Metrics and orders in space of fuzzy numbers. - Przemyslaw Grzegorzewski (Fuzzy Sets Syst., 1998)

Interval Aggregation in Data Mining. - Przemyslaw Grzegorzewski (FQAS, 2000)

Testing statistical hypotheses with vague data. - Przemyslaw Grzegorzewski (Fuzzy Sets Syst., 2000)

Estimation of the mean lifetime from vague data. - Przemyslaw Grzegorzewski (EUSFLAT Conf., 2001)

Fuzzy quering and random data. - Przemyslaw Grzegorzewski; Edyta Mrówka (EUSFLAT Conf., 2001)

Fuzzy tests - defuzzification and randomization. - Przemyslaw Grzegorzewski (Fuzzy Sets Syst., 2001)

Nearest interval approximation of a fuzzy number. - Przemyslaw Grzegorzewski (Fuzzy Sets Syst., 2002)

Distances and orderings in a family of intuitionistic fuzzy numbers. - Przemyslaw Grzegorzewski (EUSFLAT Conf., 2003)

Flexible querying via intuitionistic fuzzy sets. - Przemyslaw Grzegorzewski; Edyta Mrówka (EUSFLAT Conf., 2003)

On measuring association between preference systems. - Przemyslaw Grzegorzewski (FUZZ-IEEE, 2004)

Subsethood measure for intuitionistic fuzzy sets. - Przemyslaw Grzegorzewski; Edyta Mrówka (FUZZ-IEEE, 2004)

Distances between intuitionistic fuzzy sets and/or interval-valued fuzzy sets based on the Hausdorff metric. - Przemyslaw Grzegorzewski (Fuzzy Sets Syst., 2004)

Two-Sample Median Test for Vague Data. - Przemyslaw Grzegorzewski (EUSFLAT Conf., 2005)

Friedman's test with missing observations. - Edyta Mrówka; Przemyslaw Grzegorzewski (EUSFLAT Conf., 2005)

Trapezoidal approximations of fuzzy numbers. - Przemyslaw Grzegorzewski; Edyta Mrówka (Fuzzy Sets Syst., 2005)

Some notes on (Atanassov's) intuitionistic fuzzy sets. - Przemyslaw Grzegorzewski; Edyta Mrówka (Fuzzy Sets Syst., 2005)

Friedman's Test for Ambiguous and Missing Data. - Edyta Mrówka; Przemyslaw Grzegorzewski (SMPS, 2006)

The coefficient of concordance for vague data. - Przemyslaw Grzegorzewski (Comput. Stat. Data Anal., 2006)

Trapezoidal approximations of fuzzy numbers - revisited. - Przemyslaw Grzegorzewski; Edyta Mrówka (Fuzzy Sets Syst., 2007)

Flexible querying via if-sets. - Przemyslaw Grzegorzewski; Edyta Mrówka (Int. J. Intell. Syst., 2007)

Statistics with Vague Data and the Robustness to Data Representation. - Przemyslaw Grzegorzewski (SMPS, 2008)

Trapezoidal approximations of fuzzy numbers preserving the expected interval - Algorithms and properties. - Przemyslaw Grzegorzewski (Fuzzy Sets Syst., 2008)

Possible and Necessary h-Indices. - Marek Gagolewski; Przemyslaw Grzegorzewski (IFSA/EUSFLAT Conf., 2009)

Weighted Trapezoidal Approximations of Fuzzy Numbers. - Przemyslaw Grzegorzewski; Karolina Pasternak-Winiarska (IFSA/EUSFLAT Conf., 2009)

Nonlinear-shaped Approximation of Fuzzy Numbers. - Przemyslaw Grzegorzewski; Luciano Stefanini (IFSA/EUSFLAT Conf., 2009)

Bi-symmetrically Weighted Trapezoidal Approximations of Fuzzy Numbers. - Przemyslaw Grzegorzewski; Karolina Pasternak-Winiarska (ISDA, 2009)

k-sample median test for vague data. - Przemyslaw Grzegorzewski (Int. J. Intell. Syst., 2009)

A geometric approach to the construction of scientific impact indices. - Marek Gagolewski; Przemyslaw Grzegorzewski (Scientometrics, 2009)

Kendall's correlation coefficient for vague preferences. - Przemyslaw Grzegorzewski (Soft Comput., 2009)

Arity-Monotonic Extended Aggregation Operators. - Marek Gagolewski; Przemyslaw Grzegorzewski (IPMU (1), 2010)

