1. Beyond microblogging: conversation and collaboration via twitter;Honey,2009
2. Topic sentiment analysis in twitter: a graph-based hashtag sentiment classification approach;Wang,2011
3. Hashtag retrieval in a microblogging environment;Efron,2010
4. Conversational tagging in twitter;Huang,2010
5. Semantic enrichment of twitter posts for user profile construction on the social web;Abel,2011