DEGREE DISTRIBUTION OF A RANDOM GRAPH <k>=50 P(k)=e-sk<k>k 0.1 d Poisson Binomial 0.075 N=102 A N=103 ⊙ 0.05 N=104回 W=105可 0.025 0230今 尘44湖动 20 30 40 50 60 70 80 k K Network Science:Random Graphs DEGREE DISTRIBUTION OF A RANDOM GRAPH Network Science: Random Graphs P(k) k P(k) = e -<k> < k > k k! <k>=50