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資源簡介

LOUVAIN——社交網(wǎng)絡(luò)挖掘之大規(guī)模網(wǎng)絡(luò)的社區(qū)發(fā)現(xiàn)算法,matlab實現(xiàn)版本,輸入n*n矩陣,輸出劃分結(jié)果及q值

資源截圖

代碼片段和文件信息

function?[MQ]=community_louvain(WgammaM0B)
%COMMUNITY_LOUVAIN?????Optimal?community?structure
%
%???M?????=?community_louvain(W);
%???[MQ]?=?community_louvain(Wgamma);
%???[MQ]?=?community_louvain(WgammaM0);
%???[MQ]?=?community_louvain(WgammaM0‘potts‘);
%???[MQ]?=?community_louvain(WgammaM0‘negative_asym‘);
%???[MQ]?=?community_louvain(W[][]B);
%
%???The?optimal?community?structure?is?a?subdivision?of?the?network?into
%???nonoverlapping?groups?of?nodes?which?maximizes?the?number?of?within-
% group?edges?and?minimizes?the?number?of?between-group?edges.
%
%???This?function?is?a?fast?and?accurate?multi-iterative?generalization?of
%???the?Louvain?community?detection?algorithm.?This?function?subsumes?and
%???improves?upon
% modularity_louvain_und.m?modularity_finetune_und.m
% modularity_louvain_dir.m?modularity_finetune_dir.m
%???????modularity_louvain_und_sign.m
% and?additionally?allows?to?optimize?other?objective?functions?(includes
% built-in?Potts-model?Hamiltonian?allows?for?custom?objective-function
% matrices).
%
%???Inputs:
%???????W
%???????????directed/undirected?weighted/binary?connection?matrix?with
%???????????positive?and?possibly?negative?weights.
%???????gamma
%???????????resolution?parameter?(optional)
%???????????????gamma>1????????detects?smaller?modules
%???????????????0<=gamma<1?????detects?larger?modules
%???????????????gamma=1????????classic?modularity?(default)
%???????M0
%???????????initial?community?affiliation?vector?(optional)
%???????B
%???????????objective-function?type?or?custom?objective?matrix?(optional)
%???????????‘modularity‘???????modularity?(default)
%???????????‘potts‘????????????Potts-model?Hamiltonian?(for?binary?networks)
%???????????‘negative_sym‘?????symmetric?treatment?of?negative?weights
%???????????‘negative_asym‘????asymmetric?treatment?of?negative?weights
%???????????B??????????????????custom?objective-function?matrix
%
%???????????Note:?see?Rubinov?and?Sporns?(2011)?for?a?discussion?of
%???????????symmetric?vs.?asymmetric?treatment?of?negative?weights.
%
%???Outputs:
%???????M
%???????????community?affiliation?vector
%???????Q
%???????????optimized?community-structure?statistic?(modularity?by?default)
%
%???Example:
%???????%?Iterative?community?finetuning.
%???????%?W?is?the?input?connection?matrix.
%???????n??=?size(W1);?????????????%?number?of?nodes
%???????M??=?1:n;???????????????????%?initial?community?affiliations
%???????Q0?=?-1;?Q1?=?0;????????????%?initialize?modularity?values
%???????while?Q1-Q0>1e-5;???????????%?while?modularity?increases
%???????????Q0?=?Q1;????????????????%?perform?community?detection
%???????????[M?Q1]?=?community_louvain(W?[]?M);
%???????end
%
%???References:
%???????Blondel?et?al.?(2008)??J.?Stat.?Mech.?P10008.
%???????Reichardt?and?Bornholdt?(2006)?Phys.?Rev.?E?74?016110.
%???????Ronhovde?and?Nussinov?(2008)?Phys.?Rev.?E?80?016109
%???????Sun?et?al.?(2008)?Europhysics?Lett?86?28004.
%???????Rubinov?and?Sporns?(2011)?

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