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检索条件"主题词=expectation-maximization algorithm"
625 条 记 录,以下是501-510 订阅
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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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ℓ 1-Penalized censored Gaussian graphical model
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Biostatistics (Oxford, England) 2020年 第2期21卷 e1-e16页
作者: Augugliaro, Luigi Abbruzzo, Antonino Vinciotti, Veronica Department of Economics Business and Statistics University of Palermo Building 13 Viale delle Scienze Palermo Italy Department of Mathematics Brunel University London Kingston Lane Uxbridge UB8 3PH United Kingdom
Graphical lasso is one of the most used estimators for inferring genetic networks. Despite its diffusion, there are several fields in applied research where the limits of detection of modern measurement technologies m... 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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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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The Effect of Uniform Data Quantization on GMM-based Clustering by Means of EM algorithm  20
The Effect of Uniform Data Quantization on GMM-based Cluster...
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20th International Symposium on INFOTEH-JAHORINA (INFOTEH)
作者: Jovanovic, Aleksandra Peric, Zoran Nikolic, Jelena Aleksic, Danijela Univ Nis Dept Telecommun Fac Elect Engn Nish Serbia Telekom Srbija Dept Mobile Network Nis Nish Serbia
In this paper, unlike the commonly considered theoretical scenario in clustering, wherein data attributes are accurately presented, we research how successful clustering can be indeed performed in situations wherein b... 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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Intergenerational mobility measurement with latent transition matrices
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JOURNAL OF ECONOMIC INEQUALITY 2023年 第1期21卷 25-45页
作者: Bavaro, Michele Tullio, Federico Univ Oxford INET Oxford England Univ Oxford Dept Social Policy & Intervent Oxford England Bank Italy DG Econ Stat & Res Rome Italy
We propose a multivariate approach for the estimation of intergenerational transition matrices. Our methodology is grounded on the assumption that individuals' social status is unobservable and must be estimated. ... 详细信息
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