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检索条件"主题词=Expectation-Maximization algorithm"
628 条 记 录,以下是501-510 订阅
排序:
A spatial copula interpolation in a random field with application in air pollution data
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MODELING EARTH SYSTEMS AND ENVIRONMENT 2023年 第1期9卷 175-194页
作者: Thakur, Debjoy Das, Ishapathik Chakravarty, Shubhashree Indian Inst Technol Dept Math & Stat Tirupati Andhra Pradesh India Indian Stat Inst Machine Intelligence Unit Kolkata India
Interpolating a skewed conditional spatial random field with missing data is cumbersome in the absence of Gaussianity assumptions. Copulas can capture different types of joint tail characteristics beyond the Gaussian ... 详细信息
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Recent developments in iterative image reconstruction for PET and SPECT
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IEEE TRANSACTIONS ON MEDICAL IMAGING 2000年 第4期19卷 257-260页
作者: Leahy, R Byrne, C Univ So Calif Dept Elect Engn Syst Los Angeles CA 90089 USA Univ So Calif Inst Signal & Image Proc Los Angeles CA 90089 USA Univ So Calif Dept Radiol Los Angeles CA USA Univ So Calif Dept Biomed Engn Los Angeles CA 90089 USA
Introduces a series of articles on the developments in iterative image reconstruction for positron-emission tomography (PET) and single proton emission computer tomography (SPECT).
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Model-Based Discriminant Analysis of High-Dimensional Data
Model-Based Discriminant Analysis of High-Dimensional Data
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作者: Mingzhu Sun The University of Queensland
学位级别:博士
This thesis addresses two important problems in modern statistics: discriminant analysis of big data and dimension reduction of high-dimensional data such as microarray gene expression data. These problems are commonl... 详细信息
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A class of bivariate Erlang distributions and ruin probabilities in multivariate risk models
A class of bivariate Erlang distributions and ruin probabili...
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作者: Groparu-Cojocaru, Ionica Université de Montréal
学位级别:doctor
Nous y introduisons une nouvelle classe de distributions bivariées de type Marshall-Olkin, la distribution Erlang bivariée. La transformée de Laplace, les moments et les densités conditionnelles y ... 详细信息
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Detection of land-cover transitions by combining multidate classifiers
Detection of land-cover transitions by combining multidate c...
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2nd International Workshop on Pattern Recognition for Remote Sensing
作者: Bruzzone, L Cossu, R Vernazza, G Univ Trent Dept Informat & Commun Technol I-38050 Trento Italy Univ Genoa Dept Biophys & Elect Engn I-16145 Genoa Italy
This paper addresses the problem of detecting land-cover transitions by analysing multitemporal remote-sensing images. In order to develop an effective system for the detection of land-cover transitions, an ensemble o... 详细信息
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Noise Benefits in Backpropagation and Deep Bidirectional Pre-training
Noise Benefits in Backpropagation and Deep Bidirectional Pre...
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International Joint Conference on Neural Networks (IJCNN)
作者: Audhkhasi, Kartik Osoba, Osonde Kosko, Bart Univ So Calif Signal & Image Proc Inst Dept Elect Engn Los Angeles CA 90089 USA
We prove that noise can speed convergence in the backpropagation algorithm. The proof consists of two separate results. The first result proves that the backpropagation algorithm is a special case of the generalized E... 详细信息
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An Online Approach to Estimate Parameters of Phase-Type Distributions  49
An Online Approach to Estimate Parameters of Phase-Type Dist...
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49th Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN)
作者: Buchholz, Peter Dohndorf, Iryna Kriege, Jan TU Dortmund Dept Comp Sci Dortmund Germany
The traditional expectation-maximization (EM) algorithm is a general purpose algorithm for maximum likelihood estimation in problems with incomplete data. Several variants of the algorithm exist to estimate the parame... 详细信息
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NEETs and Youth Unemployment: A Longitudinal Comparison Across European Countries
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SOCIAL INDICATORS RESEARCH 2022年 第2期162卷 739-761页
作者: Pennoni, Fulvia Bal-Domanska, Beata Univ Milano Bicocca Dept Stat & Quantitat Methods Milan Italy Wroclaw Univ Econ & Business Dept Reg Econ Wroclaw Poland
Young people's place in the labor market has been a topic of interest to the European Union and national governments for many years. This study analyzes young people who are Not in Employment nor in Education or T... 详细信息
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Covariances matrix under the multivariate-Gh funtion to desing portfolios
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Contaduria y Administracion 2016年 第3期61卷 535-550页
作者: Núñez Mora, José Antonio Mata Mata, Leovardo EGADE Business School Tecnologico de Monterrey Mexico
In this paper we developed the estimation implementation of the generalized hyperbolic multivariate (GH) distribution with a non-fixed Bessel function. The covariance matrix estimated through the GH distribution compl... 详细信息
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Digital Image Forensics Using EM algorithm
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10th Pacific Rim Conference on Multimedia
作者: Lin, Tim-kun Huang, Chung-Lin Fo Guang Univ Dept Informat Ilan Taiwan
Digital image forensics has become a very important research topic This paper proposes a method to detect the forgery of digital image by (I) computing the interpolated coefficient for the Images using expectation-max... 详细信息
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