College of Engineering: Recent submissions

Now showing items 341-360 of 8754

    • 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)
      We describe the fourth edition of the CheckThat! Lab, part of the 2021 Cross-Language Evaluation Forum (CLEF). The lab evaluates technology supporting various tasks related to factuality, and it is offered in Arabic, ...

    • Adaptive method for following dynamic topics on twitter 

      Magdy, Walid; Elsayed, Tamer ( The AAAI Press , 2014 , Conference)
      Many research social studies of public response on social media require following (i.e., tracking) topics on Twitter for long periods of time. The current approaches rely on streaming tweets based on some hashtags or ...

    • Improving tweet timeline generation by predicting optimal retrieval depth 

      Hasanain, Maram; Elsayed, Tamer; Magdy, Walid ( Springer Verlag , 2015 , Conference)
      Tweet Timeline Generation (TTG) systems provide users with informative and concise summaries of topics, as they developed over time, in a retrospective manner. In order to produce a tweet timeline that constitutes a summary ...

    • Query performance prediction for microblog search: A preliminary study 

      Hasanain, Maram; Malhas, Rana; Elsayed, Tamer ( Association for Computing Machinery, Inc , 2014 , Conference)
      Microblogging has recently become an integral part of the daily life of millions of people around the world. With a continuous flood of posts, microblogging services (e.g., Twitter) have to effectively handle millions of ...

    • QU at TREC-2014: Online Clustering with Temporal and Topical Expansion for Tweet Timeline Generation 

      Hasanain, Maram; Elsayed, Tamer ( National Institute of Standards and Technology (NIST) , 2014 , Conference)
      In this work, we present our participation in the microblog track in TREC-2014, building upon our first participation last year. We present our approaches for the two tasks of this year: temporally-anchored ad-hoc search ...

    • Detecting automatically-generated Arabic tweets 

      Almerekhi, Hind; Elsayed, Tamer ( Springer Verlag , 2015 , Conference)
      Recently, Twitter, one of the most widely-known social media platforms, got infiltrated by several automation programs, commonly known as "bots". Bots can be easily abused to spread spam and hinder information extraction ...

    • Identification of answer-seeking questions in Arabic microblogs 

      Hasanain, Maram; Elsayed, Tamer; Magdy, Walid ( Association for Computing Machinery , 2014 , Conference)
      Over the past years, Twitter has earned a growing reputation as a hub for communication, and events advertisement and tracking. However, several recent research studies have shown that Twitter users (and microblogging ...

    • QU-BIGIR at SemEval 2017 Task 3: Using Similarity Features for Arabic Community Question Answering Forums 

      Torki, Marwan; Hasanain, Maram; Elsayed, Tamer ( Association for Computational Linguistics (ACL) , 2017 , Conference)
      In this paper, we describe our QU-BIGIR system for the Arabic subtask D of the SemEval 2017 Task 3. Our approach builds on our participation in the past version of the same subtask. This year, our system uses different ...

    • Real, Live, and Concise: Answering Open-Domain Questions with Word Embedding and Summarization 

      Malhas, Rana; Torki, Marwan; Ali, Rahma; Yulianti, Evi; Elsayed, Tamer ( National Institute of Standards and Technology (NIST) , 2016 , Conference)
      Resorting to community question answering (CQA) websites for finding answers has gained momentum in the recent years with the explosive rate at which social media has been proliferating. With many questions left unanswered ...

    • QweetFinder: Real-time finding and filtering of question tweets 

      Albahem, Ameer; Hasanain, Maram; Torki, Marwan; Elsayed, Tamer ( Springer Verlag , 2017 , Conference)
      Users continuously ask questions and seek answers in social media platforms such as Twitter. In this demo, we present Qweet-Finder, a Web-based search engine that facilitates finding question tweets (Qweets) in Twitter. ...

