... CSIS,University of Limerick,IrelandXiaobin Shen§Department of Civil and EnvironmentalEngineering,University of Melbourne, AustraliaYingxin Wu¶National ICT AustraliaSchool of IT, University of Sydney,AustraliaKai ... Visualization and Analysis of Email NetworksXiaoyan Fu∗National ICT AustraliaSeok-Hee Hong†National ICT AustraliaSchool of IT, University of Sydney,AustraliaNikola S. Nikolov‡Department of CSIS,University ... Spherical drawing of the NICTA email network.4 DISPLAYING CENTRALITY ANALYSIS OF AN E-MAIL NET-WORK USING HIERARCHYCentrality in social network analysis is a measure of the impor-tance of a node...