Browsing by Subject "Information retrieval"
Now showing items 1-20 of 22
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A fuzzy logic based irrigation system enhanced with wireless data logging applied to the state of Qatar
( Elsevier B.V. , 2013 , Article)In arid regions, developing environment and crop-specific irrigation scheduling that reduces water lost via evapotranspiration is a key to a sustainable and better managed irrigation. This paper presents a practical solution ... -
A new five-phase to three-phase back-to-back current source converter based wind energy conversion system
( IEEE , 2013 , Conference)Wind energy is one of the fastest growing renewable energy sources. The increased penetration of wind power into the utility grid brings challenges such as voltage and frequency fluctuations, generator torque ripples, and ... -
ArabicWeb16: A new crawl for today's Arabic Web
( Association for Computing Machinery, Inc , 2016 , Conference)Web crawls provide valuable snapshots of the Web which enable a wide variety of research, be it distributional analysis to characterize Web properties or use of language, content analysis in social science, or Information ... -
bigIR at TREC 2019: Graph-based Analysis for News Background Linking
( National Institute of Standards and Technology (NIST) , 2019 , Conference)Nowadays, it is very rare to find an online news article that is self-contained with everything a reader would want to know about the article's story. Therefore, it became vital for any article to contain links to other ... -
bigIR at TREC 2020: Simple but Deep Retrieval of Passages and Documents
( National Institute of Standards and Technology (NIST) , 2020 , Conference)In this paper, we present the participation of the bigIR team at Qatar University in the TREC Deep Learning 2020 track. We participated in both document and passage retrieval tasks, and each of its subtasks, full ranking ... -
bigIR at TREC 2021: Adopting Transfer Learning for News Background Linking
( National Institute of Standards and Technology (NIST) , 2021 , Conference)In this paper, we present the participation of the bigIR team at Qatar University in the TREC 2021 news track. We participated in the background linking task. The task mainly aims to retrieve news articles that provide ... -
CheckThat! at CLEF 2019: Automatic identification and verification of claims
( Springer Verlag , 2019 , Conference)We introduce the second edition of the CheckThat! Lab, part of the 2019 Cross-Language Evaluation Forum (CLEF). CheckThat! proposes two complementary tasks. Task 1: predict which claims in a political debate should be ... -
Cognitive relay-sharing by using hierarchical modulation under interference constraints
( Institute of Electrical and Electronics Engineers Inc. , 2014 , Conference)In this paper, we investigate relay-sharing in cognitive radio (CR) networks to improve the secondary user's (SU's) performance in the presence of interference. It is assumed that the relay is shared simultaneously between ... -
Deep learning models for sentiment analysis in arabic
( Association for Computational Linguistics (ACL) , 2015 , Conference)In this paper, deep learning framework is proposed for text sentiment classification in Arabic. Four different architectures are explored. Three are based on Deep Belief Networks and Deep Auto Encoders, where the input ... -
EveTAR: A new test collection for event detection in Arabic tweets
( Association for Computing Machinery, Inc , 2016 , Conference)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 ... -
Exploiting Live Feedback for Tweet Real-time Push Notifications
( National Institute of Standards and Technology (NIST) , 2017 , Conference)Twitter has been developed as an immense information creation and sharing network through which users post diverse information. Although a user would regularly check her Twitter timeline to stay up-to-date on her topics ... -
Light-weight, Conservative, yet Effective: Scalable Real-time Tweet Summarization
( National Institute of Standards and Technology (NIST) , 2016 , Conference)Microblogging platforms and Twitter specifically have become a major resource for exploring diverse topics of interest that vary from the world's breaking news to other topics such as sports, science, religion and even ... -
Mix and match: Collaborative expert-crowd judging for building test collections accurately and affordably
( CEUR-WS , 2018 , Conference)Crowdsourcing offers an affordable and scalable means to collect relevance judgments for information retrieval test collections. However, crowd assessors may showhigher variance in judgment quality than trusted assessors. ... -
Mobile app conceptual browser: Online marketplaces information extraction
( IEEE Computer Society , 2016 , Conference)Online marketplaces are e-commerce websites where thousands of products are provided by multiple third parties. There are dozens of these differently structured marketplaces that need to be visited by the end users to reach ... -
On the evaluation of tweet timeline generation task
( Springer Verlag , 2016 , Conference)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 ... -
QU at TREC-2013: Expansion Experiments for Microblog Ad hoc Search
( 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 ... -
QU at TREC-2014: Online Clustering with Temporal and Topical Expansion for Tweet Timeline Generation
( 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 ... -
QU at TREC-2015: Building Real-Time Systems for Tweet Filtering and Question Answering
( National Institute of Standards and Technology (NIST) , 2015 , Conference)This paper presents our participation in the microblog and LiveQA tracks in TREC-2015. Both tracks required building a "real-time" system that monitors a data stream and responds to users' information needs in real-time. ... -
QweetFinder: Real-time finding and filtering of question tweets
( 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. ... -
Studying effectiveness of Web search for fact checking
( John Wiley and Sons Inc , 2022 , Article)Web search is commonly used by fact checking systems as a source of evidence for claim verification. In this work, we demonstrate that the task of retrieving pages useful for fact checking, called evidential pages, is ...
