Link Prediction Methods and Their Accuracy for Different Social Networks and Network Metrics

Table 2

Dataset details.

Dataset name	Train time range	Test time range	Sample; nodes	Final; nodes
Enron E-mail Communication	1998/11–2001/12	2002/01–2002/07	8000	5208
Facebook Wall Posts	2008/01–2008/11	2008/12–2009/01	8000	5784
Flickr Friendship	Snapshot on 2006/11/02	2006/11/03–2006/12/03 & 2007/02/03–2007/05/18	6000	5949
PWr E-mail Communication	2008/11–2009/04	2009/04-2009/05	8000	5208
UC Irvine Messages	2004/03–2004/08	2004/08–2004/10	1899	1666
YouTube Friendship	Snapshot on 2006/12/10	2006/12/11–2007/01/15 & 2007/02/08–2007/07/23	6000	6000

The time range of train and test set, the number of sample nodes selected from the original dataset and number of nodes in the giant component which are used as the final nodes set for the experiment are presented in the table.