Sotirios P. Chatzis: search on Z-Library

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1

Forecasting stock market crisis events using deep and statistical machine learning techniques

Chatzis, Sotirios P., Siakoulis, Vassilis, Petropoulos, Anastasios, Stavroulakis, Evangelos, Vlachogiannakis, Nikos

Journal:

Expert Systems with Applications

Year:

2018

Language:

english

File:

PDF, 10.34 MB

english, 2018

2

A Stacked Generalization System for Automated FOREX Portfolio Trading

Petropoulos, Anastasios, Chatzis, Sotirios P., Siakoulis, Vasilis, Vlachogiannakis, Nikos

Journal:

Expert Systems with Applications

Year:

2017

Language:

english

File:

PDF, 7.81 MB

english, 2017

3

Behavioral biometrics & continuous user authentication on mobile devices: A survey

Stylios, Ioannis, Kokolakis, Spyros, Thanou, Olga, Chatzis, Sotirios

Journal:

Information Fusion

Year:

2021

File:

PDF, 954 KB

2021

4

Deep Learning with t -Exponential Bayesian Kitchen Sinks

Partaourides, Harris, Chatzis, Sotirios

Journal:

Expert Systems with Applications

Year:

2018

Language:

english

File:

PDF, 7.40 MB

english, 2018

5

Renewable energy integration through optimal unit commitment and electricity storage in weak power networks

Nikolaidis, Pavlos, Chatzis, Sotirios, Poullikkas, Andreas

Journal:

International Journal of Sustainable Energy

Year:

2018

Language:

english

File:

PDF, 2.16 MB

english, 2018

6

[IEEE 2018 IEEE Security and Privacy Workshops (SPW) - San Francisco, CA, USA (2018.5.24-2018.5.24)] 2018 IEEE Security and Privacy Workshops (SPW) - The Good, the Bad and the Bait: Detecting and Characterizing Clickbait on YouTube

Zannettou, Savvas, Chatzis, Sotirios, Papadamou, Kostantinos, Sirivianos, Michael

Year:

2018

Language:

english

File:

PDF, 868 KB

english, 2018

7

A nonparametric Bayesian approach toward robot learning by demonstration

Sotirios P. Chatzis, Dimitrios Korkinof, Yiannis Demiris

Journal:

Robotics and Autonomous Systems

Year:

2012

Language:

english

File:

PDF, 1.60 MB

english, 2012

8

A variational Bayesian methodology for hidden Markov models utilizing Student's-t mixtures

Sotirios P. Chatzis, Dimitrios I. Kosmopoulos

Journal:

Pattern Recognition

Year:

2011

Language:

english

File:

PDF, 429 KB

english, 2011

9

A novel corporate credit rating system based on Student’s-t hidden Markov models

Petropoulos, Anastasios, Chatzis, Sotirios P., Xanthopoulos, Stylianos

Journal:

Expert Systems with Applications

Year:

2016

Language:

english

File:

PDF, 2.96 MB

english, 2016

10

Gaussian Process-Mixture Conditional Heteroscedasticity

Platanios, Emmanouil A., Chatzis, Sotirios P.

Journal:

IEEE Transactions on Pattern Analysis and Machine Intelligence

Year:

2014

Language:

english

File:

PDF, 1.27 MB

english, 2014

11

t-Exponential Memory Networks for Question-Answering Machines

Tolias, Kyriakos, Chatzis, Sotirios P.

Journal:

IEEE Transactions on Neural Networks and Learning Systems

Year:

2018

Language:

english

File:

PDF, 3.77 MB

english, 2018

12

The Infinite Hidden Markov Random Field Model

Chatzis, Sotirios P, Tsechpenakis, Gabriel

Journal:

IEEE Transactions on Neural Networks

Year:

2010

Language:

english

File:

PDF, 934 KB

english, 2010

13

The Infinite-Order Conditional Random Field Model for Sequential Data Modeling

Chatzis, Sotirios P., Demiris, Yiannis

Journal:

IEEE Transactions on Pattern Analysis and Machine Intelligence

Year:

2013

Language:

english

File:

