该算法赋予每项评分一个按时间逐步递减的权重，利用加权后的评分寻找目标用户的最近邻居。
The rating is given a weight by a gradual time decrease which is weighted to search the nearest neighbor of the target user.
本文使用这一方法对石油企业进行了有效性评价，并通过确定合理的权重寻找到满意的投影点，可以为管理者提供能为其接受的改进工作目标。
The paper USES it to evaluate petroleum enterprises, and gives the satisfactory projection point by suitable weights, which can provide acceptable target to the manager.
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