Zobrazeno 1 - 10
of 403
pro vyhledávání: '"Smooth approximation"'
Autor:
Natalia Ivanchuk, Vasyl Ivanchuk
Publikováno v:
Journal of Optimization, Differential Equations and Their Applications, Vol 32, Iss 2, Pp 118-136 (2024)
Mostly motivated by the image segmentation problem and its applications to the extraction of agricultural crop fields from satellite data, we propose a new PDE (partial differential equation) formulation for the piecewise constant approximation of sa
Externí odkaz:
https://doaj.org/article/51714cbec60f42d1a5caf30157823e84
Akademický článek
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Publikováno v:
Journal of Inequalities and Applications, Vol 2022, Iss 1, Pp 1-14 (2022)
Abstract Many practical problems, such as computer science, communications network, product design, system control, statistics and finance, etc.,can be formulated as a probabilistic constrained optimization problem (PCOP) which is challenging to solv
Externí odkaz:
https://doaj.org/article/dbe45cafda7f4cd4aab50b9e1100f6ba
Autor:
Fehmi Emre Kadan, Ali Ozgur Yilmaz
Publikováno v:
IEEE Access, Vol 9, Pp 36399-36416 (2021)
It is known that data rates in standard cellular networks are limited due to inter-cell interference. An effective solution of this problem is to use the multi-cell cooperation idea. In Cloud Radio Access Network, which is a candidate solution in 5G
Externí odkaz:
https://doaj.org/article/bd5a25788a664a479c20776682c57d25
Autor:
Bagul Yogesh J., Chesneau Christophe
Publikováno v:
Moroccan Journal of Pure and Applied Analysis, Vol 7, Iss 1, Pp 12-19 (2021)
We present smooth approximations to the absolute value function |x| using sigmoid functions. In particular, x erf(x/μ) is proved to be a better smooth approximation for |x| than x tanh(x/μ) and x2+μ\sqrt {{x^2} + \mu } with respect to accuracy. To
Externí odkaz:
https://doaj.org/article/64defcc04c214719bf81c33843fca84c
Publikováno v:
Pracì Mìžnarodnogo Geometričnogo Centru, Vol 13, Iss 2, Pp 68-108 (2020)
Let $M, N$ the be smooth manifolds, $\mathcal{C}^{r}(M,N)$ the space of ${C}^{r}$ maps endowed with the corresponding weak Whitney topology, and $\mathcal{B} \subset \mathcal{C}^{r}(M,N)$ an open subset. It is proved that for $0
Externí odkaz:
https://doaj.org/article/1e79d3b549a94dfca837772815339b6a
Akademický článek
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Publikováno v:
IEEE Access, Vol 8, Pp 100521-100532 (2020)
As some of the objective functions are piecewise, so they are non-differentiable at specific points which have a significant impact on deep network rate and computational time. The non-differentiability issue increases the computational time dramatic
Externí odkaz:
https://doaj.org/article/17f2a8ec95944b90854b29413c7c9749
Autor:
Doan Phong Tung, Atsuhiro Takasu
Publikováno v:
IEEE Access, Vol 8, Pp 217928-217946 (2020)
Multiview learning is concerned with machine learning problems, where data are represented by distinct feature sets or views. Recently, this definition has been extended to accommodate sequential data, i.e., each view of the data is in the form of a
Externí odkaz:
https://doaj.org/article/7cda7b91e62f4b46b4f175dfd73375d3