Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 16 of 16 for “"Species classification"”.
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Radical Pluralism, Ontological Underdetermination, and the Role of Values in Species Classification
… role in the construction and evaluation of species classifications. The arguments for this claim will be presented over the course of five chapters. These are divided into two main parts; part one, which consists of the two first chapters, presents an argument for a radical form of species …
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Fusion Approaches to Individual Tree Species Classification Using Multi-Source Remotely Sensed Data
Tree species information plays essential roles in urban ecological management and sustainable development, and thus tree species classification has been an active research topic over the years. This study investigated fusion approaches deployed with Support Vector Machine (SVM) and Random Forest …
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The discrete wavelet transform as a precursor to leaf area index estimation and species classification using airborne hyperspectral data
… analysis in three different applications (1) classification of three pine species (Pinus spp.), (2) estimation of leaf area index (LAI) using an empirically-based model, and (3) estimation of LAI using a physically-based model. For pine species classification, different sets of Haar wavelet …
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The spatial autocorrelation of individual tree characteristics in loblolly pine stands
… of discrete tree characteristics including the species, product, and defect classifications. With the exception of the species classification, none of the discrete tree characteristics examined showed any evidence of significant (α = 0.05) levels of spatial autocorrelation in loblolly pine …
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Exploring Hyperspectral and Very High Spatial Resolution Imagery in Vegetation Characterization
… profiles to achieve high accuracy in tree species classification; and 3) evaluation of canopy health state for Emerald Ash Borer (EAB) infestation assessment by intelligent combination of multi-sourced data.
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Mapping vegetation with remote sensing and GIS data using object-based analysis and machine learning algorithms
… datasets for identifying individual tree species. These datasets include Quickbird, LiDAR, and GIS derived terrain data. Improvements in tree species classification were obtained and the best data combination was terrain context (based on slope, elevation, and wetness), tree height, canopy …
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From Traditional Morphology to Genomes and Machine Learning: Navigating Taxonomic Uncertainties in Southeast Asian Agamids
Classifying species, or the process of identifying, naming, and grouping organisms based on shared characteristics and evolutionary relationships, is critical in many aspects of biology. Without species classification, it would be difficult, if not impossible, for us to understand Earth’s …
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Combined use of airborne laser scanning and hyperspectral imaging for forest inventories
… trunk location, height, basal area, crown area, species, etc..) from the combination of Airborne Laser Scanning (ALS) and Hyperspectal Imaging (HI). The research is centered around three main topics: the development of new individual tree segmentation algorithms, the assessment of direct and …
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Modulation of drug transport by citrus fruit juices
… pummelo are classified under the neohesperidosyl species based on dominant flavonoid pattern, while lime and lemon belong to the rutinosyl species. Classification of these fruits based on taxonomy yielded parallel groupings. Orange belongs to the same taxonomic family as grapefruit and pummelo, …
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Improving the efficiency and accuracy of nocturnal bird Surveys through equipment selection and partial automation
… ensuring their protection and conservation. Many species are active at night and surveys are required to understand the implications of proposed developments such as towers and reduce possible conflicts with these structures. Night vision devices are commonly used in nocturnal surveys, either to …
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Poilsio laikas ir jo rūšys /
… The second chapter examines the rest of species classification according to various criteria, overview of the main types of rest regulatory aspects and identified the individual rest kinds of regulatory problems. The third chapter deals with special leave in place the rest of the time in …
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Innovations in detecting food fraud using mass spectrometric platforms and chemometric modelling
… was used to determine the feasibility of fish species identification. Five white fish species (cod, coley, haddock, pollock and whiting) were analysed using an electrosurgical knife coupled to a quadrupole time-of-flight mass spectrometer (QTof). Principal component analysis (PCA) and linear …
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Data driven estimation of soil and vegetation attributes using airborne remote sensing
… using a feature based data fusion approach. Tree species classification from hyperspectral data is used to develop a novel ellipsoidal ‘tree shaped’ voxel approach for characterizing the LAD of individual trees in a riparian forest setting. We found that the tree shaped voxels represents a more …
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High-resolution spatio-temporal quantification of fish predator-prey interactions over ecosystem scales with multispectral underwater sensing and optimality of human visual perception with natural daylight
… is needed to assess the individual fish species survivability in such conditions. The increasing use of computer modeling and simulations based on significantly under-sampled data of the marine environment, however, leads to unconstrained and potentially unstable predictions of key …
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Sensing animal group behavior and bio-clutter in the ocean over continental shelf scales
… their physiological characteristics to enable species classification, and (2) remotely assess shoaling populations and quantify their group behavior in a variety of oceanic ecosystems. Shoal dynamics is studied by developing a novel Minimum Energy Flow (MEF) method to extract velocity and force …