The final challenge with the Nearest Neighbor technique is that it has the potential to be a computing-expensive algorithm.

最近邻技术最后的一个挑战是该算法的计算成本有可能会很高。

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This model includes a historical database, a procedure of searching for the nearest neighbor subset and its optimization algorithm and the technique of predict and estimation.

该模型包括历史样本数据库、近邻子集搜索程序、近邻子集优化算法和预报量估计技术。

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