Sotirios Chatzis
Sotirios Chatzis
Assistant Professor @ Cyprus University of Technology
Verified email at cut.ac.cy - Homepage
TitleCited byYear
A fuzzy clustering approach toward hidden Markov random field models for enhanced spatially constrained image segmentation
SP Chatzis, TA Varvarigou
IEEE Transactions on Fuzzy Systems 16 (5), 1351-1361, 2008
1882008
Robust sequential data modeling using an outlier tolerant hidden Markov model
SP Chatzis, DI Kosmopoulos, TA Varvarigou
IEEE transactions on pattern analysis and machine intelligence 31 (9), 1657-1669, 2008
1022008
Echo state Gaussian process
SP Chatzis, Y Demiris
IEEE Transactions on Neural Networks 22 (9), 1435-1445, 2011
882011
A fuzzy c-means-type algorithm for clustering of data with mixed numeric and categorical attributes employing a probabilistic dissimilarity functional
SP Chatzis
Expert systems with applications 38 (7), 8684-8689, 2011
802011
The infinite hidden Markov random field model
SP Chatzis, G Tsechpenakis
IEEE Transactions on Neural Networks 21 (6), 1004-1014, 2010
732010
Robust visual behavior recognition
D Kosmopoulos, SP Chatzis
IEEE Signal Processing Magazine 27 (5), 34-45, 2010
522010
Factor Analysis Latent Subspace Modeling and Robust Fuzzy Clustering Using -Distributions
S Chatzis, T Varvarigou
IEEE Transactions on Fuzzy Systems 17 (3), 505-517, 2008
452008
Signal Modeling and Classification Using a Robust Latent Space Model Based on Distributions
SP Chatzis, DI Kosmopoulos, TA Varvarigou
IEEE Transactions on Signal Processing 56 (3), 949-963, 2008
422008
Forecasting stock market crisis events using deep and statistical machine learning techniques
SP Chatzis, V Siakoulis, A Petropoulos, E Stavroulakis, ...
Expert systems with applications 112, 353-371, 2018
412018
A variational Bayesian methodology for hidden Markov models utilizing Student's-t mixtures
SP Chatzis, DI Kosmopoulos
Pattern Recognition 44 (2), 295-306, 2011
392011
Managing service level agreement contracts in OGSA-based Grids
A Litke, K Konstanteli, V Andronikou, S Chatzis, T Varvarigou
Future Generation Computer Systems 24 (4), 245-258, 2008
352008
Robust fuzzy clustering using mixtures of Student’st distributions
S Chatzis, T Varvarigou
Pattern Recognition Letters 29 (13), 1901-1905, 2008
332008
Numerical optimization using synergetic swarms of foraging bacterial populations
SP Chatzis, S Koukas
Expert Systems with Applications 38 (12), 15332-15343, 2011
322011
A nonparametric Bayesian approach toward robot learning by demonstration
SP Chatzis, D Korkinof, Y Demiris
Robotics and Autonomous Systems 60 (6), 789-802, 2012
282012
A novel corporate credit rating system based on Student’st hidden Markov models
A Petropoulos, SP Chatzis, S Xanthopoulos
Expert Systems with Applications 53, 87-105, 2016
272016
Nonparametric Bayesian multitask collaborative filtering
S Chatzis
Proceedings of the 22nd ACM international conference on Information …, 2013
272013
A conditional random field-based model for joint sequence segmentation and classification
SP Chatzis, DI Kosmopoulos, P Doliotis
Pattern recognition 46 (6), 1569-1578, 2013
252013
Nonparametric mixtures of Gaussian processes with power-law behavior
SP Chatzis, Y Demiris
IEEE transactions on neural networks and learning systems 23 (12), 1862-1871, 2012
232012
Hidden Markov models with nonelliptically contoured state densities
SP Chatzis
IEEE transactions on pattern analysis and machine intelligence 32 (12), 2297 …, 2010
222010
Recurrent latent variable networks for session-based recommendation
SP Chatzis, P Christodoulou, AS Andreou
Proceedings of the 2nd Workshop on Deep Learning for Recommender Systems, 38-45, 2017
212017
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