Trapezoidal Approximation of Fuzzy Numbers Based on Sample Data. - Przemyslaw Grzegorzewski (IPMU (2), 2010)

S-Statistics and Their Basic Properties. - Marek Gagolewski; Przemyslaw Grzegorzewski (SMPS, 2010)

Soft Methods in Trend Detection. - Piotr Ladyzynski; Przemyslaw Grzegorzewski (SMPS, 2010)

On the Properties of Probabilistic Implications. - Przemyslaw Grzegorzewski (Eurofuse, 2011)

Axiomatic characterizations of (quasi-) L-statistics and S-statistics and the Producer Assessment Problem. - Marek Gagolewski; Przemyslaw Grzegorzewski (EUSFLAT Conf., 2011)

Trapezoidal approximations of fuzzy numbers with restrictions on the support and core. - Przemyslaw Grzegorzewski; Karolina Pasternak-Winiarska (EUSFLAT Conf., 2011)

Spearman's Rank Correlation Coefficient for Vague Preferences. - Przemyslaw Grzegorzewski; Paulina Ziembinska (FQAS, 2011)

Trapezoidal approximation and aggregation. - Adrian I. Ban; Lucian C. Coroianu; Przemyslaw Grzegorzewski (Fuzzy Sets Syst., 2011)

Possibilistic analysis of arity-monotonic aggregation operators and its relation to bibliometric impact assessment of individuals. - Marek Gagolewski; Przemyslaw Grzegorzewski (Int. J. Approx. Reason., 2011)

On possible and necessary inclusion of intuitionistic fuzzy sets. - Przemyslaw Grzegorzewski (Inf. Sci., 2011)

The inclusion-exclusion principle for IF-events. - Przemyslaw Grzegorzewski (Inf. Sci., 2011)

Retrieving Informative Content from Web Pages with Conditional Learning of Support Vector Machines and Semantic Analysis. - Piotr Ladyzynski; Przemyslaw Grzegorzewski (ICAISC (2), 2012)

Survival Implications. - Przemyslaw Grzegorzewski (IPMU (2), 2012)

On the Interval Approximation of Fuzzy Numbers. - Przemyslaw Grzegorzewski (IPMU (3), 2012)

A fixed-shape fuzzy median of a fuzzy sample. - Adrian I. Ban; Lucian C. Coroianu; Przemyslaw Grzegorzewski (EUSFLAT Conf., 2013)

Stock Trading with Random Forests, Trend Detection Tests and Force Index Volume Indicators. - Piotr Ladyzynski; Kamil Zbikowski; Przemyslaw Grzegorzewski (ICAISC (2), 2013)

Granular regression. - Przemyslaw Grzegorzewski (IFSA/NAFIPS, 2013)

Particle swarm intelligence tunning of fuzzy geometric protoforms for price patterns recognition and stock trading. - Piotr Ladyzynski; Przemyslaw Grzegorzewski (Expert Syst. Appl., 2013)

Nearest piecewise linear approximation of fuzzy numbers. - Lucian C. Coroianu; Marek Gagolewski; Przemyslaw Grzegorzewski (Fuzzy Sets Syst., 2013)

Probabilistic implications. - Przemyslaw Grzegorzewski (Fuzzy Sets Syst., 2013)

Fuzzy number approximation via shadowed sets. - Przemyslaw Grzegorzewski (Inf. Sci., 2013)

On some basic concepts in probability of IF-events. - Przemyslaw Grzegorzewski (Inf. Sci., 2013)

On Measuring Association between Groups of Rankings in Recommender Systems. - Hanna Lacka; Przemyslaw Grzegorzewski (ICAISC (2), 2014)

A Recommender System Based on Customer Reviews Mining. - Pawel Ladyzynski; Przemyslaw Grzegorzewski (ICAISC (2), 2014)

Laws of Contraposition and Law of Importation for Probabilistic Implications and Probabilistic S-implications. - Michal Baczynski 001; Przemyslaw Grzegorzewski; Wanda Niemyska (IPMU (1), 2014)

Piecewise Linear Approximation of Fuzzy Numbers Preserving the Support and Core. - Lucian C. Coroianu; Marek Gagolewski; Przemyslaw Grzegorzewski; M. Adabitabar Firozja; Tahereh Houlari (IPMU (2), 2014)

Recommender Systems and BOWA Operators. - Przemyslaw Grzegorzewski; Hanna Lacka (IEEE Conf. on Intelligent Systems (1), 2014)

Chi-Square Test for Homogeneity with Fuzzy Data. - Przemyslaw Grzegorzewski; Hubert Szymanowski (SMPS, 2014)

