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» On (not) indexing quadratic form distance by metric access m...
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EDBT
2011
ACM
225views Database» more  EDBT 2011»
8 years 2 months ago
On (not) indexing quadratic form distance by metric access methods
The quadratic form distance (QFD) has been utilized as an effective similarity function in multimedia retrieval, in particular, when a histogram representation of objects is used...
Tomás Skopal, Tomás Bartos, Jakub Lo...
VLDB
2001
ACM
129views Database» more  VLDB 2001»
9 years 3 months ago
Similarity Search for Adaptive Ellipsoid Queries Using Spatial Transformation
Similarity retrieval mechanisms should utilize generalized quadratic form distance functions as well as the Euclidean distance function since ellipsoid queries parameters may vary...
Yasushi Sakurai, Masatoshi Yoshikawa, Ryoji Kataok...
DATESO
2007
157views Database» more  DATESO 2007»
9 years 21 days ago
Index-Based Approach to Similarity Search in Protein and Nucleotide Databases
When searching databases of nucleotide or protein sequences, finding a local alignment of two sequences is one of the main tasks. Since the sizes of available databases grow const...
David Hoksza, Tomás Skopal
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