [c61]Jouni Puuronen, Aapo Hyvärinen:
Hermite Polynomials and Measures of Non-gaussianity. ICANN (2) 2011: 205-212 - [c60]Valero Laparra, Michael Gutmann, Jesús Malo, Aapo Hyvärinen:
Complex-Valued Independent Component Analysis of Natural Images. ICANN (2) 2011: 213-220 - [c59]Michael Gutmann, Aapo Hyvärinen:
Extracting Coactivated Features from Multiple Data Sets. ICANN (1) 2011: 323-330 - [c58]Junichiro Hirayama, Aapo Hyvärinen:
Structural equations and divisive normalization for energy-dependent component analysis. NIPS 2011: 1872-1880 - [c57]Kun Zhang, Aapo Hyvärinen:
A General Linear Non-Gaussian State-Space Model. ACML 2011: 113-128 - 2010
- [j47]Aapo Hyvärinen, Kun Zhang, Shohei Shimizu, Patrik O. Hoyer:
Estimation of a Structural Vector Autoregression Model Using Non-Gaussianity. J. Mach. Learn. Res. 11: 1709-1731 (2010) - [j46]Urs Köster, Aapo Hyvärinen:
A Two-Layer Model of Natural Stimuli Estimated with Score Matching. Neural Comput. 22(9): 2308-2333 (2010) - [j45]Aapo Hyvärinen, Pavan Ramkumar, Lauri Parkkonen, Riitta Hari:
Independent component analysis of short-time Fourier transforms for spontaneous EEG/MEG analysis. NeuroImage 49(1): 257-271 (2010) - [j44]Timo Honkela, Aapo Hyvärinen, Jaakko J. Väyrynen:
WordICA - emergence of linguistic representations for words by independent component analysis. Nat. Lang. Eng. 16(3): 277-308 (2010) - [j43]Aapo Hyvärinen:
Statistical Models of Natural Images and Cortical Visual Representation. Top. Cogn. Sci. 2(2): 251-264 (2010) - [c56]Yasuhiro Sogawa, Shohei Shimizu, Aapo Hyvärinen, Takashi Washio, Teppei Shimamura, Seiya Imoto:
Discovery of Exogenous Variables in Data with More Variables Than Observations. ICANN (1) 2010: 67-76 - [c55]Junichiro Hirayama, Aapo Hyvärinen, Shin Ishii:
Sparse and Low-Rank Estimation of Time-Varying Markov Networks with Alternating Direction Method of Multipliers. ICONIP (1) 2010: 371-379 - [c54]Miika Pihlaja, Michael Gutmann, Aapo Hyvärinen:
A Family of Computationally E cient and Simple Estimators for Unnormalized Statistical Models. UAI 2010: 442-449 - [c53]Kun Zhang, Aapo Hyvärinen:
Source Separation and Higher-Order Causal Analysis of MEG and EEG. UAI 2010: 709-716 - [c52]Aapo Hyvärinen:
Pairwise Measures of Causal Direction in Linear Non-Gaussian Acyclic Models. ACML 2010: 1-16 - [c51]Kun Zhang, Aapo Hyvärinen:
Nonlinear acyclic causal models. NIPS Causality: Objectives and Assessment 2010: 157-164 - [c50]Michael Gutmann, Aapo Hyvärinen:
Noise-contrastive estimation: A new estimation principle for unnormalized statistical models. AISTATS 2010: 297-304
2000 – 2009
- 2009
- [b2]Aapo Hyvärinen, Jarmo Hurri, Patrik O. Hoyer:
Natural Image Statistics - A Probabilistic Approach to Early Computational Vision. Computational Imaging and Vision 39, Springer 2009, ISBN 978-1-84882-490-4, pp. 1-451 - [j42]Shohei Shimizu, Patrik O. Hoyer, Aapo Hyvärinen:
Estimation of linear non-Gaussian acyclic models for latent factors. Neurocomputing 72(7-9): 2024-2027 (2009) - [c49]Michael Gutmann, Aapo Hyvärinen:
Learning reconstruction and prediction of natural stimuli by a population of spiking neurons. ESANN 2009 - [c48]Michael Gutmann, Aapo Hyvärinen:
Learning Features by Contrasting Natural Images with Noise. ICANN (2) 2009: 623-632 - [c47]Jukka Perkiö, Aapo Hyvärinen:
