Szczęsna A, Augustyn D, Harężlak K, Josiński H, Świtoński A, Kasprowski P: Datasets for learning of unknown characteristics of dynamical systems.
Scientific Data, 10, 1–21, 2023. DOI: https://doi.org/10.1038/s41597-023-01978-7 (link)
The most beautiful moments in life, you cannot plan. They come themselves. - Phil Bosmans
Research
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In 2023, the research focused on the analysis of the dynamic system features. The dataset for learning unknown characteristics of such systems was prepared and published. The methods for adaptive dwell time for eye-typing and upsampling eye movement signals were developed.
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2023 -
Szczęsna A, Augustyn D, Josiński H, Harężlak K, Świtoński A, Kasprowski P: Chaotic biomedical time signal analysis via wavelet scattering transform
Journal of Computational Science, 72, 1–11, 2023. DOI:https://doi.org/10.1016/j.jocs.2023.102080 (link)
Harężlak K, Basek P, Kasprowski P: Adaptive dwell time for eye typing
Procedia Computer Science, 225, 4015–4023, 2023. DOI: https://doi.org/10.1016/j.procs.2023.10.397 (link)
Kasprowski P, Harężlak K: Upsampling eye movement signal using convolutional neural networks.
Procedia Computer Science, 207, 3348–3357, 2023, DOI: https://doi.org/10.1016/j.procs.2023.10.251 (link)
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In 2021 - 2022, the application of eye movement signals for biometric identification and controlling computer systems was studied. Additionally, judging qualification, gender, and age of the observer based on gaze patterns when looking at faces was analysed.
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2021 - 2022
Szczęsna A, Augustyn D, Josiński H, Świtoński A, Kasprowski P, Harężlak K: Novel photoplethysmographic signal analysis via wavelet scattering transform
Computational Science - ICCS 2022. 22nd International Conference, London, UK, June 21-23, 2022. Proceedings. Pt. 3 (T. 13352, s. 641–653). DOI: https://doi.org/10.1007/978-3-031-08757-8_53 (link)
Kasprowski P, Borowska Z, Harężlak K: Biometric identification based on keystroke dynamics
Sensors, 2022, 22, 1–14. DOI: https://doi.org/10.3390/s22093158 (link)
Harężlak K, Basek P, Kasprowski P: Side keyboard - the new approach for eye-typing
Procedia Computer Science, 207, 3348–3357, 2022, DOI: https://doi.org/10.1016/j.procs.2022.09.393 (link)
Harężlak K, Mermon M, Kasprowski P : A comparison of the efficiency of eye movement data processing with the usage of a multi-model platform
Procedia Computer Science, 192, 3070–3078, 2021, DOI: https://doi.org/10.1016/j.procs.2021.09.079. (link)
Harężlak K, Duliban A, Kasprowski P: Eye movement-based methods for human-system interaction: A comparison of different approaches.
Procedia Computer Science, 192, 3099–3108, 2021, DOI: https://doi.org/10.1016/j.procs.2021.09.082 (link)
Kasprowski P, Harężlak K, Fudalej P, Fudalej P: Judging qualification, gender, and age of the observer based on gaze patterns when looking at faces.
Pattern recognition. ICPR International Workshops and Challenges. Virtual event, January 10-15, 2021. Proceedings. Pt. 3 (T. 12663, s. 429–439), DOI: https://doi.org/10.1007/978-3-030-68796-0_31 (link)
Harężlak K, Błasiak M, Kasprowski P: Biometric identification based on eye movement dynamic features.
Sensors, 2021, 21, 1–17.DOI: https://doi.org/10.3390/s21186020 (link)
Harężlak K Kasprowski P: Eye movement-based biometric identification.
Artificial intelligence and data processing. The monograph presenting the achievements of the Silesian University of Technology research staff (T. 954, s. 447–455), 2021
Kasprowski P, Harężlak K, Ansari M. F: Intelligent eye image processing for eye tracking.
