Team

clustering methods, information theory, entropy based classification
hierarchical classification, deep learning, learning theory
Research and Teaching assistant krzysztof.misztal@uj.edu.pl
image processing, biometrics methods
differential equations, numerical methods
software testing and quality, automata and formal languages, classification theory

.

compression theory, clustering methods
Research and Teaching assistant marek.smieja@uj.edu.pl
clustering methods, entropy theory
gramatics inference, image processing, computer vision
image processing, computational topology, medical applications

Phd students

Research and Teaching assistant
Phd student wojciech.czarnecki@uj.edu.pl
classification theory, active learning
bioinformatics, genome assembly, monte carlo methods
hierarchical classification
cheminformatics, machine learning

MSc students

deep learning, representation learning, natural language processing
classification methods

Regular collaborants

prof. Andrzej Bojarski
Institute of Pharmacology, Polish Academy of Sciences
dr Rafał Kurczab
Institute of Pharmacology, Polish Academy of Sciences
mgr Sabina Podlewska
Institute of Pharmacology, Polish Academy of Sciences
mgr Dawid Warszycki
Institute of Pharmacology, Polish Academy of Sciences
mgr Stefan Mordalski
Institute of Pharmacology, Polish Academy of Sciences
lic Rafał Józefowicz
Google, New York

Former MSc students

mgr Wojciech Jamrozy (2013)
working at Microsoft, Seattle
mgr Piotr Wałaszek (2013)
working at Microsoft, Seattle

Papers

2015

Andrzej Bojarski, Wojciech Czarnecki, Sabina Smusz, Dawid Warszycki, Exploiting uncertainty measures in compounds activity prediction using support vector machines , BIOORG MED CHEM LETT vol. 25 (2015), 100-105
Mariusz Korkosz, Marek Skomorowski, Karolina Sprężak, Wadim Wojciechowski, Bartosz Zieliński, Computer aided erosions and osteophytes detection based on hand radiographs , PATTERN RECOGN vol. 48 (2015), 2304-2317
Andrzej Bojarski, Wojciech Czarnecki, Sabina Podlewska, Robust optimization of SVM hyperparameters in the classification of bioactive compounds , J CHEMINFORMATICS vol. 7 (38) (2015), 15
Wojciech Czarnecki, Jacek Tabor, Multithreshold Entropy Linear Classifier: Theory and Applications , EXPERT SYST APPL vol. 42 (2015), 5591-5606
Marek Śmieja, Jacek Tabor, Entropy approximation in lossy source coding problem , ENTROPY-SWITZ vol. 17/5 (2015), 3400-3418
Wojciech Czarnecki, Weighted Tanimoto Extreme Learning Machine with Case Study in Drug Discovery , IEEE COMPUT INTELL M vol. 10 (3) (2015), 19-29
Wojciech Czarnecki, Jacek Tabor, Extreme entropy machines: robust information theoretic classification , PATTERN ANAL APPL (2015), 18
Wojciech Czarnecki, Rafał Józefowicz, Jacek Tabor, Maximum Entropy Linear Manifold for Learning Discriminative Low-dimensional Representation , LECTURE NOTES IN ARTIFICIAL INTELLIGENCE vol. 9284 (2015), 52-67
Marek Śmieja, Weighted approach to general entropy function , IMA J MATH CONTROL I vol. 32/2 (2015), 329-327
Wojciech Czarnecki, Adaptive Active Learning with Ensemble of Learners and Multiclass Problems , LECTURE NOTES IN COMPUTER SCIENCE vol. 9119 (2015), 415 - 426
Adam Roman, Testowanie i jakość oprogramowania. Modele, techniki, narzędzia , (2015), PWN
Adam Roman, Vojtech Vorel, Complexity of Road Coloring with Prescribed Reset Words , LECTURE NOTES IN COMPUTER SCIENCE vol. 8977 (2015), 161-172
Adam Roman, Vojtech Vorel, Parameterized Complexity of Synchronization and Road Coloring , DISCRETE MATH THEOR vol. 17(1) (2015), 307-330
Wojciech Czarnecki, Rafał Józefowicz, Fast optimization of Multithreshold Entropy Linear Classifier , Schedae Informaticae vol. 23 (2015), 57–67
Przemysław Spurek, Jacek Tabor, Mateusz Wójcik, Cross-Entropy Clustering Approach to One-Class Classification , LECTURE NOTES IN COMPUTER SCIENCE vol. 9119 (2015), 481-490
Mateusz Drewienkowski, Adam Roman, A complete solution to the complexity of Synchronizing Road Coloring for non-binary alphabets , INFORM COMPUT vol. 242 (2015), 383-393
Marek Śmieja, Magdalena Wiercioch, Mixture of metrics optimization for machine learning problems , Schedae Informaticae vol. 24 (2015), 133-142
Wojciech Czarnecki, Stanisław Jastrzębski, Analysis of compounds activity concept learned by SVM using robust Jaccard based low-dimensional embedding , Schedae Informaticae (2015)
Wojciech Czarnecki, On the Consistency of Multithreshold Entropy Linear Classifier , Schedae Informaticae (2015)

