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Table 1 Statistics of the Slashdot and Epinions datasets

From: Distributed stochastic gradient descent for link prediction in signed social networks

  Slashdot Epinions
Number of users 77,357 131,828
Number of known edges 516,575 841,372
Percentage of positive known edges 76.7% 85.3%
Percentage of negative known edges 23.3% 14.7%