Radim Belohlávek

Orcid: 0000-0003-4924-3233

Affiliations:
  • Palacky University, Olomouc, Czech Republic


According to our database1, Radim Belohlávek authored at least 197 papers between 1998 and 2024.

Collaborative distances:
  • Dijkstra number2 of four.
  • Erdős number3 of four.

Timeline

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Bibliography

2024
Factorization of Matrices With Grades With Overcovering.
IEEE Trans. Fuzzy Syst., April, 2024

2023
On the concept of fuzzy order II: Antisymmetry.
Int. J. Gen. Syst., November, 2023

On the concept of fuzzy order I: Remarks and observations.
Int. J. Gen. Syst., November, 2023

Fuzzifier's temptation.
Fuzzy Sets Syst., August, 2023

Avoiding flatness in factoring ordinal data.
Inf. Sci., June, 2023

2022
Impact of fuzzy logic: a bibliometric view.
Int. J. Gen. Syst., 2022

Typicality: A formal concept analysis account.
Int. J. Approx. Reason., 2022

2021
The 8M Algorithm from Today's Perspective.
ACM Trans. Knowl. Discov. Data, 2021

2020
Basic level of concepts and formal concept analysis 2: examination of existing basic level metrics.
Int. J. Gen. Syst., 2020

Basic level of concepts in formal concept analysis 1: formalization and utilization.
Int. J. Gen. Syst., 2020

Typicality in Conceptual Atructures Within the Framework of Formal Concept Analysis.
Proceedings of the Fifthteenth International Conference on Concept Lattices and Their Applications, 2020

2019
The Discrete Basis Problem and Asso Algorithm for Fuzzy Attributes.
IEEE Trans. Fuzzy Syst., 2019

Factorizing Boolean matrices using formal concepts and iterative usage of essential entries.
Inf. Sci., 2019

Goguen's contributions to fuzzy logic in retrospect.
Int. J. Gen. Syst., 2019

Factorization of matrices with grades via essential entries.
Fuzzy Sets Syst., 2019

A reduction theorem to compute fixpoints of fuzzy closure operators.
Fuzzy Sets Syst., 2019

2018
A calculus for containment of fuzzy attributes.
Soft Comput., 2018

Toward quality assessment of Boolean matrix factorizations.
Inf. Sci., 2018

Relational similarity-based model of data part 2: dependencies in data.
Int. J. Gen. Syst., 2018

On Zadeh's problem in probability theory.
Int. J. Gen. Syst., 2018

Handling noise in Boolean matrix factorization.
Int. J. Approx. Reason., 2018

A new algorithm for Boolean matrix factorization which admits overcovering.
Discret. Appl. Math., 2018

Toward Factor Analysis of Educational Data.
Proceedings of the Fourteenth International Conference on Concept Lattices and Their Applications, 2018

2017
Relational similarity-based model of data part 1: foundations and query systems.
Int. J. Gen. Syst., 2017

Attribute dependencies for data with grades II, .
Int. J. Gen. Syst., 2017

Systems, uncertainty, and information: A legacy of George J. Klir.
Int. J. Gen. Syst., 2017

Editorial.
Int. J. Gen. Syst., 2017

George J. Klir, Obituary<sup>☆</sup>.
Fuzzy Sets Syst., 2017

Fixpoints of fuzzy closure operators via ordinary algorithms.
Proceedings of the 2017 IEEE International Conference on Fuzzy Systems, 2017

2016
Bases of closure systems over residuated lattices.
J. Comput. Syst. Sci., 2016

Attribute dependencies for data with grades I, .
Int. J. Gen. Syst., 2016

George J. Klir (1932-2016).
Int. J. Gen. Syst., 2016

Automated prover for attribute dependencies in data with grades.
Int. J. Approx. Reason., 2016

Factorization of matrices with grades.
Fuzzy Sets Syst., 2016

How to assess quality of BMF algorithms?
Proceedings of the 8th IEEE International Conference on Intelligent Systems, 2016