2014

Przemysław Spurek, Jacek Tabor, Cross Entropy Clustering , PATTERN RECOGN vol. 47 (2014), 3046–3059
Andrzej Bojarski, Marek Śmieja, Jacek Tabor, Dawid Warszycki, Asymmetric Clustering Index in a case study of 5-HT1A receptor ligands , PLOS ONE vol. 9(7) (2014), e102069
Wojciech Czarnecki, Jacek Tabor, Two ellipsoid Support Vector Machines , EXPERT SYST APPL vol. 41 (18) (2014), 8211-8224
Przemysław Spurek, Elżbieta Zając, Metody analizy mikroskopowych obrazów warstw C-Pd , (2014), "Świat nanotechnologii. Warstwy nanokompozytowe węglowo-palladowe. Badania i technologia", Wydawnictwa Uniwersytetu Warszawskiego
Krzysztof Misztal, Marek Śmieja, Przemysław Spurek, Subspaces Clustering Approach to Lossy Image Compression , LECTURE NOTES IN COMPUTER SCIENCE vol. 8838 (2014), 571-579
Łukasz Struski, Jacek Tabor, Expansivity and Cone-fields in Metric Spaces , J DYN DIFFER EQU vol. 26(3) (2014), 517-527
Wojciech Czarnecki, Krzysztof Szarzyński, Andrzej Wójtowicz, Designing a competition for autonomous robots with a restricted set of sensors with case study of LEGO NXT , Journal of Automation, Mobile Robotics & Intelligent Systems - JAMRIS (2014), 76-81
Wojciech Czarnecki, Igor Podolak, Adaptive Active Learning as a Multi-armed Bandit Problem , Frontiers in Artificial Intelligence and Applications vol. 263 (2014), 989-990
Agata Dróżdż, Marzena Frołow, Agata Kowalewska, Adam Roman, Bartosz Zieliński, A new approach to automatic continuous artery diameter measurement , Proceedings of the 2014 Federated Conference on Computer Science and Information Systems vol. 2 (2014), 247–251
Alena Chaikouskaya, Przemysław Spurek, Jacek Tabor, Elżbieta Zając, A local Gaussian filter and adaptive morphology as tools for completing partially discontinuous curves , Computer Information Systems and Industrial Management vol. 8838 (2014), 559-570
Marek Śmieja, Jacek Tabor, Renyi entropy dimension of the mixture of measures , Proceedings of Science and Information Conference (2014), 685-689

