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检索条件"主题词=Lloyd algorithm"
32 条 记 录,以下是1-10 订阅
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Nondegeneracy and weak global convergence of the lloyd algorithm in rd
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SIAM JOURNAL ON NUMERICAL ANALYSIS 2008年 第3期46卷 1423-1441页
作者: Emelianenko, Maria Ju, Lili Rand, Alexander George Mason Univ Dept Math Sci Fairfax VA 22030 USA Univ S Carolina Dept Math Columbia SC 29208 USA Carnegie Mellon Univ Dept Math Sci Pittsburgh PA 15213 USA
The lloyd algorithm originated in the context of optimal quantization and represents a fixed point iteration for computing an optimal quantizer. Reducing average distortion at every step, it constructs a Voronoi parti... 详细信息
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Convergence of the lloyd algorithm for computing centroidal Voronoi tessellations
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SIAM JOURNAL ON NUMERICAL ANALYSIS 2006年 第1期44卷 102-119页
作者: Du, Q Emelianenko, M Ju, LL Penn State Univ Dept Math University Pk PA 16802 USA Carnegie Mellon Univ Dept Math Sci Pittsburgh PA 15213 USA Univ S Carolina Dept Math Columbia SC 29208 USA
Centroidal Voronoi tessellations (CVTs) are Voronoi tessellations of a bounded geometric domain such that the generating points of the tessellations are also the centroids (mass centers) of the corresponding Voronoi r... 详细信息
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A modification of the lloyd algorithm for k-anonymous quantization
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INFORMATION SCIENCES 2013年 222卷 185-202页
作者: Rebollo-Monedero, David Forne, Jordi Pallares, Esteve Parra-Arnau, Javier Univ Politecn Cataluna Dept Telemat Engn E-08034 Barcelona Spain
We address the problem of designing quantizers that cluster data while satisfying a k-anonymity requirement. A general data compression perspective is adopted, which considers both discrete and continuous probability ... 详细信息
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Candidate of initial value in lloyd algorithm for constructing low-coherence matrix  10
Candidate of initial value in Lloyd algorithm for constructi...
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10th International Conference on Intelligent Computation Technology and Automation (ICICTA)
作者: Rong, Rong Fu, Yuli Xiang, Youjun Xu, Junwei South China Univ Technol Sch Elect & Informat Engn Guangzhou 510640 Guangdong Peoples R China
The problem of constructing matrix with low-coherence is arised in many applications, such as CDMA, compressive sensing (CS), beamforming, etc. Usually the design of low-coherence codebook can be modeled as vector qua... 详细信息
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Modified Vector Quantization for Small-Cell Access Point Placement With Inter-Cell Interference
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IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS 2022年 第8期21卷 6387-6401页
作者: Gopal, Govind R. Nayebi, Elina Villardi, Gabriel Porto Rao, Bhaskar D. Univ Calif San Diego Dept Elect & Comp Engn La Jolla CA 92093 USA Apple Inc Cupertino CA 95014 USA Univ Calif San Diego Qualcomm Inst Calit2 La Jolla CA 92093 USA Natl Inst Informat & Commun Technol NICT Wireless Network Res Ctr Yokosuka Kanagawa 2390847 Japan
In this paper, we explore the small-cell uplink access point (AP) placement problem in the context of throughput optimality and provide solutions while taking into consideration inter-cell interference (ICI). First, w... 详细信息
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Vector Quantization Methods for Access Point Placement in Cell-Free Massive MIMO Systems
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IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS 2024年 第6期23卷 5425-5440页
作者: Gopal, Govind R. Rao, Bhaskar D. Univ Calif San Diego Dept Elect & Comp Engn La Jolla CA 92093 USA
We examine the problem of uplink cell-free access point (AP) placement in the context of optimal throughput. In this regard, we formulate two main placement problems, namely the sum rate and minimum rate maximization ... 详细信息
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GOSSIP COVERAGE CONTROL FOR ROBOTIC NETWORKS: DYNAMICAL SYSTEMS ON THE SPACE OF PARTITIONS
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SIAM JOURNAL ON CONTROL AND OPTIMIZATION 2012年 第1期50卷 419-447页
作者: Bullo, Francesco Carli, Ruggero Frasca, Paolo Univ Calif Santa Barbara Ctr Control Dynam Syst & Computat Santa Barbara CA 93106 USA Politecn Torino Dipartimento Matemat Turin Italy
Future applications in environmental monitoring, delivery of services, and transportation of goods motivate the study of deployment and partitioning tasks for groups of autonomous mobile agents. These tasks may be ach... 详细信息
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UNIVERSAL Ls-RATE-OPTIMALITY OF Lr-OPTIMAL QUANTIZERS BY DILATATION AND CONTRACTION
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ESAIM-PROBABILITY AND STATISTICS 2009年 第3期13卷 218-246页
作者: Sagna, Abass Univ Paris 06 Lab Probabilites & Modeles Aleatoires UMR 7599 F-75252 Paris 05 France
We investigate in this paper the properties of some dilatations or contractions of a sequence (alpha(n))(n >= 1) of L-r-optimal quantizers of an R-d-valued random vector X is an element of L-r (P) defined in the pr... 详细信息
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BER criterion and codebook construction for finite-rate precoded spatial multiplexing with linear receivers
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IEEE TRANSACTIONS ON SIGNAL PROCESSING 2006年 第5期54卷 1653-1665页
作者: Zhou, SL Li, BS Univ Connecticut Dept Elect & Comp Engn Storrs CT 06269 USA
Precoded spatial multiplexing systems with rate-limited feedback have been studied recently based on various precoder selection criteria. Instead of those based on indirect performance indicators, we in this paper pro... 详细信息
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AN IMAGE THRESHOLDING METHOD USING A MINIMUM WEIGHTED SQUARED-DISTORTION CRITERION
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PATTERN RECOGNITION 1995年 第7期28卷 1063-1071页
作者: MORII, F Department of Information and Computer Sciences Faculty of Science Nara Women's University Kita-Uoya Nishimachi Nara 630 Japan
We present a new thresholding method for image segmentation in which thresholds are selected on the basis of a minimum weighted squared-distortion criterion. An iterative algorithm, which is named a supervised lloyd a... 详细信息
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