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Sfoglia per Soggetto "Twitter"

Items 1-10 di 10

    • Evaluation of influential properties in twitter 

      Razis G., Anagnostopoulos I. (2019)
      In this paper we describe a methodology for measuring the influence and impact of Twitter accounts, by combining their activity, social degree and disseminated content. Experimental results show that the accuracy of our ...

    • 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 ...

    • Real time enhanced random sampling of online social networks 

      Haralabopoulos, G.; Anagnostopoulos, I. (2014)
      Social graphs can be easily extracted from Online Social Networks (OSNs). However, as the size and evolution of this kind of networks increases over time, conventional sampling methods used to evaluate large graph information ...

    • Real Time Sentiment Change Detection of Twitter Data Streams 

      Tasoulis S.K., Vrahatis A.G., Georgakopoulos S.V., Plagianakos V.P. (2018)
      In the past few years, there has been a huge growth in Twitter sentiment analysis having already provided a fair amount of research on sentiment detection of public opinion among Twitter users. Given the fact that Twitter ...

    • Semantic query suggestion using Twitter Entities 

      Anagnostopoulos, I.; Razis, G.; Mylonas, P.; Anagnostopoulos, C. N. (2015)
      There are many web information management methods and techniques that help search engines and news services to provide useful suggestions with respect to queries, thus facilitating the users' search. However, the penetration ...

    • Semantic social modeling of online user-generated content 

      Ραζής, Γεράσιμος (2019)

    • Semantifying twitter: The influence tracker ontology 

      Razis, G.; Anagnostopoulos, I. (2014)
      In this paper, we propose an ontology schema towards semantification provision of Twitter social analytics. The ontology is deployed over a publicly available service that measures how influential a Twitter account is, by ...

    • Text Analysis of COVID-19 Tweets 

      Theocharopoulos P.C., Tsoukala A., Georgakopoulos S.V., Tasoulis S.K., Plagianakos V.P. (2022)
      During the COVID-19 pandemic many countries were forced to implement lockdowns to prevent further spread of the SARS-CoV-2, prohibiting people from face-to-face social interactions. This unprecedented circumstance led to ...

    • Thematic labeling of Twitter accounts using DBpedia properties 

      Razis G., Anagnostopoulos I., Saloun P. (2016)
      In this paper, we propose an iterative algorithm towards the automatic labeling of Twitter accounts in respect to thematic categories derived from DBpedia properties. We describe the rationale behind the selection of these ...