2013

Igor Podolak, Adam Roman, Theoretical foundations and practical results for a hierarchical classifier with overlapping clusters , COMPUT INTELL-US (2013), 357-388
Przemysław Spurek, Jacek Tabor, The memory center , INFORM SCIENCES vol. 252 (2013), 132–143
Kamil Bartocha, William Beckler, Krzysztof Osiewalski, Adam Roman, lastminute.com’s 12-week geo-experiment reveals a 43% uplift in Google AdWords values , Google AdWords Blog, adwords.blogspot.com (2013), 3
Krzysztof Misztal, Jacek Tabor, Mahalanobis distance-based algorithm for ellipse growing in iris preprocessing , Computer Information Systems and Industrial Management Lecture Notes in Computer Science vol. 8104 (2013), 158-167
Józef Tabor, Jacek Tabor, Marek Żołdak, Strongly Midquasiconvex Functions , J CONVEX ANAL vol. 20 (2013), 531-543
Krzysztof Misztal, Jacek Tabor, Józef Tabor, Strict verification of approximate midconvexity on non-convex sets , MATH INEQUAL APPL vol. 16 (2013), 389–400
Krzysztof Misztal, Przemysław Spurek, Jacek Tabor, Weighted Approach to Projective Clustering , Computer Information Systems and Industrial Management Lecture Notes in Computer Science vol. 8104 (2013), 367-378
Marek Śmieja, Jacek Tabor, Image segmentation with use of cross-entropy clustering , Advances in Intelligent Systems and Computing vol. 226 (2013), 403-409
Krzysztof Misztal, Józef Tabor, Jacek Tabor, Generalized midconvexity , BANACH CENTER PUBLICATIONS vol. 99 (2013), 207-215
Krzysztof Misztal, Jacek Tabor, Józef Tabor, Midconvexity for finite sets , J INEQUAL APPL vol. 2013 (2013), 1-16
Przemysław Spurek, Jacek Tabor, Elżbieta Zając, Detection of Disk-Like Particles in Electron Microscopy Images , Advances in Intelligent Systems and Computing vol. 226 (2013), 411-417
Wojciech Czarnecki, Igor Podolak, Machine Learning with Known Input Data Uncertainty Measure , LECTURE NOTES IN COMPUTER SCIENCE (2013), 379-388
Krzysztof Misztal, Jacek Tabor, Detection of elliptical shapes via cross-entropy clustering , Pattern Recognition and Image Analysis Lecture Notes in Computer Science vol. 7887 (2013), 656-663

2012

Marek Śmieja, Jacek Tabor, Entropy of the mixture of source and entropy dimension , IEEE T INFORM THEORY vol. 58(5) (2012), 2719-2728
Andrzej Gryglewski, Andrzej Krajniak, Marian Mrozek, Han Sejin, Marcin Żelawski, Homological methods for extraction and analysis of linear features in multidimensional images , PATTERN RECOGN vol. 45, Issue 1 (2012), 285-298
Rafał Kudłacik, Adam Roman, Hubert Wagner, Effective synchronizing algorithms , EXPERT SYST APPL vol. 39 (2012), 11746-11757
Adam Roman, P--NP threshold for the Synchronizing Road Coloring , LECTURE NOTES IN COMPUTER SCIENCE vol. 7183 (2012), 482-492
Dariusz Jędrzejczyk, Igor Podolak, Adam Roman, Application of Hierarchical Classifier to Minimal Synchronizing Word problem , LECTURE NOTES IN COMPUTER SCIENCE vol. 7267 (2012), 421-429
Adam Roman, O 'Epistemologii' Jana Woleńskiego - spojrzenie matematyka , Diametros - An Online Journal of Philosophy (2012), 175-188
Przemysław Spurek, Jacek Tabor, Numerical verification of condition for approximately midconvex functions , AEQUATIONES MATH vol. 83 (2012), 223-237
Tomasz Kulaga, Łukasz Struski, Jacek Tabor, Cone-Fields without Constant Orbit Core Dimension , DISCRETE CONT DYN-A vol. 32(10) (2012), 3651-3664
Jakub Bielawski, Jacek Tabor, A t-norm embedding theorem for fuzzy sets , FUZZY SET SYST (2012), 33-53
Anna Mureńko, Józef Tabor, Jacek Tabor, Applications of de Rham theorem in approximate midconvexity , J DIFFER EQU APPL vol. 18 (2012), 335-344
Piotr Kościelniak, Marcin Mazur, Jacek Tabor, Appendix A: Semi-Hyperbolicity: Estimations , vol. Random and Computational Dynamics 1 (2012), "Phil Diamond, Peter Kloeden, Victor Kozyakin, Alexei Pokrovskii, Semi-Hyperbolicity and Bi-Shadowing", American Institute of Mathematical Sciences
Wojciech Czarnecki, Multilayer Neural Networks with Receptive Fields as a Model for the Neuron Reconstruction Problem , LECTURE NOTES IN COMPUTER SCIENCE (2012), 242-250
Józef Tabor, Jacek Tabor, Paraconvex, but not strongly, Takagi functions , CONTROL CYBERN vol. 41 (2012), 545-559
Krzysztof Misztal, Emil Saeed, Khalid Saeed, Jacek Tabor, Iris Pattern Recognition with a New Mathematical Model to its Rotation Detection , vol. 1 (2012), "Biometrics and Kansei Engineering", Springer Verlag (połaczony z Kluwer Academic Publishing)
Krzysztof Misztal, Khalid Saeed, Jacek Tabor, A new algorithm for rotation detection in iris pattern recognition , Lecture Notes in Computer Science vol. Computer Information Systems and Industrial Management, Volume 7564/2012 (2012), 135-145
Krzysztof Misztal, Jacek Tabor, Józef Tabor, Approximately Midconvex Functions , vol. Springer Optimization and Its Applications (2012), "Functional Equations in Mathematical Analysis", Springer Verlag (połaczony z Kluwer Academic Publishing)
Wadim Wojciechowski, Bartosz Zieliński, Computer-based hand radiographs analysis for erosions and osteophytes detection , European Congress of Radiology Proceedings (2012), 13

