• InfluenceTracker: Rating the impact of a twitter account 

      Razis, G.; Anagnostopoulos, I. (2014)
      This paper describes a methodology for rating the influence of a Twitter account in this famous microblogging service. Then it is evaluated over real accounts, under the belief that influence is not only a matter of quantity ...
    • Query expansion with a little help from twitter 

      Anagnostopoulos, I.; Razis, G.; Mylonas, P.; Anagnostopoulos, C. N. (2013)
      With the advent and rapid spread of microblogging services, web information management finds a new research topic. Although classical information retrieval methods and techniques help search engines and services to present ...