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ORCIDWaldemar W. Koczkodaj
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- affiliation: Laurentian University, Subury, Ontario, Canada
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2020 – today
- 2024
[j35]Julio Benítez, Waldemar W. Koczkodaj, Adam Kowalczyk:
Computationally efficient orthogonalization for pairwise comparisons method. Appl. Math. Comput. 473: 128651 (2024)- [j34]Waldemar W. Koczkodaj
, Witold Pedrycz, Alexander Pigazzini, Yingli Song, Jacek Szybowski:
On homology groups for pairwise comparisons method. Inf. Sci. 681: 121195 (2024) - [i14]Julio Benítez, Waldemar W. Koczkodaj, Adam Kowalczyk:
Computationally efficient orthogonalization for pairwise comparisons method. CoRR abs/2404.15286 (2024) - 2023
- [i13]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:
Combating harmful Internet use with peer assessment and differential evolution. CoRR abs/2301.10232 (2023) - 2021
- [j33]Waldemar W. Koczkodaj, Victor W. Marek, Yusuf Yayli:
Pairwise comparisons matrix decomposition into approximation and orthogonal component using Lie theory. Int. J. Approx. Reason. 139: 201-210 (2021) - 2020
- [j32]Waldemar W. Koczkodaj, Ryszard Smarzewski, Jacek Szybowski:
On Orthogonal Projections on the Space of Consistent Pairwise Comparisons Matrices. Fundam. Informaticae 172(4): 379-397 (2020) - [j31]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:
On the use of group theory to generalize elements of pairwise comparisons matrix: A cautionary note. Int. J. Approx. Reason. 124: 59-65 (2020) - [i12]Waldemar W. Koczkodaj, Ryszard Smarzewski, Jacek Szybowski:
On Orthogonal Projections on the Space of Consistent Pairwise Comparisons Matrices. CoRR abs/2002.06607 (2020)
2010 – 2019
- 2019
- [j30]Waldemar W. Koczkodaj, Tamar Kakiashvili, Feng Li, Alicja Wolny-Dominiak, Jolanta Masiak:
Optimizing predictability of rating scales by differential evolution for the use by collective intelligent information and database systems. J. Intell. Fuzzy Syst. 37(6): 7545-7553 (2019) - 2018
- [j29]Waldemar W. Koczkodaj, Roman Urban:
Axiomatization of inconsistency indicators for pairwise comparisons. Int. J. Approx. Reason. 94: 18-29 (2018) - [j28]Viera Cernanová, Waldemar W. Koczkodaj, Jacek Szybowski:
Inconsistency of special cases of pairwise comparisons matrices. Int. J. Approx. Reason. 95: 36-45 (2018) - [j27]Waldemar W. Koczkodaj, Feng Li, Alicja Wolny-Dominiak:
RatingScaleReduction package: stepwise rating scale item reduction without predictability loss. R J. 10(1): 43 (2018) - [c10]Waldemar W. Koczkodaj, Pawel Dymora, Miroslaw Mazurek, Dominik Strzalka:
Consistency-Driven Pairwise Comparisons Approach to Software Product Management and Quality Measurement. DepCoS-RELCOMEX 2018: 292-305 - [d1]Waldemar W. Koczkodaj:
Somerville Happiness Survey. UCI Machine Learning Repository, 2018
- 2017
- [j26]Waldemar W. Koczkodaj, Jean-Pierre Magnot, Jirí Mazurek, James F. Peters, Hojjat Rakhshani, Michael Soltys, Dominik Strzalka, Jacek Szybowski, Arturo Tozzi:
