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£¨1£©ÂÛÎÄ£ºContext quantization based on the modified K-means clustering
×÷ÕߣºMin Chen,  Fuyan Wang
·¢±íÓÚ£ºAdvanced Materials Research Vols. 756-759 (2013)
doi:10.4028/www.scientific.net/AMR.756-759.4068

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Accession number:       
20134416937557
        Title:        Context quantization based on the modified K-means clustering
        Authors:        Chen, Min1 Email author minkeychen@sina.cn; Wang, Fu Yan2 Email author 757441312@qq.com
        Author affiliation:        1 College of Information Science, Yunnan University, Kunming, 650091, China
                2 College of Information and Technology, Kunming University, Kunming, 650214, China
        Source title:        Advanced Materials Research
        Abbreviated source title:        Adv. Mater. Res.
        Volume:        756-759
        Monograph title:        Information Technology Applications in Industry, Computer Engineering and Materials Science
        Issue date:        2013
        Publication year:        2013
        Pages:        4068-4072
        Language:        English
        ISSN:        10226680
        ISBN-13:        9783037857700
        Document type:        Conference article (CA)
        Conference name:        3rd International Conference on Materials Science and Information Technology, MSIT 2013
        Conference date:        September 14, 2013 - September 15, 2013
        Conference location:        Nanjing, Jiangsu, China
        Conference code:        100389
        Sponsor:        Trans tech publications inc.; Computer Science and Electronic Technology; BITS Narsampet; Universitatea Politehnica Din Bucuresti
        Publisher:        Trans Tech Publications Ltd, Kreuzstrasse 10, Zurich-Durnten, CH-8635, Switzerland
        Abstract:        The context quantization for I-ary source based on the modified K-means clustering algorithm is present in this paper. In this algorithm, the adaptive complementary relative entropy between two conditional probability distributions, which is used as the distance measure for K-means instead, is formulated to describe the similarity of these two probability distributions. The rules of the initialized centers chosen for K-means are also discussed. The proposed algorithm will traverse all possible number of the classes to search the optimal one which is corresponding to the shortest adaptive code length. Then the optimal context quantizer is achieved rapidly and the adaptive code length is minimized at the same time. Simulations indicate that the proposed algorithm produces better coding result than the result of other algorithm. © (2013) Trans Tech Publications, Switzerland.
        Number of references:        8
        Main heading:        Information technology
        Controlled terms:        Clustering algorithms - Materials science - Optimal systems - Optimization - Probability distributions
        Uncontrolled terms:        Adaptive code lengths - Conditional probability distributions - Context quantization - Distance measure - K-means - Model contexts - Modified k-means clustering - Relative entropy
        Classification code:        721 Computer Circuits and Logic Elements - 903 Information Science - 921.5 Optimization Techniques - 922.1 Probability Theory - 951 Materials Science
        DOI:        10.4028/www.scientific.net/AMR.756-759.4068
        Database:        Compendex
                Compilation and indexing terms, © 2016 Elsevier Inc.
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