Waldemar W. Koczkodaj

According to our database, Waldemar W. Koczkodaj authored at least 51 papers between 1991 and 2024.

Collaborative distances:

• Dijkstra number of three.
• Erdős number of three.

2024

On homology groups for pairwise comparisons method.

Waldemar W. Koczkodaj, Witold Pedrycz, Alexander Pigazzini, Yingli Song, Jacek Szybowski

Inf. Sci., 2024

Computationally efficient orthogonalization for pairwise comparisons method.

Julio Benítez, Waldemar W. Koczkodaj, Adam Kowalczyk

Appl. Math. Comput., 2024

2023

Combating harmful Internet use with peer assessment and differential evolution.

Waldemar W. Koczkodaj, M. Mazurek, Witold Pedrycz, E. Rogalska, R. Roth, Dominik Strzalka, A. Szymanska, Alicja Wolny-Dominiak, Marc Woodbury-Smith, O. S. Xue, R. Zbyrowski

CoRR, 2023

2021

Pairwise comparisons matrix decomposition into approximation and orthogonal component using Lie theory.

Waldemar W. Koczkodaj, Victor W. Marek, Yusuf Yayli

Int. J. Approx. Reason., 2021

2020

On the use of group theory to generalize elements of pairwise comparisons matrix: A cautionary note.

Waldemar W. Koczkodaj, Fang Liu, Victor W. Marek, Jirí Mazurek, Miroslaw Mazurek, Ludmil Mikhailov, Cenap Özel, Witold Pedrycz, Artur Przelaskowski, Andrew Schumann, Ryszard Smarzewski, Dominik Strzalka, Jacek Szybowski, Yusuf Yayli

Int. J. Approx. Reason., 2020

On Orthogonal Projections on the Space of Consistent Pairwise Comparisons Matrices.

Waldemar W. Koczkodaj, Ryszard Smarzewski, Jacek Szybowski

Fundam. Informaticae, 2020

2019

Optimizing predictability of rating scales by differential evolution for the use by collective intelligent information and database systems.

Waldemar W. Koczkodaj, Tamar Kakiashvili, Feng Li, Alicja Wolny-Dominiak, Jolanta Masiak

J. Intell. Fuzzy Syst., 2019

2018

Somerville Happiness Survey.

Waldemar W. Koczkodaj

Dataset, May, 2018

RatingScaleReduction package: stepwise rating scale item reduction without predictability loss.

Waldemar W. Koczkodaj, Feng Li, Alicja Wolny-Dominiak

R J., 2018

Axiomatization of inconsistency indicators for pairwise comparisons.

Waldemar W. Koczkodaj, Roman Urban

Int. J. Approx. Reason., 2018

Inconsistency of special cases of pairwise comparisons matrices.

Viera Cernanová, Waldemar W. Koczkodaj, Jacek Szybowski

Int. J. Approx. Reason., 2018

Consistency-Driven Pairwise Comparisons Approach to Software Product Management and Quality Measurement.

Waldemar W. Koczkodaj, Pawel Dymora, Miroslaw Mazurek, Dominik Strzalka

Proceedings of the Contemporary Complex Systems and Their Dependability, 2018

2017

How to reduce the number of rating scale items without predictability loss?

Waldemar W. Koczkodaj, Tamar Kakiashvili, A. Szymanska, J. Montero-Marin, Ricardo Araya, Javier García-Campayo, K. Rutkowski, Dominik Strzalka

Scientometrics, 2017

On normalization of inconsistency indicators in pairwise comparisons.

Waldemar W. Koczkodaj, Jean-Pierre Magnot, Jirí Mazurek, James F. Peters, Hojjat Rakhshani, Michael Soltys, Dominik Strzalka, Jacek Szybowski, Arturo Tozzi

Int. J. Approx. Reason., 2017

2016

Pairwise Comparisons Rating Scale Paradox.

Waldemar W. Koczkodaj

Trans. Comput. Collect. Intell., 2016

Inconsistency indicator maps on groups for pairwise comparisons.

