Universiteit Leiden

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Walter Kosters

Universitair hoofddocent

Naam
Dr. W.A. Kosters
Telefoon
+31 71 527 7059
E-mail
w.a.kosters@liacs.leidenuniv.nl

I am an associate professor in computer science at LIACS, the Computer Science department of Universiteit Leiden. Current research interests include: neural networks, genetic algorithms, analysis of algorithms, concrete mathematics, NP-completeness, bioinformatics — so, data mining and artificial intelligence. 

Meer informatie over Walter Kosters

From 1976 until 1981 I studied Mathematics at Universiteit Leiden; during this period I also attended courses in Physics and Astronomy. My PhD Thesis in the field of mathematics (1985, supervised by Professor Gerrit van Dijk from Universiteit Leiden) is entitled "Harmonic analysis on symmetric spaces"; some keywords: Lie groups, Plancherel formulas, Fourier analysis, spherical distributions, special functions.  Later on I became interested in computer science, in particular analysis of algorithms and artificial intelligence.

Universitair hoofddocent

  • Wiskunde en Natuurwetenschappen
  • Leiden Inst Advanced Computer Sciences

Werkadres

Snellius
Niels Bohrweg 1
2333 CA Leiden
Kamernummer 159

Contact

  • Batenburg K.J, Helwerda L.S., Kosters W.A. & Meij T. van der (2016), Agents for mobile radio tomography. In: Proceedings BNAIC 2016.. 17-24.'refereed' congresbijdrage
  • Herik H.J. van den, Kosters W.A., Plaat A. & (2016), Recent Advances in Computer Games, special issue of Theoretical Computer Science Redactielid Theoretical Computer Science 644.tijdschriftredactie
  • Bergh M.J.H. van den, Kosters W.A. & Spieksma F.M. (2016), Aspects of the cooperative card game Hanabi. In: Proceedings BNAIC 2016.. 25-32.'refereed' congresbijdrage
  • Plaat A., Kosters W.A. & Herik H.J. van den (red.) (2016), Computers and Games Lecture Notes in Computer Science nr. 10068. Heidelberg: Springer.boekredactie
  • Plaat A., Herik H.J. van den & Kosters W.A. (red.) (2015), Proceedings of the 14th Advances in Computer Games Conference ACG2015 nr. 9525: Springer.boekredactie
  • Plaat A., Herik H.J. van den Herik & Kosters W.A. (red.) (2015), Advances in Computer Games nr. LNCS 9525: Springer.boekredactie
  • Borassi M., Crescenzi P., Habib M., Kosters W.A., Marino A. & Takes F.W. (2015), Fast Graph Diameter and Radius BFS-Based Computation in (Weakly Connected) Real-World Graphs, 586: 59-80.'refereed' artikel in een tijdschrift
  • Dal G.H., Kosters W.A. & Takes F.W. (2014), Fast Diameter Computation of Large Sparse Graphs using GPUs. In: Proceedings 22nd IEEE International Conference on Parallel, Distributed and network-based Processing (PDP 2014).: IEEE. 632-639.'refereed' congresbijdrage
  • Hoogeboom H.J., Kosters W.A., Rijn J.N. van & Vis J.K. (2014), Acyclic Constraint Logic and Games, ICGA Journal 37(1): 3-16.'refereed' artikel in een tijdschrift
  • Takes F.W. & Kosters W.A. (2014), Adaptive Landmark Selection Strategies for Fast Shortest Path Computation in Large Real-World Graphs. In: Proceedings 13th IEEE/ACM International Conference on Web Intelligence (WI 2014).: IEEE. 632-639.'refereed' congresbijdrage
  • Borassi M., Cresenzi P., Habib M., Dal G.H., Kosters W.A., Marino A. & Takes F.W. (2014), On the Solvability of the Six Degrees of Kevin Bacon Game - A Faster Graph Diameter and Radius Computation Method. In: Lecture Notes in Computer Science. nr. 8496: Springer. 52-63.'refereed' congresbijdrage
  • Schraagen M.P. & Kosters W.A. (2014), Record Linkage using Graph Consistency. In: Proceedings Machine Learning and Data Mining in Pattern Recognition (MLDM 2014). nr. LNAI 8556. 471-483.'refereed' congresbijdrage
