AMATO, Giuseppe, Pasquale SAVINO, Rabitti FAUSTO a Pavel ZEZULA. Approximate Similarity Search in Metric Data by Using Region Proximity. In Proceedings of the First DELOS Network of Excellence Workshop on "Information Seeking, Searching and Querying in Digital Libraries". Zurich: ERCIM, 2000, s. 101-106. Workshop series. ISBN ERCIM-01-W01. |
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@inproceedings{348853, author = {Amato, Giuseppe and Savino, Pasquale and Fausto, Rabitti and Zezula, Pavel}, address = {Zurich}, booktitle = {Proceedings of the First DELOS Network of Excellence Workshop on "Information Seeking, Searching and Querying in Digital Libraries"}, language = {eng}, location = {Zurich}, isbn = {ERCIM-01-W01}, pages = {101-106}, publisher = {ERCIM}, title = {Approximate Similarity Search in Metric Data by Using Region Proximity}, year = {2000} }
TY - JOUR ID - 348853 AU - Amato, Giuseppe - Savino, Pasquale - Fausto, Rabitti - Zezula, Pavel PY - 2000 TI - Approximate Similarity Search in Metric Data by Using Region Proximity VL - Workshop series PB - ERCIM CY - Zurich SN - ERCIM01W01 N2 - The problem of approximated similarity search for the range and nearest neighbor queries is investigated for generic metric spaces. The search speedup is achieved by ignoring data regions with a small, user defined, proximity with respect to the query. For zero proximity, exact similarity search is performed. The problem of proximity of metric regions is explained and a probabilistic approach is applied. Approximated algorithms use a small amount of auxiliary data that can easily be maintained in main memory. The idea is implemented in a metric tree environment and experimentally evaluated on real-life files using specific performance measures. Improvements of two orders of magnitude can be achieved for moderately approximated search results. It is also demonstrated that the precision of proximity measures can significantly influence the quality of approximated algorithms. ER -
AMATO, Giuseppe, Pasquale SAVINO, Rabitti FAUSTO a Pavel ZEZULA. Approximate Similarity Search in Metric Data by Using Region Proximity. In \textit{Proceedings of the First DELOS Network of Excellence Workshop on ''Information Seeking, Searching and Querying in Digital Libraries''}. Zurich: ERCIM, 2000, s.~101-106. Workshop series. ISBN~ERCIM-01-W01.
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