2015
Hardness of Solving Relational Equations.
IEEE Trans. Fuzzy Syst., 2015

From-below approximations in Boolean matrix factorization: Geometry and new algorithm.
J. Comput. Syst. Sci., 2015

Central points and approximation in residuated lattices.
Int. J. Approx. Reason., 2015

Pavelka-style fuzzy logic in retrospect and prospect.
Fuzzy Sets Syst., 2015

A logic of graded attributes.
Arch. Math. Log., 2015

2014
Granularity of attributes in formal concept analysis.
Inf. Sci., 2014

Computing minimal sets of descriptive conditions for binary data.
Int. J. Gen. Syst., 2014

Triadic fuzzy Galois connections as ordinary connections.
Fuzzy Sets Syst., 2014

Attribute Dependencies for Data with Grades.
CoRR, 2014

Impact of Boolean factorization as preprocessing methods for classification of Boolean data.
Ann. Math. Artif. Intell., 2014

Factor analysis of ordinal data via decomposition of matrices with grades.
Ann. Math. Artif. Intell., 2014

Boolean factors as a means of clustering of interestingness measures of association rules.
Ann. Math. Artif. Intell., 2014

2013
Optimal Factorization of Three-Way Binary Data Using Triadic Concepts.
Order, 2013

Formal concept analysis with background knowledge: a case study in paleobiological taxonomy of belemnites.
Int. J. Gen. Syst., 2013

Ordinally equivalent data: A measurement-theoretic look at formal concept analysis of fuzzy attributes.
Int. J. Approx. Reason., 2013

Closure-based constraints in formal concept analysis.
Discret. Appl. Math., 2013

Discovery of factors in matrices with grades
CoRR, 2013

Basic Level in Formal Concept Analysis: Interesting Concepts and Psychological Ramifications.
Proceedings of the IJCAI 2013, 2013

Toward reduction of formal fuzzy context.
Proceedings of the Joint IFSA World Congress and NAFIPS Annual Meeting, 2013

Beyond Boolean Matrix Decompositions: Toward Factor Analysis and Dimensionality Reduction of Ordinal Data.
Proceedings of the 2013 IEEE 13th International Conference on Data Mining, 2013

Relational algebra for multi-ranked similarity-based databases.
Proceedings of the IEEE Symposium on Foundations of Computational Intelligence, 2013

2012
Optimal decompositions of matrices with entries from residuated lattices.
J. Log. Comput., 2012

Concept lattices of isotone vs. antitone Galois connections in graded setting: Mutual reducibility revisited.
Inf. Sci., 2012

Formal concept analysis and linguistic hedges.
Int. J. Gen. Syst., 2012

Triadic concept lattices of data with graded attributes.
Int. J. Gen. Syst., 2012

Row and Column Spaces of Matrices over Residuated Lattices.
Fundam. Informaticae, 2012

Sup-t-norm and inf-residuum are one type of relational product: Unifying framework and consequences.
Fuzzy Sets Syst., 2012

Bivalent and other solutions of fuzzy relational equations via linguistic hedges.
Fuzzy Sets Syst., 2012

Attribute implications in similarity-based databases: semantic entailment and nonredundant bases.
Proceedings of the ACM Symposium on Applied Computing, 2012

Simple Proof of Basic Theorem for General Concept Lattices by Cartesian Representation.
Proceedings of the Modeling Decisions for Artificial Intelligence, 2012

An Efficient Reasoning Method for Dependencies over Similarity and Ordinal Data.
Proceedings of the Modeling Decisions for Artificial Intelligence, 2012

Basic Level of Concepts in Formal Concept Analysis.
Proceedings of the Formal Concept Analysis - 10th International Conference, 2012

Factor Analysis of Sports Data via Decomposition of Matrices with Grades.
Proceedings of The Ninth International Conference on Concept Lattices and Their Applications, 2012

Dimensionality Reduction in Boolean Data: Comparison of Four BMF Methods.
Proceedings of the Clustering High-Dimensional Data - First International Workshop, 2012

2011
Codd's Relational Model from the Point of View of Fuzzy Logic.
J. Log. Comput., 2011

Evaluation of IPAQ questionnaires supported by formal concept analysis.
Inf. Sci., 2011