    • QU at TREC-2013: Expansion Experiments for Microblog Ad hoc Search 

      Maram Hasanain; Latifa Al-Marri; Elsayed, Tamer ( National Institute of Standards and Technology (NIST) , 2013 , Conference)
      In the first appearance of Qatar University (QU) at Text REtrieval Conference (TREC), our submitted microblog runs explored different ways of expanding the context of both queries and tweets to overcome the sparsity and ...

    • Who can verify this? Finding authorities for rumor verification in Twitter 

      Haouari, Fatima; Elsayed, Tamer; Mansour, Watheq ( Elsevier , 2023 , Article)
      A large body of research work has proposed verification techniques for rumors spreading in social media that mainly relied on subjective evidence, e.g., propagation networks or user interactions. Alternatively, in this ...

    • ECAsT: a large dataset for conversational search and an evaluation of metric robustness 

      Al-Thani, Haya; Jansen, Bernard J.; Elsayed, Tamer ( PeerJ Inc. , 2023 , Article)
      The Text REtrieval Conference Conversational assistance track (CAsT) is an annual conversational passage retrieval challenge to create a large-scale open-domain conversational search benchmarking. However, as of yet, the ...

    • Unsupervised query reduction for efficient yet effective news background linking 

      Essam, Marwa; Elsayed, Tamer ( PeerJ Inc. , 2023 , Article)
      In this article, we study efficient techniques to tackle the news background linking problem, in which an online reader seeks background knowledge about a given article to better understand its context. Recently, this ...

    • Improving conversational search with query reformulation using selective contextual history 

      Al-Thani, Haya; Elsayed, Tamer; Jansen, Bernard J. ( Elsevier , 2023 , Article)
      Automated responses to questions for conversational agents, known as conversation passage retrieval, is challenging due to omissions and implied context in user queries. To help address this challenge, queries can be ...

    • Qur'an QA 2023 Shared Task: Overview of Passage Retrieval and Reading Comprehension Tasks over the Holy Qur'an 

      Malhas, Rana; Mansour, Watheq; Elsayed, Tamer ( Association for Computational Linguistics (ACL) , 2023 , Conference)
      Motivated by the need for intelligent question answering (QA) systems on the Holy Qur'an and the success of the first Qur'an Question Answering shared task (Qur'an QA 2022 at OSACT 2022), we have organized the second version ...

    • IDRISI-D: Arabic and English Datasets and Benchmarks for Location Mention Disambiguation over Disaster Microblogs 

      Suwaileh, Reem; Elsayed, Tamer; Imran, Muhammad ( Association for Computational Linguistics (ACL) , 2023 , Conference)
      Extracting and disambiguating geolocation information from social media data enables effective disaster management, as it helps response authorities; for example, locating incidents for planning rescue activities and ...

    • Overview of the CLEF-2023 CheckThat! Lab Task 5 on Authority Finding in Twitter 

      Haouari, Fatima; Elsayed, Tamer; Ali, Zien Sheikh ( CEUR-WS , 2023 , Conference)
      We present an overview of Task 5 of the sixth edition of the CheckThat! Lab, which is a part of the 2023 Conference and Labs of the Evaluation Forum (CLEF). In this Authority Finding task, participating systems are required ...

    • The CLEF-2023 CheckThat! Lab: Checkworthiness, Subjectivity, Political Bias, Factuality, and Authority 

      Barrón-Cedeño, Alberto; Alam, Firoj; Caselli, Tommaso; Da San Martino, Giovanni; Elsayed, Tamer; ... more authors ( Springer Science and Business Media Deutschland GmbH , 2023 , Conference)
      The five editions of the CheckThat! lab so far have focused on the main tasks of the information verification pipeline: check-worthiness, evidence retrieval and pairing, and verification. The 2023 edition of the lab zooms ...

    • Detecting Stance of Authorities Towards Rumors in Arabic Tweets: A Preliminary Study 

      Haouari, Fatima; Elsayed, Tamer ( Springer Science and Business Media Deutschland GmbH , 2023 , Conference)
      A myriad of studies addressed the problem of rumor verification in Twitter by either utilizing evidence from the propagation networks or external evidence from the Web. However, none of these studies exploited evidence ...