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检索条件"主题词=expectation maximisation algorithm"
33 条 记 录,以下是21-30 订阅
Soft shape registration under Lie group frame
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IET COMPUTER VISION 2013年 第6期7卷 437-447页
作者: Peng, Yaxin Lin, Wei Ying, Shihui Peng, Jigen Shanghai Univ Sch Sci Dept Math Shanghai 200444 Peoples R China Xi An Jiao Tong Univ Sch Math & Stat Inst Informat & Syst Sci Xian 710049 Peoples R China
In this study, the authors address a two-dimensional (2D) shape registration problem on data with anisotropic-scale deformation and noise. First, the model is formulated under the iterative closest point (ICP) framewo... 详细信息
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Image segmentation by a new weighted Student's t-mixture model
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IET IMAGE PROCESSING 2013年 第3期7卷 240-251页
作者: Zhang, Hui Wu, Qing Ming Jonathan Thanh Minh Nguyen Nanjing Univ Informat Sci & Technol Sch Comp & Software Nanjing Jiangsu Peoples R China Univ Windsor Dept Elect & Comp Engn Windsor ON N9B 3P4 Canada Nanjing Univ Informat Sci & Technol Jiangsu Engn Ctr Network Monitoring Nanjing Jiangsu Peoples R China
In this study, the authors introduce a new weighted Student's t-mixture model (WSMM) for image segmentation. Gaussian distribution and Student's t-distribution are the two commonly used probabilities in the fi... 详细信息
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Identification of process and measurement noise covariance for state and parameter estimation using extended Kalman filter
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JOURNAL OF PROCESS CONTROL 2011年 第4期21卷 585-601页
作者: Bavdekar, Vinay A. Deshpande, Anjali P. Patwardhan, Sachin C. Indian Inst Technol Dept Chem Engn Bombay 400076 Maharashtra India
The performance of Bayesian state estimators, such as the extended Kalman filter (EKE), is dependent on the accurate characterisation of the uncertainties in the state dynamics and in the measurements. The parameters ... 详细信息
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System identification of nonlinear state-space models
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AUTOMATICA 2011年 第1期47卷 39-49页
作者: Schon, Thomas B. Wills, Adrian Ninness, Brett Linkoping Univ Div Automat Control SE-58183 Linkoping Sweden Univ Newcastle Sch Elect Engn & Comp Sci Callaghan NSW 2308 Australia
This paper is concerned with the parameter estimation of a general class of nonlinear dynamic systems in state-space form. More specifically, a Maximum Likelihood (ML) framework is employed and an expectation Maximisa... 详细信息
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Label Noise-Tolerant Hidden Markov Models for Segmentation: Application to ECGs
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European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases (ECML PKDD)
作者: Frenay, Benoit de Lannoy, Gael Verleysen, Michel Catholic Univ Louvain ICTEAM Inst Machine Learning Grp B-1348 Louvain Belgium
The performance of traditional classification models can adversely be impacted by the presence of label noise in training observations. The pioneer work of Lawrence and Scholkopf tackled this issue in datasets with in... 详细信息
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Joint channel estimation and ISI/ICI cancellation for MIMO-OFDM systems
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INTERNATIONAL JOURNAL OF AD HOC AND UBIQUITOUS COMPUTING 2011年 第2期7卷 137-142页
作者: Chiu, Yi-Jen Chen, Chien-Sheng Chang, Ting-Wei Tainan Univ Technol Dept Informat Management Tainan Taiwan Taiwan Shoufu Univ Dept Digital Entertainment & Game Design Tainan Taiwan VIA Technol Inc Taipei Taiwan
In MIMO-OFDM systems, the multipath components whose delays exceed Cyclic Prefix cause Inter-Symbol Interference and Inter-Carrier Interference, which may degrade system performance severely. In this paper, we propose... 详细信息
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Distribution system state estimation through Gaussian mixture model of the load as pseudo-measurement
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IET GENERATION TRANSMISSION & DISTRIBUTION 2010年 第1期4卷 50-59页
作者: Singh, R. Pal, B. C. Jabr, R. A. Univ London Imperial Coll Sci Technol & Med Dept Elect & Elect Engn London England Amer Univ Beirut Dept Elect & Comp Engn Beirut Lebanon
This study presents an approach to utilise the loads as pseudo-measurements for the purpose of distribution system state estimation (DSSE). The load probability density function (pdf) in the distribution network shows... 详细信息
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Identification of Noise Covariances for State Estimation of a Continuous Fermenter using Extended EM algorithm
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IFAC Proceedings Volumes 2010年 第5期43卷 697-702页
作者: Vinay A. Bavdekar Sachin C. Patwardhan Department of Chemical Engineering Indian Institute of Technology Bombay Mumbai India
Despite developments in sensor technology, monitoring a biological process using regular sensor measurements is often difficult. Development of Bayesian state observers, such as extended Kalman filter(EKF), is an attr... 详细信息
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Inference of haplotypic phase and missing genotypes in polyploid organisms and variable copy number genomic regions
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BMC BIOINFORMATICS 2008年 第1期9卷 1-9页
作者: Su, Shu-Yi White, Jonathan Balding, David J. Coin, Lachlan J. M. Imperial Coll Sch Med Dept Epidemiol & Publ Hlth London W2 1PG England Natl Inst Agr Bot Cambridge CB3 OLE England
Background: The power of haplotype-based methods for association studies, identification of regions under selection, and ancestral inference, is well-established for diploid organisms. For polyploids, however, the dif... 详细信息
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MAXIMUM LIKELIHOOD NONLINEAR SYSTEM ESTIMATION
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IFAC Proceedings Volumes 2006年 第1期39卷 1003-1008页
作者: Thomas B. Schön Adrian Wills Brett Ninness Division of Automatic Control Linköping University SE-581 83 Linköping Sweden School of Electrical Engineering and Computer Science University of Newcastle Callaghan NSW 2308 Australia
This paper is concerned with the parameter estimation of a relatively general class of nonlinear dynamic systems. A Maximum Likelihood (ML) framework is employed in the interests of statistical efficiency, and it is i... 详细信息
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