Artificial intelligence and data processing. The monograph presenting the achievements of the Silesian University of Technology research staff (T. 954, s. 82–87), 2021
Kasprowski P, Harężlak K: Intelligent methods for calibration of eye tracking devices.
Artificial intelligence and data processing. The monograph presenting the achievements of the Silesian University of Technology research staff (T. 954, s. 471–478), 2021
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In 2019 - 2020, in my research I have been continuing may studies in the fields of the characteristics of the eye movement signal exploration the usage of Time Series Analysis. and development of new calibration methods.
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2019 - 2020
Harężlak K, Kasprowski P: Application of time-scale decomposition of entropy for eye movement analysis
Entropy, 2020, 22, 1–17. DOI: https://doi.org/10.3390/e22020168 (link)
Kasprowski P, Harężlak K: Using the uncalibrated eye tracker signal in the gaming environment.
ACM Symposium on Eye Tracking Research & Applications: ETRA 2020 Short Papers, Stuttgart, Germany, June 02-05, 2020. Proceedings (s. 1–5). DOI: https://doi.org/10.1145/3379156.3391837 (link)
Kasprowski P, Harężlak K: Protecting from lunchtime attack using an uncalibrated eye tracker signal.
ACM Symposium on Eye Tracking Research & Applications: ETRA 2020 Short Papers, Stuttgart, Germany, June 02-05, 2020. Proceedings (s. 1–5). DOI: https://doi.org/10.1145/3379156.3391348 (link)
Harężlak K, Kasprowski P: Understanding eye movement signal characteristics based on its dynamical and fractal features
Sensors, vol. 19 iss. 3, art. no. 626 pp. 1-19, 2019 (link)
Harężlak K, Augustyn D. R, Kasprowski P: An Analysis of Entropy-Based Eye Movement Events Detection
Entropy, 21(2):107, 2019. (link)
Kasprowski P, Harężlak K, Skurowski P: Implicit calibration using probable fixation targets
Sensors, vol. 19 iss. 1, art. no. 216, pp. 1--27, 2019. (link)
Kasprowski P, Harężlak K: Using mutual distance plot and warped time distance chart to compare scan-paths of multiple observers.
Proceedings of the 11th ACM Symposium on Eye Tracking Research & Applications : ETRA′19, Denver, Colorado, June 25-28, 2019 (s. 1–5). DOI: https://doi.org/10.1145/3317958.3318226 (link)
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In 2017 and 2018, my research focused on the characteristics of the eye movement signal, explored with the usage of Time Series Analysis. The aim of these studies was to reveal eye movements dynamic nature based on horizontal and vertical velocity. The application of eye tracking methods in medicine and in the diagnosis and therapy of visual impairments with special focus on problems in children, also with intellectual disabilities, were studied as well. Additionally, the possibility of differentiating between experts and laymen in radiology field and usefulness of eye tracking methods in the assessment of a level of dental imperfection were investigated. Furthermore, the widely-available software was developed, providing implementation of various calibration methods, strategies for training and test sets preparation and methods for their evaluation.
