• ArCov-19: The First Arabic COVID-19 Twitter Database with Propagation Networks 

      Haouari, Fatima; Hasanain, Maram; Suwaileh, Reem; Elsayed, Tamer ( Cornel University , 2020 , Article  &   Video)
      In this paper, we present ArCOV-19, an Arabic COVID-19 Twitter dataset that covers the period from 27th of January till 31st of March 2020. ArCOV-19 is the first publicly-available Arabic Twitter dataset covering COVID-19 ...
    • ArTest: The First Test Collection for Arabic Web Search with Relevance Rationales 

      Hasanain, Maram; Barkallah, Yassmine; Suwaileh, Reem; Kutlu, Mucahid; Elsayed, Tamer ( Association for Computing Machinery, Inc , 2020 , Conference Paper)
      The scarcity of Arabic test collections has long hindered information retrieval (IR) research over the Arabic Web. In this work, we present ArTest, the first large-scale test collection designed for the evaluation of ad-hoc ...
    • EveTAR: A new test collection for event detection in Arabic tweets 

      Almerekhi, Hind; Hasanain, Maram; Elsayed, Tamer ( Association for Computing Machinery, Inc , 2016 , Conference Paper)
      Research on event detection in Twitter is often obstructed by the lack of publicly-available evaluation mechanisms such as test collections; this problem is more severe when considering the scarcity of them in languages ...
    • On the evaluation of tweet timeline generation task 

      Magdy, Walid; Elsayed, Tamer; Hasanain, Maram ( Springer Verlag , 2016 , Conference Paper)
      Tweet Timeline Generation (TTG) task aims to generate a timeline of relevant but novel tweets that summarizes the development of a given topic. A typical TTG system first retrieves tweets then detects novel tweets among ...
    • Overview of the CLEF-2019 Checkthat! LAB: Automatic identification and verification of claims. Task 2: Evidence and factuality 

      Hasanain, Maram; Suwaileh, Reem; Elsayed, Tamer; Barrón-Cedeño, Alberto; Nakov, Preslav ( CEUR-WS , 2019 , Conference Paper)
      We present an overview of the second edition of the CheckThat! Lab at CLEF 2019. The lab featured two tasks in two different languages: English and Arabic. Task 1 (English) challenged the participating systems to predict ...
    • Overview of the CLEF–2021 CheckThat! Lab on Detecting Check-Worthy Claims, Previously Fact-Checked Claims, and Fake News 

      Nakov, Preslav; Da San Martino, Giovanni; Elsayed, Tamer; Barrón-Cedeño, Alberto; Míguez, Rubén; ... more authors ( Springer Science and Business Media Deutschland GmbH , 2021 , Conference Paper)
      We describe the fourth edition of the CheckThat! Lab, part of the 2021 Conference and Labs of the Evaluation Forum (CLEF). The lab evaluates technology supporting tasks related to factuality, and covers Arabic, Bulgarian, ...
    • Query performance prediction for microblog search 

      Hasanain, Maram; Elsayed, Tamer ( Elsevier Ltd , 2017 , Article)
      Query performance prediction (QPP) is the task of estimating the effectiveness of a retrieval system given a search query in the absence of any feedback from the searcher. The task has been proven to be very challenging, ...
    • Tahaqqaq: A Real-Time System for Assisting Twitter Users in Arabic Claim Verification 

      Ali, Zien Sheikh; Mansour, Watheq; Haouari, Fatima; Hasanain, Maram; Elsayed, Tamer; ... more authors ( Association for Computing Machinery, Inc , 2023 , Conference Paper)
      Over the past years, notable progress has been made towards fighting misinformation spread over social media, encouraging the development of many fact-checking systems. However, systems that operate over Arabic content are ...
    • What questions do journalists ask on Twitter? 

      Hasanain, Maram; Bagdouri, Mossaab; Elsayed, Tamer; Oard, Douglas W. ( AI Access Foundation , 2016 , Conference Paper)
      Social media platforms are a major source of information for both the general public and for journalists. Journalists use Twitter and other social media services to gather story ideas, to find eyewitnesses, and for a wide ...