Personal information

Activities

Employment (1)

University of Warmia and Mazury: Olsztyn, Warmia, PL

2002-03-01 to present | Professor (Mathematics and Computer Science)
Employment
Source: Self-asserted source
Lech Polkowski

Education and qualifications (1)

University of Warsaw: Warsaw, Mazovia, PL

1978-10-01 to 1982-03-07 | PhD (Mathematics, Infoirmatics and Mechanics)
Education
Source: Self-asserted source
Lech Polkowski

Professional activities (5)

Intern. Rough Set Society: Milano, IT

2005-01-01 to present | member (Advisory Board)
Service
Source: Self-asserted source
Lech Polkowski

Fundamenta Informaticae: Warsaw, Poland, PL

1996-09-01 to 2010-06-30 | Deputy Editor-in-Chief (Editorial Board)
Service
Source: Self-asserted source
Lech Polkowski

Ohio University: Athens, OH, US

1990-09-01 to 1991-06-30 | Visiting Assoc. Professor (Mathematics)
Invited position
Source: Self-asserted source
Lech Polkowski

Technische Universiteit Delft: Delft, Zuid-Holland, NL

1988-09-01 to 1989-08-30 | Visiting scholar (Vakgroep Informatica)
Invited position
Source: Self-asserted source
Lech Polkowski

Ohio University: Athens, OH, US

1985-09-01 to 1987-06-30 | Visiting Ass. Professor (Mathematics)
Invited position
Source: Self-asserted source
Lech Polkowski

Funding (1)

statute grant

Grant
University of Warmia and Mazury (Olsztyn, PL)
Source: Self-asserted source
Lech Polkowski

Works (50 of 133)

Items per page:
Page 1 of 3

Logic. reference Book for Computer Scientists

Springer Cham
2023-10-04 | Book | Writing - original draft
Contributors: Lech Polkowski
Source: Self-asserted source
Lech Polkowski

Logics for Computer and Data Sciences, and Artificial Intelligence

Springer Nature Switzerland AG
2022-01-02 | Book
Contributors: Lech Polkowski
Source: Self-asserted source
Lech Polkowski

On the compactness property of mereological spaces

Fundamenta Informaticae
2020-04-01 | Journal article
Source: Self-asserted source
Lech Polkowski

On the Compactness Property of Mereological Spaces*

Fundamenta Informaticae
2020-02-08 | Journal article
Contributors: Lech Polkowski
Source: check_circle
Crossref

Introducing mass-based rough mereology in a mereological universe with relations to fuzzy logics and a generalization of the Łukasiewicz logical foundations of probability.

Fundamenta Informaticae
2019-03-01 | Journal article
Source: Self-asserted source
Lech Polkowski

A logic for spatial reasoning in the framework of rough mereology

Transactions on Rough Sets XXI
2019-02-01 | Book chapter
Source: Self-asserted source
Lech Polkowski

Jan Łukasiewicz. Life, Work, Legacy

Transactions on Rough Sets XXI
2019-02-01 | Book chapter
Source: Self-asserted source
Lech Polkowski

Robot navigation and path planning by means of rough mereology

Proceedings - 2nd IEEE International Conference on Robotic Computing, IRC 2018
2018 | Conference paper
EID:

2-s2.0-85049642358

Contributors: Polkowski, L.; Zmudzinski, L.; Artiemjew, P.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

From Leśniewski, ukasiewicz, Tarski to Pawlak: Enriching rough set based data analysis. A retrospective survey

Fundamenta Informaticae
2017 | Journal article
EID:

2-s2.0-85027309371

Contributors: Polkowski, L.T.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

On mereology as a tool in problems of intelligent control, granular computing, data analysis and approximate and spatial reasoning

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
2017 | Book
EID:

2-s2.0-85022337055

Contributors: Polkowski, L.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

Preface

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
2017 | Book
EID:

2-s2.0-85022346077

Contributors: Polkowski, L.; Yao, Y.; Artiemjew, P.; Ciucci, D.; Liu, D.; Ślȩzak, D.; Zielosko, B.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

Preface

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
2017 | Book
EID:

