Metric-temporal access methods

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Metric-temporal databases are a new database model that combines metric spaces with temporal databases to process similarity queries within a time interval or snapshot. The Historical FHQT is a metric-temporal index which has shown to be competitive answering this type of queries. This index store a...

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Autores principales: De Battista, Anabella, Herrera, Norma Edith, Gutiérrez Retamal, Gilberto A., Pascal, Andrés
Formato: Articulo
Lenguaje:Inglés
Publicado: 2010
Materias:
Ciencias Informáticas
Metrics
Base de Datos
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/9669
http://journal.info.unlp.edu.ar/wp-content/uploads/JCST-Jun10-2.pdf
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-9669
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Informáticas
Metrics
Base de Datos
spellingShingle Ciencias Informáticas
Metrics
Base de Datos
De Battista, Anabella
Herrera, Norma Edith
Gutiérrez Retamal, Gilberto A.
Pascal, Andrés
Metric-temporal access methods
topic_facet Ciencias Informáticas
Metrics
Base de Datos
description Metric-temporal databases are a new database model that combines metric spaces with temporal databases to process similarity queries within a time interval or snapshot. The Historical FHQT is a metric-temporal index which has shown to be competitive answering this type of queries. This index store a list of valid snapshots where each one contains an Fixed Height Queries Tree that indexes all objects existing at that instant. In this paper we present an improvement to this access method that consists in using different sets of pivots for the Fixed Height Queries Tree that correspond to consecutive time instants. The experimental results show this modification improves the filtering capacity of the index.
format Articulo
Articulo
author De Battista, Anabella
Herrera, Norma Edith
Gutiérrez Retamal, Gilberto A.
Pascal, Andrés
author_facet De Battista, Anabella
Herrera, Norma Edith
Gutiérrez Retamal, Gilberto A.
Pascal, Andrés
author_sort De Battista, Anabella
title Metric-temporal access methods
title_short Metric-temporal access methods
title_full Metric-temporal access methods
title_fullStr Metric-temporal access methods
title_full_unstemmed Metric-temporal access methods
title_sort metric-temporal access methods
publishDate 2010
url http://sedici.unlp.edu.ar/handle/10915/9669
http://journal.info.unlp.edu.ar/wp-content/uploads/JCST-Jun10-2.pdf
work_keys_str_mv AT debattistaanabella metrictemporalaccessmethods
AT herreranormaedith metrictemporalaccessmethods
AT gutierrezretamalgilbertoa metrictemporalaccessmethods
AT pascalandres metrictemporalaccessmethods
bdutipo_str Repositorios
_version_ 1764820492371361792

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