Knowledge spaces with graded knowledge states.
Inf. Sci., 2011

Sup-t-norm and inf-residuum are a single type of relational equations.
Int. J. Gen. Syst., 2011

Similarity of Query Results in Similarity-Based Databases.
Proceedings of the Rough Sets and Knowledge Technology - 6th International Conference, 2011

What is a Fuzzy Concept Lattice? II.
Proceedings of the Rough Sets, Fuzzy Sets, Data Mining and Granular Computing, 2011

Zoom-In/Zoom-Out Algorithms for FCA with Attribute Granularity.
Proceedings of the Computer and Information Sciences II, 2011

Sensitivity Analysis for Declarative Relational Query Languages with Ordinal Ranks.
Proceedings of the Applications of Declarative Programming and Knowledge Management, 2011

Selecting Important Concepts Using Weights.
Proceedings of the Formal Concept Analysis - 9th International Conference, 2011

Factorizing Three-Way Ordinal Data Using Triadic Formal Concepts.
Proceedings of the Flexible Query Answering Systems - 9th International Conference, 2011

Fuzzy attribute logic with model constraints.
Proceedings of the 7th conference of the European Society for Fuzzy Logic and Technology, 2011

Closure Spaces of Isotone Galois Connections and Their Morphisms.
Proceedings of the AI 2011: Advances in Artificial Intelligence, 2011

Fuzzy Logic in Computer Science.
Proceedings of the Computer Science, The Hardware, Software and Heart of It, 2011

2010
Computing the Lattice of All Fixpoints of a Fuzzy Closure Operator.
IEEE Trans. Fuzzy Syst., 2010

Residuated Lattices of Size <= 12.
Order, 2010

Discovery of optimal factors in binary data via a novel method of matrix decomposition.
J. Comput. Syst. Sci., 2010

Editor's foreword.
J. Comput. Syst. Sci., 2010

Confluence and termination of fuzzy relations.
Inf. Sci., 2010

Central fuzzy sets.
Int. J. Gen. Syst., 2010

Mini-symposium on uncertainty and information in systems.
Int. J. Gen. Syst., 2010

Erratum to "Concepts and fuzzy sets: Misunderstandings, misconceptions, and oversights" [IJAR 15 (2009) 23-34].
Int. J. Approx. Reason., 2010

Erratum: Preface to special issue on concept lattice and their applications 2008.
Ann. Math. Artif. Intell., 2010

Preface to special issue on concept lattice and their applications 2008.
Ann. Math. Artif. Intell., 2010

Optimal decompositions of matrices with grades into binary and graded matrices.
Ann. Math. Artif. Intell., 2010

Query systems in similarity-based databases: logical foundations, expressive power, and completeness.
Proceedings of the 2010 ACM Symposium on Applied Computing (SAC), 2010

Background knowledge in formal concept analysis: constraints via closure operators.
Proceedings of the 2010 ACM Symposium on Applied Computing (SAC), 2010

Factorizing Three-Way Binary Data with Triadic Formal Concepts.
Proceedings of the Knowledge-Based and Intelligent Information and Engineering Systems, 2010

Factorizing three-way binary data.
Proceedings of the Computer and Information Sciences, 2010

Optimal Factorization of Three-Way Binary Data.
Proceedings of the 2010 IEEE International Conference on Granular Computing, 2010

Triadic Concept Analysis of Data with Fuzzy Attributes.
Proceedings of the 2010 IEEE International Conference on Granular Computing, 2010

Operators and Spaces Associated to Matrices with Grades and Their Decompositions II.
Proceedings of the 7th International Conference on Concept Lattices and Their Applications, 2010

2009
Formal Concept Analysis With Background Knowledge: Attribute Priorities.
IEEE Trans. Syst. Man Cybern. Part C, 2009

On Approximate Minimization of Fuzzy Automata.
J. Multiple Valued Log. Soft Comput., 2009

Grouping fuzzy sets by similarity.
Inf. Sci., 2009

Inducing decision trees via concept lattices.
Int. J. Gen. Syst., 2009

Concepts and fuzzy sets: Misunderstandings, misconceptions, and oversights.
Int. J. Approx. Reason., 2009

