3 papers
astro-ph.EP2026
Inferring stellar metallicity and elemental abundances from kinematic and spectroscopic data using machine learning -- Implications for exoplanet host stars
V. Adibekyan, B. M. T. B. Soares, S. G. Sousa +7
(abridged) Elemental abundances of FGK stars can be derived routinely from high-resolution optical spectra, but this remains considerably more difficult for cooler stars. Machine-l…
math.OC2025
Optimizing Image Retrieval with an Extended b-Metric Space
Abdelkader Belhenniche, Roman Chertovskih
This article provides a new approach on how to enhance data storage and retrieval in the Query By Image Content Systems (QBIC) by introducing the distance measure, s…
math.OC2024
Fixed Point Theory Analysis of a Lambda Policy Iteration with Randomization for the ÄiriÄ Contraction Operator
Abdelkader Belhenniche, Roman Chertovskih
We apply methods of the fixed point theory to a Lambda policy iteration with a randomization algorithm for weak contractions mappings. This type of mappings covers a broader range…