방법 비교

	Directed Modularity Analysis	Directed Community Detection
분야	네트워크 분석	네트워크 분석
계열	Machine learning	Machine learning
기원 연도	2008	2008
창시자	Leicht, E. A. & Newman, M. E. J.	Leicht, E. A. & Newman, M. E. J.; Rosvall, M. & Bergstrom, C. T.
유형	Community detection / graph partitioning	Graph partitioning / modularity optimization
원전	Leicht, E. A., & Newman, M. E. J. (2008). Community structure in directed networks. Physical Review Letters, 100(11), 118703.	Leicht, E. A. & Newman, M. E. J. (2008). Community structure in directed networks. Physical Review Letters, 100(11), 118703.
별칭	directed community detection via modularity, directed Q-modularity, digraph modularity optimization, Leicht-Newman modularity	directed graph clustering, community detection in digraphs, directed modularity optimization, directed network partitioning
관련	5	6
요약	Directed modularity analysis extends the classic Newman-Girvan modularity framework to directed graphs, where edges carry a source and a destination. Formalized by Leicht and Newman in 2008, it partitions nodes into communities by maximizing a modularity score that accounts for each node's separate in-degree and out-degree in the null model, making it the standard approach for community detection in citation networks, information flows, and other asymmetric relational data.	Directed community detection identifies densely interconnected groups of nodes in a directed network, accounting for the asymmetry of edges (e.g., A follows B does not imply B follows A). Adapting modularity or flow-based criteria to directed graphs reveals clusters that undirected methods systematically miss, making it essential for citation networks, follower graphs, and biological regulatory pathways.