PDF, 1.03 MB

english, 2013

14

[IEEE ICASSP 2008 - 2008 IEEE International Conference on Acoustics, Speech and Signal Processing - Las Vegas, NV, USA (2008.03.31-2008.04.4)] 2008 IEEE International Conference on Acoustics, Speech and Signal Processing - A robust approach towards sequential data modeling and its application in automatic gesture recognition

Chatzis, Sotirios, Kosmopoulos, Dimitrios I., Varvarigou, Theodora

Year:

2008

Language:

english

File:

PDF, 105 KB

english, 2008

15

[IEEE ICASSP 2018 - 2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) - Calgary, AB (2018.4.15-2018.4.20)] 2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) - Indian Buffet Process Deep Generative Models for Semi-Supervised Classification

Chatzis, Sotirios P.

Year:

2018

Language:

english

File:

PDF, 274 KB

english, 2018

16

A method for training finite mixture models under a fuzzy clustering principle

Sotirios Chatzis

Journal:

Fuzzy Sets and Systems

Year:

2010

Language:

english

File:

PDF, 210 KB

english, 2010

17

[IEEE 2009 IEEE 12th International Conference on Computer Vision (ICCV) - Kyoto (2009.09.29-2009.10.2)] 2009 IEEE 12th International Conference on Computer Vision - The infinite Hidden Markov random field model

Chatzis, Sotirios P, Tsechpenakis, Gabriel

Year:

2009

Language:

english

File:

PDF, 560 KB

english, 2009

18

[ACM Press the 18th Panhellenic Conference - Athens, Greece (2014.10.02-2014.10.04)] Proceedings of the 18th Panhellenic Conference on Informatics - PCI '14 - Developing Public Transport Network systems

Kosmopoulos, D. I., Kalohristianakis, M., Malamos, A., Chatzis, Sotirios, Pternea, M., Kepaptsoglou, K., Karlaftis, M.

Year:

2014

Language:

english

File:

PDF, 3.86 MB

english, 2014

19

Latent subspace modeling of sequential data under the maximum entropy discrimination framework

Chatzis, Sotirios P.

Journal:

Year:

2018

Language:

english

File:

PDF, 780 KB

english, 2018

20

Maximum Entropy Discrimination Poisson Regression for Software Reliability Modeling

Chatzis, Sotirios P., Andreou, Andreas S.

Journal:

IEEE Transactions on Neural Networks and Learning Systems

Year:

2015

Language:

english

File:

PDF, 1.46 MB

english, 2015

21

A Markov random field-regulated Pitman–Yor process prior for spatially constrained data clustering

Chatzis, Sotirios P.

Journal:

Pattern Recognition

Year:

2013

Language:

english

File:

PDF, 827 KB

english, 2013

22

[IEEE 2007 IEEE International Conference on Signal Processing and Communications - Dubai, United Arab Emirates (2007.11.24-2007.11.27)] 2007 IEEE International Conference on Signal Processing and Communications - A Robust to Outliers Hidden Markov Model with Application in Text-Dependent Speaker Identification

Chatzis, Sotirios, Varvarigou, Theodora

Year:

2007

Language:

english

File:

PDF, 278 KB

english, 2007

23

[IEEE ICASSP 2017 - 2017 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) - New Orleans, LA, USA (2017.3.5-2017.3.9)] 2017 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) - Recurrent latent variable conditional heteroscedasticity

Chatzis, Sotirios P.

Year:

2017

Language:

english

File:

PDF, 289 KB

english, 2017

24

A reservoir-driven non-stationary hidden Markov model

Sotirios P. Chatzis, Yiannis Demiris

Journal:

Pattern Recognition

Year:

2012

Language:

english

File:

PDF, 404 KB

english, 2012

25

A latent variable Gaussian process model with Pitman–Yor process priors for multiclass classification

Chatzis, Sotirios P.

Journal:

Year:

2013

Language:

english

File:

PDF, 310 KB

english, 2013

26

[IEEE 2016 International Conference on Optical Network Design and Modeling (ONDM) - Cartagena, Spain (2016.5.9-2016.5.12)] 2016 International Conference on Optical Network Design and Modeling (ONDM) - A data-driven QoT decision approach for multicast connections in metro optical networks

Panayiotou, Tania, Ellinas, Georgios, Chatzis, Sotirios P.

