And subgraph patterns other activities involving analysis
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A substructure could be graphs, trees, and lattices are examples of diverse structural forms which can be used in conjunction with item sets or subsequences. [ CITATION MVe14 \l 1033 ]
3. Clustering
Clustering is a hot topic right now. Data mining, statistics, machine learning, spatial database technology, biology, and marketing are all contributing areas of research. Cluster analysis has lately been a hot issue in data mining research due to the massive volumes of data produced in databases. Clustering graphs entails clustering a (potentially huge) set of graphs based on their underlying structural behavior. The necessity to match the topologies of the underlying graphs and use these structures for clustering makes this challenge difficult. [ CITATION MVe14 \l 1033 ]