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2018 - 2017
Harężlak K, Kasprowski P: Searching for Chaos Evidence in Eye Movement Signals
Entropy. 2018; 20(1):32, DOI: 10.3390/e20010032 (link)
Kasprowski P, Harężlak K: ETCAL - a versatile and extendable library for eye tracker calibration
Digital Signal Processing, Available online 27 November 2017, ISSN 1051-2004, DOI: 10.1016/j.dsp.2017.11.011 (link)
Harężlak K, Kasprowski P, Kasprowska S.: Eye Movement Traits in Differentiating Experts and Laymen
In: Gruca A, Czachórski T, Harezlak K, Kozielski S, Piotrowska A. (eds) Man-Machine Interactions 5. ICMMI 2017. Advances in Intelligent Systems and Computing, vol 659. pp 82-91, Springer, Cham, 2018. DOI:https://doi.org/10.1007/978-3-319-67792-7_9 (link)
Kasprowski P, Harężlak K: Vision Diagnostics and Treatment System for Children with Disabilities
Journal of Healthcare Engineering, Received 14 July 2017; Accepted 22 October 2017. DOI:https://doi.org/10.1155/2018/9481328 (link)
Kasprowski P, Harężlak K: Gaze Self-Similarity Plot - A New Visualization Technique Journal of Eye Movement Research
Journal of Eye Movement Research, [S.l.], v. 10, n. 5, oct. 2017. ISSN 1995-8692. DOI:http://dx.doi.org/10.16910/jemr.10.5.3 (link)
Harężlak K, Kasprowski P: Application of eye tracking in medicine: A survey, research issues and challenges
Computerized Medical Imaging and Graphics. In Press.(link)
Harężlak K: Eye movement dynamics during imposed fixations
Information Sciences. Volume 384, Pages 249-262 (April 2017). DOI:https://doi.org/10.1016/j.ins.2016.07.074 (link)
Harężlak K, Kasprowski P: Chaotic Nature of Eye Movement Signal
Intelligent Decision Technologies 2017: Proceedings of the 9th KES International Conference on Intelligent Decision Technologies (KES-IDT 2017) - Part I, Pages 120-129, 2017. (link)
Kasprowski P, Harężlak K, Fudalej P, Fudalej P: Examining the Impact of Dental Imperfections on Scan-Path Patterns
Intelligent Decision Technologies 2017: Proceedings of the 9th KES International Conference on Intelligent Decision Technologies (KES-IDT 2017) - Part II, Pages 278-286, 2017. (link)
Studies carried out in years 2015 and 2016 concerned mainly the development of eye tracking methods. Among analysed issues, an implicit calibration and the usage of uncalibrated data were examined. Additionally, possibilities of eye movements application in medcine and for user interfaces assessment as well as utilization in biometrics identification were checked. Moreover, a new method for eye movement visualisation, providing the possibility for both temporal and spatial features presentation, was searched for. One paper was devoted to problems regarding the migration of data from relational to NoSQL databases.
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2016 - 2015
Kasprowski P, Harężlak K: Gaze self-similarity plots as a useful tool for eye movement characteristics analysis
2016 IEEE Second Workshop on Eye Tracking and Visualization (ETVIS), Baltimore, MD, 2016, pp. 6-10. (link)
Kasprowski P, Harężlak K: Fusion of Eye Movement and Mouse Dynamics for Reliable Behavioral Biometrics.
Pattern Analysis and Applications, pp 1–13, 2016. (link)
Kasprowski P, Dzierzega M, Kruk K, Harężlak K, Filipek E: Application of eye tracking to support children's vision enhancing exercises.
Information Technologies in Medicine: 5th International Conference Information Technologies in Biomedicine. Advances in Intelligent and Soft Computing. Springer. Volume 1, pp 75-84, 2016. (link)
Grzegorz Baron, Harężlak K: On Approaches to Discretization of Datasets Used for Evaluation of Decision Systems.
Intelligent Decision Technologies 2016. Smart Innovation, Systems and Technologies. Proceedings of the 8th KES International Conference on Intelligent Decision Technologies (KES-IDT 2016) – Part II, pp 149-159, 2016. (link)
Kasprowski P, Harężlak K: Using Dissimilarity Matrix for Eye Movement Biometrics with a Jumping Point Experiment.
Intelligent Decision Technologies 2016. Smart Innovation, Systems and Technologies. Proceedings of the 8th KES International Conference on Intelligent Decision Technologies (KES-IDT 2016) – Part II, pp 83-93, 2016. (link)
Harężlak K, Kasprowski P, Dzierzega M, Kruk, M.: Application of Eye Tracking for Diagnosis and Therapy of Children with Brain Disabilities.