2011

Igor Podolak, Adam Roman, Risk function estimation for subproblems in a hierarchical classifier , PATTERN RECOGN LETT vol. 32(15) (2011), 2136-2142
Stanisław Brodowski, Igor Podolak, Hierarchical Estimator , EXPERT SYST APPL vol. 38 (2011), 12237–12248
Igor Podolak, Adam Roman, Fusion of supervised and unsupervised training methods for a multi-class classification problem , PATTERN ANAL APPL vol. 14(4) (2011), 395-413
Agnieszka Deszyńska, Igor Podolak, Adam Roman, On the number of clusterings in a hierarchical classification model with overlapping clusters , SCHEDAE INFORMATICAE vol. 20 (2011), 137-157
Krzysztof Chmiel, Adam Roman, COMPAS - a computing package for synchronization , LECTURE NOTES IN COMPUTER SCIENCE vol. 6482 (2011), 79-86
Maria Foryś, Adam Roman, Zbiór zadań z teorii języków formalnych i automatów , (2011), Wydawnictwo Uniwersytetu Jagiellońskiego
Marzena Bielecka, Andrzej Bielecki, Mariusz Korkosz, Marek Skomorowski, Karolina Sprężak, Wadim Wojciechowski, Bartosz Zieliński, A shape description language for osteophytes detection in upper surfaces of the metacarpophalangeal joints , Computer recognition systems 4, Advances in intelligent and soft computing, Springer (2011), 479-487
Adam Roman, NP-completeness of the Road Coloring Problem , INFORM PROCESS LETT vol. 111 (2011), 342-347
Mateusz Banach, Giuseppe Evangelista , Łukasz Flis, Marek Kochańczyk, Maciej Malawski, Ewa Matczyńska, Giovanni Minevrini, Fabio Polticelli, Katarzyna Prymula , Kinga Sałapa, Szepieniec Tomasz , Zdzisław Wiśniowski, Ab initio protein structure prediction – the hydrophobicity distribution analysis , Bio-Algorithms and Med-Systems vol. 14 (2011), 5-12
Tomasz Baron, Marcin Cwynar, Tomasz Grodzicki, Barbara Gryglewska, Marian Mrozek, Mirosław Nęcki, Marcin Żelawski, Fractal dimensions of skin microcirculation flow in subjects with familial predisposition or newly diagnosed hypertension , CARDIOLOGY JOURNAL, FORMERLY FOLIA CARDIOLOGICA vol. 18, No. 1 (2011), 26-32
Marzena Bielecka, Andrzej Bielecki, Mariusz Korkosz, Marek Skomorowski, Wadim Wojciechowski, Bartosz Zieliński, Modified Jakubowski shape transducer for detecting osteophytes and erosions in finger joints , LECTURE NOTES IN COMPUTER SCIENCE vol. 6594 (2011), 147-155
Anna Mureńko, Józef Tabor, Jacek Tabor, Semiconcave functions with power moduli , J CONVEX ANAL vol. 18 (2011), 391-396
Tomasz Kułaga, Jacek Tabor, Hyperbolic dynamics in graph-directed IFS , J DIFFER EQUATIONS vol. 251 (2011), 3363-3380
Marcin Mazur, Jacek Tabor, Computational hyperbolicity , DISCRETE CONT DYN-A vol. 29 (2011), 1175-1189
Igor Podolak, Adam Roman, Risk estimation for hierarchical classifier , LECTURE NOTES IN ARTIFICIAL INTELLIGENCE vol. 6678 (2011), 156-163
Józef Tabor, Jacek Tabor, Marek Żołdak, On w-strongly quasiconvex and w-strongly quasiconcave sequences , AEQUATIONES MATH vol. 82 (2011), 255-268

