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 21 for “"Mallows"”.
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ARCHAEOLOGICAL SITE FORMATION OF THE “SEA SCOUT WRECK”: MALLOWS BAY, NANJEMOY, MARYLAND
… Sea Scout Wreck, located in the recently formed Mallows Bay-Potomac River National Marine Sanctuary (Nanjemoy, Maryland). To achieve this, historical and archaeological data were used to create three-dimensional (3D) models that represent key stages of the vessel's use-life and to document the …
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North Bend: Archaeological Site Formation and the Hough Type at Mallows Bay-Potomac River National Marine Sanctuary
… historically significant vessel abandoned within Mallows Bay-Potomac River National Marine Sanctuary. The research centers around understanding the disintegration process for North Bend and identifies factors influencing its current preservation and future site formation. The research draws upon …
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Nonparametric statistical procedures for therapeutic clinical trials with survival endpoints
… based on the Kolmogorov-Smirnov distance and L2 mallows disatnce. To implement the proposed tests, nonparametric bootstrap method is employed to approximate the distributions of the test statistics to construct the corresponding bootstrap confidence interval procedures. Monte-Carlo simulations …
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The use of nonnull models for ranks in nonparametric statistics
… of dependence. One such model popularized by Mallows (1957, Annals of Mathematical Statistics) uses a one-parameter exponential family model with the canonical sufficient statistic being equivalent to Kendall's tau."
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On Some Aspects of Model Selection Variability
… methods --- the hypothesis testing, the Mallows' $C_p$, AIC, BIC and LASSO --- are compared in terms of the effects on the accuracy of bagging estimators in the context of multivariate linear regression. The confidence region and its coverage probability are also estimated for the bagging …
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A comparison of three prediction based methods of choosing the ridge regression parameter k
… methods of determining k: the PRESS statistic, Mallows' C<sub>k</sub>. statistic, and DF-trace. The study compared the prediction capabilities of the three methods using data that contained various levels of both collinearity and leverage. This was completed by using a Monte Carlo experiment.
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Distributions of certain test statistics in multivariate regression
… simultaneous tests for the Cp-criterion of Mallows are constructed. Some comments on extrapolation and prediction are made. In Chapter 5 the Ridge and Principal components residuals are studied. Their use for detecting outliers, when multi-collinearity is present, is examined.
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Distribution and Soil Characteristics Associated with the Neches River Rose-Mallow (Hibiscus dasycalyx)
… variables associated with each of the rose-mallows. <em>H. dasycalyx</em> was concluded to be associated with more fertile soils and slightly more canopy coverage than <em>H. laevis</em> and <em>H. moscheutos</em>. <em>H. dasycalyx</em> was also strongly associated with a soil drainage class …
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Consumer involvement in ethnic restaurants: a measure of satisfaction/dissatisfaction
… future visitations (R² = 0.04, p<0.04, negative Mallows' Coefficient). The findings of this study contribute not only to consumer self-concept theory and satisfaction theory but also have practical implications to the ethnic restaurant industry.
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A reversal theory approach to predicting and explaining university students' attitudes and use of marijuana.
… theory (Motivational Style Profile; Apter, Mallows, & Williams, 1992), grade point average, life values, liberalism, religiosity, delinquency, creativity, attitudes toward legalization of drugs, attitudes toward marijuana, and personal drug use. The findings indicated 63.9% of those sampled …
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Prediction of a school superintendent's tenure using regression and Bayesian analyses
… the equation, statistical applications included Mallows C<sub>P</sub> for subset selection, Rousseeuw’s Least Median of Squares for outlier diagnostics, and the PRESS statistic for validation. The survey also included 24 hypothetical situations randomly selected out of a set of 290 items with …
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Optimising Outcome for Achilles Tendinopathy: An Exploration into Cognitive and Contextual Factors
Achilles tendinopathy is a debilitating condition for both active and sedentary people. Clinically it is characterised by a painful response felt in and around the tendon predominantly during tasks involving plantarflexion load; hopping for example. Whilst exercise appears to be a promising …
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Geophysical Studies of Oceanic Core Complexes: The Mid-Atlantic Ridge, 13 - 14°N
Marine geophysical studies have revealed that crustal accretion processes at mid-ocean ridges are largely dependent on the relative contribution of magmatism and tectonism to plate separation. At high levels of magmatic accretion, the ridge is associated with large amounts of surficial volcanism …
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METAL AND WOODEN SHIPWRECKS: UNDERSTANDING THE RELATIONSHIP BETWEEN HEAVY METALS, ENVIRONMENTAL FACTORS, AND MICROBIAL COMMUNITIES
Just 30 miles south of Washington D.C., Mallows Bay is an estuarine area housing nearly 200 shipwrecks, most of which have been in the area for close to 100 years and could be leaching contaminants from residual fuel and ship materials. This study examines how the wrecks, environmental factors of …
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Essays on applied econometrics
… time series scenario. To this end, I propose a Mallows model averaging autocorrelation corrected (MAC) estimator, in which the tapered estimator (McMurry and Politis, 2010) is employed as the working covariance matrix. The optimality of the proposed criterion for MAC is proved under mild …
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Classificação estrutural de proteínas por meio de aprendizado não supervisionado
… da base CATH, por meio do índice Fowlkes Mallows e da verificação de homogeneidade e completude dos grupos. Os resultados mostram a inviabilidade de classificação no nível classe, já que os índices alcançados com Fowlkes Mollows não chegaram a 60%. Por outro lado, eles indicam uma capacidade …
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Cluster-Based Bounded Influence Regression
… one-step improvement procedures based on LTS are Mallows 1-step (M1S) regression and Schweppe 1-step (S1S) regression (the current state-of-the-art method). Issues with these methods include (1) computational approximations and sub-sampling variability, (2) dramatic coefficient sensitivity with …
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An historical survey of the development of the vibraphone as an alternative accompanying instrument in jazz
Based on commercially available recordings of performances where the vibraphone alone performs the role of harmonic accompanist in the jazz ensemble, this study looks at the historical development of the use of the vibraphone as an alternative harmonic accompanying instrument. Descriptive analyses …
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The influence of various South African aggregates on the creep of concrete
The aim of this thesis is to identify which south African aggregates have an extreme effect on the creep of concrete. Eight sets of experimental data, incorporating five types of aggregate, are presented. Further secondary effects have also been identified from the experimental results. These …
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Social process and settlement form in five Vermont towns
Thesis (M.C.P.)--Massachusetts Institute of Technology, Dept. of Urban Studies and Planning; and, (M. Arch. in Advanced Studies)--Massachusetts Institute of Technology, Dept. of Architecture, 1981.
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