Popularity-Based Ranking for Fast Approximate kNN Search

Logo poskytovatele

Varování

Publikace nespadá pod Ekonomicko-správní fakultu, ale pod Fakultu informatiky. Oficiální stránka publikace je na webu muni.cz.
Autoři

ANTOL Matej DOHNAL Vlastislav

Rok publikování 2017
Druh Článek v odborném periodiku
Časopis / Zdroj Informatica
Fakulta / Pracoviště MU

Fakulta informatiky

Citace
www https://informatica.vu.lt/journal/INFORMATICA/article/838/info
Doi http://dx.doi.org/10.15388/Informatica.2017.118
Obor Informatika
Klíčová slova kNN query;approximate search;query popularity;index structure;metric space
Popis Similarity searching has become widely available in many on-line archives of multimedia data. Users accessing such systems look for data items similar to their specific query object and typically refine results by re-running the search with a query from the results. We study this issue and propose a mechanism of approximate kNN query evaluation that incorporates statistics of accessing index data partitions. Apart from the distance between database objects, it also considers the prior query answers to prioritize index partitions containing frequently retrieved data, so evaluating repetitive similar queries more efficiently. We verify this concept in a number of experiments.
Související projekty:

Používáte starou verzi internetového prohlížeče. Doporučujeme aktualizovat Váš prohlížeč na nejnovější verzi.