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» A Characterization of Constructive Dimension
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JSC
2007
79views more  JSC 2007»
14 years 11 months ago
Computation of bases of free modules over the Weyl algebras
A well-known result due to J. T. Stafford asserts that a stably free left module M over the Weyl algebras D = An(k) or Bn(k) − where k is a field of characteristic 0 − with ...
Alban Quadrat, Daniel Robertz
ICCV
2003
IEEE
16 years 1 months ago
Unified Subspace Analysis for Face Recognition
We propose a face difference model that decomposes face difference into three components, intrinsic difference, transformation difference, and noise. Using the face difference mod...
Xiaogang Wang, Xiaoou Tang
ICIP
2009
IEEE
16 years 29 days ago
Higher-order Riesz Transforms And Steerable Wavelet Frames
We introduce an Nth-order extension of the Riesz transform in d dimensions. We prove that this generalized transform has the following remarkable properties: shift-invariance, sca...
EWSA
2005
Springer
15 years 5 months ago
Context-Awareness in Software Architectures
The growing importance of context-awareness in the construction of adaptable systems requires the development of formal models and notations that can bring this new dimension from ...
Antónia Lopes, José Luiz Fiadeiro
ENDM
2008
61views more  ENDM 2008»
14 years 12 months ago
Diameter and Curvature: Intriguing Analogies
We highlight intriguing analogies between the diameter of a polytope and the largest possible total curvature of the associated central path. We prove continuous analogues of the ...
Antoine Deza, Tamás Terlaky, Feng Xie, Yuri...