Reference-based indexing for metric spaces with costly distance measures

Reference-based indexing for metric spaces with costly distance measures We consider the problem of similarity search in databases with costly metric distance measures. Given limited main memory, our goal is to develop a reference-based index that reduces the number of comparisons in order to answer a query. The idea in reference-based indexing is to select a small set of reference objects that serve as a surrogate for the other objects in the database. We consider novel strategies for selection of references and assigning references to database objects. For dynamic databases with frequent updates, we propose two incremental versions of the selection algorithm. Our experimental results show that our selection and assignment methods far outperform competing methods. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The VLDB Journal Springer Journals

Reference-based indexing for metric spaces with costly distance measures

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Publisher
Springer-Verlag
Copyright
Copyright © 2008 by Springer-Verlag
Subject
Computer Science; Database Management
ISSN
1066-8888
eISSN
0949-877X
D.O.I.
10.1007/s00778-007-0062-1
Publisher site
See Article on Publisher Site

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