WSDM
2012
ACM
12 years 10 days ago
2012
ACM
It is well known that different types of social ties have essentially different influence between people. However, users in online social networks rarely categorize their contact...
ECAL
2007
Springer
13 years 8 months ago
2007
Springer
Often the selfish and strong are believed to be favored by natural selection, even though cooperative interactions thrive at all levels of organization in living systems. Recent em...