2-s2.0-85022326608

Contributors: Polkowski, L.; Yao, Y.; Artiemjew, P.; Ciucci, D.; Liu, D.; Ślȩzak, D.; Zielosko, B.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

Rough sets, rough mereology and uncertainty

Studies in Computational Intelligence
2017 | Book
EID:

2-s2.0-85018317587

Contributors: Polkowski, L.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

The boosting and bootstrap ensembles for the pair classifier based on the dual indiscernibility matrix

Studies in Computational Intelligence
2017 | Book
EID:

2-s2.0-85018277059

Contributors: Artiemjew, P.; Nowak, B.; Polkowski, L.; Gorecki, P.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

Theory of mind and empathy. Part i-model of social emotional thinking

Fundamenta Informaticae
2017 | Journal article
EID:

2-s2.0-85014727102

Contributors: Przybyszewski, A.W.; Polkowski, L.T.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

Zdzisław pawlak as i saw him and remember him now

Studies in Computational Intelligence
2017 | Book
EID:

2-s2.0-85018260702

Contributors: Polkowski, L.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

A new classifier based on the dual indiscernibility matrix

Communications in Computer and Information Science
2016 | Book
EID:

2-s2.0-84988807178

Contributors: Artiemjew, P.; Nowak, B.A.; Polkowski, L.T.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

A version of rough mereology suitable for rough sets

CEUR Workshop Proceedings
2016 | Conference paper
EID:

2-s2.0-84992411659

Contributors: Polkowski, L.T.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

Betweenness, Łukasiewicz Rough Inclusions, Euclidean Representations in Information Systems, Hyper-granules and Conflict Resolution<sup>∗</sup>

Fundamenta Informaticae
2016 | Journal article
EID:

2-s2.0-84997295000

Contributors: Polkowski, L.T.; Nowak, B.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

Rough sets of zdzisław pawlak give new life to old concepts. A personal view .

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
2016 | Book
EID:

2-s2.0-84992533201

Contributors: Polkowski, L.T.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

Betweenness, lukasiewicz rough inclusions, euclidean representations in information systems, hyper-granules, conflict resolution

CEUR Workshop Proceedings
2015 | Conference paper
EID:

2-s2.0-84955491320

Contributors: Polkowski, L.T.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

Covering strategies

Intelligent Systems Reference Library
2015 | Book
EID:

2-s2.0-84927594442

Contributors: Polkowski, L.; Artiemjew, P.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

Effects of granulation on entropy and noise in data

Intelligent Systems Reference Library
2015 | Book
EID:

2-s2.0-84927654941

Contributors: Polkowski, L.; Artiemjew, P.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

Granular classifiers based on weak rough inclusions

Intelligent Systems Reference Library
2015 | Book
EID:

2-s2.0-84927632589

Contributors: Polkowski, L.; Artiemjew, P.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

Granular computing in the problem of missing values

Intelligent Systems Reference Library
2015 | Book
EID:

2-s2.0-84927639916

Contributors: Polkowski, L.; Artiemjew, P.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

Layered granulation

Intelligent Systems Reference Library
2015 | Book
EID:

2-s2.0-84927642846

Contributors: Polkowski, L.; Artiemjew, P.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

Learning data classification: Classifiers in general and in decision systems

Intelligent Systems Reference Library
2015 | Book
EID:

2-s2.0-84927664313

Contributors: Polkowski, L.; Artiemjew, P.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

Mereology and rough mereology: Rough mereological granulation

Intelligent Systems Reference Library
2015 | Book
EID:

2-s2.0-84927664376

Contributors: Polkowski, L.; Artiemjew, P.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

Mereology and uncertainty

Logic and Logical Philosophy
2015 | Journal article
EID:

2-s2.0-84962053947

Contributors: Polkowski, L.T.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

Methodologies for granular reflections

Intelligent Systems Reference Library
2015 | Book
EID:

2-s2.0-84927670594

Contributors: Polkowski, L.; Artiemjew, P.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

Naive bayes classifier on granular reflections: The case of concept-dependent granulation

Intelligent Systems Reference Library
2015 | Book
EID:

