这种被复制、改变和选择的信息称为复制因子。在生物学中这一过程已为人熟知。
The information that is copied, varied and selected is called the replicator, and the process is well understood when applied to biology.
根据图中的注释信息，优先表CUST_CUSTOMER (CCUS)有两个本地谓词，其选择性很强，各自的过滤因子分别是0.00727和0.004。
According to the annotation information in the figure, the table reference CUST_CUSTOMER (CCUS) has two local predicates which are very selective, with filter factor 0.00727 and 0.004, respectively.
模糊数学排序能够综合大量信息，是一个有效的直接梯度分析方法，但需要主观选择因子。
FSO could integrate plenty of information, and was an effective method, but it needed to choose some factors subjectively.
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