Intelligent Decision Technologies 2016. Smart Innovation, Systems and Technologies. Proceedings of the 8th KES International Conference on Intelligent Decision Technologies (KES-IDT 2016) – Part II, pp 323-333, 2016. (link)
Kasprowski P, Harężlak K, Niezabitowski M: Eye movement tracking as a new promising modality for human computer interaction.
17th International Carpathian Control Conference (ICCC), Tatranska Lomnica, pp. 314-318, 2016. (link)
Kasprowski P, Harężlak K: Implicit Calibration Using Predicted Gaze Targets.
2016 ACM Symposium on Eye Tracking Research & Applications, Charleston, SC, USA.
Gruca A, Harężlak K, Kasprowski P: Application of Dimensionality Reduction Methods for Eye Movement Data Classification.
Man–Machine Interactions 4 Volume 391 of the series Advances in Intelligent Systems and Computing, 2016, pp 291-303. (link)
Harężlak K, Rzeszutek J, Kasprowski P: The eye tracking methods in user interfaces assessment.
KES-IDT 2015 Conference. Intelligent Decision Technologies. Volume 39 of the series Smart Innovation, Systems and Technologies, Springer International Publishing, Switzerland, pp 325-335, 2015. (link)
Harężlak K, Wasinski T, Kasprowski P: The eye movement data storage – checking the possibilities.
KES-IDT 2015 Conference. Intelligent Decision Technologies. Volume 39 of the series Smart Innovation, Systems and Technologies, Springer International Publishing, Switzerland pp 337-345, 2015. (link)
Kasprowski P, Harężlak K: Using Non-Calibrated Eye Movement Data To Enhance Human Computer Interfaces.
KES-IDT 2015 Conference, Intelligent Decision Technologies. Volume 39 of the series Smart Innovation, Systems and Technologies, Springer International Publishing, Switzerland pp 347-356, 2015. (pdf)
Harężlak K, Kasprowski P: The Biometric Identifcation Based on Eye and Mouse Movement Traits.
Journal of Eye Movement Research 18th European Conference on Eye Movements, Vienna, 2015
Kasprowski P, Harężlak K: Disk Space and Load Time Requirements for Eye Movement Biometric Databases.
14th International Conference of Numerical Analysis and Applied Mathematics (ICNAAM 2015). The American Institute of Physics (AIP) Conference Proceedings, Rhodes, Greece, 2015. (link)
Harężlak K, Skowron R: Performance Aspects of Migrating the Web Application from Relational to NoSQL Database.
Beyond Databases, Architectures and Structures. Communications in Computer and Information Science vol. 521. Springer International Publishing, pp. 107-115, 2015. (link)
- The research conducted in the years 2014 - 2013 mostly regarded eye movement tracking methods. The calibration process was studied in details. Furthermore, the possibility of eye gaze usage for PIN entering was analysed too. A study related to database storage performance may also be found.
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2014 - 2013
Kasprowski P, Harężlak K, Stasch M: Guidelines for the eye eracker calibration using points of regard.
16th Information Technologies in Biomedicine. Volume 4. Advances in Intelligent Systems and Computing. Springer International Publishing, Vol. 284, pp. 225-236, 2014 (pdf)
Harężlak K, Kasprowski P, Stasch M: Idiosyncratic repeatability of calibration errors during eye tracker calibration.
29th Proceedings of the 7th IEEE International Conference on Human System Interaction, pp. 95–100, Lisbon, 2014 (pdf)
Harężlak K, Kasprowski P, Stasch M: Towards accurate eye tracker calibration – methods and procedures.
Proceedings of the 17th International Conference in Knowledge Based and Intelligent Information and Engineering Systems - KES2014. Procedia Computer Science, Vol. 35, pp. 1073 – 1081, Elsevier, 2014 (ScienceDirect)
Kasprowski P, Harężlak K: Cheap and easy PIN entering using eye gaze.
