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 20 of 71 for “"detection probability"”.
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Evaluating population estimates of mountain goats based on citizen science
… I used N-mixture models, which calculated detection probability through patterns of detection and non-detection to obtain estimates of abundance. Population estimates made by citizen science overlapped estimates by biologists and estimates from previous research. Density estimates from …
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Evaluating population estimates of mountain goats based on citizen science
… I used N-mixture models, which calculated detection probability through patterns of detection and non-detection to obtain estimates of abundance. Population estimates made by citizen science overlapped estimates by biologists and estimates from previous research. Density estimates from …
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Detection, habitat use, and occupancy dynamics of Black-billed Cuckoos and Yellow-billed Cuckoos in Illinois
… habitat requirements are poorly understood. Low detection and weak habitat associations could be due in part to wide-ranging movements within and between breeding seasons. I set out to examine detection probability, habitat use, and movement dynamics of both species. I performed passive and …
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Search for a Moving Target
… a Bayesian updating algorithm giving successive probability distributions of target position at intervals throughout the search. Updating allows for target movement and for negative information gained from unsuccessful search.<br/><br/>The search is conducted by taking a sequence of discrete, …
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Effect of internal solitary waves on mine detection in the western Philippine Sea east of Taiwan
… applied to determine how the IS affect the mines detection by computing the transmission loss (TL) and the ray traces of rand-dependent and range independent cases during the IS period. The maximum TL difference is 20 dB. As a result, the mine detection probability will dramatically be reduced to …
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Beamforming and scan pattern performance evaluation of rotating maritime multi-beam phased array surveillance radar
… different beamforming and scan patterns on the detection performance of different possible targets in the maritime environment per antenna rotation. MATLAB, with various Phased Array Toolbox objects, was used as the platform to create the simulation model. A wide variety of variables were …
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Distribution and Population Characterization of Clinch Dace (Chrosomus sp. cf. saylori) in the Upper Clinch River System, Virginia
… species. Population monitoring must balance high detection probability with low risk of injury to captured individuals. I sampled 98 sites in 2014 and 2015 within the putative range of Clinch Dace to refine estimates of its distribution. I sampled 70 of the 98 sites with multiple gears and …
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The detection of gravitational microlensing anomalies
The detection and measurability of microlensing anomalies including planet detection, resolved source, blending and parallax effects are investigated by way of an extensive computer simulation as a function of the observation strategy. The most efficient strategy has a planet detection probability …
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Weak GPS Signal Acquisition Using Antenna Diversity
… both theoretically and using real data. Overall detection probability, probability of false alarm and acquisition time are investigated in terms of the mean and variance values. Optimal values for the integration time as well as combination of coherent and non-coherent integration that minimizes …
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Towards the ecology and conservation of sand lizard (Lacerta agilis) populations in Southern England
… by investigating factors which influence the detection probability of this species and through exploration of population monitoring and estimation methods.<br/><br/>The detection rate of both male and female lizards in a captive population was found to be heavily dependent on their sex and …
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Applications of Search Theory to Coordinated Searching by Unmanned Aerial Vehicles
… target images and understanding the target detection probability. Image skew is then incorporated into the detection probability model, and a function is derived that predicts target detection as a function of distance. In order to measure the effectiveness of search algorithms with this …
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The smooth is better than the rough : an exploitation of reporting rate information in Southern Africa bird atlas data
… takes into account the likelihood of species detection in a given area. Our main objective in this thesis is to explore methods for analysing and summarising reporting rate data. The observed reporting rate data are subject to bias due to differential sampling effort and observer errors. We …
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Nesting Ecology Of Red-Headed Woodpeckers (Melanerpes Erythrocephalus) In Central Minnesota
… model to estimate annual apparent survival and detection probability. In the most parsimonious model, apparent survival varied by year and detection probability differed by sex. Annual apparent survival ranged from 0.38-0.70 among years, and averaged lower than other apparent survival studies. …
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Propagation and monitoring of freshwater mussels released into the Clinch and Powell rivers, Virginia and Tennessee
… restoration and recovery. To facilitate the detection of released mussels, I applied Passive Integrated Transponder tags to laboratory-produced juveniles of the endangered Cumberlandian combshell (Epioblasma brevidens) and released them near Brooks Bridge, Powell River. The detection …
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Monitoring amphibian populations and the status of wood frogs and boreal chorus frogs in the Kawuneeche Valley of Rocky Mountain National Park
… used closed capture-recapture models to estimate detection probability and evaluate potential sources of variation in the detectability of wood frog (Rana sylvatica) egg masses. Model selection results and model-averaged estimates provided evidence that detection probability varied between years …
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Assessment of mudpuppy (Necturus maculosus) presence along the St. Clair-Detroit River System using environmental DNA and occupancy modeling
… occupancy modeling were used to determine best detection practices for this cryptic species. Mudpuppy eDNA was detected at all known mudpuppy sites with the addition of one site. Occupancy was highest at shoreline restoration sites, while reef restoration did not affect mudpuppy occupancy. …
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EFFECTS OF THERMAL STRESS ON SURVIVORSHIP OF BROOK TROUT (SALVELINUS FONTINALIS) IN ADIRONDACK LAKES
… parameters related to survival, abundance, detection probability and movement under contrasting thermal conditions. Results from candidate model set comparisons support the hypotheses that brook trout living in unstratified lakes experienced reduced survivorship in hot, dry years, while fish …
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On Deniable Computation and Sublinear Graph Algorithms
… by a fixed polynomial, independent of the detection probability achieved by the scheme. The running time of our encryption algorithm depends on the inverse of the detection probability, thus the scheme falls short of achieving simultaneously compactness, negligible deniability and …
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Evaluating Intrusion Detection Systems for Energy Diversion Attacks
… tools for predictive maintenance and anomaly detection systems in electricity industry. On the other hand, private profit-maximizing firms (distribution utilities) need accurate assessment of the value of these tools to justify investment in collection and processing of significant amount of …
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