火车票查询系统软件，自带数据库，本地查询，也可嵌入网页查询-Train inquiry system software, bring their own databases, local information, inquiries can also be embedded in web pages

sleuth算法是用来挖掘无序频繁嵌入子树，通过给定最小支持度和数据库，输出所以频繁嵌入无序子树。-sleuth mining algorithm is used to frequent embedded unordered subtrees, by a given minimum support and database output so frequent embedded unordered subtrees.