2010

Andrzej Bielecki, Mariusz Korkosz, Wadim Wojciechowski, Bartosz Zieliński, Identifying the borders of the upper and lower metacarpophalangeal joints surfaces on hand radiographs , LECTURE NOTES IN ARTIFICIAL INTELLIGENCE vol. 6113 (2010), 589-596
Marzena Bielecka, Andrzej Bielecki, Mariusz Korkosz, Marek Skomorowski, Wadim Wojciechowski, Bartosz Zieliński, Application of shape description methodology to hand radiographs interpretation , LECTURE NOTES IN COMPUTER SCIENCE vol. 6374 (2010), 11-18
Leszek Nowak, Bartosz Zieliński, Global extremes analysis in applications of discrete tomography , Bio-Algorithms and Med-Systems vol. 6 (2010), 21-24
Józef Tabor, Jacek Tabor, Marek Żołdak, Optimality estimations for approximately convex functions , AEQUATIONES MATH vol. 80 (2010), 227-237
Adam Najdecki, Józef Tabor, Jacek Tabor, On conditionally d-convex functions , ACTA MATH HUNG vol. 128 (2010), 131-138
Józef Tabor, Jacek Tabor, Marek Żołdak, Approximately convex functions on topological vector spaces , PUBL MATH-DEBRECEN vol. 365 (2010), 115-123
Tomasz Grodzicki, Barbara Gryglewska, Mirosław Nęcki, Marcin Żelawski, Entropy of skin microcirculation flow in subjects with familial predisposition or newly diagnosed hypertension , Cardiovascular Research vol. 87 (2010), S54-S54
Józef Tabor, Jacek Tabor, Extensions of convex and semiconvex functions and intervally thin sets , J MATH ANAL APPL vol. 365 (2010), 43-49
Adam Roman, Experiments on synchronizing automata , SCHEDAE INFORMATICAE vol. 19 (2010), 35-51

2009

Marcin Żelawski, Detecting Pathologies with Homology Algorithms in Magnetic Resonance Images of Brain , MACHINE GRAPHICS & VISION: INTERNATIONAL JOURNAL vol. 18, No. 3 (2009), 253-266
Bartosz Zieliński, Hand radiograph analysis and joint space location improvement for image interpretation , SCHEDAE INFORMATICAE vol. 17/18 (2009), 45-61
Andrzej Gryglewski, Andrzej Krajniak, Marian Mrozek, Han Sejin, Marcin Żelawski, Homological Methods in Feature Extraction of Multidimensional Images , Proceedings of the 2009 2nd International Congress on Image and Signal Processing, IEEE (2009), 1061-1066
Józef Tabor, Jacek Tabor, Takagi functions and approximate midconvexity , J MATH ANAL APPL vol. 356 (2009), 729-737
Jakub Bielawski, Jacek Tabor, An embedding theorem for unbounded convex sets in a Banach space , Demonstratio Mathematica vol. 42(4) (2009), 703-709
Adam Roman, Decision Version of the Road Coloring Problem is NP-complete , LECTURE NOTES IN COMPUTER SCIENCE vol. 5699 (2009), 287-297
Józef Tabor, Jacek Tabor, Generalized approximate midconvexity , CONTROL CYBERN vol. 38 (2009), 655-669
Józef Tabor, Jacek Tabor, Characterization of convex functions , STUD MATH vol. 192 (2009), 29-37
Jacek Mrowiec, Józef Tabor, Jacek Tabor, Approximately midconvex functions , vol. International Series of Numerical Mathematics 157 (2009), "Inequalities and Applications", Birkhäuser
Anna Mureńko, Józef Tabor, Jacek Tabor, On characterizations of sup-preserving functionals , ACTA MATH HUNG vol. 12 (2009), 161-172
Adam Roman, Synchronizing Finite Automaton with Short Reset Words , APPL MATH COMPUT vol. 209 (2009), 125-136
Adam Roman, Genetic Algorithm for Synchronization , LECTURE NOTES IN COMPUTER SCIENCE vol. 5457 (2009), 684-695
Damian Kość, Adrian Kośmider, Ewa Matczyńska, Monika Piwowar, Filip Pomarański, Michał Swatowski, Szepieniec Tomasz , Piotr Więcek, VoGE – java application for presentation of Never Born Proteins gene structure elements , Bio-Algorithms and Med-Systems vol. 5 (2009), 9-14
Łukasz Flis, Marek Kochańczyk, Maciej Malawski, Ewa Matczyńska, Giovanni Minevrini, Monika Piwowar, Fabio Polticelli, Katarzyna Prymula , Irena Roterman, Kinga Sałapa, Tomasz Szepieniec, Zdzisław Wiśniowski, In silico structural study of random amino acid sequence proteins not present in nature. , CHEM BIODIVERS vol. 6 (2009), 2311–2336
Marzena Bielecka, Marek Skomorowski, Bartosz Zieliński, A fuzzy shape descriptor and inference by fuzzy relaxation with application to description of bones contours at hand radiographs , LECTURE NOTES IN COMPUTER SCIENCE vol. 5495 (2009), 469-478
Igor Podolak, Adam Roman, A new notion of weakness in classification theory , vol. 57 (2009), "Advances in Intelligent and Soft Computing", Springer Verlag (połaczony z Kluwer Academic Publishing)
Kamil Bartocha, Igor Podolak, Hierarchical Classifier with Growing Neural Gas clustering , LECTURE NOTES IN COMPUTER SCIENCE vol. 5495 (2009), 283-292

