title: the a-tree : an index structure for high-dimensional spaces using relative approximation. authors: masatoshi yoshikawa , shunsuke uemura , yasushi sakurai , haruhiko kojima. venue: vldb. year: 2000.0
title: distance-based indexing for high-dimensional metric spaces 1997. authors: tolga bozkaya , meral ozsoyoglu. venue: international conference on management of data. year: nan