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检索条件"主题词=Expectation Maximization Algorithm"
643 条 记 录,以下是391-400 订阅
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A novel family of beta mixture models for the differential analysis of DNA methylation data: an application to prostate cancer
arXiv
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arXiv 2022年
作者: Majumdar, Koyel Silva, Romina Perry, Antoinette Sabrina Watson, Ronald William Rau, Andrea Jaffrezic, Florence Murphy, Thomas Brendan Gormley, Isobel Claire School of Mathematics and Statistics University College Dublin Ireland School of Medicine University College Dublin Ireland Conway Institute of Biomedical and Biomolecular Research University College Dublin Ireland School of Biology and Environmental Science University College Dublin Ireland INRAE UMR1313 AgroParisTech GABI Université Paris-Saclay France
Identifying differentially methylated cytosine-guanine dinucleotide (CpG) sites between benign and tumour samples can assist in understanding disease. However, differential analysis of bounded DNA methylation data oft... 详细信息
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A Large Confirmatory Dynamic Factor Model for Stock Market Returns in Different Time Zones
arXiv
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arXiv 2022年
作者: Linton, Oliver B. Tang, Haihan Wu, Jianbin Faculty of Economics University of Cambridge Austin Robinson Building Sidgwick Avenue CambridgeCB3 9DD United Kingdom International School of Finance Fudan University 220 Handan Road Yangpu District Shanghai200433 China School of Business Nanjing University 22 Hankou Road Gulou District Nanjing210093 China
We propose a confirmatory dynamic factor model for a large number of stocks whose returns are observed daily across multiple time zones. The model has a global factor and a continental factor that both drive the indiv... 详细信息
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Addressing maximization Bias in Reinforcement Learning with Two-Sample Testing
arXiv
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arXiv 2022年
作者: Waltz, Martin Okhrin, Ostap Technische Universität Dresden Dresden01062 Germany Leipzig Dresden Germany
Value-based reinforcement-learning algorithms have shown strong results in games, robotics, and other real-world applications. Overestimation bias is a known threat to those algorithms and can sometimes lead to dramat... 详细信息
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Policy Choice in Time Series by Empirical Welfare maximization
arXiv
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arXiv 2022年
作者: Kitagawa, Toru Wang, Weining Xu, Mengshan Department of Economics Brown University United States Department of Economics University College London United Kingdom Faculty of economics and business University of Groningen Netherlands Department of Economics University of Mannheim Germany
This paper develops a novel method for policy choice in a dynamic setting where the available data is a multi-variate time series. Building on the statistical treatment choice framework, we propose Time-series Empiric... 详细信息
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Statistical channel model for underwater wireless optical communication system under a wide range of air bubble populations
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OPTICAL ENGINEERING 2021年 第3期60卷 036111-036111页
作者: Singh, Mandeep Singh, Maninder Lal Singh, Gurpreet Gill, Harpuneet Singh Guru Nanak Dev Univ Dept Elect Technol Amritsar Punjab India
The performance of the underwater wireless optical communication (UWOC) system is severely affected by the presence of air bubbles in the water. Therefore, an experimental setup is designed to investigate the effect o... 详细信息
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Remaining useful life re-prediction methodology based on Wiener process: Subsea Christmas tree system as a case study
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COMPUTERS & INDUSTRIAL ENGINEERING 2021年 151卷 106983-106983页
作者: Cai, Baoping Fan, Hongyan Shao, Xiaoyan Liu, Yonghong Liu, Guijie Liu, Zengkai Ji, Renjie China Univ Petr Natl Engn Lab Offshore Geophys & Explorat Equipme Qingdao 266580 Shandong Peoples R China China Univ Petr Coll Mech & Elect Engn Qingdao 266580 Shandong Peoples R China Ocean Univ China Dept Mech & Elect Engn Qingdao 266100 Shandong Peoples R China
With the continuous improvement of the complexity and comprehensive level of the system, its reliability becomes more and more important. The remaining useful life (RUL) estimation method using the degradation model w... 详细信息
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Application of Hidden Markov Models in Stock Trading  6
Application of Hidden Markov Models in Stock Trading
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6th International Conference on Advanced Computing and Communication Systems (ICACCS)
作者: Chandrika, P., V Visalakshmi, K. Srinivasan, K. Sakthi Vellore Inst Technol VITBS Vellore Tamil Nadu India
The stock market index forecasting is quite a popular topic in the present economy. There are many micro and macro-economic factors which influence the stock prices. With the emergence of machine learning techniques, ... 详细信息
来源: 评论
THE NOISY expectation-maximization algorithm
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FLUCTUATION AND NOISE LETTERS 2013年 第3期12卷 1350012-1350012页
作者: Osoba, Osonde Mitaim, Sanya Kosko, Bart Univ So Calif Inst Signal & Image Proc Dept Elect Engn Los Angeles CA 90089 USA Thammasat Univ Dept Elect & Comp Engn Fac Engn Pathum Thani 12120 Thailand
We present a noise-injected version of the expectation-maximization (EM) algorithm: the noisy expectation-maximization (NEM) algorithm. The NEM algorithm uses noise to speed up the convergence of the EM algorithm. The... 详细信息
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3D variability analysis: Resolving continuous flexibility and discrete heterogeneity from single particle cryo-EM
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JOURNAL OF STRUCTURAL BIOLOGY 2021年 第2期213卷 107702-107702页
作者: Punjani, Ali Fleet, David J. Univ Toronto Dept Comp Sci Toronto ON M5S 3G4 Canada Vector Inst 710661 Univ Ave Toronto ON M5G 1M1 Canada Struct Biotechnol Inc 129-100 Coll Ave Toronto ON M5G 1L5 Canada
Single particle cryo-EM excels in determining static structures of protein molecules, but existing 3D reconstruction methods have been ineffective in modelling flexible proteins. We introduce 3D variability analysis (... 详细信息
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Dynamic Discrete-Continuous Choice Models: Identification and Conditional Choice Probability Estimation
arXiv
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arXiv 2025年
作者: Bruneel-Zupanc, Christophe Department of Economics KU Leuven Belgium
This paper develops a general framework for dynamic models in which individuals simultaneously make both discrete and continuous choices. The framework incorporates a wide range of unobserved heterogeneity. I show tha... 详细信息
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