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检索条件"主题词=expectation-maximization algorithm"
621 条 记 录,以下是171-180 订阅
排序:
A semiparametric isotonic regression model for skewed distributions with application to DNA-RNA-protein analysis
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BIOMETRICS 2022年 第4期78卷 1464-1474页
作者: Wang, Chenguang Yuan, Ao Cope, Leslie Qin, Jing Johns Hopkins Univ Sidney Kimmel Comprehens Canc Ctr Baltimore MD USA Georgetown Univ Dept Biostat Bioinformat & Biomath Washington DC USA NIAID Bethesda MD 20852 USA
In this paper, we propose a semiparametric regression model that is built upon an isotonic regression model with the assumption that the random error follows a skewed distribution. We develop an expectation-maximizati... 详细信息
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Statistical inference for masked interval data with Weibull distribution under simple step-stress test and tampered failure rate model
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PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART O-JOURNAL OF RISK AND RELIABILITY 2017年 第6期231卷 654-665页
作者: Azizi, Fariba Haghighi, Firoozeh Ghadiri, Elahe Torabi, Leila Univ Tehran Dept Math Stat & Comp Sci Tehran Iran
In this article, we consider the planning of simple step-stress life test in the presence of competing risks with the possibility of masked causes of failure and interval censoring. It is assumed that the competing ri... 详细信息
来源: 评论
An improved lossless image compression based arithmetic coding using mixture of non-parametric distributions
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MULTIMEDIA TOOLS AND APPLICATIONS 2015年 第23期74卷 10605-10619页
作者: Masmoudi, Atef Puech, William Masmoudi, Afif Univ Sfax Sfax Preparatory Engn Inst Sfax Tunisia Univ Montpellier 2 LIRMM UMR CNRS 5506 F-34392 Montpellier 05 France Univ Sfax Fac Sci Sfax Lab Stat & Probabil Sfax Tunisia
In this paper, we propose a new approach for a block-based lossless image compression using finite mixture models and adaptive arithmetic coding. Conventional arithmetic encoders encode and decode images sample-by-sam... 详细信息
来源: 评论
Logistic model for pattern inference of subway passenger flows based on fare collection and vehicle location data
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APPLIED MATHEMATICAL MODELLING 2024年 130卷 472-495页
作者: Li, Chunya Xiong, Shifeng Xiong, Hui Sun, Xuan Qin, Yong Shanghai Univ Engn Sci Sch Math Phys & Stat Shanghai 201620 Peoples R China Chinese Acad Sci Acad Math & Syst Sci NCMIS KLSC Beijing 100190 Peoples R China Univ Chinese Acad Sci Sch Math Sci Beijing 100049 Peoples R China Hainan Univ Sch Mech & Elect Engn Haikou 570228 Peoples R China Beijing Jiaotong Univ Sch Traff & Transportat Beijing 100044 Peoples R China Beijing Jiaotong Univ State Key Lab Rail Traff Control & Safety Beijing 100044 Peoples R China
With large volume of passengers boarding and alighting through subway platforms, the stations are getting crowded, resulting in drops in the level of service and safety concerns, especially for subway systems operatin... 详细信息
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An algorithm for maximum likelihood estimation of hidden Markov models with unknown state-tying
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IEEE TRANSACTIONS ON SPEECH AND AUDIO PROCESSING 1998年 第1期6卷 61-70页
作者: Cappe, O Mokbel, CE Jouvet, D Moulines, E ENST Dept Signal CNRS URA 820 F-75634 Paris 13 France
For speech recognition based on hidden Markov modeling, parameter-tying, which consists in constraining some of the parameters of the model to share the same value, has emerged as a standard practice. In this paper, a... 详细信息
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τ-Inflated Beta Regression Model for Estimating τ-Restricted Means and Event-Free Probabilities for Censored Time-to-Event Data
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BIOMETRICAL JOURNAL 2024年 第8期66卷
作者: Wang, Yizhuo Murray, Susan Univ Michigan Dept Biostat Ann Arbor MI 48109 USA
In this research, we propose analysis of tau-restricted censored time-to-event data via a tau-inflated beta regression (tau-IBR) model. The outcome of interest is min(tau,T), where T and tau are the time-to-event and ... 详细信息
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Semiparametric time-to-event modeling in the presence of a latent progression event
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BIOMETRICS 2017年 第2期73卷 463-472页
作者: Rice, John D. Tsodikov, Alex Univ Michigan Dept Biostat Ann Arbor MI 48109 USA
In cancer research, interest frequently centers on factors influencing a latent event that must precede a terminal event. In practice it is often impossible to observe the latent event precisely, making inference abou... 详细信息
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Stomped-t: A novel probability distribution for rough-probabilistic clustering
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INFORMATION SCIENCES 2017年 421卷 104-125页
作者: Banerjee, Abhirup Maji, Pradipta Indian Stat Inst Machine Intelligence Unit Biomed Imaging & Bioinformat Lab Kolkata India
Rough clustering is one of the principal research areas in data mining, machine learning, pattern recognition, and bioinformatics. Among different variants of rough clustering, rough-probabilistic clustering is a new ... 详细信息
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ExomeHMM: A Hidden Markov Model for Detecting Copy Number Variation Using Whole-Exome Sequencing Data
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CURRENT BIOINFORMATICS 2017年 第2期12卷 147-155页
作者: Guo, Cheng Yu, Zhenhua Wang, Minghui Li, Ao Univ Sci & Technol China Sch Informat Sci & Technol Hefei 230027 Anhui Peoples R China Univ Sci & Technol China Res Ctr Biomed Engn Hefei Anhui Peoples R China
Background: Copy number variations (CNVs), including amplification and deletion, are alterations of DNA copy number compared to a reference genome. CNVs play a crucial role in tumourigenesis and progression, including... 详细信息
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Network anomaly detection with incomplete audit data
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COMPUTER NETWORKS 2007年 第13期51卷 3935-3955页
作者: Patcha, Animesh Park, Jung-Min Virginia Polytech Inst & State Univ Bradley Dept Elect & Comp Engn Blacksburg VA 24061 USA
With the ever increasing deployment and usage of gigabit networks, traditional network anomaly detection based Intrusion Detection Systems (IDS) have not scaled accordingly. Most, if not all IDS assume the availabilit... 详细信息
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