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===标准算法(朴素k-means)===
 
===标准算法(朴素k-means)===
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最常见的算法使用迭代优化技术。由于它的普遍性,它通常被称为“ k-means算法”,也被称为[[劳埃德算法 Lloyd's algorithm]],特别是在计算机科学界。有时也称为“朴素k-means”,因为存在更快的替代方法。<ref>{{Cite journal|last=Pelleg|first=Dan|last2=Moore|first2=Andrew|date=1999|title=Accelerating exact k -means algorithms with geometric reasoning|url=http://portal.acm.org/citation.cfm?doid=312129.312248|journal=Proceedings of the Fifth ACM SIGKDD International Conference on Knowledge Discovery and Data Mining - KDD '99|language=en|location=San Diego, California, United States|publisher=ACM Press|pages=277–281|doi=10.1145/312129.312248|isbn=9781581131437}}</ref>
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最常见的算法使用迭代优化技术。由于它的普遍性,它通常被称为“ k-means算法”,也被称为[[劳埃德算法 Lloyd's algorithm]],特别是在计算机科学界。有时也称为“朴素k-means”,因为存在更快的替代方法。<ref>{{Cite journal|last=Pelleg|first=Dan|last2=Moore|first2=Andrew|date=1999|title=Accelerating exact k -means algorithms with geometric reasoning|url=http://portal.acm.org/citation.cfm?doid=312129.312248|journal=Proceedings of the Fifth ACM SIGKDD International Conference on Knowledge Discovery and Data Mining - KDD '99|language=en|location=San Diego, California, United States|publisher=ACM Press|pages=277–281|doi:10.1145/312129.312248|isbn:9781581131437}}</ref>
    
给定一个初始的k均值m<sub>1</sub><sup>(1</sup>),...,m<sub>k</sub><sup>(1)</sup>(见下文),该算法通过以下两个步骤交替进行:<ref>{{Cite book |url=http://www.inference.phy.cam.ac.uk/mackay/itila/book.html |title=Information Theory, Inference and Learning Algorithms |last=MacKay |first=David |publisher=Cambridge University Press |year=2003 |isbn=978-0-521-64298-9 |pages=284&ndash;292 |chapter=Chapter 20. An Example Inference Task: Clustering |mr=2012999 |ref=mackay2003 |chapterurl=http://www.inference.phy.cam.ac.uk/mackay/itprnn/ps/284.292.pdf }}</ref>
 
给定一个初始的k均值m<sub>1</sub><sup>(1</sup>),...,m<sub>k</sub><sup>(1)</sup>(见下文),该算法通过以下两个步骤交替进行:<ref>{{Cite book |url=http://www.inference.phy.cam.ac.uk/mackay/itila/book.html |title=Information Theory, Inference and Learning Algorithms |last=MacKay |first=David |publisher=Cambridge University Press |year=2003 |isbn=978-0-521-64298-9 |pages=284&ndash;292 |chapter=Chapter 20. An Example Inference Task: Clustering |mr=2012999 |ref=mackay2003 |chapterurl=http://www.inference.phy.cam.ac.uk/mackay/itprnn/ps/284.292.pdf }}</ref>
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