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Stereographic wavelet frames on the sphere
(Academic Press Inc Elsevier Science, 2005-09)
In this paper we exploit the continuous wavelet transform (CWT) on the two-dimensional sphere S2, introduced previously by two of us, to build associated discrete wavelet frames. We first explore half-continuous frames, ...
Optimal dual frames and frame completions for majorization
(Academic Press Inc Elsevier Science, 2013-03)
In this paper we consider two problems in frame theory. On the one hand, given a set of vectors F we describe the spectral and geometrical structure of optimal completions of F by a finite family of vectors with prescribed ...
The triangle formed by framing, agenda-setting and metacoverage
(Universidad del Rosario / Universidad de Los Andes / Universidad Complutense de Madrid, 2014)
Minimization of convex functionals over frame operators
(Springer, 2010-02)
We present results about minimization of convex functionals defined over a finite set of vectors in a finite-dimensional Hilbert space, that extend several known results for the Benedetto-Fickus frame potential. Our approach ...
Irregular wavelet frames and gabor frames
(Springer, 2001-12)
Given g ∈ L^2(R^n), we consider irregular wavelet systems of the form {λ^{n/2}_j g(λ_jx − kb)}j∈Z,k∈Z^n , where λ_j > 0 and b > 0. Sufficient conditions for the wavelet system to constitute a frame for L^2(R^n) are given. ...
Semântica de frames e recursos lexicais jurídicos: um estudo contrastivo
(Universidade do Vale do Rio dos Sinos, 2011-01-05)
This Ph.D. dissertation discusses the challenges to be faced in developing multilingual lexical resources according to the FrameNet paradigm. This work was based on Frame Semantics. The starting point was the Criminal_process ...
Semântica de frames e recursos lexicais jurídicos: um estudo contrastivo
(Universidade do Vale do Rio dos Sinos, 2011-01-05)
This Ph.D. dissertation discusses the challenges to be faced in developing multilingual lexical resources according to the FrameNet paradigm. This work was based on Frame Semantics. The starting point was the Criminal_process ...
Eventos legais e sua descrição conforme a semântica de frames
(Universidade do Vale do Rio dos Sinos, 2016-02-29)
According to the demand for increasingly efficient computer systems with respect to information retrieval, as well as the large number of legal sites, ontologies have proved to be useful means of organizing information in ...
Eventos legais e sua descrição conforme a semântica de frames
(Universidade do Vale do Rio dos Sinos, 2016-02-29)
According to the demand for increasingly efficient computer systems with respect to information retrieval, as well as the large number of legal sites, ontologies have proved to be useful means of organizing information in ...