D ON ' T M ATCH T WICE : R EDUNDANCY - FREE S IMILARITY C OMPUTATION WITH M AP R EDUCE Lars Kolb, Andreas Thor, Erhard Rahm Database Group Leipzig University.
1 Developments in Metrology Ed W.B. de Leer NMi Van Swinden Laboratorium The Netherlands UNECE WP.6 Presentation 24 november 2004.
