Community Common Definition: A community is a set of nodes among which the connections are relatively dense and strong or interactions are relatively frequent t A network has a community structure if the network can naturally be divided into groups of nodes with dense internal connections and sparse external connections e Community Detection(grouping, clustering) To find cohesive subgroups Applications Understanding interactions between people(or systems) Visualizing and navigating on large-scale networks Forming bases for other tasks such as data miningCommunity ⸙ Common Definition: A community is a set of nodes among which the connections are relatively dense and strong or interactions are relatively frequent ⸙ A network has a community structure if the network can naturally be divided into groups of nodes with dense internal connections and sparse external connections ⸙ Community Detection (grouping, clustering) To find cohesive subgroups ⸙ Applications Understanding interactions between people (or systems) Visualizing and navigating on large-scale networks Forming bases for other tasks such as data mining …