*Vertices 4
1 "AcmTDatabaseSyst" 0.0 0.0 0.0 x_fact 0.130753 y_fact 0.203975
2 "DataKnowlEng" 0.0 0.0 0.0 x_fact 0.690377 y_fact 0.910042
3 "LectNotesComputSc" 0.0 0.0 0.0 x_fact 4.497908 y_fact 98.666318
4 "VldbJ" 0.0 0.0 0.0 x_fact 0.073222 y_fact 0.219665
*Matrix 
0.000000 0.867480 0.770793 0.489488 
0.867480 0.000000 0.816191 0.438794 
0.770793 0.816191 0.000000 0.000000 
0.489488 0.438794 0.000000 0.000000