Optimal triangular decompositions of matrices with entries from residuated lattices.
Int. J. Approx. Reason., 2009

Factor Analysis of Incidence Data via Novel Decomposition of Matrices.
Proceedings of the Formal Concept Analysis, 7th International Conference, 2009

A Novel Approach to Cell Formation.
Proceedings of the Formal Concept Analysis, 7th International Conference, 2009

Confluence and related properties of fuzzy relations.
Proceedings of the FUZZ-IEEE 2009, 2009

Logical Foundations for Similarity-Based Databases.
Proceedings of the Database Systems for Advanced Applications, 2009

2008
Characterizing Trees in Concept Lattices.
Int. J. Uncertain. Fuzziness Knowl. Based Syst., 2008

Basic Algorithm for Attribute Implications and Functional Dependencies in Graded Setting.
Int. J. Found. Comput. Sci., 2008

Fast Factorization by Similarity of Fuzzy Concept Lattices with Hedges.
Int. J. Found. Comput. Sci., 2008

Adding background knowledge to formal concept analysis via attribute dependency formulas.
Proceedings of the 2008 ACM Symposium on Applied Computing (SAC), 2008

Compositions of fuzzy relations with hedges.
Proceedings of the FUZZ-IEEE 2008, 2008

Data Dependencies in Codd's Relational Model with Similarities.
Proceedings of the Handbook of Research on Fuzzy Information Processing in Databases, 2008

Relational Data, Formal Concept Analysis, and Graded Attributes.
Proceedings of the Handbook of Research on Fuzzy Information Processing in Databases, 2008

2007
Fast factorization by similarity in formal concept analysis of data with fuzzy attributes.
J. Comput. Syst. Sci., 2007

Fuzzy Concept Lattices Constrained by Hedges.
J. Adv. Comput. Intell. Intell. Informatics, 2007

A note on variable threshold concept lattices: Threshold-based operators are reducible to classical concept-forming operators.
Inf. Sci., 2007

On Elkan's theorems: Clarifying their meaning via simple proofs.
Int. J. Intell. Syst., 2007

Do exact shapes of fuzzy sets matter?
Int. J. Gen. Syst., 2007

Fuzzy control of neuromuscular block during general anesthesia - system design, development and implementation.
Int. J. Gen. Syst., 2007

Trees in Concept Lattices.
Proceedings of the Modeling Decisions for Artificial Intelligence, 2007

Lindig's Algorithm for Concept Lattices over Graded Attributes.
Proceedings of the Modeling Decisions for Artificial Intelligence, 2007

On Proofs and Rule of Multiplication in Fuzzy Attribute Logic.
Proceedings of the Foundations of Fuzzy Logic and Soft Computing, 2007

Counting Finite Residuated Lattices.
Proceedings of the Foundations of Fuzzy Logic and Soft Computing, 2007

Relational Algebra for Ranked Tables with Similarities: Properties and Implementation.
Proceedings of the Advances in Intelligent Data Analysis VII, 2007

Scaling, Granulation, and Fuzzy Attributes in Formal Concept Analysis.
Proceedings of the FUZZ-IEEE 2007, 2007

Knowledge Spaces, Attribute Dependencies, and Graded Knowledge States.
Proceedings of the FUZZ-IEEE 2007, 2007

Scales behind computational intelligence: exploring properties of finite lattices.
Proceedings of the IEEE Symposium on Foundations of Computational Intelligence, 2007

Formal Concepts as Optimal Factors in Boolean Factor Analysis: Implications and Experiments.
Proceedings of the Fifth International Conference on Concept Lattices and Their Applications, 2007

Evaluation of Questionnaires Supported by Formal Concept Analysis.
Proceedings of the Fifth International Conference on Concept Lattices and Their Applications, 2007

2006
Estimations of Similarity in Formal Concept Analysis of Data with Graded Attributes.
Proceedings of the Advances in Web Intelligence and Data Mining, 2006

