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检索条件"主题词=Expectation Maximization Algorithm"
643 条 记 录,以下是611-620 订阅
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Detecting DNA regulatory motifs by incorporating positional trends in information content
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GENOME BIOLOGY 2004年 第7期5卷 1-21页
作者: Kechris, KJ van Zwet, E Bickel, PJ Eisen, MB Univ Calif Berkeley Dept Stat Berkeley CA 94720 USA Univ Calif Berkeley Lawrence Berkeley Lab Div Life Sci Dept Genome Sci Berkeley CA 94720 USA Univ Calif Berkeley Dept Mol & Cell Biol Ctr Integrat Genom Berkeley CA 94720 USA
On the basis of the observation that conserved positions in transcription factor binding sites are often clustered together, we propose a simple extension to the model-based motif discovery methods. We assign position... 详细信息
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Noise adaptive speech recognition based on sequential noise parameter estimation
Noise adaptive speech recognition based on sequential noise ...
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Workshop on Adaptation Methods for Speech Recognition
作者: Yao, KS Paliwal, KK Nakamura, S ATR Spoken Language Translat Res Labs Kyoto Japan Griffith Univ Sch Microelect Engn Brisbane Qld Australia
In this paper, a noise adaptive speech recognition approach is proposed for recognizing speech which is corrupted by additive non-stationary background noise. The approach sequentially estimates noise parameters, thro... 详细信息
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Noise adaptive speech recognition based on sequential noise parameter estimation
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SPEECH COMMUNICATION 2004年 第1期42卷 5-23页
作者: Yao, KS Paliwal, KK Nakamura, S ATR Spoken Language Translat Res Labs Kyoto Japan Griffith Univ Sch Microelect Engn Brisbane Qld Australia
In this paper, a noise adaptive speech recognition approach is proposed for recognizing speech which is corrupted by additive non-stationary background noise. The approach sequentially estimates noise parameters, thro... 详细信息
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Alternating minimization multigrid algorithms for transmission tomography
Alternating minimization multigrid algorithms for transmissi...
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Conference on Computational Imaging II
作者: O'Sullivan, JA Benac, J Washington Univ Dept Elect & Syst Engn Elect Syst & Signals Res Lab St Louis MO 63130 USA
The problem of image formation for X-ray transmission tomography is formulated as a statistical inverse problem. The maximum likelihood estimate of the attenuation function is sought. Using convex optimization methods... 详细信息
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A novel Mixture Model Method for identification of differentially expressed genes from DNA microarray data
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BMC BIOINFORMATICS 2004年 第1期5卷 201-201页
作者: Najarian, K Zaheri, M Rad, AA Najarian, S Dargahi, J Univ N Carolina Dept Comp Sci Charlotte NC 28223 USA Amirkabir Univ Technol Comp Engn & IT Dept Tehran Iran Concordia Univ CONCAVE Res Ctr Dept Mech & Ind Engn Quebec City PQ Canada
Background: The main goal in analyzing microarray data is to determine the genes that are differentially expressed across two types of tissue samples or samples obtained under two experimental conditions. Mixture mode... 详细信息
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Prediction of RNA Polymerase Binding Sites Using Purine-Pyrimidine Encoding and Hybrid Learning Methods
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International Journal of Applied Science and Engineering 2004年 第2期2卷 177-188页
作者: Cheng-Jian Lin Chun-Cheng Peng and Chi-Yung Lee Department of Computer Science and Information Engineering Chaoyang University of Technology bSchool of Computer Science and Information Systems University of London Department of Electronic Engineering Nan Kai College
Escherichia coli (E. coli) K12 was sequenced in 1997. The 4,639,221-base pair DNA sequence consists of 4288 annotated protein-coding genes, 38 percent of which have no attrib- uted function. One of the major problems ... 详细信息
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System Identification from Multi-Rate Data
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IFAC Proceedings Volumes 2004年 第1期37卷 155-160页
作者: R. Bhushan Gopaluni Harigopal Raghavan Sirish L. Shah Department of Chemical & Materials Engineering University of Alberta Edmonton AB CANADA - T6G 2G6
In this paper, we provide a novel iterative identification algorithm for multi-rate sampled data systems. The procedure involves, as a first step, identifying a simple initial model from multi-rate data. Based on this... 详细信息
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Learning mixtures of point distribution models with the EM algorithm
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PATTERN RECOGNITION 2003年 第12期36卷 2805-2818页
作者: Al-Shaher, AA Hancock, ER Univ York Dept Comp Sci York YO1 5DD N Yorkshire England
This paper demonstrates how the EM algorithm can be used for learning and matching mixtures of point distribution models. We make two contributions. First, we show how shape-classes can be learned in an unsupervised m... 详细信息
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Estimating the accuracy of polymerase chain reaction-based tests using endpoint dilution
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BIOMETRICS 2003年 第3期59卷 505-511页
作者: Hughes, JP Totten, P Univ Washington Dept Biostat 357232 Seattle WA 98195 USA Univ Washington Dept Med Seattle WA USA
Polymerase chain reaction (PCR)-based tests for various microorganisms or target DNA sequences are generally acknowledged to be highly "sensitive," yet the concept of sensitivity is ill-defined in the litera... 详细信息
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Land use/land cover change detection based on canonical transformation
Land use/land cover change detection based on canonical tran...
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Conference on Image Processing and Pattern Recognition in Remote Sensing
作者: Zhang, L Liao, MS Sheng, H Wuhan Univ Natl Lab Informat Engn Surveying Mapping & Remote Wuhan 430079 Hubei Peoples R China
Change detection is a key topic in land use/land cover related studies and significant efforts have been made in the development of methods for change detection. In this article a multivariate analysis method based on... 详细信息
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