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SIAMMAX
2010
104views more  SIAMMAX 2010»
13 years 2 months ago
The Legendre-Fenchel Conjugate of the Product of Two Positive Definite Quadratic Forms
It is well-known that the Legendre-Fenchel conjugate of a positive definite quadratic form can be explicitly expressed as another positive definite quadratic form, and that the con...
Yun-Bin Zhao
MM
2009
ACM
199views Multimedia» more  MM 2009»
14 years 2 months ago
Signature quadratic form distances for content-based similarity
Determining similarity is a fundamental task in querying multimedia databases in a content-based way. For this challenging task, there exist numerous similarity models which measu...
Christian Beecks, Merih Seran Uysal, Thomas Seidl
SISAP
2010
IEEE
243views Data Mining» more  SISAP 2010»
13 years 5 months ago
Similarity matrix compression for efficient signature quadratic form distance computation
Determining similarities among multimedia objects is a fundamental task in many content-based retrieval, analysis, mining, and exploration applications. Among state-of-the-art sim...
Christian Beecks, Merih Seran Uysal, Thomas Seidl
TWC
2008
126views more  TWC 2008»
13 years 7 months ago
Quadratic forms in normal RVs: theory and applications to OSTBC over hoyt fading channels
In this paper, the statistics of quadratic forms in normal random variables (RVs) are studied and their impact on performance analysis of wireless communication systems is explored...
George A. Ropokis, Athanasios A. Rontogiannis, P. ...
SIAMMAX
2011
92views more  SIAMMAX 2011»
12 years 10 months ago
A Condition for Convexity of a Product of Positive Definite Quadratic Forms
A sufficient condition for the convexity of a finite product of positive definite quadratic forms is given in terms of the condition numbers of the underlying matrices. When only...
Minghua Lin, Gord Sinnamon