Traditional data mining focuses on the "flat" data in which each data object is represented as a vector of fixed-length attribute. Therefore, recent mining has become a field link that appears from the data mining, which has a large impact on various important applications such as text mining, social network analysis, collaborative filtering, and bioinformatics. ? On the other hand, due to the high popularity of data linkage, an extensive applications ranging from government organizations to commercial enterprises for the people call everyday life to explore the linkage of data mining techniques; people need such a reference book to systematically apply the link mining techniques for this application to develop related technologies.