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频繁子图挖掘主要涉及到子图搜索和子图同构问题。
Frequent subgraph mining includes subgraph search and isomorphism problems.
图同构的判定性问题是图论理论中的一个难题，至今没有得到彻底解决。
How to determine the isomorphism of graphs is a difficult problem of graph theory, which has not been completely solved so far.
通过逐一考查全体特征值，实现图同构的判定并确定同构图的顶点对应关系。
After all the eigenvalues have been considered, isomorphism will be determined and correspondence of vertices in isomorphic graphs can be ultimately identified.
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