Year:

2016

Language:

english

File:

PDF, 396 KB

english, 2016

27

A possibilistic clustering approach toward generative mixture models

Sotirios P. Chatzis, Gavriil Tsechpenakis

Journal:

Pattern Recognition

Year:

2012

Language:

english

File:

PDF, 350 KB

english, 2012

28

[IEEE 2015 23rd Telecommunications Forum Telfor (TELFOR) - Belgrade, Serbia (2015.11.24-2015.11.26)] 2015 23rd Telecommunications Forum Telfor (TELFOR) - Mobile phones & behavioral modalities: Surveying users' practices

Stylios, Ioannis C., Chatzis, Sotirios, Thanou, Olga, Kokolakis, Spyros

Year:

2015

Language:

english

File:

PDF, 420 KB

english, 2015

29

[IEEE 2018 Innovations in Intelligent Systems and Applications (INISTA) - Thessaloniki (2018.7.3-2018.7.5)] 2018 Innovations in Intelligent Systems and Applications (INISTA) - A Recurrent Latent Variable Model for Supervised Modeling of High-Dimensional Sequential Data

Christodoulou, Panayiotis, Chatzis, Sotirios P., Andreou, Andreas S.

Year:

2018

Language:

english

File:

PDF, 587 KB

english, 2018

30

Deformable probability maps: Probabilistic shape and appearance-based object segmentation

Gavriil Tsechpenakis, Sotirios P. Chatzis

Journal:

Computer Vision and Image Understanding

Year:

2011

Language:

english

File:

PDF, 2.21 MB

english, 2011

31

Maximum entropy discrimination factor analyzers

Chatzis, Sotirios P.

Journal:

Year:

2016

Language:

english

File:

PDF, 467 KB

english, 2016

32

A fuzzy c-means-type algorithm for clustering of data with mixed numeric and categorical attributes employing a probabilistic dissimilarity functional

Sotirios P. Chatzis

Journal:

Expert Systems with Applications

Year:

2011

Language:

english

File:

PDF, 224 KB

english, 2011

33

[ACM Press the 2nd Workshop - Como, Italy (2017.08.27-2017.08.27)] Proceedings of the 2nd Workshop on Deep Learning for Recommender Systems - DLRS 2017 - Recurrent Latent Variable Networks for Session-Based Recommendation

Chatzis, Sotirios P., Christodoulou, Panayiotis, Andreou, Andreas S.

Year:

2017

Language:

english

File:

PDF, 754 KB

english, 2017

34

A sparse nonparametric hierarchical Bayesian approach towards inductive transfer for preference modeling

Sotirios P. Chatzis, Yiannis Demiris

Journal:

Expert Systems with Applications

Year:

2012

Language:

english

File:

PDF, 796 KB

english, 2012

35

[IEEE 2011 IEEE 23rd International Conference on Tools with Artificial Intelligence (ICTAI) - Boca Raton, FL, USA (2011.11.7-2011.11.9)] 2011 IEEE 23rd International Conference on Tools with Artificial Intelligence - The One-Hidden Layer Non-parametric Bayesian Kernel Machine

Chatzis, Sotirios P., Korkinof, Dimitrios, Demiris, Yiannis

Year:

2011

Language:

english

File:

PDF, 251 KB

english, 2011

36

[IEEE 2018 International Conference on Optical Network Design and Modeling (ONDM) - Dublin, Ireland (2018.5.14-2018.5.17)] 2018 International Conference on Optical Network Design and Modeling (ONDM) - On learning bandwidth allocation models for time-varying traffic in flexible optical networks

Panayiotou, Tania, Manousakis, Konstantinos, Chatzis, Sotirios P., Ellinas, Georgios

Year:

2018

Language:

english

File:

PDF, 162 KB

english, 2018

37

Margin-maximizing classification of sequential data with infinitely-long temporal dependencies

Chatzis, Sotirios P.

