J. Keukelaar

Representing Uncertainty in Geographical Data

O. Ahlqvist, Karim Oukbir, J. Keukelaar, 2000 .

Topics in Soft Computing

J. H. D. Keukelaar, J. Keukelaar, 2002 .

A visual programming language for the analysis of uncertain spatial data

Johannes Keukelaar, J. Keukelaar, 1999 .

Rough classification and accuracy assessment

Ola Ahlqvist, Johannes Keukelaar, Karim Oukbir, 2000, Int. J. Geogr. Inf. Sci..

Evolving structure - optimising content

Peter A. Whigham, J. Keukelaar, P. Whigham, 2001, Proceedings of the 2001 Congress on Evolutionary Computation (IEEE Cat. No.01TH8546).