These theorems is the basis and guideline for constructing and verifying the weak derivation set according to the invertibilrty of attribute mapping, thus improves the basic theories of data lineage tracing.
这些定理为作者根据属性映射的可逆性构造和验证弱起源集提供了基本依据和指导思想，丰富了数据志跟踪的基本理论。
参考来源 - 数据仓库中数据志跟踪的理论与方法研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The last commented line shows the alternative group member attribute mapping.
最后的注释行显示了替代的组成员属性映射。
We can also define additional attribute mapping to the "Custom Properties" field.
还可以定义到“Custom Properties”字段的额外属性映射。
If an entry needs some special attribute mapping, that can be achieved through this attribute.
如果一个条目需要某种特殊的属性映射，那么可以通过此属性获得。
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