在序列对齐方法的基础上，提出了客户购买行为的相似比较标准。

A similarity measurement of customers purchase behaviors was proposed based on the sequence alignment method.

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所以，那些取得对齐质量与对齐时间最佳平衡的程序就是好的多序列对齐程序。

So a good MSA program tries to get a best balance between alignment quality and computation time.

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每个测试序列对每个文件系统运行6次，对合理对齐的分区运行3次，对未合理对齐的分区运行3次。

Each test sequence was run six times for each file system, three times on properly aligned and three times on improperly aligned partitions.

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