3rd Conference on Cryptography and Security Systems. Annales UMCS Informatica, Volume 14, 1, pp 75-84, Lublin, 2014 (pdf)
Kasprowski P, Harężlak K: The Second Eye Movement Verification and Identification Competition.
3rd IEEE & IAPR International Joint Conference on Biometrics, pp. 1-7. IEEExplore, 2014 (pdf)
Harężlak K, Kasprowski P: Evaluating quality of dispersion based fixation detection algorithm.
29th International Symposium on Computer and Information Sciences. Information Sciences and Systems 2014. Springer Lecture Notes on Electrical Engineering, pp 97-104, 2014.
Kasprowski P, Harężlak K: Study on Participant-controlled Eye Tracker Calibration Procedure.
16th ACM International Conference on Multimodal Interaction, 7th Workshop on Eye Gaze in Intelligent Human Machine Interaction: Eye-Gaze and Multimodality, ACM Digital Library, New York, NY , pp 39-41. 2014.
Harężlak K, Werner A, Bach M, Duszeńko A: The Storage Organisation Influence on Database Operations Performance.
Man-Machine Interactions 3. Advances in Intelligent Systems and Computing (242), Springer International Publishing, pp 611-620, 2014.
The years 2012 - 2011 were mainly devoted to multi-agent solutions in distributed database systems using replicated data. Furthermore, social network analysis and the possibility of the MOODLE - e-learning platform extension were studied as well.
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2012 - 2011
Harężlak K, Sala M: Multi-Agent System for Similarity Search in String Sets.
Artificial Intelligence Methods and Techniques for Business and Engineering Applications, s 135-147, 978-83-63430-00-9 ITHEA, Rzeszów Poland, Sofia, Bulgaria, 2012.
Kulisz Ł, Harężlak K: Architecture of the Multiagent System for Replicated Data Management.
Man-Machine Interactions, Advances in Intelligent and Soft Computing. Springer-Verlag, Berlin Heidelberg, pp. 415-424, 2011.
Kulisz Ł, Harężlak K: Replicated Data Synchronization in the Agent System.
Man-Machine Interactions, Advances in Intelligent and Soft Computing. Springer-Verlag, Berlin Heidelberg, pp.425-435, 2011.
Kowalski P, Harężlak K: Data replication methods in distributed sale systems.
Man-Machine Interactions, Advances in Intelligent and Soft Computing. Springer-Verlag, Berlin Heidelberg pp.403-413, 2011.
Harężlak K: Database Server Usage In The Social Networks Analysis
Business and Engineering Applications of Intelligent and Information Systems. ITHEA, Rzeszów Poland, Sofia, Bulgaria, ITHEA, pp. 38-46, 2011.
Werner A, Harężlak K: XML Data Access via MOODLE platform
E-Learning / Book 1, ISBN 979-953-307-241-7, InTech. Open Access Publisher, 2011.
Harężlak K, Werner A: Database Access and Management with usage of the MOODLE platform.
Human-Computer Systems Interaction. Backgrounds and Applications 2, Series: Advances in Intelligent and Soft Computing, Vol. 60, Springer Verlag, pp 49-65, 2011.
During the years 2010-2009, articles concerning database schemas’ comparison and new mechanisms for the MOODLE platform were prepared and published.
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2010 - 2009
Harężlak K, Werner A.: Extension of the MOODLE e-learning platform with database management mechanisms.
3rd International Conference on Human System Interaction. HSI 2010, Rzeszów, Poland, May 13-15, 2010. Conference proceedings. Piscataway : Institute of Electrical and Electronics Engineers, s. 491-495, 2010.
Budny M, Harężlak K: Comparison and synchronization of database schemas.
Studia Infromatica. Zeszyty Naukowe Politechniki Śląskiej, seria INFORMATYKA, Volume 31, Number 2A (89), pp 431-444, 2010.
