R
Ricardo Soto
Researcher at Pontifical Catholic University of Valparaíso
Publications - 413
Citations - 3905
Ricardo Soto is an academic researcher from Pontifical Catholic University of Valparaíso. The author has contributed to research in topics: Metaheuristic & Set cover problem. The author has an hindex of 27, co-authored 393 publications receiving 3332 citations. Previous affiliations of Ricardo Soto include Autonomous University of Chile & University of Valparaíso.
Papers
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Journal ArticleDOI
Putting Continuous Metaheuristics to Work in Binary Search Spaces
Broderick Crawford,Ricardo Soto,Gino Astorga,Gino Astorga,José García,Carlos Castro,Fernando Paredes +6 more
TL;DR: This paper surveys articles focused on the binarization of metaheuristics designed for continuous optimization with good results in continuous search spaces.
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Parameter tuning of a choice-function based hyperheuristic using Particle Swarm Optimization
TL;DR: This paper explores the use of a Choice Function to dynamically select from a set of variable ordering heuristics the one that best matches the current problem state in order to show an acceptable performance over a wide range of instances.
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On the Aα-spectra of trees
TL;DR: In this article, it was shown that the spectral radius of a tree of maximal degree Δ satisfies the tight inequality ρ ( A α ( T Δ ) ) α Δ + 2 ( 1 − α ) Δ − 1, which implies previous bounds of Godsil, Lovasz, and Stevanovic.
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The spectra of the adjacency matrix and Laplacian matrix for some balanced trees
Oscar Rojo,Ricardo Soto +1 more
TL;DR: In this paper, the eigenvalues of the adjacency matrix and of the Laplacian matrix of an unweighted rooted tree of k levels such that in each level the vertices have equal degree were found.
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Applications of a brauer theorem in the nonnegative inverse eigenvalue problem
Ricardo Soto,Oscar Rojo +1 more
TL;DR: In this article, a new realizability criterion for the real nonnegative inverse eigenvalue problem (NIEP) was proposed, which is not contained in Soto's criterion.