The New Graphic Description of the Haar Wavelet Transform. - Piotr Porwik; Agnieszka Lisowska (International Conference on Computational Science, 2004)

A new approach to reference point location in fingerprint recognition. - Piotr Porwik; Lukasz Wieclaw (IEICE Electron. Express, 2004)

The New Algorithm of Fingerprint Reference Point Location Based on Identification Masks. - Piotr Porwik; Krzysztof Wrobel 001 (CORES, 2005)

Some practical remarks about Binary Decision Diagram size reduction. - Piotr Porwik; Krzysztof Wrobel 001; Piotr Zaczkowski (IEICE Electron. Express, 2006)

The Compact Three Stages Method of the Signature Recognition. - Piotr Porwik (CISIM, 2007)

Efficient Algorithm of Affine Form Searching forWeakly Specified Boolean Function. - Piotr Porwik (Fundam. Informaticae, 2007)

Dynamic signature recognition based on velocity changes of some features. - Rafal Doroz; Piotr Porwik; Tomasz Para; Krzysztof Wrobel 001 (Int. J. Biom., 2008)

A new efficient method of fingerprint image enhancement. - Piotr Porwik; Lukasz Wieclaw (Int. J. Biom., 2008)

Fingerprint Reference Point Detection Using Neighbourhood Influence Method. - Piotr Porwik; Lukasz Wieclaw (Computer Recognition Systems 2, 2008)

A New Signature Similarity Measure. - Piotr Porwik; Rafal Doroz; Krzysztof Wrobel 001 (NaBIC, 2009)

A new fingerprint ridges frequency determination method. - Piotr Porwik; Lukasz Wieclaw (IEICE Electron. Express, 2009)

The Polish Coins Denomination Counting by Using Oriented Circular Hough Transform. - Piotr Porwik; Krzysztof Wrobel 001; Rafal Doroz (Computer Recognition Systems 3, 2009)

The modern techniques of latent fingerprint imaging. - Piotr Porwik (CISIM, 2010)

Handwritten Signature Recognition with Adaptive Selection of Behavioral Features. - Rafal Doroz; Piotr Porwik (CISIM, 2011)

A Computational Assessment of a Blood Vessel's Compliance: A Procedure Based on Computed Tomography Coronary Angiography. - Piotr Porwik; Maciej Sosnowski; Tomasz E. Wesolowski; Krzysztof Wrobel 001 (HAIS (1), 2011)

Feature Based Face Detection Algorithm for Digital Still Images. - Tomasz Orczyk; Piotr Porwik (IP&C, 2011)

Lip print recognition based on DTW algorithm. - Lukasz Smacki; Krzysztof Wrobel 001; Piotr Porwik (NaBIC, 2011)

DTW and Voting-Based Lip Print Recognition System. - Piotr Porwik; Tomasz Orczyk (CISIM, 2012)

Adaptive Splitting and Selection Method for Noninvasive Recognition of Liver Fibrosis Stage. - Bartosz Krawczyk; Michal Wozniak 001; Tomasz Orczyk; Piotr Porwik (ACIIDS (2), 2013)

Cost Sensitive Hierarchical Classifiers for Non-invasive Recognition of Liver Fibrosis Stage. - Bartosz Krawczyk; Michal Wozniak 001; Tomasz Orczyk; Piotr Porwik (CORES, 2013)

Statistical Analysis in Signature Recognition System Based on Levenshtein Distance. - Malgorzata Palys; Rafal Doroz; Piotr Porwik (CORES, 2013)

Biometric Features Selection with k-Nearest Neighbours Technique and Hotelling Adaptation Method. - Piotr Porwik; Rafal Doroz (CORES, 2013)

E-medical diagnosis support system for non-invasive liver fibrosis recognition. - Tomasz Orczyk; Piotr Porwik; Bartosz Krawczyk; Michal Wozniak 001; Joanna Musialik; Barbara Blonska-Fajfrowska (Stud. Inform. Univ., 2013)

Self-adaptive Biometric Classifier Working on the Reduced Dataset. - Piotr Porwik; Rafal Doroz (HAIS, 2014)

A new approach to signature recognition using the fuzzy method. - Przemyslaw Kudlacik; Piotr Porwik (Pattern Anal. Appl., 2014)

Fusion of Granular Computing and k -NN Classifiers for Medical Data Support System. - Marcin Bernas; Tomasz Orczyk; Piotr Porwik (ACIIDS (2), 2015)

Liver Fibrosis Diagnosis Support System Using Machine Learning Methods. - Tomasz Orczyk; Piotr Porwik (ACSS (1), 2015)

