Kothuri Venkata Ravi Kanth Divyakant Agrawal Amr El Abbadi Ambuj K. Singh Dimensionality Reduction for Similarity Searching in Dynamic Databases. 59-72 1999 75 Computer Vision and Image Understanding 1-2 http://dx.doi.org/10.1006/cviu.1999.0762 db/journals/cviu/cviu75.html#KanthAAS99