Zobrazeno 1 - 10
of 733
pro vyhledávání: '"Tajmouati, A."'
In this paper, we apply conformal prediction to time series data. Conformal prediction isa method that produces predictive regions given a confidence level. The regions outputs arealways valid under the exchangeability assumption. However, this assum
Externí odkaz:
http://arxiv.org/abs/2110.13031
K-nearest neighbors algorithm is one of the prominent techniques used in classification and regression. Despite its simplicity, the k-nearest neighbors has been successfully applied in time series forecasting. However, the selection of the number of
Externí odkaz:
http://arxiv.org/abs/2103.14200
Autor:
Maud Parrot, Hamza Tajmouati, Vinicius Barros Ribeiro da Silva, Brian Ross Atwood, Robin Fourcade, Yann Gaston-Mathé, Nicolas Do Huu, Quentin Perron
Publikováno v:
Journal of Cheminformatics, Vol 15, Iss 1, Pp 1-17 (2023)
Abstract Generative models are frequently used for de novo design in drug discovery projects to propose new molecules. However, the question of whether or not the generated molecules can be synthesized is not systematically taken into account during
Externí odkaz:
https://doaj.org/article/c00070d8eba741aeb536bbb3910125d4
Autor:
Tajmouati, Abdelaziz, Barki, Fatih
Let $\{T(t)\}_{t\geq 0}$ be a $C_0$-semigroup of bounded linear operators on the Banach space ${X}$ into itself and let $A$ be their infinitesimal generator. In this paper, we show that if $T(t)$ is uniformly ergodic, then $A$ does not have the singl
Externí odkaz:
http://arxiv.org/abs/1912.10947
Let $A\in\mathcal{B}(X)$, $B\in\mathcal{B}(Y)$ and $C\in\mathcal{B}(Y,X)$ where $X$ and $Y$ are infinite Banach or Hilbert spaces. Let $M_{C}=\begin{pmatrix} A & C\cr 0 & B \end{pmatrix}$ be $2\times 2$ upper triangular operator matrix acting on $X\o
Externí odkaz:
http://arxiv.org/abs/1907.12032
Autor:
Tajmouati, Abdelaziz, Zahouan, Youness
In this paper, we describe the different spectra of the $C_0$-quasi-semigroups by the spectra of their generators. Specially, essential ascent and descent,Drazin invertible, upper and lower semi-Fredholm and semi-Browder spectra.
Externí odkaz:
http://arxiv.org/abs/1812.07278
Autor:
Tajmouati, Abdelaziz, Zahouan, Youness
In this paper we give a various conditions for which the tuple $\mathcal{T} = (T_{1} , T_{2} , ... , T_{n})$ of commutative bounded linear operators on an infinite dimensional ( real , complex ) Banach space X is orbit reflexive. After we introduce t
Externí odkaz:
http://arxiv.org/abs/1812.07276
In this paper, we show a spectral inclusion of a different spectra of a C0-quasi-semigroup and its generator and precisely for ordinary, point, approximate point, residual, essential and regular spectra.
Externí odkaz:
http://arxiv.org/abs/1812.00461
In this paper we study the relations between Ces\`aro-hypercyclic operators and the operators for which Weyl type theorem holds.
Externí odkaz:
http://arxiv.org/abs/1811.02262
Let $(T(t))_{t\geq 0}$ be a $C_0$ semigroup on a Banach space $X$ with infinitesimal generator $A$. In this work, we give conditions for which the spectral mapping theorem $\sigma_{*}(T(t))\backslash \{0\}=\{e^{\lambda s}, \lambda\in\sigma_{*}(A)\}$
Externí odkaz:
http://arxiv.org/abs/1811.01876