Chaotic Properties of Gait Kinematic Data. - Michal Piórek (CISIM, 2015)

Mutual Information for Quaternion Time Series. - Michal Piórek (CISIM, 2016)

Quaternions and joint angles in an analysis of local stability of gait for different variants of walking speed and treadmill slope. - Michal Piórek; Henryk Josinski; Agnieszka Michalczuk; Adam Switonski; Agnieszka Szczesna (Inf. Sci., 2017)

A Quaternion Clustering Framework. - Michal Piórek; Bartosz Jablonski (Int. J. Appl. Math. Comput. Sci., 2020)

Eigenmaps - Modified PCA-Based Approach for Dimensionality Reduction of Multivariate Time Series of Geospatial Data. - Ewa Skubalska-Rafajlowicz; Adam Krzyzak; Michal Piórek (ICAISC (2), 2024)