用传统的经验函数估算软件成本有很多局限性，采用基于范例库推理的估算方法可以很好地弥补其中的问题。

Software cost estimate with the traditional experience function has the shortcoming, and applying CBR estimate method can make up these problems.

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文中提出用问题归约策略与基于范例推理结合的方法解决这个问题。

In this paper, a method is proposed that combines the strategy of problem reduction with case-based reasoning to give necessary flexibility to TSP.

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