Waldemar W. Koczkodaj, Jacek Szybowski, Eliza Wajch

Int. J. Approx. Reason., 2016

Important Facts and Observations about Pairwise Comparisons (the special issue edition).

Waldemar W. Koczkodaj, Ludmil Mikhailov, Grzegorz Redlarski, Michael Soltys, Jacek Szybowski, Gaik Tamazian, Eliza Wajch, Kevin Kam Fung Yuen

Fundam. Informaticae, 2016

The Limit of Inconsistency Reduction in Pairwise Comparisons.

Waldemar W. Koczkodaj, Jacek Szybowski

Int. J. Appl. Math. Comput. Sci., 2016

A Conception of Pairwise Comparisons Model for Selection of Appropriate Body Surface Area Calculation Formula.

Grzegorz Redlarski, Waldemar W. Koczkodaj, Marek Krawczuk, Janusz Siebert, Katarzyna E. Mrozik, Aleksander Palkowski, Piotr Tojza

Proceedings of the 2016 Federated Conference on Computer Science and Information Systems, 2016

Developing Coalitions by Pairwise Comparisons: a Preliminary Study.

Waldemar W. Koczkodaj, Anna Tatarczak

Proceedings of the Position Papers of the 2016 Federated Conference on Computer Science and Information Systems, 2016

2015

Fast Convergence of Distance-based Inconsistency in Pairwise Comparisons.

Waldemar W. Koczkodaj, Marek Kosiek, Jacek Szybowski, Ding Xu

Fundam. Informaticae, 2015

The key properties of inconsistency indicators for a triad in pairwise comparison matrices.

Waldemar W. Koczkodaj, Jacek Szybowski

CoRR, 2015

On the Convergence of the Pairwise Comparisons Inconsistency Reduction Process.

Waldemar W. Koczkodaj, Jacek Szybowski

CoRR, 2015

An Algorithm for the Optimal Consistent Approximation to a Pairwise Comparisons Matrix by Orthogonal Projections.

Waldemar W. Koczkodaj, Marian Orlowski

CoRR, 2015

A Monte Carlo Study of Pairwise Comparisons.

Michael W. Herman, Waldemar W. Koczkodaj

CoRR, 2015

Pairwise comparisons simplified.

Waldemar W. Koczkodaj, Jacek Szybowski

Appl. Math. Comput., 2015

2014

On the quality evaluation of scientific entities in Poland supported by consistency-driven pairwise comparisons method.

Waldemar W. Koczkodaj, Konrad Kulakowski, Antoni Ligeza

Scientometrics, 2014

On Axiomatization of Inconsistency Indicators for Pairwise Comparisons.

Waldemar W. Koczkodaj, Ryszard Szwarc

Fundam. Informaticae, 2014

2013

A note on relevance of diagnostic classification and rating scales used in psychiatry.

Yiqun Gan, Tamar Kakiashvili, Waldemar W. Koczkodaj, Feng Li

Comput. Methods Programs Biomed., 2013

2012

On some convexity properties of the Least Squares Method for pairwise comparisons matrices without the reciprocity condition.

Jándor Fülöp, Waldemar W. Koczkodaj, S. J. Szarek

J. Glob. Optim., 2012

Improving the medical scale predictability by the pairwise comparisons method: Evidence from a clinical data study.

Tamar Kakiashvili, Waldemar W. Koczkodaj, Marc Woodbury-Smith

Comput. Methods Programs Biomed., 2012

2011

An LP-based inconsistency monitoring of pairwise comparison matrices.

Sándor Bozóki, Jándor Fülöp, Waldemar W. Koczkodaj

Math. Comput. Model., 2011

A simplified implementation of the least squares solution for pairwise comparisons matrices.

Marcin Anholcer, Volodymyr Babiy, Sándor Bozóki, Waldemar W. Koczkodaj

Central Eur. J. Oper. Res., 2011

Improving the predictiveness of ICU medical scales by the method of pairwise comparisons.

