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JOIN PROCESSING DEVICE, DATA MANAGEMENT DEVICE, AND STRING SIMILARITY JOIN SYSTEM
JOIN PROCESSING DEVICE, DATA MANAGEMENT DEVICE, AND STRING SIMILARITY JOIN SYSTEM
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机译:联接处理设备,数据管理设备和字符串相似联接系统
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摘要
Provided is a join processing device that performs a similarity join process to plural tuples using an edit distance threshold value τ (positive integer). The join processing device includes a join processing unit that excludes, from a target of edit distance calculation, a pair of tuples that do not have any common character in an end portion ranging from a head character or a tail character to a (τ+1)th character in a join key string in each of the tuples.
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