Modelling Image Complexity by Independent Component Analysis, with Application to Content-Based Image Retrieval. ICANN (2) 2009: 704-714 - [c46]Kun Zhang, Heng Peng, Laiwan Chan, Aapo Hyvärinen:
ICA with Sparse Connections: Revisited. ICA 2009: 195-202 - [c45]Urs Köster, Jussi T. Lindgren, Michael Gutmann, Aapo Hyvärinen:
Learning Natural Image Structure with a Horizontal Product Model. ICA 2009: 507-514 - [c44]Urs Köster, Jussi T. Lindgren, Aapo Hyvärinen:
Estimating Markov Random Field Potentials for Natural Images. ICA 2009: 515-522 - [c43]Kun Zhang, Aapo Hyvärinen:
Causality Discovery with Additive Disturbances: An Information-Theoretical Perspective. ECML/PKDD (2) 2009: 570-585 - [c42]Shohei Shimizu, Aapo Hyvärinen, Yoshinobu Kawahara:
A direct method for estimating a causal ordering in a linear non-Gaussian acyclic model. UAI 2009: 506-513 - [c41]Kun Zhang, Aapo Hyvärinen:
On the Identifiability of the Post-Nonlinear Causal Model. UAI 2009: 647-655 - 2008
- [j41]Aapo Hyvärinen:
Optimal Approximation of Signal Priors. Neural Comput. 20(12): 3087-3110 (2008) - [c40]Aapo Hyvärinen, Shohei Shimizu, Patrik O. Hoyer:
Causal modelling combining instantaneous and lagged effects: an identifiable model based on non-Gaussianity. ICML 2008: 424-431 - [c39]Michael Gutmann, Aapo Hyvärinen, Kazuyuki Aihara:
Learning encoding and decoding filters for data representation with a spiking neuron. IJCNN 2008: 243-248 - [c38]Jussi T. Lindgren, Jarmo Hurri, Aapo Hyvärinen:
Unsupervised learning of dependencies between local luminance and contrast in natural images. IJCNN 2008: 356-362 - [c37]Jussi T. Lindgren, Aapo Hyvärinen:
On the learning of nonlinear visual features from natural images by optimizing response energies. IJCNN 2008: 1026-1033 - [c36]Patrik O. Hoyer, Aapo Hyvärinen, Richard Scheines, Peter Spirtes, Joseph D. Ramsey, Gustavo Lacerda, Shohei Shimizu:
Causal discovery of linear acyclic models with arbitrary distributions. UAI 2008: 282-289 - 2007
- [j40]Aapo Hyvärinen:
Some extensions of score matching. Comput. Stat. Data Anal. 51(5): 2499-2512 (2007) - [j39]Maria Asunción Vicente, Patrik O. Hoyer, Aapo Hyvärinen:
Equivalence of Some Common Linear Feature Extraction Techniques for Appearance-Based Object Recognition Tasks. IEEE Trans. Pattern Anal. Mach. Intell. 29(5): 896-900 (2007) - [j38]Aapo Hyvärinen:
Connections Between Score Matching, Contrastive Divergence, and Pseudolikelihood for Continuous-Valued Variables. IEEE Trans. Neural Networks 18(5): 1529-1531 (2007) - [c35]Urs Köster, Aapo Hyvärinen:
A Two-Layer ICA-Like Model Estimated by Score Matching. ICANN (2) 2007: 798-807 - [c34]Shohei Shimizu, Aapo Hyvärinen:
Discovery of Linear Non-Gaussian Acyclic Models in the Presence of Latent Classes. ICONIP (1) 2007: 752-761 - [c33]Jussi T. Lindgren, Jarmo Hurri, Aapo Hyvärinen:
The Statistical Properties of Local Log-Contrast in Natural Images. SCIA 2007: 354-363 - 2006
- [j37]Shohei Shimizu, Aapo Hyvärinen, Patrik O. Hoyer, Yutaka Kano:
Finding a causal ordering via independent component analysis. Comput. Stat. Data Anal. 50(11): 3278-3293 (2006) - [j36]Shohei Shimizu, Patrik O. Hoyer, Aapo Hyvärinen, Antti J. Kerminen:
A Linear Non-Gaussian Acyclic Model for Causal Discovery. J. Mach. Learn. Res. 7: 2003-2030 (2006) - [j35]Aapo Hyvärinen:
Consistency of Pseudolikelihood Estimation of Fully Visible Boltzmann Machines. Neural Comput. 18(10): 2283-2292 (2006) - [c32]Aapo Hyvärinen, Urs Köster:
