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Benchmarking airborne laser scanning tree segmentation algorithms in broadleaf forests shows high accuracy only for canopy trees Ghent University
Individual tree segmentation from airborne laser scanning data is a longstanding and important challenge in forest remote sensing. Tree segmentation algorithms are widely available, but robust intercomparison studies are rare due to the difficulty of obtaining reliable reference data. Here we provide a benchmark data set for temperate and tropical broadleaf forests generated from labelled terrestrial laser scanning data. We compared the ...
Exploring search space trees using an adapted version of Monte Carlo tree search for combinatorial optimization problems Ghent University KU Leuven
In this article we propose a heuristic algorithm to explore search space trees associated with instances of combinatorial optimization problems. The algorithm is based on Monte Carlo tree search, a popular algorithm in game playing that is used to explore game trees and represents the state-of-the-art algorithm for a number of games. Several enhancements to Monte Carlo tree search are proposed that make the algorithm more suitable in a ...
A dataset of tree heights in mangrove and non-mangrove trees in Malaysia derived from multiple measurement methods Vrije Universiteit Brussel
The dataset contains tree height data collected in 200 mangrove and non-mangrove trees sampled in various sites in Malaysia. Different height measurement methods were performed, including visual measurements (stick, thumb rule) and precision field instruments (clinometer, laser rangefinder and altimeter), which were compared against benchmark values obtained using an unmanned aerial vehicle (UAV) and a Leica distometer. The core data have ...
Tree species diversity impacts average radial growth of beech and oak trees in Belgium, not their long-term growth trend Ghent University KU Leuven
BackgroundEnvironmental change has resulted in changes in forest growth in Europe during the last century. This has consequences for the products and services delivered by forest. Mixing tree species is often proposed as a strategy to deal with the consequences of climate change. Diversifying forests is believed to result in higher productivity and increased growth stability. Tree species diversity is therefore expected to affect long-term ...
On the maximum stable throughput of tree algorithms with free access University of Antwerp
A simple numerical procedure is presented to determine the maximum stable throughput (MST) of various tree algorithms with free access by defining an associated multitype branching process such that the criticality of the branching process corresponds to the stability of the tree algorithm. More precisely, a bisection algorithm is proposed that only requires the computation of the dominant eigenvalue of the expectation matrix of the branching ...
Fast and sensistive on-site isothermal assay (LAMP) for the detection of three fruit tree phytoplasmas Research Institute for Agriculture, Fisheries and Food
Candidatus Phytoplasma mali (AP), Candidatus Phytoplasma pyri (PD) and Candidatus Phytoplasma prunorum (ESFY) are three of the major fruit tree pathogens. They are closely related wall‐less predominantly phloem residing prokaryotes sharing more than 97.5% sequence identity in the 16S rRNA
gene. This 16S region has been used in many generic, AP group specific and species specific PCR based diagnostic methods for the detection of AP, PD and ...
gene. This 16S region has been used in many generic, AP group specific and species specific PCR based diagnostic methods for the detection of AP, PD and ...
Offering Guidance and Learning to Prescribers to Initiate Parenteral Nutrition using a Validated Electronic Decision TREE (OLIVE TREE) KU Leuven
Parenteral nutrition (PN) is recommended in patients nutritionally at risk and unable to receive oral or enteral nutrition. A standardized electronic PN order format could enhance appropriate PN prescribing. We developed the OLIVE TREE (Offering guidance and Learning to prescribers to Initiate PN using a Validated Electronic decision TREE), embedded in our electronic health record. We aimed to evaluate its validity and impact on physicians' ...
Fast and sensistive on-site isothermal assay (LAMP) for diagnosis and detection of three fruit tree phytoplasmas Research Institute for Agriculture, Fisheries and Food
Over the years, realtime PCR outflanked endpoint PCR in phytopathogen
diagnostics, mainly because of the increase in sensitivity and timesaving
aspects of the technique. However, a time consuming 16S rRNAbased
nested PCR method is still the gold standard for phytoplasma diagnosis. This is also the case for phytoplasma detection in Malus, Pyrus and Prunus, the three main host plants of apple proliferation (AP), pear decline ...
diagnostics, mainly because of the increase in sensitivity and timesaving
aspects of the technique. However, a time consuming 16S rRNAbased
nested PCR method is still the gold standard for phytoplasma diagnosis. This is also the case for phytoplasma detection in Malus, Pyrus and Prunus, the three main host plants of apple proliferation (AP), pear decline ...
Long-term fertilization determines different metabolomic profiles and responses in saplings of three rainforest tree species with different adult canopy position University of Antwerp
Background Tropical rainforests are frequently limited by soil nutrient availability. However, the response of the metabolic phenotypic plasticity of trees to an increase of soil nutrient availabilities is poorly understood. We expected that increases in the ability of a nutrient that limits some plant processes should be detected by corresponding changes in plant metabolome profile related to such processes. Methodology/Principal findings We ...