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检索条件"主题词=EM algorithms"
56 条 记 录,以下是41-50 订阅
排序:
STRATEGIES FOR ONLINE INFERENCE OF MODEL-BASED CLUSTERING IN LARGE AND GROWING NETWORKS
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ANNALS OF APPLIED STATISTICS 2010年 第2期4卷 687-714页
作者: Zanghi, Hugo Picard, Franck Miele, Vincent Ambroise, Christophe Exalead F-75008 Paris France UCB Lyon 1 Lab Biometrie & Biol Evolut F-69622 Villeurbanne France CNRS INRA Lab Stat & Genome UEVE 1152UMR 8071 F-91000 Evry France
In this paper we adapt online estimation strategies to perform model-based clustering on large networks. Our work focuses on two algorithms, the first based on the SAem algorithm, and the second on variational methods... 详细信息
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A latent segmentation approach to a Kuhn-Tucker model: An application to recreation demand
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JOURNAL OF ENVIRONMENTAL ECONOMICS AND MANAGemENT 2010年 第3期60卷 209-220页
作者: Kuriyama, Koichi Hanemann, W. Michael Hilger, James R. Kyoto Univ Div Nat Resource Econ Grad Sch Agr Sakyo Ku Kyoto 6068502 Japan Univ Calif Berkeley Dept Agr & Resource Econ Berkeley CA 94720 USA
In this paper, we extend the latent segmentation approach to the Kuhn-Tucker (KT) model. The proposed approach models heterogeneity in preferences for recreational behavior, using a utility theoretical framework to si... 详细信息
来源: 评论
Region and constellations based categorization of images with unsupervised graph learning
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IMAGE AND VISION COMPUTING 2009年 第7期27卷 960-978页
作者: Lozano, M. A. Escolano, F. Bonev, B. Suau, P. Aguilar, W. Saez, J. M. Cazorla, M. A. Univ Alicante Dpto Ciencia Computac & Inteligencia Artificial E-03080 Alicante Spain Univ Nacl Autonoma Mexico Inst Invest Matemat Aplicadas & Sistemas Mexico City 04510 DF Mexico
in this paper, we address the problem of image categorization with a fast novel method based on the unsupervised clustering of graphs in the context of both region-based segmentation and the constellation approach to ... 详细信息
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EFFICIENT BP STEREO WITH AUTOMATIC PARAMemETER ESTIMATION
EFFICIENT BP STEREO WITH AUTOMATIC PARAMEMETER ESTIMATION
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15th IEEE International Conference on Image Processing (ICIP 2008)
作者: Huq, Shafik Koschan, Andreas Abidi, Besma Abidi, Mongi Univ Tennessee Dept Elect Engn & Comp Sci Knoxville TN 37996 USA
In this paper, we propose a series of techniques to enhance the computational performance of existing Belief Propagation (BP) based stereo matching that relies on automatic estimation of the Markov random field (MRF) ... 详细信息
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Modelling a population with Barrett's oesophagus from oesophageal adenocarcinoma incidence data
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SCANDINAVIAN JOURNAL OF GASTROENTEROLOGY 2007年 第3期42卷 308-317页
作者: Van Blankenstein, Mark Looman, Caspar W. N. Kruijshaar, Michelle E. Siersema, Peter D. Kuipers, Ernst J. Bytzer, Peter Erasmus Univ Med Ctr Dept Gastroenterol & Hepatol Rotterdam Netherlands Erasmus Univ Med Ctr Dept Publ Hlth Rotterdam Netherlands Glostrup Univ Hosp Dept Gastroenterol Copenhagen Denmark
Objective. A recent study of adenocarcinoma of the oesophagus (ACO) incidence rates in Denmark showed a steep fall in the over-80 population, interpreted as the result of a decline in the prevalence of Barrett's o... 详细信息
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Particle filtering algorithms for tracking multiple sound sources using microphone arrays
Particle filtering algorithms for tracking multiple sound so...
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32nd IEEE International Conference on Acoustics, Speech and Signal Processing
作者: Kawamoto, Mitsuru Asano, Futoshi Asoh, Hideki Yamamoto, Kiyoshi Natl Inst Adv Ind Sci & Technol Tsukuba Ibaraki 3058568 Japan
A particle filtering algorithm using the parameters in the em (Expectation-Maximization) algorithm is proposed for tracking multiple sound sources. Differently from the conventional em based algorithms, the proposed a... 详细信息
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Identification of distinguishing motifs
Identification of distinguishing motifs
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18th Annual Symposium on Combinatorial Pattern Matching
作者: Feng, WangSen Wang, Zhanyong Wang, Lusheng Peking Univ Dept Comp Sci Beijing Peoples R China City Univ Hong Kong Dept Comp Sci Hong Kong Peoples R China
Motivation: Motif identification for sequences has many important applications in biological studies, e.g., diagnostic probe design, locating binding sites and regulatory signals, and potential drug target identificat... 详细信息
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Protein classification by matching and clustering surface graphs
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PATTERN RECOGNITION 2006年 第4期39卷 539-551页
作者: Lozano, MA Escolano, F Univ Alicante Dept Ciencia Computac & Inteligencia Artificial E-03080 Alicante Spain
In this paper, we address the problem of comparing and classifying protein surfaces with graph-based methods. Comparison relies on matching surface graphs, extracted from the surfaces by considering concave and convex... 详细信息
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em algorithms for Gaussian mixtures with split-and-merge operation
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PATTERN RECOGNITION 2003年 第9期36卷 1973-1983页
作者: Zhang, ZH Chen, CB Sun, J Chan, KL Nanyang Technol Univ Sch Elect & Elect Engn Singapore 639798 Singapore Beijing Sigma Ctr MSR Microsoft Res Asia Beijing 100080 Peoples R China
In order to alleviate the problem of local convergence of the usual em algorithm, a split-and-merge operation is introduced into the em algorithm for Gaussian mixtures. The split-and-merge equations are first presente... 详细信息
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Solving weak transduction with em
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ROBOTICS AND AUTONOMOUS SYSTemS 2002年 第3-4期39卷 129-143页
作者: Ivanov, YA Blumberg, BM MIT Media Lab Cambridge MA 02139 USA
In this paper we describe an algorithm designed for learning perceptual organization of an autonomous agent. The learning algorithm performs incremental clustering of a perceptual input under reward. The distribution ... 详细信息
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