An open-source C-based library for metric space indexing
This library contains source code implementing several indexing algorithms, as well as metric spaces, conforming to an API that permits adding new indexes and spaces. In addition, there are example instances and automatic generators for different metric spaces.
Download all the database instances provided from here (gzipped tar). Beware of its size! This will expand into a directory dbs/ that should go inside directory metricSpaces/ of the main structure (where the directory already exists).
If you only want some databases, then browse them and download those you really want. Expand them in the correct subdirectory of metricSpaces/dbs/.
The manual is inside the main structure, but you can also download it directly.
Database of faces by Karina Figueroa. August 2008.
Counting Distance Permutations by Matthew Skala.
Visual similarity in sign language by Jan Ulrych.