Dr Jano van Hemert, FRSE

Science, software and scripts


27 Mar 2001


This page will transform your Netscape (Communicator’s) bookmark file into a Palm Pilot Database file suitable for List DB. This way your can carry around your bookmarks in an easy to view way without having to Graffiti all those bookmarks by hand. Just enter your file in the box (or use the browse button) and click on ‘Get PDB file’. A download window will appear with the file.



17 Aug 1999


Converts the mail aliases of Elm to a list of aliases suited for the Mutt mail reader.


Mondriaan Art

1 May 1999

This application produces Mondriaan (also known as Mondrian) like art. To help people remember what Mondriaan’s art looks like the site is in style of the paintings he made during his last years. Black horizontal and vertical lines that intersect forming rectangular areas that are coloured exclusively using white, black or one of the primary colours. Static Linux version available.

Mondriaan Art

Grouping Genetic Algorithm

1 Oct 1997

For performing experiments on graph k-colouring with the Grouping Genetic Algorithm (GGA) as introduced by E. Falkenauer. For problem instances it uses the Graph Coloring Problem Generator by Joe Culberson. All results in the paper included as a separate archive.

See the following papers for more details.

  • Graph Coloring with Adaptive Evolutionary Algorithms (A.E. Eiben, J.K. van der Hauw, J.I. van Hemert), In Journal of Heuristics, Kluwer Academic Publishers, volume 4, 1998.
  • Comparison of the SAW-ing Evolutionary Algorithm and the Grouping Genetic Algorithm for Graph Coloring (J.I. van Hemert, A.E. Eiben), Technical report, Leiden University, 1997.