MUFIN (Multi-Feature Indexing Network): Represents a joint research effort towards a scalable and extensible similarity search system for many applications.
HnSRTre (The SR-tree library): The SR-tree is a multidimensional index structure designed for the acceleration of the nearest-neighbor search of high-dimensional points in the Euclidean space. The SR-tree is a disk-based index structure and applicable to large data sets, say, a database containing more than 10,000 points.
COREL (Polygons): This dataset contains image features extracted from a Corel image collection. Four sets of features are available based on the color histogram, color histogram layout, color moments, and co-occurence texture.
SAPIR EU: project The CoPhIR (Content-based Photo Image Retrieval) Test-Collection has been developed to make significant tests on the scalability of the SAPIR project infrastructure (SAPIR: Search In Audio Visual Content Using Peer-to-peer IR) for similarity search.
NEAREST NEIGHBORS AND SIMILARITY SEARCH: an amazingly complete page dedicated to software, literature, researchers, and events related to NN searching.