Spatio-Temporal Databases

Name: Spatio-Temporal Databases
Brand: Springer International Publishing AG
SKU: 9783319024073
Price: 212.24 PLN
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Complex Motion Pattern Queries

Autor: Marcos R. Vieira, Vassilis J. Tsotras

Język:

Oprawa: Miękka

Wydawca: Springer International Publishing AG

Dostępność: Dostępna u dostawcy

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This brief presents several new query processing techniques, called complex motion pattern queries,...

Informacje o książce

Autor

Marcos R. Vieira, Vassilis J. Tsotras

Język

Angielski

Oprawa

Książka - Miękka

Data wydania

2013

strony

114

EAN

9783319024073

ISBN

3319024078

Enbook ID

02081863

Wydawca

Springer International Publishing AG

Waga

202

Wymiary

156 x 234 x 7

Pełny opis

This brief presents several new query processing techniques, called complex motion pattern queries, specifically designed for very large spatio-temporal databases of moving objects. The brief begins with the definition of flexible pattern queries, which are powerful because of the integration of variables and motion patterns. This is followed by a summary of the expressive power of patterns and flexibility of pattern queries. The brief then present the Spatio-Temporal Pattern System (STPS) and density-based pattern queries. STPS databases contain millions of records with information about mobile phone calls and are designed around cellular towers and places of interest. Density-based pattern queries capture the aggregate behavior of trajectories as groups. Several evaluation algorithms are presented for finding groups of trajectories that move together in space and time, i.e. within a predefined distance to each other. Finally, the brief describes a generic framework, called DivDB, for diversifying query results. Two new evaluation methods, as well as several existing ones, are described and tested in the proposed DivDB framework. The efficiency and effectiveness of all the proposed complex motion pattern queries are demonstrated through an extensive experimental evaluation using real and synthetic spatio-temporal databases. This clear evaluation of new query processing techniques makes Spatio-Temporal Database a valuable resource for professionals and researchers studying databases, data mining, and pattern recognition.

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