On Incomplete Label Ranking with IF-sets. - Pawel P. Ladyzynski; Przemyslaw Grzegorzewski (SMPS, 2014)

Natural trapezoidal approximations of fuzzy numbers. - Przemyslaw Grzegorzewski; Karolina Pasternak-Winiarska (Fuzzy Sets Syst., 2014)

Fuzzy Numbers and Their Applications. - Przemyslaw Grzegorzewski; Luciano Stefanini (Fuzzy Sets Syst., 2014)

Goodness-of-fit tests for fuzzy data. - Przemyslaw Grzegorzewski; Hubert Szymanowski (Inf. Sci., 2014)

Fuzzy implications based on semicopulas. - Michal Baczynski 001; Przemyslaw Grzegorzewski; Radko Mesiar (IFSA-EUSFLAT, 2015)

Similarity based one-sided tests for the expected value and interval data. - Przemyslaw Grzegorzewski; Ana Belén Ramos-Guajardo (IFSA-EUSFLAT, 2015)

Vague preferences in recommender systems. - Pawel Ladyzynski; Przemyslaw Grzegorzewski (Expert Syst. Appl., 2015)

On Functions Derived from Fuzzy Implications. - Przemyslaw Grzegorzewski (IPMU (1), 2016)

The Sign Test for Interval-Valued Data. - Przemyslaw Grzegorzewski; Martyna Spiewak (SMPS, 2016)

On Asymptotic Properties of the Multiple Fuzzy Least Squares Estimator. - Jin Hee Yoon; Seung-Hoe Choi; Przemyslaw Grzegorzewski (SMPS, 2016)

Measures of dispersion for multidimensional data. - Adam Kolacz; Przemyslaw Grzegorzewski (Eur. J. Oper. Res., 2016)

Properties of the probabilistic implications and S-implications. - Michal Baczynski 001; Przemyslaw Grzegorzewski; Piotr Helbin; Wanda Niemyska (Inf. Sci., 2016)

Distance-based linear discriminant analysis for interval-valued data. - Ana Belén Ramos-Guajardo; Przemyslaw Grzegorzewski (Inf. Sci., 2016)

Support Vector Machines in Fuzzy Regression. - Paulina Wieszczy; Przemyslaw Grzegorzewski (Challenging Problems and Solutions in Intelligent Systems, 2016)

The Mann-Whitney Test for Interval-Valued Data. - Przemyslaw Grzegorzewski; Martyna Spiewak (EUSFLAT/IWIFSGN (2), 2017)

The Kolmogorov goodness-of-fit test for interval-valued data. - Przemyslaw Grzegorzewski (FUZZ-IEEE, 2017)

Fuzzy implications based on semicopulas. - Michal Baczynski 001; Przemyslaw Grzegorzewski; Radko Mesiar; Piotr Helbin; Wanda Niemyska (Fuzzy Sets Syst., 2017)

On Separability of Fuzzy Relations. - Przemyslaw Grzegorzewski (Int. J. Fuzzy Log. Intell. Syst., 2017)

Two-Sample Dispersion Tests for Interval-Valued Data. - Przemyslaw Grzegorzewski (IPMU (3), 2018)

Measures of Dispersion for Interval Data. - Przemyslaw Grzegorzewski (SMPS, 2018)

Fuzzy Semi-Numbers and Their Elementary Arithmetic With a Medical Case Study. - S. Yeganehmanesh; Majid Amirfakhrian; Przemyslaw Grzegorzewski (Int. J. Comput. Intell. Syst., 2018)

A new distance on fuzzy semi-numbers. - Majid Amirfakhrian; S. Yeganehmanesh; Przemyslaw Grzegorzewski (Soft Comput., 2018)

Flexible bootstrap based on the canonical representation of fuzzy numbers. - Przemyslaw Grzegorzewski; Olgierd Hryniewicz; Maciej Romaniuk (EUSFLAT Conf., 2019)

The sign test and the signed-rank test for interval-valued data. - Przemyslaw Grzegorzewski; Martyna Spiewak (Int. J. Intell. Syst., 2019)

Some properties of fuzzy implications based on copulas. - Piotr Helbin; Michal Baczynski 001; Przemyslaw Grzegorzewski; Wanda Niemyska (Inf. Sci., 2019)

Piecewise linear approximation of fuzzy numbers: algorithms, arithmetic operations and stability of characteristics. - Lucian C. Coroianu; Marek Gagolewski; Przemyslaw Grzegorzewski (Soft Comput., 2019)

