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检索条件"主题词=EM algorithms"
56 条 记 录,以下是11-20 订阅
排序:
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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Understanding the variability of speed distributions under mixed traffic conditions caused by holiday traffic
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TRANSPORTATION RESEARCH PART C-emERGING TECHNOLOGIES 2010年 第4期18卷 599-610页
作者: Jun, Jungwook Virginia Dept Transportat Traff Engn Div Richmond VA 23219 USA
Understanding the variability of speed patterns and congestion characteristics of interstate freeway systems caused by holiday traffic is beneficial because appropriate countermeasures for safety improvement and conge... 详细信息
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An introduction to hidden Markov models and Bayesian networks
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INTERNATIONAL JOURNAL OF PATTERN RECOGNITION AND ARTIFICIAL INTELLIGENCE 2001年 第1期15卷 9-42页
作者: Ghahramani, Z UCL Gatsby Computat Neurosci Unit London WC1N 3AR England
We provide a tutorial on learning and inference in hidden Markov models in the context of the recent literature on Bayesian networks. This perspective makes it possible to consider novel generalizations of hidden Mark... 详细信息
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Mixtures of regressions with predictor-dependent mixing proportions
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COMPUTATIONAL STATISTICS & DATA ANALYSIS 2010年 第10期54卷 2253-2266页
作者: Young, D. S. Hunter, D. R. Penn State Univ Dept Stat University Pk PA 16802 USA
We extend the standard mixture of linear regressions model by allowing the mixing proportions to be modeled nonparametrically as a function of the predictors. This framework allows for more flexibility in the modeling... 详细信息
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Inventory management of remanufacturable products
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MANAGemENT SCIENCE 2000年 第11期46卷 1412-1426页
作者: Toktay, LB Wein, LM Zenios, SA INSEAD Technol Management F-77305 Fontainebleau France MIT Alfred P Sloan Sch Management Cambridge MA 02139 USA Stanford Univ Grad Sch Business Stanford CA 94305 USA
We address the procurement of new components for recyclable products in the context of Kodak's single-use camera. The objective is to find an ordering policy that minimizes the total expected procurement, inventor... 详细信息
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Iterative Smoother-Based Variance Estimation
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IEEE SIGNAL PROCESSING LETTERS 2012年 第5期19卷 275-278页
作者: Einicke, G. A. Falco, G. Dunn, M. T. Reid, D. C. CSIRO Pullenvale 4069 Australia ISMB I-10138 Turin Italy
The minimum-variance smoother solution for input estimation is described and it is shown that the resulting estimates are unbiased. The smoothed input and state estimates are used to iteratively identify unknown proce... 详细信息
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Large-scale estimation of random graph models with local dependence
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COMPUTATIONAL STATISTICS & DATA ANALYSIS 2020年 152卷 107029-107029页
作者: Babkin, Sergii Stewart, Jonathan R. Long, Xiaochen Schweinberger, Michael Microsoft Redmond WA USA Florida State Univ Dept Stat Tallahassee FL 32306 USA Rice Univ Dept Stat 6100 Main St Houston TX 77005 USA
A class of random graph models is considered, combining features of exponential-family models and latent structure models, with the goal of retaining the strengths of both of them while reducing the weaknesses of each... 详细信息
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Zero-inflated modeling part I: Traditional zero-inflated count regression models, their applications, and computational tools
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WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL STATISTICS 2022年 第1期14卷 e1541-e1541页
作者: Young, Derek S. Roemmele, Eric S. Yeh, Peng Univ Kentucky Dr Bing Zhang Dept Stat 323 Multidisciplinary Sci Bldg Lexington KY 40536 USA Merck Res Labs Upper Gwynedd PA USA
Count regression models maintain a steadfast presence in modern applied statistics as highlighted by their usage in diverse areas like biometry, ecology, and insurance. However, a common practical problem with observe... 详细信息
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Flow-Process Foreground Region of Interest Detection Method for Video Codecs
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IEEE ACCESS 2017年 5卷 16263-16276页
作者: Zhang, Zhewei Jing, Tao Han, Jingning Xu, Yaowu Li, Xuejing Beijing Jiaotong Univ Sch Elect & Informat Engn Beijing 100044 Peoples R China Google Inc Mountain View CA 94043 USA
Detecting the foreground region of interest (ROI) for video sequences is an important issue both for video codecs and monitoring systems. In this paper, we propose a flow-process-based method to detect foreground ROI ... 详细信息
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Entropy based probabilistic collaborative clustering
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PATTERN RECOGNITION 2017年 72卷 144-157页
作者: Sublime, Jeremie Matei, Basarab Cabanes, Guenael Grozavu, Nistor Bennani, Younes Cornuejols, Antoine ISEP RDI Team LISITE Lab 10 Rue Vanves F-92130 Issy Les Moulineaux France Univ Paris 13 Sorbonne Paris Cite LIPN CNRSUMR 7030 99 Ave JB Clement F-93430 Villetaneuse France Univ Paris Saclay INRA AgroParisTech UMR MIA Paris F-75005 Paris France
Unsupervised machine learning approaches involving several clustering algorithms working together to tackle difficult data sets are a recent area of research with a large number of applications such as clustering of d... 详细信息
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