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In phylogenetics, tree-based networks are used to model and visualize the evolutionary history of species where reticulate events such as horizontal gene transfer have occurred. Formally, a tree-based network $N$ consists of a phylogenetic…

离散数学 · 计算机科学 2020-08-21 Jonathan Klawitter , Peter Stumpf

Phylogenetic network is an evolutionary model that uses a rooted directed acyclic graph (instead of a tree) to model an evolutionary history of species in which reticulate events (e.g., hybrid speciation or horizontal gene transfer)…

种群与进化 · 定量生物学 2023-12-01 Yufeng Wu , Louxin Zhang

Describing a complex system is in many ways a problem akin to identifying an object, in that it involves defining boundaries, constituent parts and their relationships by the use of grouping laws. Here we propose a novel method which…

Semi-directed networks provide a graphical structure for describing the evolutionary history of organisms in the presence of hybridization. We introduce two algorithms for reconstructing semi-directed level-1 phylogenetic networks from…

基因组学 · 定量生物学 2025-07-23 Sophia Huebler , Rachel Morris , Joseph Rusinko

Improvements in sequencing technologies and reduced experimental costs have resulted in a vast number of studies generating high-throughput data. Although the number of methods to analyze these "omics" data has also increased, computational…

分子网络 · 定量生物学 2017-09-19 Richard R. Rodrigues , Natalia Shulzhenko , Andrey Morgun

Phylogenetic networks are a type of leaf-labelled, acyclic, directed graph used by biologists to represent the evolutionary history of species whose past includes reticulation events. A phylogenetic network is tree-child if each non-leaf…

组合数学 · 数学 2017-11-27 Magnus Bordewich , Katharina T Huber , Vincent Moulton , Charles Semple

An important problem in phylogenetics is the construction of phylogenetic trees. One way to approach this problem, known as the supertree method, involves inferring a phylogenetic tree with leaves consisting of a set $X$ of species from a…

种群与进化 · 定量生物学 2017-11-21 Katharine T. Huber , Vincent Moulton , Charles Semple , Taoyang Wu

Rooted phylogenetic networks provide an explicit representation of the evolutionary history of a set $X$ of sampled species. In contrast to phylogenetic trees which show only speciation events, networks can also accommodate reticulate…

组合数学 · 数学 2021-01-01 Peter L. Erdos , Charles Semple , Mike Steel

Real networks exhibit nontrivial topological features such as heavy-tailed degree distribution, high clustering, and small-worldness. Researchers have developed several generative models for synthesizing artificial networks that are…

社会与信息网络 · 计算机科学 2014-02-04 Sadegh Motallebi , Sadegh Aliakbary , Jafar Habibi

Phylogenetic networks describe the evolution of a set of taxa for which reticulate events have occurred at some point in their evolutionary history. Of particular interest is when the evolutionary history between a set of just three taxa…

种群与进化 · 定量生物学 2024-09-27 Shelby Cox , Elizabeth Gross , Samuel Martin

Tree-based phylogenetic networks, which may be roughly defined as leaf-labeled networks built by adding arcs only between the original tree edges, have elegant properties for modeling evolutionary histories. We answer an open question of…

We consider the importance of different utterances in the context for selecting the response usually depends on the current query. In this paper, we propose the model TripleNet to fully model the task with the triple <context, query,…

计算与语言 · 计算机科学 2019-11-05 Wentao Ma , Yiming Cui , Nan Shao , Su He , Wei-Nan Zhang , Ting Liu , Shijin Wang , Guoping Hu

Phylogenetic networks are used to represent the evolutionary history of species. Recently, the new class of orchard networks was introduced, which were later shown to be interpretable as trees with additional horizontal arcs. This makes the…

组合数学 · 数学 2023-05-09 Leo van Iersel , Mark Jones , Esther Julien , Yukihiro Murakami

Variants of Triplet networks are robust entities for learning a discriminative embedding subspace. There exist different triplet mining approaches for selecting the most suitable training triplets. Some of these mining methods rely on the…

机器学习 · 统计学 2021-11-05 Milad Sikaroudi , Benyamin Ghojogh , Fakhri Karray , Mark Crowley , H. R. Tizhoosh

Phylogenetic networks generalize phylogenetic trees by allowing the modelization of events of reticulate evolution. Among the different kinds of phylogenetic networks that have been proposed in the literature, the subclass of binary…

数据结构与算法 · 计算机科学 2020-07-01 Gabriel Cardona , Joan Carles Pons , Celine Scornavacca

Combining a set of phylogenetic trees into a single phylogenetic network that explains all of them is a fundamental challenge in evolutionary studies. Existing methods are computationally expensive and can either handle only small numbers…

种群与进化 · 定量生物学 2023-04-07 Giulia Bernardini , Leo van Iersel , Esther Julien , Leen Stougie

Phylogenetic networks extend phylogenetic trees to model non-vertical inheritance, by which a lineage inherits material from multiple parents. The computational complexity of estimating phylogenetic networks from genome-wide data with…

种群与进化 · 定量生物学 2022-06-28 Jingcheng Xu , Cécile Ané

treePL uses a penalised likelihood approach to produce a dated phylogeny in a maximum likelihood framework. Since its publication in 2012, few resources have been developed to explain how to use it properly. In this guide, I provide a…

种群与进化 · 定量生物学 2020-08-19 Kévin J. L. Maurin

Rooted triples, rooted binary phylogenetic trees on three leaves, are sufficient to encode rooted binary phylogenetic trees. That is, if $\mathcal T$ and $\mathcal T'$ are rooted binary phylogenetic $X$-trees that infers the same set of…

组合数学 · 数学 2020-12-07 Charles Semple , Gerry Toft

A large class of phylogenetic networks can be obtained from trees by the addition of horizontal edges between the tree edges. These networks are called tree based networks. Reticulation-visible networks and child-sibling networks are all…

种群与进化 · 定量生物学 2015-09-09 Louxin Zhang