Results 11 to 20 of about 5,273,588 (373)

Canonical trees of tree-decompositions [PDF]

open access: yesJournal of Combinatorial Theory, Series B, 2022
22 ...
Matthias Hamann   +2 more
openaire   +3 more sources

A suffix tree or not a suffix tree? [PDF]

open access: yesJournal of Discrete Algorithms, 2015
In this paper we study the structure of suffix trees. Given an unlabeled tree $ $ on $n$ nodes and suffix links of its internal nodes, we ask the question "Is $ $ a suffix tree?", i.e., is there a string $S$ whose suffix tree has the same topological structure as $ $?
Starikovskaya, Tatiana A.   +1 more
openaire   +5 more sources

Tree compression with top trees [PDF]

open access: yesInformation and Computation, 2013
We introduce a new compression scheme for labeled trees based on top trees. Our compression scheme is the first to simultaneously take advantage of internal repeats in the tree (as opposed to the classical DAG compression that only exploits rooted subtree repeats) while also supporting fast navigational queries directly on the compressed representation.
Bille, Philip   +3 more
openaire   +5 more sources

Zeroth-order general Randić index of trees with given distance k-domination number

open access: yesElectronic 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
doaj   +1 more source

IQ-TREE 2: New Models and Efficient Methods for Phylogenetic Inference in the Genomic Era

open access: yesbioRxiv, 2019
IQ-TREE (http://www.iqtree.org) is a user-friendly and widely used software package for phylogenetic inference using maximum likelihood. Since the release of version 1 in 2014, we have continuously expanded IQ-TREE to integrate a plethora of new models ...
B. Minh   +6 more
semanticscholar   +1 more source

Classification Based on Decision Tree Algorithm for Machine Learning

open access: yesJournal of Applied Science and Technology Trends, 2021
Decision tree classifiers are regarded to be a standout of the most well-known methods to data classification representation of classifiers. Different researchers from various fields and backgrounds have considered the problem of extending a decision ...
Bahzad Charbuty, A. Abdulazeez
semanticscholar   +1 more source

A posteriori GPR Evaluation of Tree Stability: A Case Study in Rome (Italy)

open access: yesRemote Sensing, 2019
Following the frequent and harmful collapses of trees that have plagued the municipal territory of Rome in recent years, a protocol of understanding was initiated between the Department of Environmental Protection of ROMA CAPITALE, the American ...
Pier Matteo Barone, Carlotta Ferrara
doaj   +1 more source

A Complete Characterisation of Vertex-multiplications of Trees with Diameter 5

open access: yesTheory and Applications of Graphs, 2021
For a connected graph $G$, let $\mathscr{D}(G)$ be the family of strong orientations of $G$; and for any $D\in\mathscr{D}(G)$, we denote by $d(D)$ the diameter of $D$. The $\textit{orientation number}$ of $G$ is defined as $\bar{d}(G)=\min\{d(D)\mid D\in
Willie Wong, Eng Guan Tay
doaj   +1 more source

Simulating the Influence of Temperature on Microwave Transmissivity of Trees During Winter Observed by Spaceborne Microwave Radiometery

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
Forest transmissivity is a key parameter for understanding spaceborne and airborne observations of the Earth's land surface because not only does it influences the proportion of subcanopy upwelling microwave emission penetrating through the forest canopy,
Qinghuan Li   +3 more
doaj   +1 more source

ANALYSIS OF EFFECTS OF LEAD AND IRON TREATMENT ON EARLY SEEDLING GROWTH OF ALBIZIA LEBBECK L. (BENTH.) AND EUCALYPTUS GLOBULUS LABILL. IN VITRO STUDIES [PDF]

open access: yesJournal of Plant Development, 2022
Pollution by heavy metals in the environment is a worldwide problem. The aim of the research study was to record the effect of lead (Pb) and iron (Fe) elements on early seedling growth of Albizia lebbeck L. (Benth.) and Eucalyptus globulus Labill.
Tabinda NOREEN   +4 more
doaj   +1 more source

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