2-s2.0-84927649775

Contributors: Polkowski, L.; Artiemjew, P.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

Preface

Intelligent Systems Reference Library
2015 | Book
EID:

2-s2.0-84927626880

Contributors: Polkowski, L.; Artiemjew, P.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

Similarity and granulation

Intelligent Systems Reference Library
2015 | Book
EID:

2-s2.0-84940717760

Contributors: Polkowski, L.; Artiemjew, P.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

Where rough sets and fuzzy sets meet

Fundamenta Informaticae
2015 | Journal article
EID:

2-s2.0-84949943296

Contributors: Polkowski., L.; Semeniuk-Polkowska, M.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

Boundaries, borders, fences, hedges

Fundamenta Informaticae
2014 | Journal article
EID:

2-s2.0-84893650208

Contributors: Polkowski, L.; Semeniuk-Polkowska, M.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

On the problem of boundaries from mereology and rough mereology points of view

Fundamenta Informaticae
2014 | Journal article
EID:

2-s2.0-84907604216

Contributors: Polkowski, L.; Semeniuk-Polkowska, M.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

An Implementation of the Zdzisław Pawlak Idea for Reasoning about Uncertainty: Approximate Reasoning by Parts

Intelligent Systems Reference Library
2013 | Book
EID:

2-s2.0-84885448676

Contributors: Polkowski, L.; Semeniuk-Polkowska, M.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

Granular mereotopology: A first sketch

CEUR Workshop Proceedings
2013 | Conference paper
EID:

2-s2.0-84924771551

Contributors: Polkowski, L.; Semeniuk-Polkowska, M.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

On a notion of extensionality for artifacts

Fundamenta Informaticae
2013 | Journal article
EID:

2-s2.0-84887938801

Contributors: Semeniuk-Polkowska, M.; Polkowski, L.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

Data-mining and knowledge discovery: Case-based reasoning, nearest neighbor and rough sets

Computational Complexity: Theory, Techniques, and Applications
2012 | Book
EID:

2-s2.0-84949175374

Contributors: Polkowski, L.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

Granulation of knowledge: Similarity based approach in information and decision systems

Computational Complexity: Theory, Techniques, and Applications
2012 | Book
EID:

2-s2.0-84880476770

Contributors: Polkowski, L.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

On a notion of extensionality for artifacts

CEUR Workshop Proceedings
2012 | Conference paper
EID:

2-s2.0-84891777631

Contributors: Polkowski, L.; Semeniuk-Polkowska, M.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

Preface

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
2012 | Book
EID:

2-s2.0-85025066308

Contributors: Yao, J.; Yang, Y.; Słowiński, R.; Greco, S.; Li, H.; Mitra, S.; Polkowski, L.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

Approximate Reasoning by Parts: An Introduction to Rough Mereology

Intelligent Systems Reference Library
2011 | Book
EID:

2-s2.0-84885665924

Contributors: Polkowski, L.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

Granular computing in the frame of rough mereology. A case study: Classification of data into decision categories by means of granular reflections of data

International Journal of Intelligent Systems
2011 | Journal article
EID:

2-s2.0-79955485365

Contributors: Polkowski, L.; Artiemjew, P.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

Mereology

Intelligent Systems Reference Library
2011 | Book
EID:

2-s2.0-84885618615

Contributors: Polkowski, L.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

On Concepts. Aristotelian and Set-Theoretic Approaches

Intelligent Systems Reference Library
2011 | Book
EID:

2-s2.0-84885641852

Contributors: Polkowski, L.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

Preface

Intelligent Systems Reference Library
2011 | Book
EID:

2-s2.0-84885677868

Contributors: Polkowski, L.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

Reasoning by Rough Mereology in Problems of Behavioral Robotics

Intelligent Systems Reference Library
2011 | Book
EID:

2-s2.0-84885596793

Contributors: Polkowski, L.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier

Reasoning Patterns of Deductive Reasoning

Intelligent Systems Reference Library
2011 | Book
EID:

2-s2.0-84885631453

Contributors: Polkowski, L.
Source: Self-asserted source
Lech Polkowski via Scopus - Elsevier
Items per page:
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