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Batch-Softmax Contrastive Loss for Pairwise Sentence Scoring Tasks


Oct 10, 2021
Anton Chernyavskiy, Dmitry Ilvovsky, Pavel Kalinin, Preslav Nakov

* batch-softmax contrastive loss, pairwise sentence scoring, classification, ranking, and regression 

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The Spread of Propaganda by Coordinated Communities on Social Media


Sep 27, 2021
Kristina Hristakieva, Stefano Cresci, Giovanni Da San Martino, Mauro Conti, Preslav Nakov


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Analyzing the Use of Character-Level Translation with Sparse and Noisy Datasets


Sep 27, 2021
Jörg Tiedemann, Preslav Nakov

* RANLP-2013 
* machine translation, character-level, pivoting, cascade models, character alignment, phrase table filtering 

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Translating from Morphologically Complex Languages: A Paraphrase-Based Approach


Sep 27, 2021
Preslav Nakov, Hwee Tou Ng

* ACL-2011 
* machine translation, morphologically complex languages, paraphrases (word, phrase, and sentence level), infelctional morphology, derivational morphology, Malay, Indonesian 

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Sentiment Analysis in Twitter for Macedonian


Sep 27, 2021
Dame Jovanoski, Veno Pachovski, Preslav Nakov

* RANLP-2015 
* sentiment analysis, Twitter, Macedonian 

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Feature-Rich Named Entity Recognition for Bulgarian Using Conditional Random Fields


Sep 26, 2021
Georgi Georgiev, Preslav Nakov, Kuzman Ganchev, Petya Osenova, Kiril Ivanov Simov

* RANLP-2009 
* named entity recognition, NER, conditional random fields, CRF, Bulgarian, BulTreeBank 

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SUper Team at SemEval-2016 Task 3: Building a feature-rich system for community question answering


Sep 26, 2021
Tsvetomila Mihaylova, Pepa Gencheva, Martin Boyanov, Ivana Yovcheva, Todor Mihaylov, Momchil Hardalov, Yasen Kiprov, Daniel Balchev, Ivan Koychev, Preslav Nakov, Ivelina Nikolova, Galia Angelova

* SemEval-2016 
* community question answering, question-question similarity, question-comment similarity, answer reranking 

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Exposing Paid Opinion Manipulation Trolls


Sep 26, 2021
Todor Mihaylov, Ivan Koychev, Georgi Georgiev, Preslav Nakov

* RANLP-2015 
* opinion manipulation trolls, trolls, opinion manipulation, community forums, news media 

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Improved statistical machine translation using monolingual paraphrases


Sep 25, 2021
Preslav Nakov

* ECAI-2008 
* machine translation, SMT, paraphrasing, data augmentation. arXiv admin note: substantial text overlap with arXiv:1912.01113 

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Overview of the CLEF-2019 CheckThat!: Automatic Identification and Verification of Claims


Sep 25, 2021
Tamer Elsayed, Preslav Nakov, Alberto Barrón-Cedeño, Maram Hasanain, Reem Suwaileh, Giovanni Da San Martino, Pepa Atanasova

* CLEF-2019 
* Check-worthiness Estimation, Fact-Checking, Veracity, Evidence-based Verification, Fake News Detection, Computational Journalism, Disinformation, Misinformation. arXiv admin note: text overlap with arXiv:2012.09263 by other authors 

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Detecting Harmful Memes and Their Targets


Sep 24, 2021
Shraman Pramanick, Dimitar Dimitrov, Rituparna Mukherjee, Shivam Sharma, Md. Shad Akhtar, Preslav Nakov, Tanmoy Chakraborty

* ACL-2021 (Findings) 
* harmful memes, multimodality, social media 

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RuleBert: Teaching Soft Rules to Pre-trained Language Models


Sep 24, 2021
Mohammed Saeed, Naser Ahmadi, Preslav Nakov, Paolo Papotti

* EMNLP-2021 
* Logical reasoning, soft Horn rules, Transformers, pre-trained language models, combining symbolic and probabilistic methods, BERT 

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Findings of the NLP4IF-2021 Shared Tasks on Fighting the COVID-19 Infodemic and Censorship Detection


Sep 23, 2021
Shaden Shaar, Firoj Alam, Giovanni Da San Martino, Alex Nikolov, Wajdi Zaghouani, Preslav Nakov, Anna Feldman

* NLP4IF-2021 
* COVID-19, infodemic, harmfulness, check-worthiness, censorship, social media, tweets, Arabic, Bulgarian, English, Chinese 

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Overview of the CLEF--2021 CheckThat! Lab on Detecting Check-Worthy Claims, Previously Fact-Checked Claims, and Fake News


Sep 23, 2021
Preslav Nakov, Giovanni Da San Martino, Tamer Elsayed, Alberto Barrón-Cedeño, Rubén Míguez, Shaden Shaar, Firoj Alam, Fatima Haouari, Maram Hasanain, Watheq Mansour, Bayan Hamdan, Zien Sheikh Ali, Nikolay Babulkov, Alex Nikolov, Gautam Kishore Shahi, Julia Maria Struß, Thomas Mandl, Mucahid Kutlu, Yavuz Selim Kartal

