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检索条件"主题词=Expectation-Maximization algorithms"
270 条 记 录,以下是51-60 订阅
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Analysis of system with pure time-delay using computer algebra systems
Analysis of system with pure time-delay using computer algeb...
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Telecommunications Forum (TELFOR)
作者: Miroslav D. Lutovac Vladimir M. Mladenović Dragutin Lj. Debeljković Ovaj rad delimicno je finansiran sa projekta Nauke i tehnoloskog razvoja Republike Srbije
In this paper, a new approach of solving the continuous-time systems, with pure time-delay elements, using symbolic tools is presented. Although symbolic computer tools cannot find the closed form solution in frequenc... 详细信息
来源: 评论
Effect of Residual Channel Estimation Errors in Random Access Methods for Satellite Communications
Effect of Residual Channel Estimation Errors in Random Acces...
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IEEE Vehicular Technology Conference
作者: Karine Zidane Jerome Lacan Marie-Laure Boucheret Charly Poulliat Mathieu Gineste Damien Roques Caroline Bes Arnaud Deramecourt University of Toulouse ISAE/DMIA & TeSA University of Toulouse IRIT/ENSEEIHT Thales Alenia Space CNES
In recent random access methods used for satellite communications, collisions between packets are not considered as destructive. In fact, to deal with the collision problem, successive interference cancellation is per... 详细信息
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Convergence and Stability of Iteratively Re-weighted Least Squares algorithms
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IEEE TRANSACTIONS ON SIGNAL PROCESSING 2014年 第1期62卷 183-195页
作者: Ba, Demba Babadi, Behtash Purdon, Patrick L. Brown, Emery N. MIT Dept Brain & Cognit Sci Cambridge MA 02139 USA Massachusetts Gen Hosp Dept Anesthesia Crit Care & Pain Med Boston MA 02114 USA MIT Harvard MIT Div Hlth Sci & Technol Cambridge MA 02139 USA
In this paper, we study the theoretical properties of iteratively re-weighted least squares (IRLS) algorithms and their utility in sparse signal recovery in the presence of noise. We demonstrate a one-to-one correspon... 详细信息
来源: 评论
Multiple model approach to linear parameter varying time-delay system identification with EM algorithm
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JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS 2014年 第12期351卷 5565-5581页
作者: Yang, Xianqiang Gao, Huijun Harbin Inst Technol Res Inst Intelligent Control & Syst Harbin 150080 Heilongjiang Peoples R China
This paper is concerned with the identification problem of linear parameter varying (LPV) time-delay systems. Due to inherent nonlinearity, the industrial processes are often approximately described by an LPV model co... 详细信息
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The Path Inference Filter: Model-Based Low-Latency Map Matching of Probe Vehicle Data
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IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS 2014年 第2期15卷 507-529页
作者: Hunter, Timothy Abbeel, Pieter Bayen, Alexandre Univ Calif Berkeley Coll Engn Dept Elect Engn & Comp Sci Berkeley CA 94720 USA
We consider the problem of reconstructing vehicle trajectories from sparse sequences of GPS points, for which the sampling interval is between 1 s and 2 min. We introduce a new class of algorithms, which are altogethe... 详细信息
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Directionlet-based method using the Gaussian mixture prior to SAR image despeckling
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INTERNATIONAL JOURNAL OF REMOTE SENSING 2014年 第3期35卷 1143-1161页
作者: Lu, Yixiang Gao, Qingwei Sun, Dong Zhang, Dexiang Anhui Univ Sch Elect Engn & Automat Hefei 230601 Peoples R China
In this article, a new denoising algorithm is proposed based on the directionlet transform and the maximum a posteriori (MAP) estimation. The detailed directionlet coefficients of the logarithmically transformed noise... 详细信息
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Identification of LTI Time-Delay Systems with Missing Output Data Using GEM Algorithm
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MATHEMATICAL PROBLEMS IN ENGINEERING 2014年 第1期2014卷 1-8页
作者: Yang, Xianqiang Karimi, Hamid Reza Harbin Inst Technol Res Inst Intelligent Control & Syst Harbin 150080 Heilongjiang Peoples R China Univ Agder Dept Engn Fac Sci & Engn N-4898 Grimstad Norway
This paper considers the parameter estimation for linear time-invariant (LTI) systems in an input-output setting with output error (OE) time-delay model structure. The problem of missing data is commonly experienced i... 详细信息
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Estimating Parameters of a Probabilistic Heterogeneous Block Model via the EM Algorithm
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JOURNAL OF PROBABILITY AND STATISTICS 2015年 第1期2015卷 1-14页
作者: Bolla, Marianna Elbanna, Ahmed Budapest Univ Technol & Econ Inst Math Muegyet Rakpart 3 H-1111 Budapest Hungary
We introduce a semiparametric block model for graphs, where the within- and between-cluster edge probabilities are not constants within the blocks but are described by logistic type models, reminiscent of the 50-year-... 详细信息
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High-Dimensional Cluster Analysis with the Masked EM Algorithm
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NEURAL COMPUTATION 2014年 第11期26卷 2379-2394页
作者: Kadir, Shabnam N. Goodman, Dan F. M. Harris, Kenneth D. UCL UCL Inst Neurol London WC1E 6DE England UCL UCL Dept Neurosci Physiol & Pharmacol London WC1E 6DE England Harvard Univ Sch Med Massachusetts Eye & Ear Infirm Eaton Peabody LabsDept Otol & Laryngol Boston MA 02114 USA
Cluster analysis faces two problems in high dimensions: the "curse of dimensionality" that can lead to overfitting and poor generalization performance and the sheer time taken for conventional algorithms to ... 详细信息
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Probabilistic partitioning methods to find significant patterns in ChIP-Seq data
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BIOINFORMATICS 2014年 第17期30卷 2406-2413页
作者: Nair, Nishanth Ulhas Kumar, Sunil Moret, Bernard M. E. Bucher, Philipp Ecole Polytech Fed Lausanne Sch Comp & Commun Sci Lab Computat Biol & Bioinformat CH-1015 Lausanne Switzerland Ecole Polytech Fed Lausanne Sch Life Sci Swiss Inst Expt Canc Res ISREC CH-1015 Lausanne Switzerland Swiss Inst Bioinformat CH-1015 Lausanne Switzerland
Motivation: We have witnessed an enormous increase in ChIP-Seq data for histone modifications in the past few years. Discovering significant patterns in these data is an important problem for understanding biological ... 详细信息
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