Computer User Profiling Based on Keystroke Analysis. - Tomasz Emanuel Wesolowski; Piotr Porwik (ACSS (1), 2015)

Effective Lip Prints Preprocessing and Matching Methods. - Krzysztof Wrobel 001; Piotr Porwik; Rafal Doroz (CORES, 2015)

The New Multilayer Ensemble Classifier for Verifying Users Based on Keystroke Dynamics. - Rafal Doroz; Piotr Porwik; Hossein Safaverdi (ICCCI (2), 2015)

Investigation of the Impact of Missing Value Imputation Methods on the k-NN Classification Accuracy. - Tomasz Orczyk; Piotr Porwik (ICCCI (2), 2015)

Keystroke Data Classification for Computer User Profiling and Verification. - Tomasz Emanuel Wesolowski; Piotr Porwik (ICCCI (2), 2015)

The k-NN classifier and self-adaptive Hotelling data reduction technique in handwritten signatures recognition. - Piotr Porwik; Rafal Doroz; Tomasz Orczyk (Pattern Anal. Appl., 2015)

Fingerprint Reference Point Detection Based on High Curvature Points. - Krzysztof Wrobel 001; Rafal Doroz; Piotr Porwik (DMBD, 2016)

A New Personal Verification Technique Using Finger-Knuckle Imaging. - Rafal Doroz; Krzysztof Wrobel 001; Piotr Porwik; Hossein Safaverdi; Michal Senejko; Janusz Jezewski; Pawel Popielski; Slawomir Wilczynski; Robert Koprowski; Zygmunt Wróbel (ICCCI (2), 2016)

The Matching Method for Rectified Stereo Images Based on Minimal Element Distance and RGB Component Analysis. - Pawel Popielski; Robert Koprowski; Zygmunt Wróbel; Slawomir Wilczynski; Rafal Doroz; Krzysztof Wrobel 001; Piotr Porwik (ICCCI (2), 2016)

The Application of the Region Growing Method to the Determination of Arterial Changes. - Ewelina Sobotnicka; Aleksander Sobotnicki; Krzysztof Horoba; Piotr Porwik (ICCCI (2), 2016)

A Survey of Big Data Issues in Electronic Health Record Analysis. - Boguslaw Cyganek; Manuel Graña; Bartosz Krawczyk; Andrzej Kasprzak; Piotr Porwik; Krzysztof Walkowiak; Michal Wozniak 001 (Appl. Artif. Intell., 2016)

Intelligent Methods Applied to Health-Care Information Systems. - Boguslaw Cyganek; Manuel Graña; Piotr Porwik; Michal Wozniak 001 (Appl. Artif. Intell., 2016)

Electronic Health Record Security Based on Ensemble Classification of Keystroke Dynamics. - Tomasz Emanuel Wesolowski; Piotr Porwik; Rafal Doroz (Appl. Artif. Intell., 2016)

Dynamic signature verification method based on association of features with similarity measures. - Rafal Doroz; Piotr Porwik; Tomasz Orczyk (Neurocomputing, 2016)

Signatures verification based on PNN classifier optimised by PSO algorithm. - Piotr Porwik; Rafal Doroz; Tomasz Orczyk (Pattern Recognit., 2016)

Fuzzy approach for intrusion detection based on user's commands. - Przemyslaw Kudlacik; Piotr Porwik; Tomasz E. Wesolowski (Soft Comput., 2016)

The Method of Person Verification by Use of Finger Knuckle Images. - Rafal Doroz; Krzysztof Wrobel 001; Piotr Porwik; Hossein Safaverdi (CORES, 2017)

Computer User Verification Based on Typing Habits and Finger-Knuckle Analysis. - Hossein Safaverdi; Tomasz Emanuel Wesolowski; Rafal Doroz; Krzysztof Wrobel 001; Piotr Porwik (ICCCI (2), 2017)

Dedicated AVR bootloader for performance improvement of prototyping process. - Marcin Lewandowski; Tomasz Orczyk; Piotr Porwik (MIXDES, 2017)

Using a Probabilistic Neural Network for lip-based biometric verification. - Krzysztof Wrobel 001; Rafal Doroz; Piotr Porwik; Jacek Naruniec; Marek Kowalski (Eng. Appl. Artif. Intell., 2017)

An accurate fingerprint reference point determination method based on curvature estimation of separated ridges. - Rafal Doroz; Krzysztof Wrobel 001; Piotr Porwik (Int. J. Appl. Math. Comput. Sci., 2018)

