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   σ-Space for real-world networks: A correlation analysis of decay centrality vs. degree centrality and closeness centrality  
   
نویسنده meghanathan natarajan
منبع journal of king saud university - computer and information sciences - 2018 - دوره : 30 - شماره : 3 - صفحه:391 -403
چکیده    We analyze a suite of 48 real-world networks and compute the decay centrality (dec) of the vertices for the complete range of values for the decay parameter d e (0, 1) as well as determine the pearson’s correlation coefficient (pcc) between the decd values and degree centrality (deg) and closeness centrality (clc). we observe pcc(decσ, deg) to decrease with increase in d and pcc(decd, clc) to decrease with decrease in d. we define the σ-spacer for a real-world network with respect to the deg, dec, clc correlation as the difference between the maximum and minimum d values under which we observe a particular level of correlation (r) between the dec, deg and dec, clc metrics respectively. we show that the pcc(deg, clc) values for the real-world networks exhibit a very strongly positive correlation with the dspacer values and demonstrate that one could predict the σ-spacer value for a real-world network using the pcc(deg, clc) value for that network. we also analyze the impact of various topological measures on the σ-spacer values for the real-world networks.
کلیدواژه Decay centrality ,Decay parameter ,Closeness centrality ,Degree centrality ,Correlation ,Real-world network graphs
آدرس jackson state university, USA
پست الکترونیکی natarajan.meghanathan@jsums.edu
 
     
   
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