On normalization of inconsistency indicators in pairwise comparisons. Int. J. Approx. Reason. 86: 73-79 (2017) - [j25]Waldemar W. Koczkodaj, Tamar Kakiashvili, A. Szymanska, J. Montero-Marin, Ricardo Araya, Javier García-Campayo, K. Rutkowski, Dominik Strzalka:
How to reduce the number of rating scale items without predictability loss? Scientometrics 111(2): 581-593 (2017) - [i11]Waldemar W. Koczkodaj, Jean-Pierre Magnot, Jirí Mazurek, James F. Peters, Hojjat Rakhshani, Michael Soltys, Dominik Strzalka, Jacek Szybowski, Arturo Tozzi:
On normalization of inconsistency indicators in pairwise comparisons. CoRR abs/1702.07205 (2017) - 2016
- [j24]Waldemar W. Koczkodaj, Jacek Szybowski:
The Limit of Inconsistency Reduction in Pairwise Comparisons. Int. J. Appl. Math. Comput. Sci. 26(3): 721-729 (2016) - [j23]Waldemar W. Koczkodaj, Ludmil Mikhailov, Grzegorz Redlarski, Michael Soltys, Jacek Szybowski, Gaik Tamazian, Eliza Wajch, Kevin Kam Fung Yuen:
Important Facts and Observations about Pairwise Comparisons (the special issue edition). Fundam. Informaticae 144(3-4): 291-307 (2016) - [j22]Waldemar W. Koczkodaj, Jacek Szybowski, Eliza Wajch:
Inconsistency indicator maps on groups for pairwise comparisons. Int. J. Approx. Reason. 69: 81-90 (2016) - [j21]Waldemar W. Koczkodaj:
Pairwise Comparisons Rating Scale Paradox. Trans. Comput. Collect. Intell. 22: 1-9 (2016) - [c9]Waldemar W. Koczkodaj, Anna Tatarczak:
Developing Coalitions by Pairwise Comparisons: a Preliminary Study. FedCSIS (Position Papers) 2016: 189-193 - [c8]Grzegorz Redlarski, Waldemar W. Koczkodaj, Marek Krawczuk, Janusz Siebert, Katarzyna E. Mrozik, Aleksander Palkowski, Piotr Tojza:
A Conception of Pairwise Comparisons Model for Selection of Appropriate Body Surface Area Calculation Formula. FedCSIS 2016: 303-308 - 2015
- [j20]Waldemar W. Koczkodaj, Jacek Szybowski:
Pairwise comparisons simplified. Appl. Math. Comput. 253: 387-394 (2015) - [j19]Waldemar W. Koczkodaj, Marek Kosiek, Jacek Szybowski, Ding Xu:
Fast Convergence of Distance-based Inconsistency in Pairwise Comparisons. Fundam. Informaticae 137(3): 355-367 (2015) - [i10]Waldemar W. Koczkodaj, Jacek Szybowski:
On the Convergence of the Pairwise Comparisons Inconsistency Reduction Process. CoRR abs/1505.01325 (2015) - [i9]Michael W. Herman, Waldemar W. Koczkodaj:
A Monte Carlo Study of Pairwise Comparisons. CoRR abs/1505.01888 (2015) - [i8]Sándor Bozóki, Jándor Fülöp, Waldemar W. Koczkodaj:
An LP-based inconsistency monitoring of pairwise comparison matrices. CoRR abs/1505.01902 (2015) - [i7]Waldemar W. Koczkodaj, Marian Orlowski:
An Algorithm for the Optimal Consistent Approximation to a Pairwise Comparisons Matrix by Orthogonal Projections. CoRR abs/1505.01903 (2015) - [i6]Waldemar W. Koczkodaj, Jacek Szybowski:
The key properties of inconsistency indicators for a triad in pairwise comparison matrices. CoRR abs/1505.05220 (2015) - [i5]Waldemar W. Koczkodaj, Michael W. Herman, Marian Orlowski:
Managing Null Entries in Pairwise Comparisons. CoRR abs/1505.05334 (2015) - [i4]Jándor Fülöp, Waldemar W. Koczkodaj, Stanislaw J. Szarek:
A different perspective on a scale for pairwise comparisons. CoRR abs/1508.01191 (2015) - [i3]Waldemar W. Koczkodaj:
