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 114 for “"ARMA"”.
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Computationally fast algorithms for ARMA spectral estimation
The high performance method for obtaining an ARMA model spectral estimate of a wide-sense stationary time series has been found to provide typically superior performance when compared to such contemporary approaches as the Box-Jenkins and maximum entropy methods. In this dissertation, fast …
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Silent leges inter arma. Von der Tat bis zur Verurteilung
Der Fall des T. Annius Milo bietet für den Lateinunterricht großes didaktisches Potenzial. Denn an seinem Beispiel kann die Lektüre eines lateinischen Textes hervorragend mit realienkundlichen Aspekten verknüpft und es können plausible Bezüge zur Gegenwart hergestellt werden. Die vorliegende …
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Practical Methods in Multivariate Time Series Analysis (Causality, Arma, Box-Jenkins)
Box and Jenkins initiated the burgeoning interest in time series model building over a decade ago when they developed several specialized techniques used in model selection, estimation, and checking. These methods have been widely applied by researchers interested in lag structures, forecasts, and …
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Rússia: os limites da arma energética no espaço pós-soviético (2000-2014)
… russo de utilizar seus recursos energéticos como arma de política externa. Utilizando o modelo de análise desenvolvido por Stegen (2011), este estudo investigou a presença de cinco etapas necessárias para o uso efetivo a arma energética: (1) controle dos recursos; (2) controle das rotas de …
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Analysis of Continuous Longitudinal Data with ARMA(1, 1) and Antedependence Correlation Structures
… the first-order autoregressive-moving average (ARMA(1, 1)) stationary time-series model. ARMA(1, 1) correlation structure is characterized by two correlation parameters and this correlation structure reduces to the AR(1), MA(1) and CS structures in special cases. Although standard efficient …
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Generalized gamma spatial ARMA conditional model for speckled data: theoretical developments and applications
… aims to advance the study of conditional spatial ARMA models for SAR image data. First, we propose a conditional spatial ARMA model based on the generalized gamma distribution, which incorporates spatial correlation and accounts for the positive and asymmetric nature of SAR data. We derive the …
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On stationary and nonstationary fatigue load modeling using autoregressive moving average (ARMA) models
… referred to as Autoregressive Moving Average (ARMA) models, while a Fourier series is used to account for the variation of the mean and variance. Due to the use of random phase angles in the Fourier series, an ensemble of mean and variance variations is obtained. The methods of nonparametric …
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Non-stationary time-dependent ARMA random vibration modeling, analysis & SHM with wind turbine applications
… non-stationary modeling methods, Time-dependent ARMA (TARMA) models are characterized by several advantages that make them strong candidates for the problem discussed in this thesis. These include the modeling parsimony, referring to the capacity of representing very complex phenomena within a …
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Tratamento não operatório em trauma abdominal penetrante por arma de fogo: uma revisão bibliográfica
… em ferimentos abdominais por projéteis de arma de fogo é um tema controverso e que ainda carece de estudos que embasem bem a conduta do cirurgião do trauma. O presente estudo busca promover uma revisão bibliográfica sobre o tratamento não operatório (TNO) de ferimentos abdominais por …
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“Alma” o “arma”, evidencia de la neutralización /l/ /r/ en la variedad dialectal andaluza de Sevilla
The Andalusian variety of Spanish is characterized by a weakened articulation (Hualde, 2005). The purpose of the present study is to analyze and characterize liquid neutralization in this variety of Spanish. This experiment specifically provides new evidence on lateral rhotic alternation, …
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Random Vibration Analysis of Higher-Order Nonlinear Beams and Composite Plates with Applications of ARMA Models
… statistical data reconstruction technique named ARMA modeling and its applications in random vibration data analysis are discussed. The model is applied to the simulation data of nonlinear beams. It is shown that good estimations of both the nonlinear frequencies and the power spectral densities …
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Análisis de las temáticas sociales presentes en la novela “El arma en el hombre” de Horacio Castellanos Moya.
… que surgieron durante y después del conflicto armado en El Salvador, y que van relacionados con el autor y la obra en estudio. En segundo lugar, el marco teórico metodológico, en este se plantean las principales teorías de lasociocrítica, el texto y sistema semióticos, estos últimos sirven para …
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Developing a hybrid hidden MARKOV model using fusion of ARMA model and artificial neural network for crude oil price forecasting
… a vital commodity. However, Hidden Markov Model, ARMA Model and Artificial Neural Network has many drawbacks in forecasting such as linear limitations of ARMA model which is in contrast to the financial time series which are often nonlinear, ANN is very weak in terms of out-sample forecast and it …
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A canção como arma: José Afonso, Sérgio Godinho e José Mário Branco, entre Cantigas do Maio (1971) e FMI (1981)
Esta dissertação tem como propósito estabelecer plataformas, comparatistas e outras que surjam como identicamente legítimas, entre as obras lírico-musicais de José Afonso, José Mário Branco e Sérgio Godinho, no âmbito da sua intenção interventiva, nas áreas política e social, e tendo como …
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Impacto del decreto de restricción al porte de armas de fuego sobre los homicidios en Colombia
… la suspensión de los permisos de porte de arma de fuego en Colombia y se ha prorrogado por varios años. Mientras que algunos estudios en Colombia han evaluado el impacto de las restricciones temporales de porte de armas sobre los homicidios en algunas ciudades del país, no se han realizado …
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Advanced and complete functional series time-dependent ARMA (FS-TARMA) methods for the identification and fault diagnosis of non-stationary stochastic structural systems
… AutoRegressive Moving Average (FS-TARMA) models. These models have parameters that explicitly depend on time, with the dependence described by deterministic functions belonging to specific functional sub-spaces. The focus of the present thesis is on the development of complete and …
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