  • F.W. Takes and W.A. Kosters (2013), Mining User-Generated Path Traversal Patterns in an Information Network. In: Proceedings of the 12th IEEE/WIC/ACM International Conference on Web Intelligence.. 284-289.'refereed' congresbijdrage
  • Takes F.W. & Kosters W.A. (2013), Computing the Eccentricity Distribution of Large Graphs, Algorithms 6(1): 100-118.'refereed' artikel in een tijdschrift
  • Terroba A., Kosters W.A., Varona J. & Manresa-Yee C.S. (2013), Finding Optimal Strategies in Tennis from Video Sequences, International Journal of Pattern Recognition and Artificial Intelligence 27(6).'refereed' artikel in een tijdschrift
  • Batenburg K.J. & Kosters W.A. (2012), Nonograms, Nieuwsbrief van de Nederlandse Vereniging voor Theoretische Informatica 16: 49-62.artikel in een tijdschrift
  • Luiten M., Kosters W.A. & Takes F.W. (2012), Topical Influence on Twitter: A Feature Construction Approach. In: Proceedings of 24th Benelux Conference on Artificial Intelligence (BNAIC'12).. 139-146.'refereed' congresbijdrage
  • Chatham R.D., Doyle M., Jeffers R.J., Kosters W.A., Skaggs R.D. & Ward J.A. (2012), Centrosymmetric Solutions to Chessboard Separation Problems, Bulletin of the Institute of Combinatorics and its Applications 65.'refereed' artikel in een tijdschrift
  • Takes F.W. & Kosters W.A. (2012), The Difficulty of Path Traversal in Information Networks. In: Proceedings of 4th International Conference on Knowledge Discovery and Information Retrieval (KDIR '12).. 138-144.'refereed' congresbijdrage
  • Batenburg K.J. & Kosters W.A. (2012), On the Difficulty of Nonograms, ICGA Journal 35: 195-205.'refereed' artikel in een tijdschrift
  • Schraagen M.P. & Kosters W.A. (2012), Data-driven Name Reduction for Record Linkage. In: Second International Conference on Innovative Computing Technology (INTECH 2012)..'refereed' congresbijdrage
  • Takes F.W. & Kosters W.A. (2011), Identifying Prominent Actors in Online Social Networks using Biased Random Walks. In: Proceedings of 23rd Benelux Conference on Artificial Intelligence (BNAIC 2011).. 215-222.'refereed' congresbijdrage
  • Vis J.K., Kosters W.A. & Batenburg K.J. (2011), Discrete Tomography: A Neural Network Approach. In: Proceedings of 23rd Benelux Conference on Artificial Intelligence (BNAIC 2011).. 328-335.'refereed' congresbijdrage
  • Kentsch A., Kosters W.A., Putten P.W.H. van der & Takes F.W. (2011), Exploratory Recommendations using Wikipedia's Linking Structure. In: Proceedings of 20th Belgian Netherlands Conference on Machine Learning (Benelearn).. 61-68.'refereed' congresbijdrage
  • Takes F.W. & Kosters W.A. (2011), Determining the Diameter of Small World Networks. In: Proceedings of 20th ACM Conference on Information and Knowledge Management (CIKM 2011).. 1191-1196.'refereed' congresbijdrage
  • Takes F.W. & Kosters W.A. (2010), Applying Monte Carlo Techniques to the Capacitated Vehicle Routing Problem. In: Proceedings 22nd Benelux Conference on Artificial Intelligence (BNAIC 2010)..'refereed' congresbijdrage
  • Vis J.K., Kosters W.A. & Terroba A. (2010), Tennis Patterns: Player, Match and Beyond. In: 22nd Benelux Conference on Artificial Intelligence (BNAIC 2010)..'refereed' congresbijdrage
  • Pijls W. & Kosters W.A. (2010), Mining Frequent Itemsets: A Perspective from Operations Research, Statistica Neerlandica 64: 367-387.'refereed' artikel in een tijdschrift
  • Terroba A., Kosters W.A. & Vis J.K. (2010), Tactical Analysis Modeling through Data Mining: Pattern Discovery in Racket Sports. In: International Conference on Knowledge Discovery and Information Retrieval (KDIR 2010)..'refereed' congresbijdrage
  • Batenburg K.J. & Kosters W.A. (2009), Solving Nonograms by Combining Relaxations, Pattern Recognition 42: 1672-1683.'refereed' artikel in een tijdschrift
