Autoregressive Models
Mostrando 13-24 de 97 artigos, teses e dissertações.
-
13. Parametric Study of Stay Cables of a Bridge Under Simulated Spatially Correlated Turbulent Wind
Abstract The main objective of this work is to carry out a parametric study of stay cables of a bridge under simulated spatially correlated buffeting forces. This vibration mechanism is simulated with an Autoregressive and Moving Average (ARMA) model, and applied to mathematical models of the stay cables of the tallest cable-stayed bridge in Mexico. The use
Lat. Am. j. solids struct.. Publicado em: 2016-08
-
14. Componentes principais e modelagem linear generalizada na associação entre atendimento hospitalar e poluição do ar
OBJETIVO Analisar a associação entre concentrações dos poluentes atmosféricos e atendimentos diários por causas respiratórias em crianças. MÉTODOS Estudo ecológico de série temporal. Foram analisadas as contagens diárias de admissões hospitalares de crianças < 6 anos e as concentrações diárias de poluentes atmosféricos (PM10, SO2, NO2,
Rev. Saúde Pública. Publicado em: 2014-06
-
15. Critical points on growth curves in autoregressive and mixed models
Adjusting autoregressive and mixed models to growth data fits discontinuous functions, which makes it difficult to determine critical points. In this study we propose a new approach to determine the critical stability point of cattle growth using a first-order autoregressive model and a mixed model with random asymptote, using the deterministic portion of th
Sci. agric. (Piracicaba, Braz.). Publicado em: 2014-02
-
16. Realized volatility: evidence from Brazil
Using intraday data for the most actively traded stocks on the São Paulo Stock Market (BOVESPA) index, this study considers two recently developed models from the literature on the estimation and prediction of realized volatility: the Heterogeneous Autoregressive Model of Realized Volatility (HAR-RV), developed by Corsi (2009), and the Mixed Data Sampling m
Publicado em: 09/11/2012
-
17. Brazil and renewable energy: a study on the negotiation of environmental goods / O Brasil e as energias renováveis: um estudo sobre as negociações de bens ambientais
A necessidade de mitigação dos danos ambientais e preservação do meio ambiente fez com que os países repensassem suas formas de produção e consumo, despontando, dentre outras, a preocupação de estimular a produção e o uso de bens ambientais em detrimento aos convencionais. Diante disso, questões sobre a definição e classificação de bens ambie
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/09/2012
-
18. Evaluating the existence of structural change in the brazilian term structure of interest : evidence based on cointegration models with structural break
This paper investigates whether there is evidence of structural change in the Brazilian term structure of interest rates. Multivariate cointegration techniques are used to verify this evidence. Two econometrics models are estimated. The rst one is a Vector Autoregressive Model with Error Correction Mechanism (VECM) with smooth transition in the deterministi
Publicado em: 17/09/2012
-
19. Evaluating the existence of structural change in the Brazilian term structure of interest: evidence based on cointegration models with structural break
This paper investigates whether there is evidence of structural change in the Brazilian term structure of interest rates. Multivariate cointegra- tion techniques are used to verify this evidence. Two econometrics models are estimated. The rst one is a Vector Autoregressive Model with Error Correction Mechanism (VECM) with smooth transition in the determin-
Publicado em: 05/07/2012
-
20. Estimação e previsão da estrutura a termo das taxas de juros usando técnicas de inteligência computacional / Term structure of interest rate modeling and forecasting using computational intelligence techniques
This work proposes the term structure of interest rates modeling and forecasting using computational intelligence techniques, based on data from the US and Brazilian fixed income markets. The yield curve modeling includes the use of some evolutionary computation methods like Genetic Algorithms, Differential Evolution and Evolution Strategies in comparison wi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/06/2012
-
21. PRODUÃÃO INDUSTRIAL, ARRECADAÃÃO E GUERRA FISCAL ENTRE OS ESTADOS DO NORDESTE: UMA PROPOSTA DE INVESTIGAÃÃO / INDUSTRIAL PRODUCTION, AND WAR TAX REVENUE BETWEEN THE NORTHEAST: A PROPOSAL FOR RESEARCH
The study involves the application of time series techniques to investigate the phenomenon of the War Tax generated by the financial and tax benefits granted in a general way by the Federal District and municipalities seeking new investments for the development of their region in order to leverage through the collection of the Tax on Circulation of Goods and
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/06/2012
-
22. Transformações em modelos de séries temporais / Transformations in time series models
Cordeiro and Andrade (2009) incorporate the idea of transforming the response variable to the GARMA model, generalized autoregressive moving average, introduced by Benjamin et al. (2003), thus developing the TGARMA model, transformed generalized autoregressive moving average. The goal of this thesis is to develop the TGARMA model introduced by Cordeiro and A
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/05/2012
-
23. Estimação indireta de modelos R-GARCH / Indirect inference of R-GARCH models
Linear processes do not capture the structure of financial data. There is a large variety of nonlinear models available in literature. The class of ARCH models (Autoregressive Conditional Heterokedastic) was introduced by Engle (1982) in order to estimate inflation\ s variance. The idea is that, in this class, returns are serially uncorrelated, but the volat
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/03/2012
-
24. MODELANDO EXPECTATIVAS PARA TÃTULOS PÃBLICOS NACIONAIS: UMA APLICAÃÃO COM MODELOS VAR / MODELING EXPECTATIONS FOR NATIONAL PUBLIC SECURITIES: AN APPLICATION TO MODELS VAR
Considering the timing with which the market and the economic and financial analysts require information about the evolution of the assets, this work provides subsidies to apply time series models to anticipate the return of Brazilian government bonds. Vector auto-regressive models are developed and estimated for the main assets in government securities mark
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/02/2012