Keyphrases
- online social networks
- social networks
- spam filters
- web spam
- sina weibo
- spam detection
- social network analysis
- social media
- social relationships
- network structure
- social relations
- online social networking
- social networking
- social networking sites
- complex networks
- online social
- user activity
- social ties
- spam filtering
- information diffusion
- law enforcement
- social interaction
- link structure
- community detection
- link prediction
- online social media
- social behavior
- online communities
- viral marketing
- malicious activities