  • Batenburg K.J., Henstra S., Kosters W.A. & Palenstijn W.J. (2009), Constructing Simple Nonograms of Varying Difficulty, Pure Mathematics and Applications (Pu.M.A.) 20: 1-15.'refereed' artikel in een tijdschrift
  • Takes F.W. & Kosters W.A. (2009), Solving SameGame and its Chessboard Variant. In: Proceedings 21st Benelux Conference on Artificial Intelligence (BNAIC 2009).. 249-256.'refereed' congresbijdrage
  • Broekens D.J., Kosters W.A. & de Vries T. (2009), Eye Movements Disclose Decisions in Set. In: Proceedings 21th Benelux Conference on Artificial Intelligence (BNAIC 2009).. 43-50.'refereed' congresbijdrage
  • Graaf E.H. de & Kosters W.A. (2008), Visualizing Co-occurrence of Self-Optimizing Fragment Groups. In: A. Nijholt, M. Pantic, M. Poel and H. Hondorp (red.) 20th Belgium-Netherlands Conference on Artificial Intelligence.. 81-88.'refereed' congresbijdrage
  • Graaf E.H. de, Kok J.N. & Kosters W.A. (2008), Mining Balanced Patterns in Web Access Data. In: A. Gammerman (red.) IASTED International Conference on Artificial Intelligence and Applications.. 595-147.'refereed' congresbijdrage
  • Cocx T.K., Kosters W.A. & Laros J.F.J. (2008), Temporal Extrapolation within a Static Clustering. In: Foundations of Intelligent Systems.: Springer Berlin / Heidelberg. 189-195.boekdeel
  • Batenburg K.J. & Kosters W.A. (2008), A Reasoning Framework for Solving Nonograms. In: Combinatorial Image Analysis. Berlin/Heidelberg: Springer. 372-383.boekdeel
  • Broekens D.J., DeGroot D. & Kosters W.A. (2008), Formal models of appraisal: Theory, specification, and computational model, Cognitive Systems Research 9: 173-197.'refereed' artikel in een tijdschrift
  • Hoogeboom H.J., Kosters W.A. & Laros J.F.J. (2008), Selection of DNA Markers, IEEE Transactions on Systems, Man, and Cybernetics 38(1): 26-32.'refereed' artikel in een tijdschrift
  • Cocx T.K., Kosters W.A. & Laros J.F.J. (2008), An Early Warning System for the Prediction of Criminal Careers. In: MICAI 2008: Advances in Artificial Intelligence. Berlin / Heidelberg: Springer. 77-89.boekdeel
  • Batenburg K.J. & Kosters W.A. (2008), Automatic Generation of Japanese Puzzles. In: A. Nijholt, M. Pantic, M. Poel and H. Hondorp (red.) 20th Belgium-Netherlands Conference on Artificial Intelligence.. 387-388.'refereed' congresbijdrage
  • Umanski D., Kosters W.A., Verbeek F.J. & Schiller N.O. (2008), Integrating computer games in speech therapy for children who stutter. In: Proc. 1st Workshop Child, Computer and Interaction..'refereed' congresbijdrage
  • Laros J.F.J. & Kosters W.A. (2007), Metrics for Mining Multisets. In: Bramer, M., Coenen, F., Petridis, M. (red.) Research and Development in Intelligent Systems XXIV, Proceedings of AI-2007, the Twenty-seventh SGAI International Conference on Innovative Techniques and Applications of Artificial Intelligence.: Springer. 293-303.'refereed' congresbijdrage
  • Graaf E.H. de, Kok J.N. & Kosters W.A. (2007), Displaying Co-occurrences of Patterns in Streams for Website Usage Analysis. In: Dastani, M.M., Jong, E. de (red.) 19th Belgium-Netherlands Conference on Artificial Intelligence (BNAIC 2007).. 143-150.'refereed' congresbijdrage
  • Broekens D.J., Kosters W.A. & Verbeek F.J. (2007), On Affect, Anticipation and Adaptation: Investigating the Potential of Affect-Controlled Selection of Anticipatory Simulation in Artificial Adaptive Agents, Adaptive Behavior 15: 397-422.'refereed' artikel in een tijdschrift
  • Laros J.F.J. & Kosters W.A. (2007), Visualization on a Closed Surface. In: Dastani, M.M., Jong, E. de (red.) 19th Belgium-Netherlands Conference on Artificial Intelligence (BNAIC 2007).. 189-195.'refereed' congresbijdrage
