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Ivan Koychev

EXAMS: A Multi-Subject High School Examinations Dataset for Cross-Lingual and Multilingual Question Answering


Nov 05, 2020
Momchil Hardalov, Todor Mihaylov, Dimitrina Zlatkova, Yoan Dinkov, Ivan Koychev, Preslav Nakov

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* EMNLP 2020, 17 pages, 6 figures, 8 tables 
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Team Alex at CLEF CheckThat! 2020: Identifying Check-Worthy Tweets With Transformer Models


Sep 07, 2020
Alex Nikolov, Giovanni Da San Martino, Ivan Koychev, Preslav Nakov

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* CLEF-2020 
 * Check-worthiness; Fact-Checking; Veracity 
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Enriched Pre-trained Transformers for Joint Slot Filling and Intent Detection


Apr 30, 2020
Momchil Hardalov, Ivan Koychev, Preslav Nakov

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A Context-Aware Approach for Detecting Check-Worthy Claims in Political Debates


Dec 14, 2019
Pepa Gencheva, Ivan Koychev, Lluís Màrquez, Alberto Barrón-Cedeño, Preslav Nakov

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* RANLP-2017 
 * Check-worthiness; Fact-Checking; Veracity; Neural Networks. arXiv admin note: substantial text overlap with arXiv:1908.01328 
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In Search of Credible News


Nov 19, 2019
Momchil Hardalov, Ivan Koychev, Preslav Nakov

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* AIMSA-2016 
 * Credibility, veracity, fact checking, humor detection 
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Predicting the Leading Political Ideology of YouTube Channels Using Acoustic, Textual, and Metadata Information


Oct 20, 2019
Yoan Dinkov, Ahmed Ali, Ivan Koychev, Preslav Nakov

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* INTERSPEECH-2019 
 * media bias, political ideology, Youtube channels, propaganda, disinformation, fake news 
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Detecting Deception in Political Debates Using Acoustic and Textual Features


Oct 04, 2019
Daniel Kopev, Ahmed Ali, Ivan Koychev, Preslav Nakov

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* ASRU-2019 
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Beyond English-Only Reading Comprehension: Experiments in Zero-Shot Multilingual Transfer for Bulgarian


Sep 06, 2019
Momchil Hardalov, Ivan Koychev, Preslav Nakov

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* Accepted at RANLP 2019 (13 pages, 2 figures, 6 tables) 
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Fact-Checking Meets Fauxtography: Verifying Claims About Images


Aug 30, 2019
Dimitrina Zlatkova, Preslav Nakov, Ivan Koychev

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* EMNLP-2019 
 * Claims about Images; Fauxtography; Fact-Checking; Veracity; Fake News 
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Detecting Toxicity in News Articles: Application to Bulgarian


Aug 26, 2019
Yoan Dinkov, Ivan Koychev, Preslav Nakov

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* RANLP-2019 
 * Fact-checking, source reliability, political ideology, news media, Bulgarian, RANLP-2019. arXiv admin note: text overlap with arXiv:1810.01765 
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Beyond English-only Reading Comprehension: Experiments in Zero-Shot Multilingual Transfer for Bulgarian


Aug 05, 2019
Momchil Hardalov, Ivan Koychev, Preslav Nakov

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* Accepted at RANLP 2019 (13 pages, 2 figures, 6 tables) 
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Recursive Style Breach Detection with Multifaceted Ensemble Learning


Jun 17, 2019
Daniel Kopev, Dimitrina Zlatkova, Kristiyan Mitov, Atanas Atanasov, Momchil Hardalov, Ivan Koychev, Preslav Nakov

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* Accepted as regular paper at AIMSA 2018 
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Machine Reading Comprehension for Answer Re-Ranking in Customer Support Chatbots


Feb 26, 2019
Momchil Hardalov, Ivan Koychev, Preslav Nakov

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* Information 2019, 10, 82 
 * 13 pages, 1 figure, 4 tables 
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Towards Automated Customer Support


Sep 02, 2018
Momchil Hardalov, Ivan Koychev, Preslav Nakov

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* Accepted as regular paper at AIMSA 2018 
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We Built a Fake News & Click-bait Filter: What Happened Next Will Blow Your Mind!


Mar 10, 2018
Georgi Karadzhov, Pepa Gencheva, Preslav Nakov, Ivan Koychev

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* RANLP'2017, 7 pages, 1 figure 
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Building Chatbots from Forum Data: Model Selection Using Question Answering Metrics


Oct 02, 2017
Martin Boyanov, Ivan Koychev, Preslav Nakov, Alessandro Moschitti, Giovanni Da San Martino

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* RANLP-2017 
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Fully Automated Fact Checking Using External Sources


Oct 01, 2017
Georgi Karadzhov, Preslav Nakov, Lluis Marquez, Alberto Barron-Cedeno, Ivan Koychev

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* RANLP-2017 
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The Case for Being Average: A Mediocrity Approach to Style Masking and Author Obfuscation


Jul 28, 2017
Georgi Karadjov, Tsvetomila Mihaylova, Yasen Kiprov, Georgi Georgiev, Ivan Koychev, Preslav Nakov

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* Best of the Labs Track at CLEF-2017 
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Large-Scale Goodness Polarity Lexicons for Community Question Answering


Jul 20, 2017
Todor Mihaylov, Daniel Belchev, Yasen Kiprov, Ivan Koychev, Preslav Nakov

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* SIGIR '17, August 07-11, 2017, Shinjuku, Tokyo, Japan; Community Question Answering; Goodness polarity lexicons; Sentiment Analysis 
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