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检索条件"主题词=Expectation Maximization Algorithm"
643 条 记 录,以下是571-580 订阅
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Implementing wavelet transform/mixture of experts network for analysis of electrocardiogram beats
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EXPERT SYSTEMS 2008年 第2期25卷 150-162页
作者: Ubeyli, Elif Derya TOBB Ekonomi & Teknol Univ Fac Engn Dept Elect & Elect Engn TR-06530 Ankara Turkey
Mixture of experts (ME) is a modular neural network architecture for supervised learning. This paper illustrates the use of the ME network structure to guide model selection for classification of electrocardiogram (EC... 详细信息
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Camera motion estimation using particle filters
Camera motion estimation using particle filters
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3rd International Conference on Computer Vision Theory and Applications
作者: Nikitidis, Symeon Zafeiriou, Stefanos Pitas, Ioannis Aristotle Univ Thessaloniki Dept Informat Thessaloniki 54124 Greece
In this paper a novel algorithm for estimating the parametric form of the camera motion is proposed. A novel stochastic vector field model is presented which can handle smooth motion patterns derived from long periods... 详细信息
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An Efficient Framework for Brain Tumor Segmentation in Magnetic Resonance Images
An Efficient Framework for Brain Tumor Segmentation in Magne...
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1st International Workshop on Image Processing Theory
作者: Bourouis, Sami Hamrouni, Kamel Univ Tunis ElManar Natl Engn Sch Tunis LSTS Lab Tunis Tunisia
The main objective of this paper is to provide an efficient tool for delineating brain tumors in three-dimensional magnetic resonance images. To achieve this goal, we use basically a region-based level-set approach an... 详细信息
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GMM and HMM training by aggregated EM algorithm with increased ensemble sizes for robust parameter estimation
GMM and HMM training by aggregated EM algorithm with increas...
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33rd IEEE International Conference on Acoustics, Speech and Signal Processing
作者: Shinozaki, Takahiro Kawahara, Tatsuya Kyoto Univ Acad Ctr Comp & Media Studies Kyoto Japan
In order to compensate for the weaknesses of the expectation maximization (EM) algorithm to over-training and to improve model performance for new data, we have recently proposed aggregated EM (Ag-EM) algorithm that i... 详细信息
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Image reconstruction in electron microscopy
Image reconstruction in electron microscopy
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Conference on Image Reconstruction from Incomplete Data V
作者: Zheng, Yili Lee, Seunghee Doerschuk, Peter C. Purdue Univ W Lafayette IN 47907 USA
Maximum likelihood statistical algorithms are described for estimating the 3-D variation of the electron scattering intensity of biological objects from cryo electron microscopy images of multiple instances of the obj... 详细信息
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Projection-based Scanned Image Enhancement
Projection-based Scanned Image Enhancement
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24th Internationational Conference on Digital Printing Technologies/Digital Fabrication 2008
作者: Ahmed, Mohamed Nooman Lexmark Int Inc Software Res Lexington KY USA
In this paper, we present a new system to segment and label document images by combining statistical and multiscale view of different image components. Texture of text, halftone and images are characterized by modelin... 详细信息
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Robust Object Detection and Tracking Using a Space-Temporal Mutual Feedback Scheme
Robust Object Detection and Tracking Using a Space-Temporal ...
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International Symposium on Knowledge Acquisition and Modeling
作者: Li, Xuchao Bian, Suxuan Jinggangshan Univ Coll Informat Sci & Media Jian 343009 Jiangxi Peoples R China Jinggangshan Univ Coll Nursing Jian Jiangxi Peoples R China
A statistical object detection and tracking mutual feedback scheme, combining Gaussian mixture model (GMM) based on principal component analysis (PCA) and expectation maximization (EM) Kalman filter algorithm, is prop... 详细信息
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caBIG™ VISDA: Modeling, visualization, and discovery for cluster analysis of genomic data
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BMC BIOINFORMATICS 2008年 第1期9卷 1-18页
作者: Zhu, Yitan Li, Huai Miller, David J. Wang, Zuyi Xuan, Jianhua Clarke, Robert Hoffman, Eric P. Wang, Yue Virginia Polytech Inst & State Univ Dept Elect & Comp Engn Arlington VA 22203 USA NIA Bioinformat Unit RRB NIH Baltimore MD 21224 USA Penn State Univ Dept Elect Engn University Pk PA 16802 USA Childrens Natl Med Ctr Med Genet Res Ctr Washington DC 20010 USA Georgetown Univ Dept Oncol Physiol & Biophys Washington DC 20007 USA Georgetown Univ Lombardi Comprehens Canc Ctr Washington DC 20007 USA
Background: The main limitations of most existing clustering methods used in genomic data analysis include heuristic or random algorithm initialization, the potential of finding poor local optima, the lack of cluster ... 详细信息
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Robust unsupervised detection of action potentials with probabilistic models
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IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING 2008年 第4期55卷 1344-1354页
作者: Benitez, Raul Nenadic, Zoran Univ Calif Irvine Dept Biomed Engn Irvine CA 92697 USA Univ Calif Irvine Dept Elect Engn Irvine CA 92697 USA
We develop a robust and fully unsupervised algorithm for the detection of action potentials from extracellularly recorded data. Using the continuous wavelet transform allied to probabilistic mixture models and Bayesia... 详细信息
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MAP channel-estimation-based PIC receiver for downlink MC-CDMA systems
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EURASIP JOURNAL ON WIRELESS COMMUNICATIONS AND NETWORKING 2008年 第1期000卷 570624-570624页
作者: Dogan, Hakan Panayirci, Erdal Cirpan, Hakan A. Fleury, Bernard H. Istanbul Univ Dept Elect & Elect Engn TR-34850 Istanbul Turkey Kadir Kas Univ Dept Elect Engn TR-34083 Istanbul Turkey Aalborg Hosp Dept Elect Syst Sect Navig & Commun DK-9000 Aalborg Denmark
We propose a joint MAP channel estimation and data detection technique based on the expectation maximization (EM) method with paralel interference cancelation (PIC) for downlink multicarrier (MC) code division multipl... 详细信息
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