  • Graaf E.H. de, Kazius J., Kok J.N. & Kosters W.A. (2007), Visualization and Grouping of Graph Patterns in Molecular Databases. In: Bramer, M., Coenen, F., Petridis, M. (red.) Research and Development in Intelligent Systems XXIV.: Springer. 267-280.'refereed' congresbijdrage
  • Cocx T.K. & Kosters W.A. (2007), Adapting and Visualizing Association Rule Mining Systems for Law Enforcement Purposes. In: M.M. Dastani and E. de Jong (red.) 19th Belgium-Netherlands Conference on Artificial Intelligence (BNAIC 2007).. 88-95.'refereed' congresbijdrage
  • Graaf E.H. de, Kok J.N. & Kosters W.A. (2007), Clustering Improves the Exploration of Graph Mining Results. In: Boukis, C., Pnevmatikakis, A., Polymenakos, L. (red.) Artificial Intelligence and Innovations 2007: from Theory to Applications, Proceedings of the 4th IFIP International Conference on Artificial Intelligence, Applications and Innovations (AIAI07).: Springer. 13-20.'refereed' congresbijdrage
  • Ye K., Kosters W.A. & IJzerman A.P. (2007), An efficient, versatile and scalable pattern growth approach to mine frequent patterns in unaligned protein sequences, BIOINFORMATICS 23(6): 687-693.'refereed' artikel in een tijdschrift
  • Broekens D.J., Kosters W.A. & Verbeek F.J. (2007), On Affect and Self-Adaptation: Potential Benefits of Valence-Controlled Action-Selection. In: 2nd. International Work-Conference on the Interplay between Natural and Artificial Computation (IWINAC).: Springer. 357-366.'refereed' congresbijdrage
  • Broekens D.J., Kosters W.A. & Verbeek F.J. (2007), Affect, Anticipation, and Adaptation: Affect-Controlled Selection of Anticipatory Simulation in Artificial Adaptive Agents, Adaptive Behavior 15(4): 397-422.'refereed' artikel in een tijdschrift
  • Ye K., Kosters W.A. & IJzerman A.P. (2007), Versatile and Scalable Pattern Growth Approach to Mine Frequent Patterns in Unaligned Protein Sequences, BIOINFORMATICS 23: 687-693.'refereed' artikel in een tijdschrift
  • Bruin J.S. de, Cocx T.K., Kosters W.A., Laros J.F.J.. & Kok J.N. (2006), Data Mining Approaches to Criminal Career Analysis. In: C.W. Clifton, N. Zhong, J. Liu, B.W. Wah and X. Wu (red.) Sixth IEEE International Conference on Data Mining.. 171-177.'refereed' congresbijdrage
  • Broekens D.J., Cocx T.K. & Kosters W.A. (2006), Object-Centered Interactive Multi-Dimensional Scaling: Ask the Expert. In: P.-Y. Schobbens, W. Vanhoof and G. Schwanen (red.) BNAIC 2006..'refereed' congresbijdrage
  • Graaf E.H. de & Kosters W.A. (2006), Mining for Stable Patterns: Regular Intervals between Occurrences. In: P.-Y. Schobbens, W. Vanhoof and G. Schwanen (red.) BNAIC 2006.. 149-155.'refereed' congresbijdrage
  • Bruin J.S. de, Cocx T.K., Kosters W.A., Laros J.F.J. & Kok J.N. (2006), Onto Clustering of Criminal Careers. In: M. Ackermann, C. Soares and B. Guidemann (red.) Practical Data Mining: Applications, Experiences and Challenges.. 90-93.'refereed' congresbijdrage
  • Graaf E.H. de, Graaf J.M. de & Kosters W.A. (2006), Using Consecutive Support for Genomic Profiling. In: M. Hilarion and C. Nédellec (red.) Data and Text Mining for Integrative Biology.. 16-27.'refereed' congresbijdrage
  • Cocx T.K. & Kosters W.A. (2006), A Distance Measure for Determining Similarity between Criminal Investigations. In: P. Perner (red.) Data Mining. Lecture Notes in Artificial Intelligence. 511-525.'refereed' congresbijdrage
  • Batenburg K.J. & Kosters W.A. (2006), A neural network approach to real-time discrete tomography, 4040: 389-403.'refereed' artikel in een tijdschrift
  • Hoogeboom H.J. & Kosters W.A. (2005), The Theory of Tetris, Nieuwsbrief van de Nederlandse Vereniging voor Theoretische Informatica 9: 14-21.'non-refereed' artikel in een tijdschrift
