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Some Developments in 'Distance Sampling'
Biometrics, 1967Frequency distributions of the distance from a randomly located point to the nearest (or nth nearest) individual plant or animal are described. Results applicable to systematic and contagious (negative binomial) distributions are derived as supplements to the considerable existing literature on randomly distributed individuals.
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Designing Distance Sampling Experiments
2015For most of this book, we assume that the main objective is to estimate abundance of the population of interest. Sometimes, we might instead wish to assess the effects (if any) of a management regime or a development on population densities. For example, does spraying a forest block with pesticide to eradicate an insect pest have a detrimental effect ...
S. T. Buckland +3 more
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Introduction to Distance Sampling
2001Abstract Offers a comprehensive introduction to distance sampling, a statistical method used by many biologists and conservationists to estimate animal abundance. The text discusses point transect sampling and line transect sampling and also describes several other related techniques.
S T Buckland +5 more
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Spatial distance sampling models
2004Abstract Increasingly, wildlife managers wish to extract more than just an abundance estimate from their sightings surveys. They frequently need to relate animal density to spatial variables reflecting topography, habitat, and other factors that affect the animals’ environment.
S L Hedley, S T Buckland, D L Borchers
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Planetary Shadow-Aware Distance Sampling
2022Carl Breyer and Tobias ...
Breyer, Carl, Zirr, Tobias
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Adaptive distance sampling surveys
2004Abstract Distance sampling is especially effective for surveying objects that are sparsely distributed through a large region. However, if those objects tend to occur in a relatively small number of patches, standard distance sampling may yield both a low number of detections (because much effort is expended away from these patches) and ...
J H Pollard, S T Buckland
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Field modeling with sampled distances
Computer-Aided Design, 2006Traditional mesh-based approaches to the modeling and analysis of physical fields within geometric models require some form of topological reconstruction and conversion in the mesh generation process. Such manipulations tend to be tedious and error-prone manual processes that are not easily automated.
Michael Freytag +2 more
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Perpendicular Distance Models for Line Transect Sampling
Biometrics, 1985Perpendicular distance line transect models are examined to assess whether any single model can provide a general procedure for analysing line transect data. Of the two-parameter models considered, the hazard-rate model appears promising, whereas the exponential power series and exponential quadratic models do not.
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Static sampling distance relays
Proceedings of the Institution of Electrical Engineers, 1968A sampling technique has been developed which allows a comparison of instantaneous values derived at different instants of time, thereby dispensing with the need to phase-shift or mix signals derived from the primary line quantities. Both amplitude and phase comparisons are used to derive a variety of impedance characteristics.
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Revisiting adaptively sampled distance fields
Proceedings XIV Brazilian Symposium on Computer Graphics and Image Processing, 2002Implicit surfaces are a powerful shape description for many applications in computer graphics. An implicit surface is defined by a function f:R/sup 3//spl rarr/R as the set of points satisfying f(p)=0. Implicit representation becomes more effective when f is a signed distance function, i.e., when |f| gives the distance to the closest point on the ...
L.H. de Figueiredo +2 more
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