Grodek 2021

To register for Fourteenth Workshop on Nonstationary Systems and their Applications in February 2021 please fill the form available HERE and send it via e-mail to Agnieszka Wyłomańska ( or Jacek Leśkow (


February 8 – 10, 2021, Gródek nad Dunajcem, Poland
(on-line mode).

Organization of the workshop. Please note that the timing follows the Central European Time zone (GMT +1).

17:50 Opening of the workshop,  Jacek Leśkow,  Cracow University of Technology, Cracow, Poland

18:00 Session I. Chair: Agnieszka Wyłomańska       

18:00 – 18:30 William A Gardner, University of California, Davis, USA
On FOT Probability – Part I: History and Future of a Proposed Paradigm Shift;
Part II: Purely Empirical FOT-Probability Theory
Abstract Presentation

18|:30 – 18:45   Discussion

18:45 – 19:15  Hongxia Miao, Feng Zhang, Ran Tao; Beijing Institute of Technology, China
Chirp cyclostationary signal analysis in the fractional Fourier domains

19:15-19:45 Antonio Napolitano, University of Parthenope, Naples, Italy
 Linear System Decomposition into FOT-Deterministic and  FOT-Purely-Random Components
Abstract  Presentation

19:45 – 20:00 Discussion.

20:00 – 20:30  Dominique Dehay, Universite Rennes, France
FOT Frequency extraction from the distribution of a signal
Abstract Presentation

20:30 – 21:00 Break

21:00 Session II. Chair: Dominique Dehay

21:00 – 21:30 Christiana Drake, University of California, Davis, USA
Missing at random and not-at-random mechanism in cyclostationary processes and parameter estimation

21:30-22:00  Ihor Javors’kyj, Roman Yuzefovych, Ivan Matsko  Karpenko Physico-Mechanical Institute of National Academy of Sciences of Ukraine
LSM periodically non-stationary covariance analysis of vibration signals for detection and analysis of mechanism evolutionary faults

DAY 2. Tuesday, February 9, 2021.

16:00 Session III. Chair: Jacek Leśkow

16:00-16:30, Harry Hurd, University of North Carolina, Chapel Hill, USA
Methods for Removing the Periodic Mean

16:30-17:00 Agnieszka Wyłomańska, Wrocław University of Science and Technology, Poland
New statistical test for Gaussian distribution for platykurtic distributed random samples

17:00-17:30  Vladimir Rodriguez, Instituto Tecnológico Autónomo de México, Mexico
Wavelet Estimation for Dynamic Factor Models with Time-Varying Loadings

17:30-18:00 Break

18:00 Session IV. Chair: Antonio Napolitano

18:00 – 18:30 Francyelle L. Medina and Aldo M. Garay, Federal University of Pernambuco, Brazil
Estimation and forecasting in RC-ZINAR(1) process with zero-inflated innovations

18:30 – 19:00 Márton Ispány, Faculty of Informatics, University of Debrecen, Debrecen, Hungary
On a periodic and seasonal statistical model for non-negative integer-valued time series

19:00-19:30 Jacek Leśkow, Cracow Technical University, Cracow, Poland
Functional Data Analysis in Statistical Processing of Cyclostationary Signals. Theory and Applications
Abstract Presentation

19:30 – 20:00 Break

20:00 Session V. Chair: Agnieszka Wyłomańska

20:00 – 20:30 Timofey Shevgunov, Moscow Aviation Institute (National Research University), Moscow, National Research University Higher School of Economics, Moscow
On explicit interpretation of the FOT formal expressions for continuous-time signals and its estimation using sampled finite-time observations
Abstract Presentation

20:30 – 21:00 Aleksandra Grzesiek, Wrocław University of Science and Technology, Poland
Cross-dependence measures for two-dimensional periodic AR(1) model with alpha-stable Noise

21:00 – 21:30 Wojciech Żuławiński, Wrocław University of Science and Technology, Poland
The modified Yule-Walker method for  multidimensional infinite-variance periodic autoregressive time series

21:30-22:00 Piotr Kruczek, Wrocław University of Science and Technology, Poland
Generalized Spectral Coherence for cyclostationary signals with α-stable distribution

DAY 3. Wednesday, February 10,  2021.

17:00 Session VI. Chair:  Aleksandra Grzesiek

17:00 – 17:30 Krzysztof Pomorski, Cracow University of Technology, Poland.
Non-invasive singe-electron detectors of charged particles in  the framework of cyclostationary processes

17:30 – 18:00 Justyna Hebda-Sobkowicz, Wrocław University of Science and Technology, Poland
Infogram performance analysis and its enhancement for bearings diagnostics in presence of non-Gaussian noise

18:00-18:30 Jakub Nowicki, Wrocław University of Science and Technology, Poland
Local Defect Detection in Bearings in the Presence of Heavy-Tailed Noise and Spectral Overlapping of Informative and Non-Informative Impulses

18:30-19:00 Break

19:00 Session VII. Chair: Jacek Leśkow

19:00– 19:30 Paweł Zimroz, Wrocław University of Science and Technology, Poland
Voice detection in the sound recorded by a drone

19:30 – 20:00 Katarzyna Maraj, Wrocław University of Science and Technology, Poland
Statistical test for anomalous diffusion based on empirical anomaly measure for Gaussian Processes

20:00 – 20:30 Dawid Szarek, Wrocław University of Science and Technology, Poland
Fractional Dynamics Identification via Intelligent Unpacking of the Sample Autocovariance Function by Neural Networks

20:30-21:00 Łukasz Bielak, KGHM Polska Miedź S.A., Wrocław University of Science and Technology, Poland
Multi-dimensional heavy-tailed based modelling for market risk factors of KGHM mining company

21:00-21:30 Mateusz Śliwiński, Wrocław University of Science and Technology, Poland
Performance analysis of new and regenerated boring crowns

21:30 Round-table discussion “The future of research on cyclostationary processes in the era of Big Data, Quantum Computing and Artificial Intelligence”. Closure of the workshop. Moderators: Agnieszka Wyłomańska and Jacek Leśkow.