Mohammed A. Alqarni, Yassen Arabi, Tamar Kakiashvili, Mohammed Khedr, Waldemar W. Koczkodaj, J. Leszek, Artur Przelaskowski, K. Rutkowski

Proceedings of the Federated Conference on Computer Science and Information Systems, 2011

2010

A Different Perspective on a Scale for Pairwise Comparisons.

Jándor Fülöp, Waldemar W. Koczkodaj, S. J. Szarek

Trans. Comput. Collect. Intell., 2010

On distance-based inconsistency reduction algorithms for pairwise comparisons.

Waldemar W. Koczkodaj, S. J. Szarek

Log. J. IGPL, 2010

Selecting the best strategy in a software certification process.

Waldemar W. Koczkodaj, Vova Babiy, Agnieszka D. Bogobowicz, Ryszard Janicki, Alan Wassyng

Proceedings of the International Multiconference on Computer Science and Information Technology, 2010

2009

Benefits of Using Tabular Expressions in Planning Health Services.

Volodymyr Babiy, Ryszard Janicki, Tiffany Jingco, Tamar Kakiashvili, Waldemar W. Koczkodaj, Marc Woodbury-Smith

Proceedings of the 2009 International Conference on Software Engineering Research & Practice, 2009

2008

Assessing the properties of the World Health Organization's Quality of Life Index.

Tamar Kakiashvili, Waldemar W. Koczkodaj, Phyllis Montgomery, Kalpdrum Passi, Ryszard Tadeusiewicz

Proceedings of the International Multiconference on Computer Science and Information Technology, 2008

2007

Attacking the Web Cancer with the Automatic Understanding Approach.

Ratvinder Singh Grewal, Ryszard Janicki, Tamar Kakiashvili, K. Kielan, Waldemar W. Koczkodaj, Kalpdrum Passi, Ryszard Tadeusiewicz

Proceedings of the Advances in Intelligent Web Mastering, Proceedings of the 5th Atlantic Web Intelligence Conference - AWIC 2007, Fontainebleau, France, June 25, 2007

1999

Managing Null Entries in Pairwise Comparisons.

Waldemar W. Koczkodaj, Michael W. Herman, Marian Orlowski

Knowl. Inf. Syst., 1999

1998

Myths about Rough Set Theory.

Waldemar W. Koczkodaj, Marian Orlowski, V. Wiktor Marek

Commun. ACM, 1998

A weak order solution to a group ranking and consistency-driven pairwise comparisons.

Ryszard Janicki, Waldemar W. Koczkodaj

Appl. Math. Comput., 1998

1997

Using Consistency-driven Pairwise Comparisons in Knowledge-based Systems.

Waldemar W. Koczkodaj, Michael W. Herman, Marian Orlowski

Proceedings of the Sixth International Conference on Information and Knowledge Management (CIKM'97), 1997

1996

Convergence of Inconsistency Algorithms for the Pairwise Comparisons.

Wlodzimierz Holsztynski, Waldemar W. Koczkodaj

Inf. Process. Lett., 1996

A Monte Carlo Study of Parwise Comparison.

Michael W. Herman, Waldemar W. Koczkodaj

Inf. Process. Lett., 1996

A self-modifiable approach to scheduling and mapping algorithms in multiprocessor systems.

Eugeniusz Eberbach, Waldemar W. Koczkodaj

Int. J. Comput. Math., 1996

1994

APL2 implementation of a new definition of consistency of pairwise comparisons.

Michael W. Herman, Waldemar W. Koczkodaj

ACM SIGAPL APL Quote Quad, 1994

Generalization of a New Definition of Consistency for Pairwise Comparisons.

Zbigniew Duszak, Waldemar W. Koczkodaj

Inf. Process. Lett., 1994

1992

Principal Components and the Accuracy of Machine Learning.

Zbigniew Duszak, Waldemar W. Koczkodaj

Proceedings of the International Conference on Database and Expert Systems Applications, 1992

1991

Guest Editor's Introduction: Induction Algorithms.

Waldemar W. Koczkodaj

Int. J. Softw. Eng. Knowl. Eng., 1991