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 15 of 15 for “"random forest analysis"”.
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Synthesis and applications of oligonucleotide-bound alginate hydrogels
… yielded higher classification accuracy using random forest analysis, when integrating CD and thermal melt data. Concurrently, the potential of covalently bound alginate hydrogels for small interfering RNA (siRNA)-mediated gene silencing was evaluated. Covalent attachment resulted in a tenfold …
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Comparing estimates of fishing effort and lake choice derived from aerial creel surveys and smartphone application data in Ontario, Canada
… poorly explained by lake characteristics in a random forest analysis (7.66% vs. 29.52% for creels). Explained variation improved when I included more lakes, but province-wide effort prediction did not agree with those based on creel data. I attribute these inconsistent results to low app data …
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Atmospheric and spatial drivers of egg abundance in beach nesting shorebirds across an urban-coastal gradient of the Rockaway Peninsula, New York
… complementary modeling approaches, including Random Forest analysis. Overall, thermal conditions and coastal microtopography emerged as key determinants of reproductive patterns, highlighting the sensitivity of shorebirds to warming and the importance of maintaining suitable nesting habitat in …
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Mapping Elaeagnus Umbellata on Coal Surface Mines using Multitemporal Landsat Imagery
… for mapping and characterizing land cover and forest recovery on former coal surface mines. I performed a multitemporal classification using a random forest analysis to map autumn olive on former and current surface coal mines in southwest Virginia. Imagery from the Operational Land Imager on …
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Optimizing a long-term monitoring program to track toxic cyanobacteria blooms in a Great Lakes estuary
… at eight spatially heterogeneous SLRE stations. Random forest analysis in conjunction with constrained ordination were used to examine relationships between phytoplankton and water quality. Warm, late-summer temperatures were an important predictor of cyanobacteria, but nitrogen and other …
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The diversity and functioning of coastal microbial communities
… in greater detail. In order to do this kind of analysis, large datasets are needed to properly capture the nuances of microbial communities. The CBESS (Coastal Biodiversity and Ecosystem Service Sustainability) dataset used here is one such dataset. Random forest analysis, a type of machine …
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Genetic and Morphological Analyses of Three Freshwater Mussel Species in Isolated River Drainages Across Appalachia
… of genetic diversity, and morphometric analysis, and to screen for cryptic biodiversity of populations of the Cambarunio iris species complex in the Upper Tennessee, Cumberland, and Green River drainages. I used the mitochondrial DNA (mtDNA) gene from the first subunit of the NADH …
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Blunt Force Trauma to the Ribs: Creating Predictive Models
… anthropologists receive more requests for trauma analysis than any other aspect of the biological profile. Blunt force trauma to the ribs is some of the most common trauma recorded in a medical examiner's setting, however the structural complexity of ribs make it difficult to move beyond …
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Yellow perch in Lake Michigan: investigating size-selective mortality and alternative estimators of age
… objective predictor of yellow perch age using random forest analysis. My investigation provided significant evidence of size-selective mortality beyond the first year of life and size-specific growth during the first year, overwinter period. Sagittal otolith weight provided accurate estimates …
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Forest recovery trends following an unprecedented mountain pine beetle outbreak in the southern Rocky Mountains
… the structure and composition of lodgepole pine forests will look like as they recover. I used Forest Inventory and Analysis data collected by the US Department of Agriculture Forest Service, together with hierarchical cluster analysis, to separate 626 subplots into unique forest type groups …
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Constraining the Quenching Mechanisms in Galaxies
… properties of 1862 MaNGA galaxies, and I use a random forest analysis to explore the relationship between galaxy kinematics and quenching. I find that the average velocity dispersion is overwhelmingly the most important kinematic parameter for predicting galaxy quenching. Furthermore, a full and …
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Identification, Characterization, and Functional Analysis of Terpenoid Specialized Metabolism in Switchgrass (Panicum virgatum) and Carrot (Daucus carota)
… (DcTPS11), (DcTPS30) and -terpinolene (DcTPS03). Random forest analysis of colored carrot volatiles revealed that nine terpene compounds are sufficient for distinguishing the flavor and aroma of raw colored carrots. Interestingly, accumulation of specific terpene compounds rather than chemical …
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Development of Molecular and Morphological Resources for Identification and Monitoring of Freshwater Mussel Species in the Genera Fusconaia and Pleurobema in the Green River, Kentucky
… among these species. Using Canonical Variate Analysis, I found discernable morphological differences between the investigated species of Fusconaia and Pleurobema. The two Fusconaia species were morphologically different from the Pleurobema species. However, the Canonical Variate Analysis did …
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Studies on the diversity and distribution of marine ichthyoparasites in Southern Africa
… in the long-lived larval parasite assemblage. A ‗Random Forest‘ analysis selected Anisakis sp. and M. uncinatus as potential biological tags for assessing the population structure of snoek in the Benguela ecosystem. GAMMs with binomial and Tweedie error distributions were used to respectively …