A Controller Design for the Khepera Robot: A Rough Set Approach. - Zbigniew Suraj; James F. Peters; Piotr Grochowalski (Fundam. Informaticae, 2005)

The Rough Set Database System: An Overview. - Zbigniew Suraj; Piotr Grochowalski (Trans. Rough Sets, 2005)

Functional Extension of the RSDS System. - Zbigniew Suraj; Piotr Grochowalski (RSCTC, 2006)

The Rough Set Database System. - Zbigniew Suraj; Piotr Grochowalski (Trans. Rough Sets, 2008)

The Outline of an Ontology for the Rough Set Theory and its Applications. - Piotr Grochowalski; Krzysztof Pancerz (Fundam. Informaticae, 2009)

Matching ontological subgraphs to concepts: A preliminary rough set approach. - Krzysztof Pancerz; Piotr Grochowalski (ISDA, 2010)

Some Comparative Analyses of Data in the RSDS System. - Zbigniew Suraj; Piotr Grochowalski (RSKT, 2010)

Toward Intelligent Searching the Rough Set Database System (RSDS): an Ontological Approach. - Zbigniew Suraj; Piotr Grochowalski (Fundam. Informaticae, 2010)

Pawlak Collaboration Graph and Its Properties. - Zbigniew Suraj; Piotr Grochowalski; Lukasz Lew (RSFDGrC, 2011)

RoSetOn: The Open Project for Ontology of Rough Sets and Related Fields. - Zbigniew Suraj; Piotr Grochowalski (RSKT, 2011)

Discovering Patterns of Collaboration in Rough Set Research: Statistical and Graph-Theoretical Approach. - Zbigniew Suraj; Piotr Grochowalski; Lukasz Lew (RSKT, 2011)

Knowledge Representation and Automated Methods of Searching for Information in Bibliographical Data Bases: A Rough Set Approach. - Zbigniew Suraj; Piotr Grochowalski; Krzysztof Pancerz (Rough Sets and Intelligent Systems (2), 2013)

About New Version of RSDS System. - Zbigniew Suraj; Piotr Grochowalski (Fundam. Informaticae, 2014)

Optimization of Backward Fuzzy Reasoning Based on Rule Knowledge. - Zbigniew Suraj; Piotr Grochowalski; Sibasis Bandyopadhyay (CS&P, 2015)

Rough Set Based Approximations of Classes in the OWL Ontology of Places in Poland (extended abstract). - Piotr Grochowalski; Krzysztof Pancerz; Tomasz Szul (CS&P, 2016)

Modified Generalized Weighted Fuzzy Petri Net in Intuitionistic Fuzzy Environment. - Sibasis Bandyopadhyay; Zbigniew Suraj; Piotr Grochowalski (IJCRS, 2016)

Flexible Generalized Fuzzy Petri Nets for Rule-Based Systems. - Zbigniew Suraj; Piotr Grochowalski; Sibasis Bandyopadhyay (TPNC, 2016)

Fuzzy Petri Nets with Linear Orders for Intervals. - Zbigniew Suraj; Piotr Grochowalski (TPNC, 2017)

Generational Feature Elimination and Some Other Ranking Feature Selection Methods. - Wieslaw Paja; Krzysztof Pancerz; Piotr Grochowalski (Advances in Feature Selection for Data and Pattern Recognition, 2018)

Aggregation of Fuzzy Equivalences in Data Exploration by kNN Classifier. - Anna Król; Wojciech Rzasa; Piotr Grochowalski (FUZZ-IEEE, 2020)

Radius kNN Classifier Using Aggregation of Fuzzy Equivalences. - Piotr Grochowalski; Anna Król; Wojciech Rzasa (FUZZ-IEEE, 2021)

The RSDS: A Current State and Future Plans. - Zbigniew Suraj; Piotr Grochowalski (IJCRS, 2021)

PNeS in Modelling, Control and Analysis of Concurrent Systems. - Zbigniew Suraj; Piotr Grochowalski (IJCRS, 2021)

New transitivity of Atanassov's intuitionistic fuzzy sets in a decision making model. - Barbara Pekala; Piotr Grochowalski; Eulalia Szmidt (Int. J. Appl. Math. Comput. Sci., 2021)

The RSDS - Bibliographic Database for Rough Sets and Related Fields. - Zbigniew Suraj; Piotr Grochowalski (Trans. Rough Sets, 2022)

Applications of IFIS python library in interval-valued fuzzy inference problems. - Barbara Pékala; Piotr Grochowalski; Dawid Kosior; Dorota Gil; Wojciech Koziol; Krzysztof Dyczkowski; Uzay Kaymak; Caro Fuchs; Marco S. Nobile (FUZZ, 2024)

Automated Discovery of Concurrent Models of Decision-Making Systems from Data. - Zbigniew Suraj; Piotr Grochowalski; Pawel Drygas (ICCS (2), 2024)

Influence of Fuzzy Petri Net Operating Mode on Decision-Making. - Zbigniew Suraj; Piotr Grochowalski; Pawel Drygas (KES, 2024)

Python library for interval-valued fuzzy inference. - Krzysztof Dyczkowski; Piotr Grochowalski; Dawid Kosior; Dorota Gil; Wojciech Koziol; Barbara Pekala; Uzay Kaymak; Caro Fuchs; Marco S. Nobile (SoftwareX, 2024)

A Novel Method for Human Fall Detection Using Federated Learning and Interval-Valued Fuzzy Inference Systems. - Barbara Pekala; Jaroslaw Szkola; Piotr Grochowalski; Dorota Gil; Dawid Kosior; Krzysztof Dyczkowski (J. Artif. Intell. Soft Comput. Res., 2025)