Fuzzy hierarchy estimation, which is more influenced by such subjective factors as scores given by experts, can be used in optimization of project schemes.
项目方案优化可采用模糊层次评价法，但该方法需专家打分，主观因素的影响比较大。
Grey statistics method is more objective and reliable comparing with fuzzy hierarchy estimation, thus it is an ideal method for optimization of project schemes.
比较这两种方法，灰色统计评估法比模糊层次评价法更客观可靠，是一种比较理想的项目方案优化方法。
Grey statistics method is more objective and reliable comparing with fuzzy hierarchy estimation, thus it is an ideal method for optimization of project schemes.
比较这两种方法，灰色统计评估法比模糊层次评价法更客观可靠，是一种比较理想的项目方案优化方法。
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