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Data Organization and Search in Multimedia Databases

  • Kartonierter Einband
  • 200 Seiten
The wealth of multimedia items and their increasing complexity make data organization and search essential. Without efficient stor... Weiterlesen
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Beschreibung

The wealth of multimedia items and their increasing complexity make data organization and search essential. Without efficient storage, accurate search and informative retrieval, it is hard to explore a multimedia repository to its full potential. We argue that the problems of managing large and heterogeneous multimedia repositories can be alleviated by bringing improvements in several aspects: storage model, high-dimensional indexing, and retrieval. Three main contributions are proposed: a database model, a high-dimensional indexing method and a faceted retrieval system. The database model accounts for content organization and its association to metadata. It is a hybrid relational-XML database model. For search within the high-dimensional data, an indexing method called BitMatrix is proposed. It constructs bit signatures that can be efficiently processed with bitwise operations. Our experiments have shown that the use of the BitMatrix as a high-dimensional indexing method is beneficial for the retrieval process. Finally, a retrieval system called MetaMedia was developed, in which the proposed database model and the BitMatrix index are instantiated.

Autorentext

Catalin Mihai Calistru received the PhD degree from theUniversity of Porto in 2009. He is a researcher at the Telecommunications and Multimedia Unit of INESC Porto, and aprofessor at the Polytecnic Institute of Gaya. His researchinterests include web-based information systems, multimediadatabases, and digital libraries.



Klappentext

The wealth of multimedia items and their increasingcomplexity make data organization and searchessential. Without efficient storage, accurate searchand informative retrieval, it is hard to explore amultimedia repository to its full potential.We argue that the problems of managing large andheterogeneous multimedia repositories can bealleviated by bringing improvements in severalaspects: storage model, high-dimensional indexing,and retrieval. Three main contributions are proposed:a database model, a high-dimensional indexing methodand a faceted retrieval system.The database model accounts for content organizationand its association to metadata. It is a hybridrelational-XML database model.For search within the high-dimensional data, anindexing method called BitMatrix isproposed. It constructs bit signatures that can be efficiently processed withbitwise operations. Our experiments have shown thatthe use of the BitMatrix as a high-dimensionalindexing method is beneficial for the retrieval process. Finally, a retrieval system called MetaMedia wasdeveloped, in which the proposed database model andthe BitMatrix index are instantiated.

Produktinformationen

Titel: Data Organization and Search in Multimedia Databases
Untertitel: Databases and Information Retrieval
Autor:
EAN: 9783639170009
ISBN: 978-3-639-17000-9
Format: Kartonierter Einband
Genre: Informatik
Anzahl Seiten: 200
Jahr: 2009
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