Fuzzy attribute logic over complete residuated lattices.
J. Exp. Theor. Artif. Intell., 2006

An answer to Demirci's open question, a clarification of his result, and a correction of his interpretation of the result.
Fuzzy Sets Syst., 2006

Algebras with fuzzy equalities.
Fuzzy Sets Syst., 2006

Fuzzy Horn logic II.
Arch. Math. Log., 2006

Fuzzy Horn logic I.
Arch. Math. Log., 2006

Semantic Entailment of Attribute-dependency Formulas and Their Non-redundant Bases.
Proceedings of the 2006 Joint Conference on Information Sciences, 2006

Pavelka-style Fuzzy Logic for Attribute Implications.
Proceedings of the 2006 Joint Conference on Information Sciences, 2006

Axiomatization of Fuzzy Attribute Logic over Complete Residuated Lattices.
Proceedings of the 2006 Joint Conference on Information Sciences, 2006

Relational model of data over domains with similarities: An extension for similarity queries and knowledge extraction.
Proceedings of the 2006 IEEE International Conference on Information Reuse and Integration, 2006

Similarity issues in attribute implications from data with fuzzy attributes.
Proceedings of the 2006 IEEE International Conference on Information Reuse and Integration, 2006

Replacing full rectangles by dense rectangles: Concept lattices and attribute implications.
Proceedings of the 2006 IEEE International Conference on Information Reuse and Integration, 2006

Attribute Implications in a Fuzzy Setting.
Proceedings of the Formal Concept Analysis, 4th International Conference, 2006

Formal Concept Analysis with Constraints by Closure Operators.
Proceedings of the Conceptual Structures: Inspiration and Application, 2006

Thresholds and Shifted Attributes in Formal Concept Analysis of Data with Fuzzy Attributes.
Proceedings of the Conceptual Structures: Inspiration and Application, 2006

Dense rectangles in object-attribute data.
Proceedings of the 2006 IEEE International Conference on Granular Computing, 2006

Computing non-redundant bases of if-then rules from data tables with graded attributes.
Proceedings of the 2006 IEEE International Conference on Granular Computing, 2006

Data Tables with Similarity Relations: Functional Dependencies, Complete Rules and Non-redundant Bases.
Proceedings of the Database Systems for Advanced Applications, 2006

Graded LinClosure and Its Role in Relational Data Analysis.
Proceedings of the Concept Lattices and Their Applications, 2006

Direct Factorization by Similarity of Fuzzy Concept Lattices by Factorization of Input Data.
Proceedings of the Concept Lattices and Their Applications, 2006

Reducing the Size of If-Then Rules Generated from Data Tables with Graded Attributes.
Proceedings of the 2006 International Conference on Computational Intelligence for Modelling Control and Automation (CIMCA 2006), International Conference on Intelligent Agents, Web Technologies and Internet Commerce (IAWTIC 2006), 29 November, 2006

Codd's Relational Model of Data and Fuzzy Logic: Comparisons, Observations, and Some New Results.
Proceedings of the 2006 International Conference on Computational Intelligence for Modelling Control and Automation (CIMCA 2006), International Conference on Intelligent Agents, Web Technologies and Internet Commerce (IAWTIC 2006), 29 November, 2006

2005
Fuzzy Closure Operators with Truth Stressers.
Log. J. IGPL, 2005

Functional Dependencies of Data Tables Over Domains with Similarity Relations.
Proceedings of the 2nd Indian International Conference on Artificial Intelligence, 2005

Axiomatizations of Fuzzy Attribute Logic.
Proceedings of the 2nd Indian International Conference on Artificial Intelligence, 2005

Formal Concept Analysis Constrained by Attribute-Dependency Formulas.
Proceedings of the Formal Concept Analysis, Third International Conference, 2005

Crisply Generated Fuzzy Concepts.
Proceedings of the Formal Concept Analysis, Third International Conference, 2005

Implications from data with fuzzy attributes vs. scaled binary attributes.
Proceedings of the IEEE International Conference on Fuzzy Systems, 2005

