Exploració per altres contribucions "Fernández Sánchez, Jesús"
Ara es mostren els items 1-10 de 10
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Algebraic and semi-algebraic phylogenetic reconstruction
(Universitat Politècnica de Catalunya, 2021-07-22)
Tesi
Accés obertPhylogenetics is the study of the evolutionary history and relationships among groups of biological entities (called taxa). The modeling of those evolutionary processes is done by phylogenetic trees whose nodes represent ... -
Algebraic invariants of phylogenetic networks
(Universitat Politècnica de Catalunya, 2023-05-02)
Projecte Final de Màster Oficial
Accés obertPhylogenetics is a scientific field that focuses on understanding the evolutionary relationships between living organisms. Specifically, it seeks to reconstruct the evolutionary history of these organisms and the ... -
Algebraic phylogenetic reconstruction based on proteins and its application to Persea americana
(Universitat Politècnica de Catalunya, 2018-09)
Treball Final de Grau
Accés obertPhylogenetic reconstruction methods attempt to infer the evolutionary relationships among a group of species. Apart from classical reconstruction methods, new methods have been developed based on algebraic relationships ... -
Algebraic statistics in phylogenetic reconstruction: incorporating invariable sites
(Universitat Politècnica de Catalunya, 2023-06)
Projecte Final de Màster Oficial
Accés obertIn modern phylogenetics, when comparing sequences of DNA the traditional approach assumes that nu- cleotide substitutions follow a Markov model, that sites on a DNA sequence evolve independently and in the same way. However, ... -
Application of algebraic techniques to phylogenetic reconstruction
(Universitat Politècnica de Catalunya, 2015-05)
Treball Final de Grau
Accés obertPhylogenetics is the study of the evolutionary relationships among different species through the analysis of sequences of biological data such as DNA. These relationships are usually represented using phylogenetic trees, ... -
Applications of the Sinkhorn-Knopp algorithm for phylogenetic inference
(Universitat Politècnica de Catalunya, 2016-01)
Projecte Final de Màster Oficial
Accés obertEn aquest treball s'estudia l'algorisme de Sinkhorn-Knopp i les seves aplicacions pel disseny de mètodes de reconstrucció filogenètica. Es dissenyen tres mètodes filogenètics ("Crossing", "$\delta$-crossing$ i Dist-crossing) ... -
Generating Lie Markov models with prescribed symmetry
(Universitat Politècnica de Catalunya, 2012-11)
Projecte Final de Màster Oficial
Accés obertRecent works discuss the importance of the multiplicative closure of the Markov models used in phylogenetics. A sufficient condition is requiring the set of rate-matrices of the model to form a Lie algebra. In this work, ... -
Multilinear algebra for phylogenetic reconstruction
(Universitat Politècnica de Catalunya, 2015-07)
Projecte Final de Màster Oficial
Accés obertPhylogenetic reconstruction tries to recover the ancestral relationships among a group of contemporary species and represent them in a phylogenetic tree. To do it, it is useful to model evolution adopting a parametric ... -
Performance of subflattening matrices for phylogenetic tree reconstruction
(Universitat Politècnica de Catalunya, 2023-06)
Treball Final de Grau
Accés obertEn aquest projecte s'estudia a fons la definició de matrius "subflattening", i es proporcionen detalls addicionals que faltaven a la demostració del Teorema d'en Jeremy G. Sumner. Concretament, s'estudia en detall el cas ... -
The embedding problem for Markov matrices
(Universitat Politècnica de Catalunya, 2021-05-18)
Tesi
Accés obertThe goal of this thesis is to solve the embedding problem for Markov matrices, posed by Gustav Elfving in1937. A Markov matrix is non-negative square matrix whose rows sum to 1. We say that such a matrix M is embeddable ...
