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- Jhun Myoungshic
- Dept. of Statistics, Korea University
書誌事項
- タイトル別名
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- BOOTSTRAPPING <i>K</i>-MEANS CLUSTERING
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抄録
Independent observations X1, X2, …, Xn are made on a distribution F on Rd. To devide these observations into k clusters, first choose a vector of optimal cluster centers bn=(bn1, bn2, …, bnk) to minimize Wn(a)=1/nΣni=1min1≤j≤k||Xi-aj||2 as a function of a=(a1, a2, …, ak), then assign each observation to its nearest cluster center. Each bnj is the mean of observations in its cluster. Pollard (1982) obtained a central limit theorem for the means of the k-clusters. In this paper, it is shown that the bootstrap distribution of the centered bn has the same limiting distribution; the argument rests on asymptotic behavior of empirical processes on Vapnik-Chervonenkis classes in triangular array setting. Advantages of the bootstrap methods are discussed and the performance of bootstrap confidence sets is compared with Pollard's confidence sets by Monte Carlo simulation. 2
収録刊行物
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- Journal of the Japanese Society of Computational Statistics
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Journal of the Japanese Society of Computational Statistics 3 (1), 1-14, 1990
日本計算機統計学会
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詳細情報
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- CRID
- 1390001204414227328
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- NII論文ID
- 110001235576
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- NII書誌ID
- AA10823693
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- ISSN
- 18811337
- 09152350
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- MRID
- 1108298
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- 本文言語コード
- en
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- データソース種別
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- JaLC
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- 抄録ライセンスフラグ
- 使用不可