• Mobile agents rendezvous in spite of a malicious agent 

      Das S., Luccio F.L., Markou E. (2015)
      We examine the problem of rendezvous, i.e., having multiple mobile agents gather in a single node of the network. Unlike previous studies, we need to achieve rendezvous in presence of a very powerful adversary, a malicious ...
    • Socio-semantic query expansion using Twitter hashtags 

      Anagnostopoulos, I.; Kolias, V.; Mylonas, P. (2012)
      In this paper we introduce an algorithmic approach, capable of creating a semantic network with concatenated terms and phrases (hashtags) from collectively postings on the Twittersphere. This network could be exploited for ...