large_scale_approximate_string_matching

1.The purposes of it were to improve the efficiency of searching a string in a large-scale database by the means of approximate string matching and to provide a means to search a string with wildcards.
其目的在于提高基于相似字符串匹配的查询在大规模字符串数据库中的查询效率，并且提供带通配符的字符串查询方式。
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