2008

Andrzej Bielecki, Mariusz Korkosz, Bartosz Zieliński, Hand radiographs preprocessing, image representation in the finger regions and joint space width measurements for image interpretation , PATTERN RECOGN vol. 41 (2008), 3786-3798
Igor Podolak, Hierarchical classifier with overlapping class groups , EXPERT SYST APPL vol. 1 (2008), 673-682
Wit Foryś, Adam Roman, Lower bound for the length of synchronizing words in partially-synchronizing automata , LECTURE NOTES IN COMPUTER SCIENCE vol. 4910 (2008), 448 - 459
Józef Tabor, Jacek Tabor, Stability of the Cauchy functional equations in metric groupoids , AEQUATIONES MATH vol. 76 (2008), 92-104
Piotr Kościelniak, Marcin Mazur, Jacek Tabor, Semi-hyperbolicity and hyperbolicity , DISCRETE CONT DYN-A (2008), 1029-1038
Jacek Tabor, Restricted stability and shadowing , PUBL MATH-DEBRECEN vol. 73 (2008), 49-58
Jacek Tabor, Stability of isometries in p-Banach spaces , Functiones et Approximatio, Commentarii Mathematici vol. 38 (2008), 109-119
Bartosz Bierkowski, Piotr Kalita, Igor Podolak, Adam Roman, Algorithm for intelligent prediction of requests in business systems , LECTURE NOTES IN COMPUTER SCIENCE vol. 4910 (2008), 696-707
Bartosz Zieliński, Segmentacja i selekcja cech jako jeden z podstawowych problemów w rozpoznawaniu obrazów medycznych , Krakowski Rocznik Kognitywistyczny vol. 2 (2008), 93-104

2007

Bartosz Zieliński, A fully-automated algorithm dedicated to computing metacarpophalangeal and interphalangeal joint cavity widths , Schedae Informaticae vol. 16 (2007), 47-67

2005

Marcin Żelawski, Pattern Recognition Based on Homology Theory , MACHINE GRAPHICS & VISION: INTERNATIONAL JOURNAL vol. 14, No. 3 (2005), 309-324

2002

Marcin Kulczycki, Jacek Tabor, Iterative functional equations in the class of Lipschitz functions , AEQUATIONES MATH vol. 64, no. 1-2 (2002), 24-33

1998

Marcin Mazur, Kinga Stolot, Jacek Tabor, Semi-hyperbolicity implies hyperbolicity in the linear case , Universitatis Iagellonicae Acta Mathematica vol. 36 (1998), 121-126

Contact Us

Igor Podolak, PhD
Group of Machine Learning Research
Faculty of Mathematics and Computer Science
ul. Lojasiewicza 6
30-342, Cracow, Poland