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| Random Projection Based Clustering Method of Parallel Data Streams |
| CHEN Hua-Hui1,2, SHI Bo-Le1 |
1.Department of Computing and Information Technology, Fudan University, Shanghai 200433
2.School of Information Science and Engineering, Ningbo University, Ningbo 315211 |
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Abstract A synopsis is maintained dynamically for each data stream. The construction of the synopsis is based on random projections and it utilizes the amnesic feature of data stream. Using the synopsis, the approximate distances between streams and the cluster center can be computed fast. And an efficient online version of the classical K-means clustering algorithm is developed. The experimental results show the method can be performed effectively with a good clustering quality.
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Received: 18 October 2007
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2009, Vol. 22 
