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PPP-Codes: Similarity Search Index

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14330%2F13%3A00065750" target="_blank" >RIV/00216224:14330/13:00065750 - isvavai.cz</a>

  • Result on the web

    <a href="http://disa.fi.muni.cz/results/software/ppp-codes/" target="_blank" >http://disa.fi.muni.cz/results/software/ppp-codes/</a>

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    PPP-Codes: Similarity Search Index

  • Original language description

    Many current applications need to organize data with respect to mutual similarity between data objects (for instance biometric systems). A typical general strategy to retrieve the most similar objects to a given example is to access and then refine a candidate set of objects; the overall search costs (and search time) then typically correlate with the candidate set size. The PPP-Codes index provides a generic approach that combines several independent indexes by aggregating their candidate sets in sucha way that the resulting candidate set can be one or two orders of magnitude smaller (while keeping the answer quality). This achievement comes at the expense of higher computational costs of the ranking algorithm but our experiments on various datasetsindicate that the overall gain can be significant, especially for data types with large objects or expensive similarity function such as biometric systems.

  • Czech name

  • Czech description

Classification

  • Type

    R - Software

  • CEP classification

    IN - Informatics

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/VG20122015073" target="_blank" >VG20122015073: Efficient Searching in Large Biometric Data</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2013

  • Confidentiality

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

Data specific for result type

  • Internal product ID

    PPP-Codes

  • Technical parameters

    Pro využití softwaru je nutné postupovat podle licence GNU GPL. Odpovědná osoba pro jednání: David Novák, Fakulta informatiky, Masarykova univerzita, Botanická 68a, Brno, 602 00, david.novak@fi.muni.cz, tel. 549495062

  • Economical parameters

    Software je využíván zejména vědeckou komunitou. Umožňuje vlastníkovi a jiným uživatelům vybudovat index pro podobnostní vyhledávání v různorodých datech na základě podobnosti. Index je navržen tak, aby silně redukoval kandidátní množinu vracených objektů a proto je velmi efektivní zejména pro datové typy s většími objekty nebo dražší podobnostní funkcí.

  • Owner IČO

    00216224

  • Owner name

    Masarykova univerzita