Reducing the Size of Fuzzy Concept Lattices by Hedges.
Proceedings of the IEEE International Conference on Fuzzy Systems, 2005

What is a fuzzy concept lattice?
Proceedings of the CLA 2005 International Workshop on Concept Lattices and their Applications Olomouc, 2005

Formal concept analysis over attributes with levels of granularity.
Proceedings of the 2005 International Conference on Computational Intelligence for Modelling Control and Automation (CIMCA 2005), 2005

Fuzzy Attribute Implications: Computing Non-redundant Bases Using Maximal Independent Sets.
Proceedings of the AI 2005: Advances in Artificial Intelligence, 2005

Fuzzy Equational Logic
Studies in Fuzziness and Soft Computing 186, Springer, ISBN: 978-3-540-26254-1, 2005

2004
Similarity and Fuzzy Tolerance Spaces.
J. Log. Comput., 2004

Concept Equations.
J. Log. Comput., 2004

Formal concept analysis with hierarchically ordered attributes.
Int. J. Gen. Syst., 2004

Fuzzy interior operators.
Int. J. Gen. Syst., 2004

Lattice-type fuzzy order is uniquely given by its 1-cut: proof and consequences.
Fuzzy Sets Syst., 2004

Concept lattices and order in fuzzy logic.
Ann. Pure Appl. Log., 2004

Galois Connections with Truth Stressers: Foundations for Formal Concept Analysis of Object-Attribute Data with Fuzzy Attributes.
Proceedings of the Computational Intelligence, Theory and Applications, International Conference 8th Fuzzy Days, Dortmund, Germany, Sept. 29, 2004

Concept Lattices Constrained by Attribute Dependencies.
Proceedings of the Dateso 2004 Annual International Workshop on DAtabases, 2004

Concept Lattices Constrained by Equivalence Relations.
Proceedings of the CLA 2004 International Workshop on Concept Lattices and their Applications, 2004

Fast Factorization of Concept Lattices by Similarity: Solution and an Open Problem.
Proceedings of the CLA 2004 International Workshop on Concept Lattices and their Applications, 2004

2003
Review: "Facets of Systems Science" by George J. Klir.
Kybernetika, 2003

Cutlike semantics for fuzzy logic and its applications.
Int. J. Gen. Syst., 2003

Fuzzy Closure Operators Induced by Similarity.
Fundam. Informaticae, 2003

Birkhoff variety theorem and fuzzy logic.
Arch. Math. Log., 2003

2002
Learning rule base in linguistic expert systems.
Soft Comput., 2002

Fuzzy closure operators II: induced relations, representation, and examples.
Soft Comput., 2002

Logical Precision in Concept Lattices.
J. Log. Comput., 2002

Determinism and fuzzy automata.
Inf. Sci., 2002

On the capability of fuzzy set theory to represent concepts.
Int. J. Gen. Syst., 2002

Fuzzy equational logic.
Arch. Math. Log., 2002

2001
Lattices of Fixed Points of Fuzzy Galois Connections.
Math. Log. Q., 2001

Reduction and a Simple Proof of Characterization of Fuzzy Concept Lattices.
Fundam. Informaticae, 2001

2000
Representation of Concept Lattices by Bidirectional Associative Memories.
Neural Comput., 2000

Similarity relations in concept lattices.
J. Log. Comput., 2000

Fuzzy logical bidirectional associative memory.
Inf. Sci., 2000

Similarity relations and BK-relational products.
Inf. Sci., 2000

Model theory for fuzzy logic in the foundations of soft computing.
Proceedings of the IEEE International Conference on Systems, 2000

1999
Feedforward networks with fuzzy signals.
Soft Comput., 1999

Fuzzy Galois Connections.
Math. Log. Q., 1999

Logical Precision in Conceptual Structures.
Proceedings of the Third ICSC Symposia on Intelligent Industrial Automation (IIA'99) and Soft Computing (SOCO'99), 1999

1998
Object-oriented implementation of fuzzy logic systems.
Proceedings of the Intelligent Systems for Manufacturing: Multi-Agent Systems and Virtual Organizations, Proceedings of the BASYS, 1998


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