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检索条件"主题词=Expectation Maximization Algorithm"
643 条 记 录,以下是551-560 订阅
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Semi-analytic Approach To Evaluate Performance of a Precoded Multiuser Cooperative Scheme
Semi-analytic Approach To Evaluate Performance of a Precoded...
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21st Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)
作者: Meghdadi, Hamid Cances, Jean-Pierre Meghdadi, Vahid Univ Limoges ENSIL F-87068 Limoges France
This paper addresses the problem of transmitting data to multiple mobile stations using a decode-and-forward strategy. Precoding vectors are used in relays to cancel out multiple access interference at the mobile stat... 详细信息
来源: 评论
CLASSIFICATION OF COMPLEX PEDESTRIAN ACTIVITIES FROM TRAJECTORIES
CLASSIFICATION OF COMPLEX PEDESTRIAN ACTIVITIES FROM TRAJECT...
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IEEE International Conference on Image Processing
作者: Nascimento, Jacinto C. Marques, Jorge S. Figueiredo, Mario A. T. Inst Super Tecn Inst Sistemas & Robot P-1049001 Lisbon Portugal Inst Super Tecn Inst Telecommun P-1049001 Lisbon Portugal
We propose a method to classify human trajectories, modeled by a set of motion vector fields, each tailored to describe a specific motion regime. Trajectories are modeled as being composed of segments corresponding to... 详细信息
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An EM algorithm-Based Channel Estimation for OFDM Amplify-and-Forward Relaying Systems
An EM Algorithm-Based Channel Estimation for OFDM Amplify-an...
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2010 IEEE International Conference on Communications
作者: Sheu, Jeng-Shin Sheen, Wern-Ho Natl Yunlin Univ Sci & Technol Dept Comp Sci & Informat Engn Touliu Yunlin Taiwan Chaoyang Univ Technol Dept Informat & Commun Engn Taichung 41349 Taiwan
The issue of channel estimation is investigated for the orthogonal frequency-division multiplexing (OFDM) relaying system with amplify-and-forward (AF) operation mode. Channel estimation in the AF mode is unique in th... 详细信息
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Joint Iterative Channel Estimation and Data Detection for MIMO-CDMA Systems over Frequency-Selective Fading Channels
Joint Iterative Channel Estimation and Data Detection for MI...
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IEEE Global Telecommunications Conference (GLOBECOM 2010)
作者: Assra, Ayman Hamouda, Walaa Youssef, Amr Concordia Univ Dept Elect & Comp Engn Montreal PQ H3G 1M8 Canada Concordia Univ Concordia Inst Informat Syst Engn Montreal PQ H3G 1M8 Canada
In this paper, we present an iterative joint channel estimation and data detection technique for multiple-input multiple-output (MIMO) code-division multiple-access (CDMA) systems over frequency-selective fading chann... 详细信息
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Genomic selection and complex trait prediction using a fast EM algorithm applied to genome-wide markers
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BMC BIOINFORMATICS 2010年 第1期11卷 1-12页
作者: Shepherd, Ross K. Meuwissen, Theo H. E. Woolliams, John A. Cent Queensland Univ Sch Informat & Commun Technol Rockhampton Qld 4702 Australia Norwegian Univ Life Sci Inst Anim & Aquacultural Sci N-1432 As Norway Univ Edinburgh Royal Dick Sch Vet Studies Roslin EH25 9PS Midlothian Scotland Univ Edinburgh Roslin Inst Roslin EH25 9PS Midlothian Scotland
Background: The information provided by dense genome-wide markers using high throughput technology is of considerable potential in human disease studies and livestock breeding programs. Genome-wide association studies... 详细信息
来源: 评论
Probabilistic principal component analysis for metabolomic data
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BMC BIOINFORMATICS 2010年 第1期11卷 571-571页
作者: Nyamundanda, Gift Brennan, Lorraine Gormley, Isobel Claire Univ Coll Dublin Sch Math Sci Dublin Ireland Univ Coll Dublin Conway Inst Sch Agr Food Sci & Vet Med Dublin Ireland
Background: Data from metabolomic studies are typically complex and high-dimensional. Principal component analysis (PCA) is currently the most widely used statistical technique for analyzing metabolomic data. However,... 详细信息
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FACTOR ANALYZED VOICE MODELS FOR HMM-BASED SPEECH SYNTHESIS
FACTOR ANALYZED VOICE MODELS FOR HMM-BASED SPEECH SYNTHESIS
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IEEE International Conference on Acoustics, Speech, and Signal Processing
作者: Kyosuke Kazumi Yoshihiko Nankaku Keiichi Tokuda Nagoya Institute of Technology Nagoya Japan
This paper describes factor analyzed voice models for realizing various voice characteristics in the HMM-based speech synthesis. The eigenvoice method can synthesize speech with arbitrary voice characteristics by inte... 详细信息
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Research on Network Self-protection System Model and Its Security Event Correlation Engine
Research on Network Self-protection System Model and Its Sec...
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2010 International Conference on Services Science, Management and Engineering (SSME 2010)
作者: Hongyu Yang School of Computer Science and Technology Civil Aviation University of China Tianjin 300300,China Dongming Wang School of Computer Science and Technology Civil Aviation University of China Tianjin 300300,China Chuangxi Chen Dep.of ground maintenance China Southern Airlines Co.Ltd. Guangzhou 510406,China
Manual analysis of security events inevitably results in a large number of attacks can not being detected timely This paper presents a new network self-protection system model,gives its architecture and designs its in... 详细信息
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Image fusion based on an expectation maximization algorithm
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OPTICAL ENGINEERING 2005年 第7期44卷 077001-1-077001页
作者: Liu, G Jing, ZL Sun, SY Shanghai Jiao Tong Univ Inst Aerosp Informat & Control Sch Elect Informat & Elect Engn Shanghai 200030 Peoples R China Shanghai Jiao Tong Univ Inst Aerosp Sci & Technol Shanghai 200030 Peoples R China
A novel image fusion method based on an expectation maximization (EM) algorithm and the discrete wavelet frame (DWF) transform is proposed. The registered images are first decomposed using the DWF transform, which is ... 详细信息
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Theoretical and Numerical Study of MLEM and OSEM Reconstruction algorithms for Motion Correction in Emission Tomography
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IEEE TRANSACTIONS ON NUCLEAR SCIENCE 2009年 第5期56卷 2739-2749页
作者: Dey, Joyoni King, Michael A. Univ Massachusetts Sch Med Div Nucl Med & Radiol Worcester MA 01655 USA
Patient body-motion and respiratory-motion impacts the image quality of cardiac SPECT and PET perfusion images. Several algorithms exist in the literature to correct for motion within the iterative maximum-likelihood ... 详细信息
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