Processing All k-Nearest Neighbor Queries in Hadoop
Processing All k-Nearest Neighbor Queries in Hadoop
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DOI:
10.1007/978-3-642-32281-5_34
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发表时间:
2012-08
期刊:
影响因子:
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通讯作者:
Takuya Yokoyama;Y. Ishikawa;Yu Suzuki
中科院分区:
文献类型:
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作者:
Takuya Yokoyama;Y. Ishikawa;Yu Suzuki
Ak-nearest neighbor (k-NN) query, which retrieves nearestkpoints from a database is one of the fundamental query types in spatial databases. Anall k-nearest neighbor query(AkNN query), a variation of ak-NN query, determines thek-nearest neighbors for each point in the dataset in a query process. In this paper, we propose a method for processing AkNN queries inHadoop. We decompose the given space into cells and execute a query using the MapReduce framework in a distributed and parallel manner. Using the distribution statistics of the target data points, our method can process given queries efficiently.