  • Graaf J.M. de, Menezes R.X. de, Boer J.M. & Kosters W.A. (2005), Frequent Itemsets for Genomic Profiling, Computational Life Sciences. In: Berthold M.R., Glen R., Diederichs K., Kohlbacher O., Fischer I. (red.) Computational Life Sciences, Proceedings of the First International Symposium (CompLife 2005).. 104-116.'refereed' congresbijdrage
  • Graaf E.H. de & Kosters W.A. (2005), Efficient Feature Detection for Sequence Classification in a Receptor Database. In: Proceedings of the 17th Belgian-Dutch Conference on Artificial Inteligence (BNAIC 2005).. 81-88.'refereed' congresbijdrage
  • Breukelaar R., Demaine E.D., Hohenberger S., Hoogeboom H.J., Kosters W.A. & Liben-Nowell D. (2004), Tetris is hard, even to approximate, International Journal of Computational Geometry & Applications 14(1-2): 41-68.'refereed' artikel in een tijdschrift
  • Hoogeboom H.J. & Kosters W.A. (2004), Tetris and Decidability, Information Processing Letters 89: 267-272.'refereed' artikel in een tijdschrift
  • Hoogeboom H.J. & Kosters W.A. (2004), How to Construct Tetris Configurations, International Journal of Intelligent Games and Simulation 3: 94-102.'refereed' artikel in een tijdschrift
  • Batenburg K.J. & Kosters W.A. (2004), A discrete tomography approach to Japanese puzzles. In: Schomaker L., Taatgen N., Verbrugge R. (red.) Proceedings of the Belgian-Dutch Conference on Artificial Intelligence (BNAIC'04)..'refereed' congresbijdrage
  • Graaf J.M. de, Kosters W.A., Pijls W.A.M. & Popova V. (2002), A Theoretical and Practical Comparison of Depth First and FP-growth Implementations of Apriori. In: Blockeel, H., Denecker, M. (red.) Proc. of the Fourteenth Belgium-Nethlands Artificial Intelligence Conference.. 115-122.'refereed' congresbijdrage
  • Keller R.E., Kosters W.A., Vaart M. van der & Witsenburg Martijn D.J. (2002), Genetic Programming Produces Strategies for Agents in a Dynamic Environment. In: Blockeel, H., Denecker, M. (red.) Proc. of the Fourteenth Belgium-Netherlands Artificial Intelligence Conference.. 171-178.'refereed' congresbijdrage
  • Wezel M.C. van & Kosters W.A. (2002), Numerical Integration by Cubature Formulae in Bayesian Neutral Networks. In: Blockeel, H., Denecker, M. (red.) Proc. 14th Belgium-Netherlands Aritificial Intelligence Conference.. 355-362.'refereed' congresbijdrage
  • Kosters W.A. & Wezel M.C. van (2002), Com,petitive Neural Networks for Customer Choice Models. In: Segovia, J., Szczepaniak, P.S., Niedzwiedzinski, M. (red.) E-Commerce and Intelligent Methods, Studies in Fuzziness and Soft Computing.: Physica-Verlag, Springer. 41-60.'refereed' congresbijdrage
  • Kosters W.A. (2002), Neutral Networks for Data Mining. In: Meij, J. (red.) Dealing with the Data Flood: Mining Data, Text and Multimedia.: STT Netherlands. 641-645.boekdeel
  • Kwee L. & Kosters W.A. (2002), Future Cases: Data Mining in Virual Organizations. In: Meij, J. (red.) Dealing with the Data Flood: Mining Data, Text and Multimedia.: STT Netherlands. 335-341.boekdeel
  • Bäck T.H.W., Graaf J.M. de, Kok J.N. & Kosters W.A. (1998), Theory of Genetic Algorithms, Nieuwsbrief van de Nederlandse Vereniging voor Theoretische Informatica 2: 27-35.'refereed' artikel in een tijdschrift
  • Jong M.B. de & Kosters W.A. (1998), Adaptive Sampling. In: Poutré J.A. La, Herik J. van den (red.) NAIC'98, Proceedings of the 10th Netherlands/Belgium Conference on Artificial Intelligence. Amsterdam: CWI, Amsterdam. 221-228.boekdeel
  • Wezel M.C. van, Kok J.N. & Kosters W.A. (1998), Maximum likelihood weights for a linear ensemble of regression neural networks. In: Usui S., Omori T. (red.) Proceedings of the Fifth International Conference on Neural Information Processing (ICONIP'98). Amsterdam: IOS Press. 498-501.boekdeel

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