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SOFSEM
2007
Springer
15 years 5 months ago
Spatial Selection of Sparse Pivots for Similarity Search in Metric Spaces
Similarity search is a fundamental operation for applications that deal with unstructured data sources. In this paper we propose a new pivot-based method for similarity search, ca...
Oscar Pedreira, Nieves R. Brisaboa
ICIP
2008
IEEE
15 years 6 months ago
Understanding and simplifying the structural similarity metric
The structural similarity (SSIM) metric and its multi-scale extension (MS-SSIM) evaluate visual quality with a modied local measure of spatial correlation consisting of three c...
David M. Rouse, Sheila S. Hemami
ICASSP
2010
IEEE
14 years 12 months ago
Robust similarity metrics between audio signals based on asymmetrical spectral envelope matching
In this paper, a new type of metric that defines the similarity between musical audio signals is proposed. Based on the spectral flatness criterion, those metrics achieve low co...
Mathieu Lagrange, Roland Badeau, Gaël Richard
EDBT
2006
ACM
121views Database» more  EDBT 2006»
15 years 12 months ago
On Fast Non-metric Similarity Search by Metric Access Methods
Abstract. The retrieval of objects from a multimedia database employs a measure which defines a similarity score for every pair of objects. The measure should effectively follow th...
Tomás Skopal
DEXAW
1999
IEEE
168views Database» more  DEXAW 1999»
15 years 4 months ago
Using the Distance Distribution for Approximate Similarity Queries in High-Dimensional Metric Spaces
We investigate the problem of approximate similarity (nearest neighbor) search in high-dimensional metric spaces, and describe how the distance distribution of the query object ca...
Paolo Ciaccia, Marco Patella