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» On Multiple Linear Approximations
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CORR
2011
Springer
168views Education» more  CORR 2011»
14 years 5 months ago
Submodular meets Spectral: Greedy Algorithms for Subset Selection, Sparse Approximation and Dictionary Selection
We study the problem of selecting a subset of k random variables from a large set, in order to obtain the best linear prediction of another variable of interest. This problem can ...
Abhimanyu Das, David Kempe
88
Voted
ICASSP
2011
IEEE
14 years 2 months ago
Quadrature approximation properties of the spiral-phase quadrature transform
The notion of the 1-D analytic signal is well understood and has found many applications. At the heart of the analytic signal concept is the Hilbert transform. The problem in exte...
Haricharan Aragonda, Chandra Sekhar Seelamantula
98
Voted
FGCS
2006
142views more  FGCS 2006»
14 years 11 months ago
Conservation properties of multisymplectic integrators
Recent results on the local and global properties of multisymplectic discretizations of Hamiltonian PDEs are discussed. We consider multisymplectic (MS) schemes based on Fourier s...
Alvaro L. Islas, Constance M. Schober
ICDE
2008
IEEE
157views Database» more  ICDE 2008»
16 years 10 days ago
TALE: A Tool for Approximate Large Graph Matching
Abstract-- Large graph datasets are common in many emerging database applications, and most notably in large-scale scientific applications. To fully exploit the wealth of informati...
Yuanyuan Tian, Jignesh M. Patel
COMPGEOM
2006
ACM
15 years 5 months ago
Medial axis approximation and unstable flow complex
The medial axis of a shape is known to carry a lot of information about it. In particular a recent result of Lieutier establishes that every bounded open subset of Rn has the same...
Joachim Giesen, Edgar A. Ramos, Bardia Sadri