Liver fibrosis diagnosis support using the Dempster-Shafer theory extended for fuzzy focal elements. - Sebastian Porebski; Piotr Porwik; Ewa Straszecka; Tomasz Orczyk (Eng. Appl. Artif. Intell., 2018)

Online signature verification modeled by stability oriented reference signatures. - Rafal Doroz; Przemyslaw Kudlacik; Piotr Porwik (Inf. Sci., 2018)

Personal identification utilizing lip print furrow based patterns. A new approach. - Krzysztof Wrobel 001; Rafal Doroz; Piotr Porwik; Marcin Bernas (Pattern Recognit., 2018)

Combined kNN Classifier for Classification of Incomplete Data. - Tomasz Orczyk; Rafal Doroz; Piotr Porwik (CORES, 2019)

An ensemble learning approach to lip-based biometric verification, with a dynamic selection of classifiers. - Piotr Porwik; Rafal Doroz; Krzysztof Wrobel 001 (Expert Syst. Appl., 2019)

Missing Value Imputation Method Using Separate Features Nearest Neighbors Algorithm. - Tomasz Orczyk; Rafal Doroz; Piotr Porwik (ICCS (3), 2021)

Classifier learning from difficult data on the example of missing features. - Piotr Porwik; Tomasz Orczyk; Rafal Doroz (IJCNN, 2021)

Dynamic keystroke pattern analysis and classifiers with competence for user recognition. - Piotr Porwik; Rafal Doroz; Tomasz Emanuel Wesolowski (Appl. Soft Comput., 2021)

Adaptation of the idea of concept drift to some behavioral biometrics: Preliminary studies. - Piotr Porwik; Rafal Doroz (Eng. Appl. Artif. Intell., 2021)

A Stable Method for Detecting Driver Maneuvers Using a Rule Classifier. - Piotr Porwik; Tomasz Orczyk; Rafal Doroz (ACIIDS (1), 2022)

Features of Hand-Drawn Spirals for Recognition of Parkinson's Disease. - Krzysztof Wrobel 001; Rafal Doroz; Piotr Porwik; Tomasz Orczyk; Agnieszka Betkowska Cavalcante; Monika Grajzer (ACIIDS (2), 2022)

Detection of data drift in a two-dimensional stream using the Kolmogorov-Smirnov test. - Piotr Porwik; Benjamin Mensah Dadzie (KES, 2022)

Multidimensional nearest neighbors classification based system for incomplete lip print identification. - Rafal Doroz; Krzysztof Wrobel 001; Tomasz Orczyk; Piotr Porwik; Marcin Cholewa (Expert Syst. Appl., 2022)

A New Hand-Movement-Based Authentication Method Using Feature Importance Selection with the Hotelling's Statistic. - Rafal Doroz; Krzysztof Wrobel 001; Piotr Porwik; Tomasz Orczyk (J. Artif. Intell. Soft Comput. Res., 2022)

A new concept drift detection method based on the ranking of features in a data stream. - Krzysztof Wrobel 001; Piotr Porwik; Tomasz Orczyk; Benjamin Mensah Dadzie (KES, 2023)

A preliminary study on the dispersed classification system for recognizing safety of drivers' maneuvers. - Tomasz Orczyk; Piotr Porwik; Rafal Doroz (KES, 2023)

Open-source Python repository for data drift analysis. - Krzysztof Wrobel 001; Piotr Porwik; Tomasz Orczyk (KES, 2024)

Adaptive classifier ensemble for multibiometric Verification. - Rafal Doroz; Tomasz Orczyk; Krzysztof Wrobel 001; Piotr Porwik (KES, 2024)

FBDD: feature-based drift detector for batch processing data. - Piotr Porwik; Krzysztof Wrobel 001; Tomasz Orczyk; Rafal Doroz (Clust. Comput., 2024)

Feature-Based Drift Detection in Non-stationary Data Streams Using Multiple Classifiers: A Comprehensive Analysis. - Benjamin Mensah Dadzie; Piotr Porwik (ACIIDS (2), 2025)

Evaluation of the Effectiveness of Ranking Methods in Detecting Feature Drift in Artificial and Real Data. - Krzysztof Wrobel 001; Piotr Porwik; Tomasz Orczyk (ACIIDS (2), 2025)

A Novel Method for Drift Detection in Streaming Data Based on Measurement of Changes in Feature Ranks. - Piotr Porwik; Tomasz Orczyk; Krzysztof Wrobel 001; Benjamin Mensah Dadzie (J. Artif. Intell. Soft Comput. Res., 2025)