Journal:

Expert Systems with Applications

Year:

2013

Language:

english

File:

PDF, 759 KB

english, 2013

38

A Quantum-Statistical Approach Toward Robot Learning by Demonstration

Chatzis, Sotirios P., Korkinof, Dimitrios, Demiris, Yiannis

Journal:

IEEE Transactions on Robotics

Year:

2012

Language:

english

File:

PDF, 1.05 MB

english, 2012

39

A Data-Driven Bandwidth Allocation Framework with QoS Considerations for EONs

Panayiotou, Tania, Manousakis, Konstantinos, Chatzis, Sotirios, Ellinas, Georgios

Journal:

Journal of Lightwave Technology

Year:

2019

File:

PDF, 745 KB

2019

40

The echo state conditional random field model for sequential data modeling

Sotirios P. Chatzis, Yiannis Demiris

Journal:

Expert Systems with Applications

Year:

2012

Language:

english

File:

PDF, 606 KB

english, 2012

41

Corrigendum to “Maximum-margin classification of sequential data with infinitely-long temporal dependencies” [Exp. Syst. Appl. 40 (11) (2013) 4519–4527]

Chatzis, Sotirios P.

Journal:

Expert Systems with Applications

Year:

2013

Language:

english

File:

PDF, 214 KB

english, 2013

42

A hidden Markov model with dependence jumps for predictive modeling of multidimensional time-series

Petropoulos, Anastasios, Chatzis, Sotirios P., Xanthopoulos, Stelios

Journal:

Information Sciences

Year:

2017

Language:

english

File:

PDF, 1.25 MB

english, 2017

43

The copula echo state network

Sotirios P. Chatzis, Yiannis Demiris

Journal:

Pattern Recognition

Year:

2012

Language:

english

File:

PDF, 598 KB

english, 2012

44

EFFECTS OF ATORVASTATIN TREATMENT ON ENDOTHELIAL FUNCTION AND INFLAMMATORY STATUS IN ISCHEMIC HEART FAILURE PATIENTS: THE IMPACT OF RENAL FUNCTION

Oikonomou, Evangelos, Siasos, Gerasimos, Mazaris, Savvas, Chatzis, Georgios, Kokkou, Eleni, Zaromitidou, Marina, Tsalamandris, Sotirios, Vavuranakis, Manolis, Zisimos, Konstantinos, Mourouzis, Konstan

Journal:

Journal of the American College of Cardiology

Year:

2015

Language:

english

File:

PDF, 244 KB

english, 2015

45

Software defect prediction using doubly stochastic Poisson processes driven by stochastic belief networks

Andreou, Andreas S., Chatzis, Sotirios P.

Journal:

Journal of Systems and Software

Year:

2016

Language:

english

File:

PDF, 556 KB

english, 2016

46

[IEEE 2018 21st International Conference on Intelligent Transportation Systems (ITSC) - Maui, HI (2018.11.4-2018.11.7)] 2018 21st International Conference on Intelligent Transportation Systems (ITSC) - Charging Policies for PHEVs used for Service Delivery: A Reinforcement Learning Approach

Panayiotou, Tania, Chatzis, Sotirios P., Panayiotou, Christos, Ellinas, Georgios

Year:

2018

Language:

english

File:

PDF, 686 KB

english, 2018

47

Managing service level agreement contracts in OGSA-based Grids

Antonios Litke, Kleopatra Konstanteli, Vassiliki Andronikou, Sotirios Chatzis, Theodora Varvarigou

Journal:

Future Generation Computer Systems

Year:

2008

Language:

english

File:

PDF, 2.00 MB

english, 2008

48

[ACM Press the 6th ACM international conference - Amsterdam, The Netherlands (2007.07.09-2007.07.11)] Proceedings of the 6th ACM international conference on Image and video retrieval - CIVR '07 - A content-based image retrieval scheme allowing for robust automatic personalization

Chatzis, Sotirios, Doulamis, Anastasios, Varvarigou, Theodora

Year:

2007

Language:

english

File:

PDF, 518 KB

english, 2007

49

A conditional random field-based model for joint sequence segmentation and classification

Chatzis, Sotirios P., Kosmopoulos, Dimitrios I., Doliotis, Paul

Journal:

Pattern Recognition

Year:

2013

Language:

english

File:

PDF, 1.18 MB

english, 2013

50

A Latent Manifold Markovian Dynamics Gaussian Process

Chatzis, Sotirios P., Kosmopoulos, Dimitrios

Journal:

IEEE Transactions on Neural Networks and Learning Systems

Year:

2015

Language:

english

File:

PDF, 1.77 MB

english, 2015

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