Community structure

prefLabel
  • Community Structure
definition
  • A community is a group of populations of plants and animals in a given place or an ecological unit used in a broad sense to include groups of various sizes and degrees of integration. Community structure can refer to the physical structure or to the biological structure of a community. The physical structure is what one sees when looking at a community. For example, in a forest, a primary structure is imposed by large trees, and a secondary structure is the understory trees and shrubs. Biological structure involves species composition and abundance, temporal changes in communities, and relationships between species in a community. 
broader
Abstract from DBPedia
    In the study of complex networks, a network is said to have community structure if the nodes of the network can be easily grouped into (potentially overlapping) sets of nodes such that each set of nodes is densely connected internally. In the particular case of non-overlapping community finding, this implies that the network divides naturally into groups of nodes with dense connections internally and sparser connections between groups. But overlapping communities are also allowed. The more general definition is based on the principle that pairs of nodes are more likely to be connected if they are both members of the same community(ies), and less likely to be connected if they do not share communities. A related but different problem is community search, where the goal is to find a community that a certain vertex belongs to.

    (Source: http://dbpedia.org/resource/Community_structure)

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