* CLEF-2021 
* Check-Worthiness Estimation, Fact-Checking, Veracity, Evidence-based Verification, Detecting Previously Fact-Checked Claims, Social Media Verification, Computational Journalism, COVID-19 

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MOMENTA: A Multimodal Framework for Detecting Harmful Memes and Their Targets


Sep 22, 2021
Shraman Pramanick, Shivam Sharma, Dimitar Dimitrov, Md Shad Akhtar, Preslav Nakov, Tanmoy Chakraborty

* The paper has been accepted in the Findings of Empirical Methods in Natural Language Processing (EMNLP), 2021 

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A Second Pandemic? Analysis of Fake News About COVID-19 Vaccines in Qatar


Sep 22, 2021
Preslav Nakov, Firoj Alam, Shaden Shaar, Giovanni Da San Martino, Yifan Zhang

* RANLP-2021 
* COVID-19, disinformation, misinformation, factuality, fact-checking, fact-checkers, check-worthiness, framing, harmfulness, social media platforms, social media 

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Assisting the Human Fact-Checkers: Detecting All Previously Fact-Checked Claims in a Document


Sep 14, 2021
Shaden Shaar, Firoj Alam, Giovanni Da San Martino, Preslav Nakov

* detecting previously fact-checked claims, fact-checking, disinformation, fake news, social media, political debates 

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Few-Shot Cross-Lingual Stance Detection with Sentiment-Based Pre-Training


Sep 13, 2021
Momchil Hardalov, Arnav Arora, Preslav Nakov, Isabelle Augenstein


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Generating Answer Candidates for Quizzes and Answer-Aware Question Generators


Aug 29, 2021
Kristiyan Vachev, Momchil Hardalov, Georgi Karadzhov, Georgi Georgiev, Ivan Koychev, Preslav Nakov

* RANLP-2021 (SRW) 
* answer generation, question generation, answer-aware question generation, quiz questions, question answering 

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Interpretable Propaganda Detection in News Articles


Aug 29, 2021
Seunghak Yu, Giovanni Da San Martino, Mitra Mohtarami, James Glass, Preslav Nakov

* RANLP-2021 
* propaganda, propaganda techniques, disinformation, misinformation, fake news, explainability, interpretability 

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Predicting the Factuality of Reporting of News Media Using Observations About User Attention in Their YouTube Channels


Aug 27, 2021
Krasimira Bozhanova, Yoan Dinkov, Ivan Koychev, Maria Castaldo, Tommaso Venturini, Preslav Nakov

* RANLP-2021 
* Factuality, disinformation, misinformation, fake news, Youtube channels, propaganda, attention cycles 

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AraStance: A Multi-Country and Multi-Domain Dataset of Arabic Stance Detection for Fact Checking


May 18, 2021
Tariq Alhindi, Amal Alabdulkarim, Ali Alshehri, Muhammad Abdul-Mageed, Preslav Nakov

* Accepted to the 2021 Workshop on NLP4IF: Censorship, Disinformation, and Propaganda 

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SemEval-2021 Task 6: Detection of Persuasion Techniques in Texts and Images


Apr 25, 2021
Dimitar Dimitrov, Bishr Bin Ali, Shaden Shaar, Firoj Alam, Fabrizio Silvestri, Hamed Firooz, Preslav Nakov, Giovanni Da San Martino

* SemEval-2021 
* propaganda, disinformation, misinformation, fake news, memes, multimodality 

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WhatTheWikiFact: Fact-Checking Claims Against Wikipedia


Apr 16, 2021
Anton Chernyavskiy, Dmitry Ilvovsky, Preslav Nakov

* fact-checking, veracity, factuality, stance detection, evidence retrieval, fake news, FEVER, Wikipedia 

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Cross-Domain Label-Adaptive Stance Detection


Apr 15, 2021
Momchil Hardalov, Arnav Arora, Preslav Nakov, Isabelle Augenstein


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The Role of Context in Detecting Previously Fact-Checked Claims


Apr 15, 2021
Shaden Shaar, Firoj Alam, Giovanni Da San Martino, Preslav Nakov

* detecting previously fact-checked claims, fact-checking, disinformation, fake news, social media, political debates 

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Transformers: "The End of History" for NLP?


Apr 09, 2021
Anton Chernyavskiy, Dmitry Ilvovsky, Preslav Nakov

* Transformers, NLP, BERT, RoBERTa, XLNet 

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A Neighbourhood Framework for Resource-Lean Content Flagging


Mar 31, 2021
Sheikh Muhammad Sarwar, Dimitrina Zlatkova, Momchil Hardalov, Yoan Dinkov, Isabelle Augenstein, Preslav Nakov


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A Survey on Predicting the Factuality and the Bias of News Media


Mar 16, 2021
Preslav Nakov, Husrev Taha Sencar, Jisun An, Haewoon Kwak

* factuality of reporting, fact-checking, political ideology, media bias, disinformation, propaganda, social media, news media 

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