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检索条件"主题词=EM-algorithm"
256 条 记 录,以下是31-40 订阅
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Autoregressive processes with generalized hyperbolic innovations
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COMMUNICATIONS IN STATISTICS-SIMULATION AND COMPUTATION 2020年 第12期49卷 3080-3092页
作者: Ghasami, Safdar Khodadadi, Zahra Maleki, Mohsen Islamic Azad Univ Marvdasht Branch Dept Stat Marvdasht Iran Shiraz Univ Dept Stat Shiraz Iran
This article investigates autoregressive processes with the flexible and attractive symmetric/asymmetric and light/heavy tailed Generalized-Hyperbolic innovations. The Generalized-Hyperbolic family of distributions ha... 详细信息
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Statistical inference for coherent systems with Weibull distributed component lifetimes under complete and incomplete information
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APPLIED STOCHASTIC MODELS IN BUSINESS AND INDUSTRY 2019年 第4期35卷 1011-1027页
作者: Jablonka, A. Cramer, E. Hermanns, M. Rhein Westfal TH Aachen Inst Stat D-52056 Aachen Germany
Point estimators for the parameters of the component lifetime distribution in coherent systems are evolved assuming to be independently and identically Weibull distributed component lifetimes. We study both complete a... 详细信息
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Regression modeling of ordinal data with nonzero baselines
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BIOMETRICS 1999年 第1期55卷 308-316页
作者: Xie, MG Simpson, DG Natl Inst Stat Sci Res Triangle Pk NC 27709 USA
This paper develops regression models for ordinal data with nonzero control response probabilities. The models are especially useful in dose-response studies where the spontaneous or natural response rate is nonneglig... 详细信息
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Joint discrete and continuous matrix distribution modeling
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STOCHASTIC MODELS 2024年 第1期40卷 1-37页
作者: Bladt, Martin Gardner, Clara Brimnes Univ Copenhagen Dept Math Sci Copenhagen Denmark Tech Univ Denmark DTU Compute Lyngby Denmark Tech Univ Denmark DTU Compute DK-2800 Lyngby Denmark
In this paper, we introduce a bivariate distribution on R(+)xN arising from a single underlying Markov jump process. The marginal distributions are phase-type and discrete phase-type distributed, respectively, which a... 详细信息
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Hidden markov models in reliability and maintenance
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EUROPEAN JOURNAL OF OPERATIONAL RESEARCH 2023年 第3期304卷 1242-1255页
作者: Gamiz, Maria Luz Limnios, Nikolaos Segovia-Garcia, Maria Del Carmen Univ Granada Granada Spain Univ Technol Compiegne Compiegne France
Although the hidden Markov models (HMM) are very popular in many applied areas their use in reliabil-ity engineering is limited. Problems such as the selection of the HMM model by choosing the appropriate number of st... 详细信息
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An Alternative Estimation Approach for the Heterogeneity Linear Mixed Model
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COMMUNICATIONS IN STATISTICS-SIMULATION AND COMPUTATION 2014年 第10期43卷 2628-2638页
作者: Martinez, Marie-Jose Holian, emma INRIA Grenoble Rhone Alpes Team MISTIS F-38334 Saint Ismier France Lab Jean Kuntzmann F-38334 Saint Ismier France Natl Univ Ireland Sch Math Dept Stat & Appl Math Galway Ireland
In this article, an alternative estimation approach is proposed to fit linear mixed effects models where the random effects follow a finite mixture of normal distributions. This heterogeneity linear mixed model is an ... 详细信息
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Model-based clustering for multivariate functional data
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COMPUTATIONAL STATISTICS & DATA ANALYSIS 2014年 71卷 92-106页
作者: Jacques, Julien Preda, Cristian Univ Lille 1 Lab Paul Painleve UMR CNRS 8524 Lille France INRIA Lille Nord Europe MODAL Team Lille France Polytech Lille Lille France
The first model-based clustering algorithm for multivariate functional data is proposed. After introducing multivariate functional principal components analysis (MFPCA), a parametric mixture model, based on the assump... 详细信息
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Penalized maximum likelihood estimator for finite multivariate skew normal mixtures
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COMMUNICATIONS IN STATISTICS-THEORY AND METHODS 2023年 第23期52卷 8280-8305页
作者: Wu, Weisan Li, Shaoting Baicheng Normal Univ Sch Math & Stat Baicheng Peoples R China Dongbei Univ Finance & Econ Sch Stat 217 Jianshan St Dalian 116025 Peoples R China
In practice, multivariate skew normal mixture (MSNM) models provide a more flexible framework than multivariate normal mixture models, especially for heterogeneous and asymmetric data. For MSNM models, the maximum lik... 详细信息
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Reliability of one-shot device with generalized gamma lifetime under cyclic accelerated life-test
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PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART O-JOURNAL OF RISK AND RELIABILITY 2022年 第6期236卷 1007-1023页
作者: Zhu, Xiaojun Liu, Kai Xian Jiaotong Liverpool Univ Dept Math Sci Suzhou Peoples R China Shanghai Lixin Univ Accounting & Finance Sch Stat & Math Interdisciplinary Res Inst Data Sci Room 208Teaching Bldg 1995 Shangchuan Rd Shanghai 201209 Peoples R China
One-shot devices are products or equipments that can be used only once. A nature characteristic of one-shot devices is that they get destroyed immediately after their use, and therefore their actual lifetimes are neve... 详细信息
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Discrete-time inverse linear quadratic optimal control over fnite time-horizon under noisy output measurements
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Control Theory and Technology 2021年 第4期19卷 563-572页
作者: Han Zhang Yibei Li Xiaoming Hu Department of Automation Shanghai Jiao Tong UniversityShanghai 200240China Key Laboratory of System Control and Information Processing Ministry of Education of ChinaShanghai 200240China Shanghai Engineering Research Center of Intelligent Control and Management Shanghai 200240China Department of Mathematics KTH Royal Institute of Technology10044 StockholmSweden
In this paper,the problem of inverse quadratic optimal control over fnite time-horizon for discrete-time linear systems is *** goal is to recover the corresponding quadratic objective function using noisy ***,the iden... 详细信息
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