FastISA: A fast fixed-point algorithm for independent subspace analysis. ESANN 2006: 371-376 - [c31]Patrik O. Hoyer, Shohei Shimizu, Aapo Hyvärinen, Yutaka Kano, Antti J. Kerminen:
New Permutation Algorithms for Causal Discovery Using ICA. ICA 2006: 115-122 - [c30]Shohei Shimizu, Aapo Hyvärinen, Yutaka Kano, Patrik O. Hoyer, Antti J. Kerminen:
Testing Significance of Mixing and Demixing Coefficients in ICA. ICA 2006: 901-908 - [c29]Aapo Hyvärinen, Shohei Shimizu:
A Quasi-stochastic Gradient Algorithm for Variance-Dependent Component Analysis. ICANN (2) 2006: 211-220 - [c28]Aapo Hyvärinen, Jukka Perkiö:
Learning to Segment Any Random Vector. IJCNN 2006: 4167-4172 - [c27]Jussi T. Lindgren, Aapo Hyvärinen:
Emergence of conjunctive visual features by quadratic independent component analysis. NIPS 2006: 897-904 - 2005
- [j34]Aapo Hyvärinen:
Estimation of Non-Normalized Statistical Models by Score Matching. J. Mach. Learn. Res. 6: 695-709 (2005) - [j33]Fabrizio Esposito, Tommaso Scarabino, Aapo Hyvärinen, Johan Himberg, Elia Formisano, Silvia Comani, Gioacchino Tedeschi, Rainer Goebel, Erich Seifritz, Francesco Di Salle:
Independent component analysis of fMRI group studies by self-organizing clustering. NeuroImage 25(1): 193-205 (2005) - [j32]Aapo Hyvärinen:
A unifying model for blind separation of independent sources. Signal Process. 85(7): 1419-1427 (2005) - [c26]Shohei Shimizu, Aapo Hyvärinen, Yutaka Kano, Patrik O. Hoyer:
Discovery of Non-gaussian Linear Causal Models using ICA. UAI 2005: 525-533 - 2004
- [j31]Aapo Hyvärinen, Jarmo Hurri, Jaakko J. Väyrynen:
A unifying framework for natural image statistics: spatiotemporal activity bubbles. Neurocomputing 58-60: 801-806 (2004) - [j30]Jarmo Hurri, Jaakko J. Väyrynen, Aapo Hyvärinen:
Spatiotemporal receptive fields maximizing temporal coherence in natural image sequences. Neurocomputing 58-60: 815-820 (2004) - [j29]Johan Himberg, Aapo Hyvärinen, Fabrizio Esposito:
Validating the independent components of neuroimaging time series via clustering and visualization. NeuroImage 22(3): 1214-1222 (2004) - [j28]Aapo Hyvärinen, Jarmo Hurri:
Blind separation of sources that have spatiotemporal variance dependencies. Signal Process. 84(2): 247-254 (2004) - [c25]Jussi T. Lindgren, Aapo Hyvärinen:
Learning High-level Independent Components of Images through a Spectral Representation. ICPR (2) 2004: 72-75 - 2003
- [j27]Aapo Hyvärinen, Ella Bingham:
Connection between multilayer perceptrons and regression using independent component analysis. Neurocomputing 50: 211-222 (2003) - [j26]Jarmo Hurri, Aapo Hyvärinen:
A two-layer temporal generative model of natural video exhibits complex-cell-like pooling of simple cell outputs. Neurocomputing 52-54: 553-559 (2003) - [j25]Jarmo Hurri, Aapo Hyvärinen:
Simple-Cell-Like Receptive Fields Maximize Temporal Coherence in Natural Video. Neural Comput. 15(3): 663-691 (2003) - [j24]Vesa Kiviniemi, Juha-Heikki Kantola, Jukka Jauhiainen, Aapo Hyvärinen, Osmo Tervonen:
Independent component analysis of nondeterministic fMRI signal sources. NeuroImage 19(2): 253-260 (2003) - [c24]Johan Himberg, Aapo Hyvärinen:
Icasso: software for investigating the reliability of ICA estimates by clustering and visualization. NNSP 2003: 259-268 - 2002
- [j23]Patrik O. Hoyer, Aapo Hyvärinen:
Sparse coding of natural contours. Neurocomputing 44-46: 459-466 (2002) - [j22]Aapo Hyvärinen:
An alternative approach to infomax and independent component analysis. Neurocomputing 44-46: 1089-1097 (2002) - [j21]Shun-ichi Amari, Aapo Hyvärinen, Soo-Young Lee, Te-Won Lee, V. David Sánchez A.:
Blind signal separation and independent component analysis. Neurocomputing 49(1-4): 1-5 (2002) - [j20]Aapo Hyvärinen, Karthikesh Raju:
Imposing sparsity on the mixing matrix in independent component analysis. Neurocomputing 49(1-4): 151-162 (2002) - [j19]Aapo Hyvärinen, Mika Inki:
Estimating Overcomplete Independent Component Bases for Image Windows. J. Math. Imaging Vis. 17(2): 139-152 (2002) - [j18]Aapo Hyvärinen:
Realizations of quantum computing using optical manipulations of atoms. Nat. Comput. 1(2-3): 199-209 (2002) - [c23]Jarmo Hurri, Aapo Hyvärinen:
Receptive Fields Similar to Simple Cells Maximize Temporal Coherence in Natural Video. ICANN 2002: 33-38 - [c22]Jarmo Hurri, Aapo Hyvärinen:
Temporal Coherence, Natural Image Sequences, and the Visual Cortex. NIPS 2002: 141-148 - [c21]Patrik O. Hoyer, Aapo Hyvärinen:
Interpreting Neural Response Variability as Monte Carlo Sampling of the Posterior. NIPS 2002: 277-284 - 2001
- [b1]Aapo Hyvärinen, Juha Karhunen, Erkki Oja:
Independent Component Analysis. Wiley 2001, ISBN 0-471-40540-X, pp. 1-475 - [j17]Aapo Hyvärinen, Patrik O. Hoyer:
Topographic independent component analysis as a model of V1 organization and receptive fields. Neurocomputing 38-40: 1307-1315 (2001) - [j16]Aapo Hyvärinen:
Complexity Pursuit: Separating Interesting Components from Time Series. Neural Comput. 13(4): 883-898 (2001) - [j15]Aapo Hyvärinen, Patrik O. Hoyer, Mika Inki:
Topographic Independent Component Analysis. Neural Comput. 13(7): 1527-1558 (2001) - [j14]Aapo Hyvärinen:
Blind source separation by nonstationarity of variance: a cumulant-based approach. IEEE Trans. Neural Networks 12(6): 1471-1474 (2001) - 2000
- [j13]Ella Bingham, Aapo Hyvärinen:
A Fast Fixed-Point Algorithm for Independent Component Analysis of Complex Valued Signals. Int. J. Neural Syst. 10(1): 1-8 (2000) - [j12]Aapo Hyvärinen, Patrik O. Hoyer:
Emergence of Phase- and Shift-Invariant Features by Decomposition of Natural Images into Independent Feature Subspaces. Neural Comput. 12(7): 1705-1720 (2000) - [j11]Aapo Hyvärinen, Erkki Oja:
Independent component analysis: algorithms and applications. Neural Networks 13(4-5): 411-430 (2000) - [c20]Aapo Hyvärinen, Patrik O. Hoyer, Mika Inki:
Topographic ICA as a Model of Natural Image Statistics. Biologically Motivated Computer Vision 2000: 535-544 - [c19]Ella Bingham, Aapo Hyvärinen:
Fast and robust deflationary separation of complex valued signals. EUSIPCO 2000: 1-4 - [c18]Aapo Hyvärinen, Patrik O. Hoyer, Mika Inki:
Topographic ICA as a Model of V1 Receptive Fields. IJCNN (4) 2000: 83-88 - [c17]Ella Bingham, Aapo Hyvärinen:
ICA of Complex Valued Signals: A Fast and Robust Deflationary Algorithm. IJCNN (3) 2000: 357-362 - [c16]Patrik O. Hoyer, Aapo Hyvärinen:
Feature Extraction from Color and Stereo Images Using ICA. IJCNN (3) 2000: 369-376
1990 – 1999
- 1999
- [j10]Aapo Hyvärinen:
Sparse Code Shrinkage: Denoising of Nongaussian Data by Maximum Likelihood Estimation. Neural Comput. 11(7): 1739-1768 (1999) - [j9]Aapo Hyvärinen, Petteri Pajunen:
Nonlinear independent component analysis: Existence and uniqueness results. Neural Networks 12(3): 429-439 (1999) - [j8]Aapo Hyvärinen:
The Fixed-Point Algorithm and Maximum Likelihood Estimation for Independent Component Analysis. Neural Process. Lett. 10(1): 1-5 (1999) - [j7]Erkki Oja, Aapo Hyvärinen, Patrik O. Hoyer:
Image Feature Extraction and Denoising by Sparse Coding. Pattern Anal. Appl. 2(2): 104-110 (1999) - [j6]Aapo Hyvärinen:
Gaussian moments for noisy independent component analysis. IEEE Signal Process. Lett. 6(6): 145-147 (1999) - [j5]Aapo Hyvärinen:
Fast and robust fixed-point algorithms for independent component analysis. IEEE Trans. Neural Networks 10(3): 626-634 (1999) - [c15]Aapo Hyvärinen, Timo Honkela:
Emotional Disorders in Autonomous Agents? ECAL 1999: 350-354 - [c14]Aapo Hyvärinen, Razvan Cristescu, Erkki Oja:
A fast algorithm for estimating overcomplete ICA bases for image windows. IJCNN 1999: 894-899 - [c13]Aapo Hyvärinen, Patrik O. Hoyer:
Independent subspace analysis shows emergence of phase and shift invariant features from natural images. IJCNN 1999: 1059-1064 - [c12]Patrik O. Hoyer, Aapo Hyvärinen:
Estimating signal-adapted wavelets using sparseness criteria. IJCNN 1999: 2570-2575 - [c11]Aapo Hyvärinen:
Fast ICA for noisy data using Gaussian moments. ISCAS (5) 1999: 57-61 - [c10]Aapo Hyvärinen, Patrik O. Hoyer:
Emergence of Topography and Complex Cell Properties from Natural Images using Extensions of ICA. NIPS 1999: 827-833 - 1998
- [j4]Aapo Hyvärinen:
Independent component analysis in the presence of Gaussian noise by maximizing joint likelihood. Neurocomputing 22(1-3): 49-67 (1998) - [j3]Aapo Hyvärinen, Erkki Oja:
Independent component analysis by general nonlinear Hebbian-like learning rules. Signal Process. 64(3): 301-313 (1998) - [c9]Aapo Hyvärinen, Erkki Oja, Patrik O. Hoyer, Jarmo Hurri:
Image feature extraction by sparse coding and independent component analysis. ICPR 1998: 1268-1273 - [c8]Aapo Hyvärinen, Patrik O. Hoyer, Erkki Oja:
Sparse Code Shrinkage: Denoising by Nonlinear Maximum Likelihood Estimation. NIPS 1998: 473-479 - 1997
- [j2]Aapo Hyvärinen, Erkki Oja:
A Fast Fixed-Point Algorithm for Independent Component Analysis. Neural Comput. 9(7): 1483-1492 (1997) - [c7]Erkki Oja, Juha Karhunen, Aapo Hyvärinen:
From Neural Principal Components to Neural Independent Components. ICANN 1997: 519-528 - [c6]Juha Karhunen, Aapo Hyvärinen, Ricardo Vigário, Jarmo Hurri, Erkki Oja:
Applications of neural blind separation to signal and image processing. ICASSP 1997: 131-134 - [c5]Aapo Hyvärinen:
A family of fixed-point algorithms for independent component analysis. ICASSP 1997: 3917-3920 - [c4]Aapo Hyvärinen:
New Approximations of Differential Entropy for Independent Component Analysis and Projection Pursuit. NIPS 1997: 273-279 - 1996
- [j1]Aapo Hyvärinen, Erkki Oja:
Simple Neuron Models for Independent Component Analysis. Int. J. Neural Syst. 7(6): 671-688 (1996) - [c3]Aapo Hyvärinen:
Purely Logical Neural Principal Component and Independent Component Learning. ICANN 1996: 139-144 - [c2]Aapo Hyvärinen, Erkki Oja:
A neuron that learns to separate one signal from a mixture of independent sources. ICNN 1996: 62-67 - [c1]Aapo Hyvärinen, Erkki Oja:
One-unit Learning Rules for Independent Component Analysis. NIPS 1996: 480-486
Coauthor Index
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