Pairwise Comparisons Rating Scale Paradox. CoRR abs/1511.07540 (2015) - 2014
- [j18]Waldemar W. Koczkodaj, Ryszard Szwarc:
On Axiomatization of Inconsistency Indicators for Pairwise Comparisons. Fundam. Informaticae 132(4): 485-500 (2014) - [j17]Waldemar W. Koczkodaj, Konrad Kulakowski, Antoni Ligeza:
On the quality evaluation of scientific entities in Poland supported by consistency-driven pairwise comparisons method. Scientometrics 99(3): 911-926 (2014) - 2013
- [j16]Yiqun Gan, Tamar Kakiashvili, Waldemar W. Koczkodaj, Feng Li:
A note on relevance of diagnostic classification and rating scales used in psychiatry. Comput. Methods Programs Biomed. 112(1): 16-21 (2013) - [i2]Waldemar W. Koczkodaj, Ryszard Szwarc:
On Axiomatization of Inconsistency Indicators in Pairwise Comparisons. CoRR abs/1307.6272 (2013) - [i1]Waldemar W. Koczkodaj, Jacek Szybowski:
Pairwise Comparisons Simplified. CoRR abs/1311.6863 (2013) - 2012
- [j15]Tamar Kakiashvili, Waldemar W. Koczkodaj, Marc Woodbury-Smith:
Improving the medical scale predictability by the pairwise comparisons method: Evidence from a clinical data study. Comput. Methods Programs Biomed. 105(3): 210-216 (2012) - [j14]Jándor Fülöp, Waldemar W. Koczkodaj, S. J. Szarek:
On some convexity properties of the Least Squares Method for pairwise comparisons matrices without the reciprocity condition. J. Glob. Optim. 54(4): 689-706 (2012) - 2011
- [j13]Marcin Anholcer, Volodymyr Babiy, Sándor Bozóki, Waldemar W. Koczkodaj:
A simplified implementation of the least squares solution for pairwise comparisons matrices. Central Eur. J. Oper. Res. 19(4): 439-444 (2011) - [j12]Sándor Bozóki, Jándor Fülöp, Waldemar W. Koczkodaj:
An LP-based inconsistency monitoring of pairwise comparison matrices. Math. Comput. Model. 54(1-2): 789-793 (2011) - [c7]Mohammed A. Alqarni, Yassen Arabi, Tamar Kakiashvili, Mohammed Khedr, Waldemar W. Koczkodaj, J. Leszek, Artur Przelaskowski, K. Rutkowski:
Improving the predictiveness of ICU medical scales by the method of pairwise comparisons. FedCSIS 2011: 11-17 - 2010
- [j11]Waldemar W. Koczkodaj, S. J. Szarek:
On distance-based inconsistency reduction algorithms for pairwise comparisons. Log. J. IGPL 18(6): 859-869 (2010) - [j10]Jándor Fülöp, Waldemar W. Koczkodaj, S. J. Szarek:
A Different Perspective on a Scale for Pairwise Comparisons. Trans. Comput. Collect. Intell. 1: 71-84 (2010) - [c6]Waldemar W. Koczkodaj, Vova Babiy, Agnieszka D. Bogobowicz, Ryszard Janicki, Alan Wassyng:
Selecting the best strategy in a software certification process. IMCSIT 2010: 53-58
2000 – 2009
- 2009
- [c5]Volodymyr Babiy, Ryszard Janicki, Tiffany Jingco, Tamar Kakiashvili, Waldemar W. Koczkodaj, Marc Woodbury-Smith:
Benefits of Using Tabular Expressions in Planning Health Services. Software Engineering Research and Practice 2009: 99-102 - 2008
- [c4]Tamar Kakiashvili, Waldemar W. Koczkodaj, Phyllis Montgomery, Kalpdrum Passi, Ryszard Tadeusiewicz:
Assessing the properties of the World Health Organization's Quality of Life Index. IMCSIT 2008: 151-154 - 2007
- [c3]Ratvinder Singh Grewal, Ryszard Janicki, Tamar Kakiashvili, K. Kielan, Waldemar W. Koczkodaj, Kalpdrum Passi, Ryszard Tadeusiewicz:
