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It aims to recover a set of jointly sparse vectors, i.e., those that have nonzero entries concentrated at a common location.
Instead of a single measurement b, we are given a set of r measurements, begin{aligned} Ax^{ k)}=b^{ k)}, quad k=1, dots, r, end{aligned} (2) in which the vectors (x^{ k)}) ((k=1, dots, r)) are joint sparse, i.e., the solution vectors share a common support and have nonzero entries concentrated at common locations.
If the observations y belongs to a particular class, the corresponding coefficients in x will have a few non-zero entries concentrated around a particular region, whereas the rest will be zeros; i.e., the vector x is a sparse vector with many zero entries.
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There are many important issues and questions in this neighborhood; this entry concentrates on just a few.
Finally, and more controversially, this entry concentrates on Western epistemology of religion, which is not, however, the same as the epistemology of Western religion.
This entry concentrates on the emergence of non-trivial logical themes and notions from the discussion on paradoxes from the beginning of the 20th century until 1945, and attempts to assess their importance for the development of contemporary logic.
However, because ecology has not received the degree of professional philosophical attention it deserves while popular "ecological philosophies" abound this entry concentrates more on foundational and interpretive issues raised by the science of ecology rather than only on what philosophers have written about the subject.
For the most part the discussion in this entry concentrates on egalitarianism as a morally required component of justice, but in considering arguments against a version of egalitarianism, it is worthwhile keeping in mind the possibility that the norm in question is morally desirable but not morally mandatory.
Whereas depolarization-induced Ca2+-entry is concentrated to discrete areas in control cells (Fig. 3B), it becomes more diffuse in β-cells exposed to FFAs (Fig. 3C).
"In the first year entries were very concentrated in [Melbourne's] northern suburbs but now they are coming from all over, even Queensland, which is great," Mazzarella says.
In this entry we concentrate on the general theory of the algebraization of propositional logics taken as consequence relations.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com