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检索条件"主题词=Expectation-Maximization algorithm"
628 条 记 录,以下是501-510 订阅
排序:
Applying Training Hidden Features to Joint Curve Evolution for Brain MRI Segmentation
Applying Training Hidden Features to Joint Curve Evolution f...
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International Conference on Control, Automation, Robotics and Vision
作者: Mahshid Farzinfar Eam Khwang Teoh Zhong Xue School of Electrical Electronic Engineering Nanyang Technological University Singapore The Methodist Hospital Research Institute Weill Medical College of Cornell University Houston TX USA
According to the level of information provided in images, segmentation techniques can be categorized into two groups. One is region-labeling, which obeys the intensity-based classification methods. Although modeling t... 详细信息
来源: 评论
Weather regimes designed for local precipitation modeling: Application to the Mediterranean basin
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JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 2010年 第D12期115卷
作者: Vrac, Mathieu Yiou, Pascal Ctr Etud Saclay Lab Sci Climat & Environm F-91191 Gif Sur Yvette France
Although weather regimes are often used as a primary step in many statistical downscaling processes, they are usually defined solely in terms of atmospheric variables and seldom to maximize their correlation to observ... 详细信息
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AN EM-algorithm APPROACH FOR THE DESIGN OF ORTHONORMAL BASES ADAPTED TO SPARSE REPRESENTATIONS
AN EM-ALGORITHM APPROACH FOR THE DESIGN OF ORTHONORMAL BASES...
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IEEE International Conference on Acoustics, Speech, and Signal Processing
作者: A. Dremeau C. Herzet INRIA Centre Rennes - Bretagne Atlantique Campus universitaire de Beaulieu 35000 Rennes France
In this paper, we consider the problem of dictionary learning for sparse representations. Several algorithms dealing with this problem can be found in the literature. One of them, introduced by Sezer et al. in [1] opt... 详细信息
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An EM-Based Frequency Offset Estimator for OFDM Systems with Unknown Interference
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IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS 2009年 第9期8卷 4470-4475页
作者: Sanguinetti, Luca Morelli, Michele Imbarlina, Giuseppe Univ Pisa Dept Informat Engn I-56126 Pisa Italy
We consider an orthogonal frequency-division multiplexing (OFDM) system and address the problem of carrier frequency estimation in the presence of narrowband interference (NBI) with unknown power. This scenario is enc... 详细信息
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Rainfall data simulation by hidden Markov model and discrete wavelet transformation
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STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT 2009年 第7期23卷 863-877页
作者: Jayawardena, A. W. Xu, P. C. Li, W. K. Publ Works Res Inst Int Ctr Water Hazard & Risk Management Tsukuba Ibaraki Japan Chinese Acad Sci Acad Math & Syst Sci Beijing Peoples R China Univ Hong Kong Dept Stat & Actuarial Sci Hong Kong Hong Kong Peoples R China
In many regions, monthly (or bimonthly) rainfall data can be considered as deterministic while daily rainfall data may be treated as random. As a result, deterministic models may not sufficiently fit the daily data be... 详细信息
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A Unified Model-Based Image Analysis Framework for Automated Detection of Precancerous Lesions in Digitized Uterine Cervix Images
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IEEE JOURNAL OF SELECTED TOPICS IN SIGNAL PROCESSING 2009年 第1期3卷 101-111页
作者: Srinivasan, Yeshwanth Corona, Enrique Nutter, Brian Mitra, Sunanda Bhattacharya, Sonal Ambrado Inc Richardson TX 75080 USA Texas Tech Univ Dept Elect & Comp Engn Lubbock TX 79409 USA
A unified framework for a fully automated diagnostic system for cervical intraepithelial neoplasia (CIN) is proposed. CIN is a detectable and treatable precursor pathology of cancer of the uterine cervix. algorithms b... 详细信息
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Cramer-Rao Lower Bound and EM algorithm for Envelope-Based SNR Estimation of Nonconstant Modulus Constellations
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IEEE TRANSACTIONS ON COMMUNICATIONS 2009年 第6期57卷 1622-1627页
作者: Gappmair, Wilfried Lopez-Valcarce, Roberto Mosquera, Carlos Graz Univ Technol Inst Commun Networks & Satellite Commun A-8010 Graz Austria Univ Vigo Dept Signal Theory & Commun Vigo Spain
Signal-to-noise ratio (SNR) estimation for linearly modulated signals is addressed in this letter, focusing on envelope-based estimators, which are robust to carrier offsets and phase jitter, and on the challenging ca... 详细信息
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The beta-binomial convolution model for 2x2 tables with missing cell counts
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STATISTICA NEERLANDICA 2009年 第1期63卷 24-42页
作者: Eisinga, Rob Radboud Univ Nijmegen Dept Social Sci Res Methods NL-6500 HE Nijmegen Netherlands
This paper considers the beta-binomial convolution model for the analysis of 2x2 tables with missing cell counts. We discuss maximum-likelihood (ML) parameter estimation using the expectation-maximization algorithm an... 详细信息
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Adaptive Iterative Detectors for Phase-Uncertain Channels via Variational Bounding
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IEEE TRANSACTIONS ON COMMUNICATIONS 2009年 第3期57卷 716-725页
作者: Nissila, Mauri Pasupathy, Subbarayan Nokia FIN-90570 Oulu Finland Univ Toronto Dept Elect & Comp Engn Toronto ON M5S 3G4 Canada
The problem of iterative detection/decoding of data symbols transmitted over an additive white Gaussian noise (AWGN) channel in the presence of phase uncertainty is addressed in this paper. By modelling the phase unce... 详细信息
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Development of a Censored Robust Design Model for Time-Oriented Quality Characteristics
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QUALITY AND RELIABILITY ENGINEERING INTERNATIONAL 2009年 第2期25卷 181-197页
作者: Shaibu, A. -B. Cho, Byung Rae Kovach, Jami Univ Houston Dept Informat & Logist Technol Houston TX 77204 USA Clemson Univ Dept Ind Engn Adv Qual Engn Lab Clemson SC 29634 USA
Robust design (RD) techniques, which are based on the concept of building quality into products or processes, are increasingly popular in industry primarily because of their practicality. Traditional RD principles hav... 详细信息
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