Exact Maximum Likelihood Estimation of Stationary Vector ARMA Models

نویسندگان

چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Exact maximum likelihood estimation of partially nonstationary vector ARMA models

A useful class of partially nonstationary vector autoregressive moving average (VARMA) models is considered with regard to parameter estimation. An exact maximum likelihood (EML) approach is developed on the basis of a simple transformation applied to the error-correction representation of the models considered. The employed transformation is shown to provide a standard VARMA model with the imp...

متن کامل

Faster ARMA maximum likelihood estimation

A new likelihood based AR approximation is given for ARMA models. The usual algorithms for the computation of the likelihood of an ARMA model require O(n) flops per function evaluation. Using our new approximation, an algorithm is developed which requires only O(1) flops in repeated likelihood evaluations. In most cases, the new algorithm gives results identical to or very close to the exact ma...

متن کامل

“ Maximum likelihood estimation of a noninvertible ARMA

Proof of Lemma A.1. (i) As Θa is open, we can choose a small neighborhood N (θ • a) whose closure N (θ• a) is contained in Θa. By continuity of a (·; ·), compactness of {z : |z| ≤ 1} × N (θ• a), and the condition a (z; θa) 6= 0 for |z| ≤ 1 and θa ∈ Θa, we can find a positive δ (θ• a) such that a (z; θa) 6= 0 for |z| ≤ 1 + 2δ (θ• a) and θa ∈ N (θ• a). That the inverse a (z; θa) −1 has the stated...

متن کامل

Exact Maximum Likelihood Estimation of Observation-Driven Econometric Models

The possibility of exact maximum likelihood estimation of many observation-driven models remains an open question. Often only approximate maximum likelihood estimation is attempted, because the unconditional density needed for exact estimation is not known in closed form. Using simulation and nonparametric density estimation techniques that facilitate empirical likelihood evaluation, we develop...

متن کامل

Exact Maximum Likelihood Estimation for Word Mixtures

The mixture model for generating document is a generative language model used in information retrieval. While using this model, there are situations that we need to find the maximum likelihood estimation of the density of one multinomial, given fixed mixture weight and the densities of the other multinomial. In this paper, we provide an exact solution and a quick algorithm to solve this problem...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of the American Statistical Association

سال: 1995

ISSN: 0162-1459,1537-274X

DOI: 10.1080/01621459.1995.10476511