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 17 of 17 for “"Smoothing method"”.
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Estimation and Testing Methods for Monotone Transformation Models
… as special cases. It develops a self-induced smoothing method for estimating the regression coefficients of these models, resulting in simultaneous point and variance estimations. The self-induced smoothing does not require bandwidth selection, yet provides the right amount of smoothness so …
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Evaluation of subjective forecasting in electrical utilities
… effectiveness of some mathematical forecasting methods as compared with subjective forecasting methods. The author points out that one mathematical forecasting method, triple smoothing, projects as well as the subjective forecast made by an electrical utility when forecasting long-range annual …
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Statistische Auswahl von Wortabhängigkeiten in der automatischen Spracherkennung
… A trigram language model with a standard smoothing method is extended by complex state-of-the-art language modeling techniques, including: the comparison of different smoothing methods, namely linear vs. absolute discounting, interpolation vs. backing-off, and back-off functions based on …
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A comparison of some methods of modeling baseline hazard function in discrete survival models
… of three variants of penalised regression spline methods in smoothing the baseline hazard function. Root mean squared error (RMSE) analysis suggests that generally all the smoothing methods performed better than the model with a discrete baseline hazard function. No single smoothing method …
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Word alignment and smoothing methods in statistical machine translation: Noise, prior knowledge and overfitting
… word aligner. The second discussion is about the smoothing methods for a language model and a translation model where we propose a hierarchical Pitman-Yor process-based smoothing method. The common grounds for these discussion are the examination of three exceptional cases from real-world data: …
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Distributed time-critical coordination strategies for unmanned aerial systems in cluttered environments
… path planner with a CNC-inspired path-smoothing method, and a centralized cooperative speed-assignment algorithm yields a set of C2 continuous trajectories that maintain safe separation with all uncertain obstacles and cooperating peers, meet desired mission constraints, and satisfy a …
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Nonparametric Modelling for Directional Data
… information criteria and simulation-based methods. The resultant mixture density estimators are compared with the commonly-used kernel smoothing method. Overall, nonparametric mixtures have highly competitive and sometimes superior performance to its competitors. Apart from estimating a …
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Housing demand prediction in Penang, Malaysia
… determine the headship rate. The Headship Rate Method applied to obtain the household formation. An extensive literature review was done on studies on housing demand and prediction method. A questionnaire was designed and approved by the expert before distributed to 400 households. The …
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A Smoothing Model and Its Asymptotics with Applications to Health Studies and Social Research
Smoothing is a data-driven technique in statistical modeling. It has many desirable properties, and can be applied to modeling complex data. In this dissertation, a smoothing cohort model is considered as an effective alternative to address the identifiability problem in age-period-cohort analysis, …
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Studies in the theory of solids
… sandwich reflectivity. computed by using a method which considers only single reflections of the electron by sheets of atoms in the solid, can be directly compared with the slowly varying. surface dependent features in the data. To concentrate on these fractures of the data. the approximate …
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Improving probabilistic hazard forecasts in volcanic fields. Application to Harrat Rahat, Kingdom of Saudi Arabia
… than just uncertain, results. Novel quantitative methods were developed to address three major complexities noted within volcanic fields: (1) multiple-vent eruptions, (2) hidden eruptive centres, and (3) the relationship of volcanism to geological, geophysical, and geographical ancillary data. …
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A Spectral Element Method for Viscoelastic Fluid Flow
… approximation in the element interface, a smoothing technique is developed to calculated the first derivative of the approximations by using only the adjacent sub-element information. The nonlinear convective terms are calculated by the smoothing method in the governing equations. A new …
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CFD-DEM MODELLING OF PARTICLE-GAS REACTIVE FLOWS AND ITS APPLICATION IN BLAST FURNACE REGIONS
… computational fluid dynamics-discrete element method (rCFD-DEM) featuring two state-of-the-art techniques - coarse-grained method and smoothing method is developed to describe raceway dynamics and coke combustion in a three-dimensional (3D) industrial-scale BF. The typical phenomena are …
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A Parallel Boundary Conforming Method on Adaptive Moving Meshes for Multiphase Flows
… presents a novel parallel boundary conforming method for simulating two-dimensional incompressible flows on adaptive moving unstructured meshes. The proposed method is especially helpful for studying immiscible multiphase flow problems as the interfaces are represented explicitly by mesh lines, …
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CFD-DEM modelling of liquid-solid-gas flow in rotary drums and an application in solar panel leaching
… computational fluid dynamics-discrete element method (CFD-DEM) coupled with the volume of fluid (VOF) to describe the complex behaviours of liquid-nonspherical-particle-gas flow. Then, it is particularly applied to the application of the silver leaching process in a rotary drum - a crucial step …
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Molecular phylogeny, temporal patterns of lineage diversification and phylogeography of the surgeonfish genus Naso (Acanthuridae)
… estimate divergence times (by nonparametric rate smoothing method) of the nodes, giving rise to extant Naso species using the combined sequence data (from all loci). The reconstruction of the pattern of divergence of extant species indicates two sequences of events. The basal species characterised …
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Monitoring for Chronic Wasting Disease in Mule Deer and White-Tailed Deer at Wind Cave National Park: Investigating an Emerging Epizootic
… deer mortalities; and 4) examine sample size and smoothing parameters on home ranges from GPS collars on home ranges for mule deer and coyotes (Canis latrans). For objective 1, we collected data between January 2003 and January 2005 on white-tailed deer in southeast and southwest Minnesota and …