Harężlak K, Werner A: E-learning Database Course with Usage of Interactive Database Querying.
Internet – Technical Development and Applications Series: Advances in Intelligent and Soft Computing , Vol. 64, ISBN: 978-3-642-05018-3, pp 81-89, 2009.
Budny M, Harężlak K: Usage of the Universal Object Model in Database Schemas Comparison and Integration.
Man-Machine Interactions. Advances in Intelligent and Soft Computing, Springer-Verlag, Berlin Heidelberg, pp. 563-572,, 2009.
The early papers describe research on database mechanisms specially developed in the experimental distributed database management system.
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2008 and older (in Polish)
Harężlak K: Replikacja danych ma urządzenia przenośne.
16th STUDIA INFORMATICA. Formerly: Zeszyty Naukowe Politechniki Śląskiej, Informatyka, Vol. 30, No. 2A (83), 2009
Harężlak K, Wróbel M: Bazy danych w zastosowaniach monitoringu i lokalizacji pojazdów.
Bazy Danych - Rozwój Metod i Technologii. Bezpieczeństwo, wybrane technologie i zastosowania. Wybrane zastosowania baz danych. WKŁ, Warszawa 2008.
Harężlak K: Bezpieczeństwo eksperymentalnego systemu zarządzania rozproszoną bazą danych.
Bazy Danych - Rozwój Metod i Technologii. Bezpieczeństwo, wybrane technologie i zastosowania. Wybrane zastosowania baz danych. WKŁ, Warszawa 2008.
Harężlak K: Metody ochrony dostępu do wirtualnie współdzielonej pamięci.
Wysokowydajne sieci komputerowe. Zastosowanie i bezpieczeństwo. WKŁ, Warszawa 2005.
Harężlak K: Bezpieczeństwo eksperymentalnego systemu zarządzania rozproszoną bazą danych.
Bazy Danych - Modele, Technologie, Narzędzia. Architektura, modele formalne, bezpieczeństwo. Bezpieczeństwo i ochrona baz danych WKŁ, Warszawa 2005.
Harężlak K: Metody ochrony dostępu do wirtualnie współdzielonej pamięci.
Wysokowydajne sieci komputerowe. Zastosowanie i bezpieczeństwo. WKŁ, Warszawa 2005.
Harężlak K: Efektywność realizacji transakcji rozproszonych z wykorzystaniem wirtualnie współdzielonej pamięci.
Studia Informatica vol. 25, 2004.
Harężlak. K.: Asynchroniczna metoda aktualizacji kopii danych.
Współczesne problemy sieci komputerowych. Nowe technologie. WNT, 2004
Harężlak K:. Aktualizacja kopii danych z wykorzystaniem agentów przenośnych.
Studia Informatica vol. 24, 2003.
Harężlak K, Josiński H: Dostęp do rozproszonych baz danych z wykorzystaniem agentów przenośnych.
Studia Informatica vol. 23, 2002.
Harężlak K: Realizacja transakcji na kopiach danych w środowisku współdzielonej pamięci.
VIII Seminarium "Sieci Komputerowe". Studia Informatica vol. 22, Krynica 2001.
Chłopek M, Harężlak K, Josiński H: Sterowanie współbieżnym dostępem do danych podczas realizacji transakcji rozproszonych — rozwój eksperymentalnego systemu zarządzania rozproszoną baz danych.
V Seminarium "Sieci Komputerowe". Zeszyty Naukowe Pol.Śl, s. Informatyka, z.34, Gliwice, 1998.
Chłopek M, Harężlak K, Josiński H: Implementacja podstawowych mechanizmów zarządzania rozproszoną baz danych w eksperymentalnym systemie wykorzystującym model współdzielonej pamięci.
IV Seminarium "Sieci Komputerowe". Zeszyty Naukowe Pol. Śl. s. Informatyka, z.32, Gliwice, 1997.