Wojtek Kowalczyk

According to our database, Wojtek Kowalczyk authored at least 42 papers between 1996 and 2023.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2023

From Xception to NEXcepTion: New Design Decisions and Neural Architecture Search.

Hadar Shavit, Filip Jatelnicki, Pol Mor-Puigventós, Wojtek Kowalczyk

Proceedings of the 12th International Conference on Pattern Recognition Applications and Methods, 2023

2020

On the Performance of Oversampling Techniques for Class Imbalance Problems.

Jiawen Kong, Thiago Rios, Wojtek Kowalczyk, Stefan Menzel, Thomas Bäck

Dataset, May, 2020

Hyperparameter Optimisation for Improving Classification under Class Imbalance.

Jiawen Kong, Wojtek Kowalczyk, Duc Anh Nguyen, Stefan Menzel, Thomas Bäck

Dataset, February, 2020

Combining Deep Learning and Location-Based Ranking for Large-Scale Archaeological Prospection of LiDAR Data from The Netherlands.

Wouter B. Verschoof-van der Vaart, Karsten Lambers, Wojtek Kowalczyk, Quentin P. J. Bourgeois

ISPRS Int. J. Geo Inf., 2020

Cluster-based Kriging approximation algorithms for complexity reduction.

Bas van Stein, Hao Wang, Wojtek Kowalczyk, Michael Emmerich, Thomas Bäck

Appl. Intell., 2020

Improving Imbalanced Classification by Anomaly Detection.

Jiawen Kong, Wojtek Kowalczyk, Stefan Menzel, Thomas Bäck

Proceedings of the Parallel Problem Solving from Nature - PPSN XVI, 2020

On the Performance of Oversampling Techniques for Class Imbalance Problems.

Jiawen Kong, Thiago Rios, Wojtek Kowalczyk, Stefan Menzel, Thomas Bäck

Proceedings of the Advances in Knowledge Discovery and Data Mining, 2020

Being Creative: A Cross-Domain Mapping Network.

Jichen Wu, Maarten H. Lamers, Wojtek Kowalczyk

Proceedings of the Eleventh International Conference on Computational Creativity, 2020

2019

Hyperparameter Optimisation for Improving Classification under Class Imbalance.

Jiawen Kong, Wojtek Kowalczyk, Duc Anh Nguyen, Thomas Bäck, Stefan Menzel

Proceedings of the IEEE Symposium Series on Computational Intelligence, 2019

Extending an Anomaly Detection Benchmark with Auto-encoders, Isolation Forests, and RBMs.

Mark Pijnenburg, Wojtek Kowalczyk

Proceedings of the Information and Software Technologies - 25th International Conference, 2019

Are Similar Cases Treated Similarly? A Comparison Between Process Workers.

Mark Pijnenburg, Wojtek Kowalczyk

Proceedings of the Business Information Systems - 22nd International Conference, 2019

2018

A Novel Uncertainty Quantification Method for Efficient Global Optimization.

Bas van Stein, Hao Wang, Wojtek Kowalczyk, Thomas Bäck

Proceedings of the Information Processing and Management of Uncertainty in Knowledge-Based Systems. Applications, 2018

Singular Outliers: Finding Common Observations with an Uncommon Feature.

Mark Pijnenburg, Wojtek Kowalczyk

Proceedings of the Information Processing and Management of Uncertainty in Knowledge-Based Systems. Applications, 2018

2017

Beyond the hype: deep neural networks outperform established methods using a ChEMBL bioactivity benchmark set.

Eelke B. Lenselink, Niels ten Dijke, Brandon J. Bongers, George Papadatos, Herman W. T. van Vlijmen, Wojtek Kowalczyk, Adriaan P. IJzerman, Gerard J. P. van Westen

J. Cheminformatics, 2017

Extending Logistic Regression Models with Factorization Machines.

Mark Pijnenburg, Wojtek Kowalczyk

Proceedings of the Foundations of Intelligent Systems - 23rd International Symposium, 2017

2016

Analysis and Visualization of Missing Value Patterns.

Bas van Stein, Wojtek Kowalczyk, Thomas Bäck

Proceedings of the Information Processing and Management of Uncertainty in Knowledge-Based Systems, 2016

An Incremental Algorithm for Repairing Training Sets with Missing Values.

Bas van Stein, Wojtek Kowalczyk

Proceedings of the Information Processing and Management of Uncertainty in Knowledge-Based Systems, 2016

Fuzzy clustering for Optimally Weighted Cluster Kriging.

Bas van Stein, Hao Wang, Wojtek Kowalczyk, Michael T. M. Emmerich, Thomas Bäck

Proceedings of the 2016 IEEE International Conference on Fuzzy Systems, 2016

2015

Optimally Weighted Cluster Kriging for Big Data Regression.

Bas van Stein, Hao Wang, Wojtek Kowalczyk, Thomas Bäck, Michael Emmerich

Proceedings of the Advances in Intelligent Data Analysis XIV, 2015

2013

Detecting changing emotions in human speech by machine and humans.