Permutation k-sample Goodness-of-Fit Test for Fuzzy Data. - Przemyslaw Grzegorzewski (FUZZ-IEEE, 2020)

Two-Sample Dispersion Problem for Fuzzy Data. - Przemyslaw Grzegorzewski (IPMU (3), 2020)

Flexible resampling for fuzzy data. - Przemyslaw Grzegorzewski; Olgierd Hryniewicz; Maciej Romaniuk (Int. J. Appl. Math. Comput. Sci., 2020)

Flexible Bootstrap for Fuzzy Data Based on the Canonical Representation. - Przemyslaw Grzegorzewski; Olgierd Hryniewicz; Maciej Romaniuk (Int. J. Comput. Intell. Syst., 2020)

In Search of a Precise Estimator Based on Imprecise Data. - Przemyslaw Grzegorzewski; Joanna Golawska (IFSA/EUSFLAT/AGOP, 2021)

Epistemic Bootstrap for Fuzzy Data. - Przemyslaw Grzegorzewski; Maciej Romaniuk (IFSA/EUSFLAT/AGOP, 2021)

Nearest Neighbor Tests for Fuzzy Data. - Przemyslaw Grzegorzewski; Oliwia Gadomska (FUZZ-IEEE, 2021)

Multi-Phase Fuzzy Modeling in the Innovative RTH Hydroforming Technology. - Hanna Sadlowska; Andrzej Kochanski; Przemyslaw Grzegorzewski (FUZZ-IEEE, 2021)

Inclusion and similarity measures for interval-valued fuzzy sets based on aggregation and uncertainty assessment. - Barbara Pekala; Krzysztof Dyczkowski; Przemyslaw Grzegorzewski; Urszula Bentkowska (Inf. Sci., 2021)

Two-sample test for comparing ambiguity in fuzzy data. - Przemyslaw Grzegorzewski (FUZZ-IEEE, 2022)

Testing Independence with Fuzzy Data. - Przemyslaw Grzegorzewski (IPMU (2), 2022)

Bootstrapped Kolmogorov-Smirnov Test for Epistemic Fuzzy Data. - Przemyslaw Grzegorzewski; Maciej Romaniuk (IPMU (2), 2022)

Time Series Classification using F-transform. - Przemyslaw Grzegorzewski; Antoni Kedzierski (OLUD@WCCI, 2022)

Bootstrap Methods for Epistemic Fuzzy Data. - Przemyslaw Grzegorzewski; Maciej Romaniuk (Int. J. Appl. Math. Comput. Sci., 2022)

A New Two-Sample Location Test for Fuzzy Data. - Przemyslaw Grzegorzewski; Milena Zacharczuk (EUSFLAT/AGOP, 2023)

A New Look at the Entropy of Interval-Valued Fuzzy Sets - Theory and Applications. - Przemyslaw Grzegorzewski; Barbara Pekala; Krzysztof Dyczkowski; Dawid Kosior (FUZZ, 2023)

Resampling Fuzzy Numbers with Statistical Applications: FuzzyResampling Package. - Maciej Romaniuk; Przemyslaw Grzegorzewski (R J., 2023)

Considerations on the Use of FDA Methods in Statistical Inference with Fuzzy Data. - Przemyslaw Grzegorzewski; Anna Kozak (IPMU (3), 2024)

Bootstrapped tests for epistemic fuzzy data. - Przemyslaw Grzegorzewski; Maciej Romaniuk (Int. J. Appl. Math. Comput. Sci., 2024)

Modeling Treatment Effect with Fuzzy Data. - Przemyslaw Grzegorzewski (EUSFLAT (2), 2025)

FLIRT-An Algorithm to Enhance a Regression Model with Federated Learning and GAN-Based Resampling. - Przemyslaw Grzegorzewski; Maciej Romaniuk (EUSFLAT (2), 2025)

Bayesianize fuzziness in the statistical analysis of fuzzy data. - Antonio Calcagnì; Przemyslaw Grzegorzewski; Maciej Romaniuk (Int. J. Approx. Reason., 2025)

FuzzySimRes: Epistemic Bootstrap - an Efficient Tool for Statistical Inference Based on Imprecise Data. - Maciej Romaniuk; Przemyslaw Grzegorzewski; Abbas Parchami (R J., 2025)

Simulation of Random LR Fuzzy Intervals. - Maciej Romaniuk; Abbas Parchami; Przemyslaw Grzegorzewski (CoRR, 2025)