Results 41 to 50 of about 2,412,507 (179)
BackgroundIn 2012 mobile phone numbers were included into the ongoing New South Wales Population Health Survey (NSWPHS) using an overlapping dual-frame design.
Margo L Barr+3 more
semanticscholar +1 more source
Sparsity and spectral properties of dual frames
We study sparsity and spectral properties of dual frames of a given finite frame. We show that any finite frame has a dual with no more than $n^2$ non-vanishing entries, where $n$ denotes the ambient dimension, and that for most frames no sparser dual is possible.
Krahmer, Felix+2 more
openaire +5 more sources
Localization of the spectra of dual frames multipliers
This paper concerns dual frames multipliers, i.e. operators in Hilbert spaces consisting of analysis, multiplication and synthesis processes, where the analysis and the synthesis are made by two dual frames, respectively. The goal of the paper is to give some results about the localization of the spectra of dual frames multipliers, i.e.
openaire +4 more sources
Unmanned aerial vehicle (UAV)-based remote sensing provides a flexible, low-cost, and efficient approach to monitor crop growth status at fine spatial and temporal resolutions, and has a high potential to accelerate breeding process and improve precision
Haiyan Cen+13 more
semanticscholar +1 more source
Frame representations and Parseval duals with applications to Gabor frames [PDF]
Let {x n } be a frame for a Hilbert space H. We investigate the conditions under which there exists a dual frame for {x n } which is also a Parseval (or tight) frame. We show that the existence of a Parseval dual is equivalent to the problem whether (x n ) can be dilated to an orthonormal basis (under an oblique projection).
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Practical Guidelines for Dual-Frame RDD Survey METHODOLOGY (Now That the Dust is Settling)
Practical Guidelines for Dual-Frame RDD Survey METHODOLOGY (Now That the Dust is Settling)
M. Fahimi
semanticscholar +1 more source
AbstractA characterization of multivariate dual wavelet tight frames for any general dilation matrix is presented in this paper. As an application, Lawton's result on wavelet tight frames inL2(R) is generalized to then-dimensional case. Two ways of constructing certain dual wavelet tight frames inL2(Rn) are suggested.
openaire +2 more sources
Duals of Some Constructed $*$-Frames by Equivalent $*$-Frames
Hilbert frames theory have been extended to frames in Hilbert $C^*$-modules. The paper introduces equivalent $*$-frames and presents ordinary duals of a constructed $*$-frame by an adjointable and invertible operator. Also, some necessary and sufficient conditions are studied such that $*$-frames and ordinary duals or operator duals of another ...
openaire +3 more sources
Dual Targeting of Spinach Protoporphyrinogen Oxidase II to Mitochondria and Chloroplasts by Alternative Use of Two In-frame Initiation Codons [PDF]
Naohide Watanabe+5 more
openalex +1 more source