C. Natalie van der Wal, Wojtek Kowalczyk

Appl. Intell., 2013

Discovering Local Subgroups, with an Application to Fraud Detection.

Rob M. Konijn, Wouter Duivesteijn, Wojtek Kowalczyk, Arno J. Knobbe

Proceedings of the Advances in Knowledge Discovery and Data Mining, 2013

Language-universal speech audiometry with automated scoring.

Bart Vaerenberg, Louis ten Bosch, Wojtek Kowalczyk, Martine Coene, Herwig De Smet, Paul J. Govaerts

Proceedings of the INTERSPEECH 2013, 2013

Balancing word lists in speech audiometry through large spoken language corpora.

Annemiek Hammer, Bart Vaerenberg, Wojtek Kowalczyk, Louis ten Bosch, Martine Coene, Paul J. Govaerts

Proceedings of the INTERSPEECH 2013, 2013

Quantifying cross-linguistic variation in grapheme-to-phoneme mapping.

Martine Coene, Annemiek Hammer, Wojtek Kowalczyk, Louis ten Bosch, Bart Vaerenberg, Paul Govaerts

Proceedings of the INTERSPEECH 2013, 2013

2012

Detecting Changing Emotions in Natural Speech.

Wojtek Kowalczyk, C. Natalie van der Wal

Proceedings of the Advanced Research in Applied Artificial Intelligence, 2012

Hunting for Fraudsters in Random Forests.

Rob M. Konijn, Wojtek Kowalczyk

Proceedings of the Hybrid Artificial Intelligent Systems - 7th International Conference, 2012

2011

Process evaluation of a web-based intervention aimed at empowerment of disability benefit claimants.

David Samoocha, Ingrid A. K. Snels, David J. Bruinvels, Johannes R. Anema, Wojtek Kowalczyk, Allard J. van der Beek

BMC Medical Informatics Decis. Mak., 2011

Diversity Measurement of Recommender Systems under Different User Choice Models.

Zoltán Szlávik, Wojtek Kowalczyk, Martijn C. Schut

Proceedings of the Fifth International Conference on Weblogs and Social Media, 2011

Finding Fraud in Health Insurance Data with Two-Layer Outlier Detection Approach.

Rob M. Konijn, Wojtek Kowalczyk

Proceedings of the Data Warehousing and Knowledge Discovery, 2011

The Impact of Recommender Systems on Item-, User-, and Rating-Diversity.

Wojtek Kowalczyk, Zoltán Szlávik, Martijn C. Schut

Proceedings of the Agents and Data Mining Interaction, 2011

2010

An Interactive Approach to Outlier Detection.

Rob M. Konijn, Wojtek Kowalczyk

Proceedings of the Rough Set and Knowledge Technology - 5th International Conference, 2010

2006

Maintaining Gaussian Mixture Models of Data Streams Under Block Evolution.

Jan Peter Patist, Wojtek Kowalczyk, Elena Marchiori

Proceedings of the Computational Science, 2006

Reinforcement Learning for Online Control of Evolutionary Algorithms.

A. E. Eiben, Mark Horvath, Wojtek Kowalczyk, Martijn C. Schut

Proceedings of the Engineering Self-Organising Systems, 4th International Workshop, 2006

2005

Modeling Navigation Patterns of Visitors of Unstructured Websites.

Krisztian Balog, Peter Hofgesang, Wojtek Kowalczyk

Proceedings of the Research and Development in Intelligent Systems XXII, 2005

Gossip-Based Greedy Gaussian Mixture Learning.

Nikos Vlassis, Yiannis Sfakianakis, Wojtek Kowalczyk

Proceedings of the Advances in Informatics, 2005

2004

An Approach to Massively Distributed Aggregate Computing on Peer-to-Peer Networks.

Márk Jelasity, Wojtek Kowalczyk, Maarten van Steen

Proceedings of the 12th Euromicro Workshop on Parallel, 2004

Newscast EM.

Wojtek Kowalczyk, Nikos Vlassis

Proceedings of the Advances in Neural Information Processing Systems 17 [Neural Information Processing Systems, 2004

2003

An Approximate Algorithm for Reverse Engineering of Multi-layer Perceptrons.

Wojtek Kowalczyk

Proceedings of the Research and Development in Intelligent Systems XX, 2003

1998

Approximate algorithms for generalized maximum utility problems.

Frederik Jan Jüngen, Wojtek Kowalczyk

J. Exp. Theor. Artif. Intell., 1998

Rough-Set Inspired Approach to Knowledge Discovery in Business Databases.

Wojtek Kowalczyk, Zdzislaw Piasta

Proceedings of the Research and Development in Knowledge Discovery and Data Mining, 1998

1996

An algorithm for training multilayer networks on non-numerical data.

Wojtek Kowalczyk

Proceedings of the 4th European Symposium on Artificial Neural Networks, 1996

Appriximate Algorithms for Maximum Utility Problems.

Frederik Jan Jüngen, Wojtek Kowalczyk

Proceedings of the Second International Conference on Principles and Practice of Constraint Programming, 1996