Karol R. Opara

According to our database, Karol R. Opara authored at least 24 papers between 2010 and 2024.

Collaborative distances:

• Dijkstra number of three.
• Erdős number of four.

2024

Data-driven human and bot recognition from web activity logs based on hybrid learning techniques.

Marek Gajewski, Olgierd Hryniewicz, Agnieszka Jastrzebska, Mariusz Kozakiewicz, Karol R. Opara, Jan W. Owsinski, Slawomir Zadrozny, Tomasz Zwierzchowski

Digit. Commun. Networks, 2024

2023

Semi-supervised vs. supervised learning for mental health monitoring: A case study on bipolar disorder.

Gabriella Casalino, Giovanna Castellano, Olgierd Hryniewicz, Daniel Leite, Karol R. Opara, Weronika Radziszewska, Katarzyna Kaczmarek-Majer

Int. J. Appl. Math. Comput. Sci., 2023

2022

Road Roughness Estimation Through Smartphone-Measured Acceleration.

Karol R. Opara, Karol Brzezinski, Marek Bukowicki, Katarzyna Kaczmarek-Majer

IEEE Intell. Transp. Syst. Mag., 2022

Regularization and concave loss functions for estimation of chemical kinetic models.

Karol R. Opara, Pin Pin Oh

Appl. Soft Comput., 2022

Recent advances in global optimization of time-delayed systems.

Karol R. Opara

Proceedings of the IEEE 11th International Conference on Intelligent Systems, 2022

2021

Reverse Clustering - Formulation, Interpretation and Case Studies

Jan W. Owsinski, Jaroslaw Tomasz Stanczak, Karol R. Opara, Slawomir Zadrozny, Janusz Kacprzyk

Studies in Computational Intelligence 957, Springer, ISBN: 978-3-030-69358-9, 2021

2020

Population Diversity of Nonelitist Evolutionary Algorithms in the Exploration Phase.

Jaroslaw Arabas, Karol R. Opara

IEEE Trans. Evol. Comput., 2020

Smartphone as a monitoring tool for bipolar disorder: a systematic review including data analysis, machine learning algorithms and predictive modelling.

Anna Antosik-Wójcinska, Monika Dominiak, Magdalena Chojnacka, Katarzyna Kaczmarek-Majer, Karol R. Opara, Weronika Radziszewska, Anna Olwert, Lukasz Swiecicki

Int. J. Medical Informatics, 2020

Parametrized Benchmarking: an outline of the idea and a feasibility study.

Karol R. Opara, Anas A. Hadi, Ali Wagdy Mohamed

Proceedings of the GECCO '20: Genetic and Evolutionary Computation Conference, 2020

Radial model of differential evolution dynamics.

Karol R. Opara

Proceedings of the GECCO '20: Genetic and Evolutionary Computation Conference, 2020

2019

The contour fitting property of differential mutation.

Karol R. Opara, Jaroslaw Arabas

Swarm Evol. Comput., 2019

Differential Evolution: A survey of theoretical analyses.

Karol R. Opara, Jaroslaw Arabas

Swarm Evol. Comput., 2019

Control charts based on fuzzy costs for monitoring short autocorrelated time series.

Olgierd Hryniewicz, Katarzyna Kaczmarek-Majer, Karol R. Opara

Int. J. Approx. Reason., 2019

Self-organizing Maps Using Acoustic Features for Prediction of State Change in Bipolar Disorder.

Olga Kaminska, Katarzyna Kaczmarek-Majer, Karol R. Opara, Wit Jakuczun, Monika Dominiak, Anna Antosik-Wójcinska, Lukasz Swiecicki, Olgierd Hryniewicz

Proceedings of the Artificial Intelligence in Medicine: Knowledge Representation and Transparent and Explainable Systems, 2019

2018

Comparison of mutation strategies in Differential Evolution - A probabilistic perspective.

Karol R. Opara, Jaroslaw Arabas

Swarm Evol. Comput., 2018

Control Charts Designed Using Model Averaging Approach for Phase Change Detection in Bipolar Disorder.

Katarzyna Kaczmarek-Majer, Olgierd Hryniewicz, Karol R. Opara, Weronika Radziszewska, Anna Olwert, Jan W. Owsinski, Slawomir Zadrozny

Proceedings of the Uncertainty Modelling in Data Science, 2018

2017

Using a Reverse Engineering Type Paradigm in Clustering. An Evolutionary Programming Based Approach.

Jan W. Owsinski, Janusz Kacprzyk, Karol R. Opara, Jaroslaw Tomasz Stanczak, Slawomir Zadrozny

Proceedings of the Fuzzy Sets, Rough Sets, Multisets and Clustering, 2017

2016

Computation of general correlation coefficients for interval data.

Karol R. Opara, Olgierd Hryniewicz

Int. J. Approx. Reason., 2016

2015

Grammatical rhymes in Polish poetry: A quantitative analysis.

Karol R. Opara

Digit. Scholarsh. Humanit., 2015

2013

Censoring mutation in differential evolution.

Karol R. Opara, Jaroslaw Arabas

Proceedings of the 2013 IEEE Symposium on Differential Evolution, 2013

2012

Efficient Calculation of Kendall's τ for Interval Data.

Olgierd Hryniewicz, Karol R. Opara

Proceedings of the Synergies of Soft Computing and Statistics for Intelligent Data Analysis, 2012

Decomposition and Metaoptimization of Mutation Operator in Differential Evolution.

Karol R. Opara, Jaroslaw Arabas

Proceedings of the Swarm and Evolutionary Computation, 2012

2011

DMEA - An algorithm that combines differential mutation with the fitness proportionate selection.

Jaroslaw Arabas, Lukasz Bartnik, Karol R. Opara

Proceedings of the 2011 IEEE Symposium on Differential Evolution, 2011

2010

Differential Mutation Based on Population Covariance Matrix.

Karol R. Opara, Jaroslaw Arabas

Proceedings of the Parallel Problem Solving from Nature, 2010