Selected Publications

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S. P. Chatzis, Kosmopoulos, D., and Varvarigou, T. A., Robust Sequential Data Modeling Using an Outlier Tolerant Hidden Markov Model, IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 31, no. 9, pp. 1657-1669, 2009.PDF icon ieee-t-pami09.pdf (495.17 KB)
S. P. Chatzis, Kosmopoulos, D., and Varvarigou, T. A., Signal Modeling and Classification Using a Robust Latent Space Model Based on t Distributions, Signal Processing, IEEE Transactions on, vol. 56, pp. 949 -963, 2008.PDF icon ieee-t-sp07.pdf (219.44 KB)
S. P. Chatzis and Kosmopoulos, D. I., A Nonparametric Bayesian Approach Toward Stacked Convolutional Independent Component Analysis, International Conference on Computer Vision. 2015.PDF icon iccv2015.pdf (352.41 KB)
S. Chatzis, Kosmopoulos, D., and Papadourakis, G., A Nonstationary Hidden Markov ModelWith Approximately Infinitely-Long Time-Dependencies, International Symposium on Visual Computing, vol. II. pp. 51-62, 2014.PDF icon isvc.pdf (1.63 MB)
S. P. Chatzis, Kosmopoulos, D., and Varvarigou, T. A., A robust approach towards sequential data modeling and its application in automatic gesture recognition, Acoustics, Speech and Signal Processing, 2008. ICASSP 2008. IEEE International Conference on. pp. 1937-1940, 2008.PDF icon icassp-08.pdf (64 KB)
S. Chatzis and Kosmopoulos, D., A Latent Manifold Markovian Dynamics Gaussian Process, Neural Networks and Learning Systems, IEEE Transactions on, vol. 26, no. 1, pp. 70-83, 2015.PDF icon TNNLS2311073.pdf (666.5 KB)
S. P. Chatzis and Kosmopoulos, D., A variational Bayesian methodology for hidden Markov models utilizing Student's-t mixtures, Pattern Recognition, vol. 44, no. 2, pp. 295 - 306, 2011.PDF icon pat-rec-10.pdf (919.11 KB)
S. P. Chatzis and Kosmopoulos, D. I., A Non-Stationary Infinite Partially Observable Markov Decision Process, International Conference on Artificial Neural Networks. 2014.PDF icon pomdp.pdf (110.83 KB)
S. P. Chatzis and Kosmopoulos, D., Visual Workflow Recognition Using a Variational Bayesian Treatment of Multistream Fused Hidden Markov Models, Circuits and Systems for Video Technology, IEEE Transactions on, vol. 22, no. 7, pp. 1076 -1086, 2012.PDF icon ieee-t-csvt12.pdf (705.09 KB)

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