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NM-tree: Flexible Approximate Similarity Search in Metric and Non-metric Spaces

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F08%3A00206202" target="_blank" >RIV/00216208:11320/08:00206202 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    NM-tree: Flexible Approximate Similarity Search in Metric and Non-metric Spaces

  • Original language description

    So far, an efficient similarity search in multimedia databases has been carried out by metric access methods (MAMs), where the utilized similarity measure had to satisfy the metric properties (reflexivity, non-negativity, symmetry, triangle inequality).Recently, the introduction of TriGen algorithm (turning any nonmetric into metric) enabled MAMs to perform also nonmetric similarity search. Moreover, it simultaneously enabled faster approximate search (either metric or nonmetric). However, a simple application of TriGen as the first step before MAMs' indexing assumes a fixed ``approximation level'', that is, a user-defined tolerance of retrieval precision is preset for the whole index lifetime. In this paper, we push the similarity search forward; wepropose the NM-tree (nonmetric tree) -- a modification of M-tree which natively aggregates the TriGen algorithm to support emph{flexible approximate} nonmetric or metric search.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    JC - Computer hardware and software

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/1ET100300419" target="_blank" >1ET100300419: Intelligent Models, Algorithms, Methods and Tools for the Semantic Web (realization)</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2008

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    19th International Conference on Database and Expert Systems Applications

  • ISBN

    978-3-540-85653-5

  • ISSN

  • e-ISSN

  • Number of pages

    14

  • Pages from-to

  • Publisher name

  • Place of publication

  • Event location

    Neuveden

  • Event date

    Jan 1, 2008

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article

    000259140900030