Efficient and Scalable Processing of String Similarity Join
Efficient and Scalable Processing of String Similarity Join
复制标题
字符串相似连接的高效且可扩展的处理
DOI:
10.1109/tkde.2012.195
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发表时间:
2013-10
影响因子:
8.9
通讯作者:
Tung, Anthony K. H.
中科院分区:
文献类型:
--
作者:
Rong, Chuitian;Lu, Wei;Wang, Xiaoli;Du, Xiaoyong;Chen, Yueguo;Tung, Anthony K. H.
The string similarity join is a basic operation of many applications that need to find all string pairs from a collection given a similarity function and a user-specified threshold. Recently, there has been considerable interest in designing new algorithms with the assistant of an inverted index to support efficient string similarity joins. These algorithms typically adopt a two-step filter-and-refine approach in identifying similar string pairs: 1) generating candidate pairs by traversing the inverted index; and 2) verifying the candidate pairs by computing the similarity. However, these algorithms either suffer from poor filtering power (which results in high verification cost), or incur too much computational cost to guarantee the filtering power. In this paper, we propose a multiple prefix filtering method based on different global orderings such that the number of candidate pairs can be reduced significantly. We also propose a parallel extension of the algorithm that is efficient and scalable in a MapReduce framework. We conduct extensive experiments on both centralized and Hadoop systems using both real and synthetic data sets, and the results show that our proposed approach outperforms existing approaches in both efficiency and scalability.
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DOI:
10.1145/223784.223807
发表时间:
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期刊:
--
影响因子:
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发表时间:
2010-06
期刊:
Proceedings of the 2010 ACM SIGMOD International Conference on Management of data
影响因子:
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