Results 31 to 40 of about 3,867,667 (297)
Seven largest trees pack [PDF]
Opuscula MathematicaThe Tree Packing Conjecture (TPC) by Gyárfás states that any set of trees \(T_2,\dots,T_{n-1}, T_n\) such that \(T_i\) has \(i\) vertices pack into \(K_n\). The conjecture is true for bounded degree trees, but in general, it is widely open.
Maciej Cisiński, Andrzej Żak
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Jurnal Teknologi Informasi dan Pendidikan, 2023 The COVID-19 pandemic has had a significant impact on various economic sectors in Indonesia, including the education system. Consequently, the educational landscape has undergone substantial changes, such as the shift from traditional classroom ...
Imelda Muluk
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Deep Tree Net-Vector of Locally Aggregated Descriptor (VLAD) Model
IEEE Access, 2019 In this work, we combined both a tree and a NetVLAD (vector of locally aggregated descriptors) in order to design new deep model. In developing this model, we studied the impact of tree hyperparameters and found that branch factors had major effects on ...
Abduljawad A. Amory +2 more
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Tree contractions and evolutionary trees [PDF]
SIAM Journal on Computing, 1997 An evolutionary tree is a rooted tree where each internal vertex has at least two children and where the leaves are labeled with distinct symbols representing species. Evolutionary trees are useful for modeling the evolutionary history of species. An agreement subtree of two evolutionary trees is an evolutionary tree which is also a topological subtree
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Forest management intensity affects aquatic communities in artificial tree holes [PDF]
, 2016 Forest management could potentially affect organisms in all forest habitats. However, aquatic communities in water-filled tree-holes may be especially sensitive because of small population sizes, the risk of drought and potential dispersal limitation. We
Gossner, Martin M. +6 more
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Chromatic number of super vertex local antimagic total labelings of graphs
Electronic Journal of Graph Theory and Applications, 2021 Let G(V,E) be a simple graph and f be a bijection f : V ∪ E → {1, 2, …, |V|+|E|} where f(V)={1, 2, …, |V|}. For a vertex x ∈ V, define its weight w(x) as the sum of labels of all edges incident with x and the vertex label itself. Then f is called a super
Fawwaz F. Hadiputra +4 more
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Zeroth-order general Randić index of trees with given distance k-domination number
Electronic Journal of Graph Theory and Applications, 2022 The zeroth-order general Randić index of a graph G is defined as Ra(G)=∑v ∈ V(G)dGa(v), where a ∈ ℝ, V(G) is the vertex set of G and dG(v) is the degree of a vertex v in G.
Tomas Vetrik +2 more
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Trees within trees II: Nested fragmentations [PDF]
Annales de l'Institut Henri Poincaré, Probabilités et Statistiques, 2020 Similarly as in (Blancas et al. 2018) where nested coalescent processes are studied, we generalize the definition of partition-valued homogeneous Markov fragmentation processes to the setting of nested partitions, i.e. pairs of partitions $( , )$ where $ $ is finer than $ $.
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Taxonium, a web-based tool for exploring large phylogenetic trees
eLife, 2022 The COVID-19 pandemic has resulted in a step change in the scale of sequencing data, with more genomes of SARS-CoV-2 having been sequenced than any other organism on earth.
Theo Sanderson
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Zootaxa, 2014 Are birds dinosaurs? Answers to this question yield various responses, depending on a particular viewpoint. From the perspective of a common understanding of recent theories of the origin of birds and their potential precursor (ancestral) animals, then, yes, birds are a kind of dinosaur, having evolved from one or another non-avian dinosaur (Bostwick ...
Ebach, Malte C., Williams, DM
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