Attacking the Web Cancer with the Automatic Understanding Approach. AWIC 2007: 136-141
1990 – 1999
- 1999
- [j9]Waldemar W. Koczkodaj, Michael W. Herman, Marian Orlowski:
Managing Null Entries in Pairwise Comparisons. Knowl. Inf. Syst. 1(1): 119-125 (1999) - 1998
- [j8]Ryszard Janicki, Waldemar W. Koczkodaj:
A weak order solution to a group ranking and consistency-driven pairwise comparisons. Appl. Math. Comput. 94(2-3): 227-241 (1998) - [j7]Waldemar W. Koczkodaj, Marian Orlowski, V. Wiktor Marek:
Myths about Rough Set Theory. Commun. ACM 41(11): 102-103 (1998) - 1997
- [c2]Waldemar W. Koczkodaj, Michael W. Herman, Marian Orlowski:
Using Consistency-driven Pairwise Comparisons in Knowledge-based Systems. CIKM 1997: 91-96 - 1996
- [j6]Eugeniusz Eberbach, Waldemar W. Koczkodaj:
A self-modifiable approach to scheduling and mapping algorithms in multiprocessor systems. Int. J. Comput. Math. 59(3-4): 131-150 (1996) - [j5]Michael W. Herman, Waldemar W. Koczkodaj:
A Monte Carlo Study of Parwise Comparison. Inf. Process. Lett. 57(1): 25-29 (1996) - [j4]Wlodzimierz Holsztynski, Waldemar W. Koczkodaj:
Convergence of Inconsistency Algorithms for the Pairwise Comparisons. Inf. Process. Lett. 59(4): 197-202 (1996) - 1994
- [j3]Zbigniew Duszak, Waldemar W. Koczkodaj:
Generalization of a New Definition of Consistency for Pairwise Comparisons. Inf. Process. Lett. 52(5): 273-276 (1994) - [j2]Michael W. Herman, Waldemar W. Koczkodaj:
APL2 implementation of a new definition of consistency of pairwise comparisons. ACM SIGAPL APL Quote Quad 24(4): 37-40 (1994) - 1993
- [e4]Osman Abou-Rabia, Carl K. Chang, Waldemar W. Koczkodaj:
Computing and Information - ICCI'93, Fifth International Conference on Computing and Information, Sudbury, Ontario, Canada, May 27-29, 1993, Proceedings. IEEE Computer Society 1993, ISBN 0-8186-4212-2 [contents] - 1992
- [c1]Zbigniew Duszak, Waldemar W. Koczkodaj:
Principal Components and the Accuracy of Machine Learning. DEXA 1992: 421-426 - [e3]Waldemar W. Koczkodaj, Peter E. Lauer, Anestis A. Toptsis:
Computing and Information - ICCI'92, Fourth International Conference on Computing and Information, Toronto, Ontario, Canada, May 28-30, 1992, Proceedings. IEEE Computer Society 1992, ISBN 0-8186-2812-X [contents] - 1991
- [j1]Waldemar W. Koczkodaj:
Guest Editor's Introduction: Induction Algorithms. Int. J. Softw. Eng. Knowl. Eng. 1(4): 409-411 (1991) - [e2]Frank K. H. A. Dehne, Frantisek Fiala, Waldemar W. Koczkodaj:
Advances in Computing and Information - ICCI'91, International Conference on Computing and Information, Ottawa, Canada, May 27-29, 1991, Proceedings. Lecture Notes in Computer Science 497, Springer 1991, ISBN 3-540-54029-6 [contents] - 1990
- [e1]Selim G. Akl, Frantisek Fiala, Waldemar W. Koczkodaj:
Advances in Computing and Information - ICCI'90, International Conference on Computing and Information, Niagara Falls, Canada, May 23-26, 1990, Proceedings. Lecture Notes in Computer Science 468, Springer 1990, ISBN 3-540-53504-7 [contents]
Coauthor Index
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