Results 21 to 30 of about 128,546,329 (291)
Tree in Tree: from Decision Trees to Decision Graphs
Decision trees have been widely used as classifiers in many machine learning applications thanks to their lightweight and interpretable decision process. This paper introduces Tree in Tree decision graph (TnT), a framework that extends the conventional decision tree to a more generic and powerful directed acyclic graph.
Zhu, Bingzhao, Shoaran, Mahsa
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Development of a stem taper equation and modelling the effect of stand density on taper for Chinese fir plantations in Southern China [PDF]
Chinese fir (Cunninghamia lanceolata) is the most important commercial tree species in southern China. The objective of this study was to develop a variable taper equation for Chinese fir, and to quantify the effects of stand planting density on stem ...
Aiguo Duan +3 more
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Characterization of the Populus Rab family genes and the function of PtRabE1b in salt tolerance
Background Rab proteins form the largest family of the Ras superfamily of small GTP-binding proteins and regulate intracellular trafficking pathways. However, the function of the Rab proteins in woody species is still an open question.
Jin Zhang +8 more
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The complete chloroplast genome of Salix lindleyana (salicaceae), a plateau plant species
Salix lindleyana Wallich ex Andersson is a species of genus Salix which mainly grows on mountains above 3000 m at sea level in Qinghai–Tibetan Plateau (including the Himalayas and Hengduan Mountains).
Nan Xu +3 more
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Background Quantitative reverse transcriptase polymerase chain reaction (qRT-PCR) is a rapid and sensitive approach to identify miRNA and protein-coding gene expression in plants.
Fang Tang +5 more
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Phenolic extracts from colored-walnut pellicles: antioxidant efficiency in walnut oil preservation
The phenolic extracts of walnut cultivars with a red pellicle (HWE), a purple pellicle (ZWE) and a yellow pellicle (WWE) were compared. The total contents of phenolics, flavonoids and condensed tannins, as well as in vitro antioxidant activities (ABTS ...
Feng Jin +5 more
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Tree contractions and evolutionary trees [PDF]
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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Background Most maternal health programs in low- and middle- income countries estimate gestational age to provide appropriate antenatal care at the correct times throughout the pregnancy. Although various gestational dating methods have been validated in
Isabel Fulcher +8 more
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Superoxide dismutase (SOD) is a very important reactive oxygen species (ROS)-scavenging enzyme. In this study, the functions of a Cu/Zn SOD gene (SaCu/Zn SOD), from Sedum alfredii, a cadmium (Cd)/zinc/lead co-hyperaccumulator of the Crassulaceae, was ...
Zhen Li +17 more
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Categorizing Ideas about Trees: A Tree of Trees
The aim of this study is to explore whether matrices and MP trees used to produce systematic categories of organisms could be useful to produce categories of ideas in history of science. We study the history of the use of trees in systematics to represent the diversity of life from 1766 to 1991.
Marie Fisler, Guillaume Lecointre
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