Now showing items 21-37 of 37

• #### EMtree for phylogenetic topology reconstruction on nonhomogeneous data ﻿

(2014-06-17)
Article
Open Access
• #### Genètica i geometria algebraica ﻿

(2005-03-03)
Audiovisual
Open Access
"... Les varietats algebraiques apareixen de manera natural en considerar models estadístics empleats en genòmica i filogenètica. Explicarem quina és la relació entre aquests models estadístics i la geometria algebraica. ...
• #### GenNon-h: Generating multiple sequence alignments on nonhomogeneous phylogenetic trees ﻿

(2012-08-28)
Article
Open Access
Background: A number of software packages are available to generate DNA multiple sequence alignments (MSAs) evolved under continuous-time Markov processes on phylogenetic trees. On the other hand, methods of simulating the ...
• #### Invariant versus classical quartet inference when evolution is heterogeneous across sites and lineages ﻿

(2016)
Article
Open Access
One reason why classical phylogenetic reconstruction methods fail to correctly infer the underlying topology is because they assume oversimplified models. In this article, we propose a quartet reconstruction method consistent ...
• #### Local description of phylogenetic group-based models ﻿

(2013-12)
External research report
Open Access
Motivated by phylogenetics, our aim is to obtain a system of equations that de ne a phylogenetic variety on an open set containing the biologically meaningful points. In this paper we consider phylogenetic varieties de ...
• #### Local equations for equivariant evolutionary models ﻿

(2017-07-31)
Article
Open Access
Phylogenetic varieties related to equivariant substitution models have been studied largely in the last years. One of the main objectives has been finding a set of generators of the ideal of these varieties, but this has ...
• #### Low degree equations for phylogenetic group-based models ﻿

(2015)
Article
Open Access
Motivated by phylogenetics, our aim is to obtain a system of low degree equations that define a phylogenetic variety on an open set containing the biologically meaningful points. In this paper we consider phylogenetic ...
• #### Models algebraics en filogenètica ﻿

(2005)
Article
Open Access
En aquest article fem una introducci´o a les aplicacions de la geometria algebraica en filogenetica. Gracies a que gran part dels models evolutius usats en filogenetica corresponen a varietats algebraiques, l’ideal ...
• #### Phylogenetic mixtures and linear invariants for equal input models ﻿

(2016-09-07)
Article
Open Access
The reconstruction of phylogenetic trees from molecular sequence data relies on modelling site substitutions by a Markov process, or a mixture of such processes. In general, allowing mixed processes can result in different ...
• #### Phylogenetic reconstruction using algebraic geometry ﻿

(2010-12-31)
Article
Restricted access - publisher's policy
A new approach to phylogenetic reconstruction has been emerging in the last years. Given an evolutionary model, the joint probability distribution of the nucleotides for these species satisfy some algebraic constraints ...
• #### Reconstrucción filogenética usando Geometría Algebraica ﻿

(2010)
Article
Open Access
Una nueva aproximación a la reconstrucción filogenética basada en la geometría algebraica está ganando fuerza en los últimos años. Fijado un modelo evolutivo para un conjunto de especies, las distribuciones teóricas de ...
• #### Relevant phylogenetic invariants of evolutionary models ﻿

(2010-01)
External research report
Open Access
Recently there have been several attempts to provide a whole set of generators of the ideal of the algebraic variety associated to a phylogenetic tree evolving under an algebraic model. These algebraic varieties have been ...
• #### SPIn: model selection for phylogenetic mixtures via linear invariants ﻿

(2011-10)
Article
Restricted access - publisher's policy
In phylogenetic inference, an evolutionarymodel describes the substitution processes along each edge of a phylogenetic tree. Misspecification of the model has important implications for the analysis of phylogenetic data. ...
• #### Tapas of algebraic statistics ﻿

(2018-09-01)
Article
Open Access
• #### The inertia of the symmetric approximation for low-rank matrices ﻿

(Taylor & Francis, 2017-11-10)
Article
Open Access
© 2017 Informa UK Limited, trading as Taylor & Francis Group In many areas of applied linear algebra, it is necessary to work with matrix approximations. A usual situation occurs when a matrix obtained from experimental ...
• #### The space of phylogenetic mixtures for equivariant models ﻿

(2012-11-28)
Article
Open Access
The selection of the most suitable evolutionary model to analyze the given molecular data is usually left to biologist's choice. In his famous book, J Felsenstein suggested that certain linear equations satisfied by the ...
• #### Topologia Algebraica (examen 2n quadrim) ﻿

(Universitat Politècnica de Catalunya, 2008-03-05)
Exam