Document (#21923)

Author

Ramsey, M.C.
Chen, H.
Zhu, B.
Schatz, B.R.

Title

¬A collection of visual thesauri for browsing large collections of geographic images

Source

Journal of the American Society for Information Science. 50(1999) no.9, S.826-834

Year

1999

Abstract

Digital libraries of geo-spatial multimedia content are currently deficient in providing fuzzy, concept-based retrieval mechanisms to users. The main challenge is that indexing and thesaurus creation are extremely labor-intensive processes for text documents and especially for images. Recently, 800.000 declassified staellite photographs were made available by the US Geological Survey. Additionally, millions of satellite and aerial photographs are archived in national and local map libraries. Such enormous collections make human indexing and thesaurus generation methods impossible to utilize. In this article we propose a scalable method to automatically generate visual thesauri of large collections of geo-spatial media using fuzzy, unsupervised machine-learning techniques

Theme

Suchoberflächen

Field

Geowissenschaften

Form

Bilder

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5. Ma, W.-Y.; Manjunath, B.S.: ¬A texture thesaurus for browsing large aerial photographs (1998) 0.13

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