*Vertices 4
1 "AcmTDatabaseSyst" 0.0 0.0 0.0 x_fact 8.044164 y_fact 13.091483
2 "IeeeTKnowlDataEn" 0.0 0.0 0.0 x_fact 12.776025 y_fact 37.223975
3 "SigmodRec" 0.0 0.0 0.0 x_fact 3.785489 y_fact 5.835962
4 "VldbJ" 0.0 0.0 0.0 x_fact 23.028391 y_fact 43.848580
*Matrix 
0.000000 0.692839 0.615750 0.786861 
0.692839 0.000000 0.208724 0.513577 
0.615750 0.208724 0.000000 0.911733 
0.786861 0.513577 0.911733 0.000000