Tunable Domain-Independent Event Extraction in the MIRA Framework. - Georgi Georgiev 001; Kuzman Ganchev; Vassil Momtchev; Deyan Peychev; Preslav Nakov; Angus Roberts (BioNLP@HLT-NAACL (Shared Task), 2009)

Feature-Rich Named Entity Recognition for Bulgarian Using Conditional Random Fields. - Georgi Georgiev 001; Preslav Nakov; Kuzman Ganchev; Petya Osenova; Kiril Ivanov Simov (RANLP, 2009)

A Joint Model for Normalizing Gene and Organism Mentions in Text. - Georgi Georgiev 001; Preslav Nakov; Kuzman Ganchev; Deyan Peychev; Vassil Momtchev (BiomedicalIE@RANLP, 2009)

Bulgarian Question Answering for Machine Reading. - Kiril Ivanov Simov; Petya Osenova; Georgi Georgiev 001; Valentin Zhikov; Laura Tolosi (CLEF (Online Working Notes/Labs/Workshop), 2012)

Cross-Language Answer Validation. - Valentin Zhikov; Laura Tolosi; Petya Osenova; Kiril Ivanov Simov; Georgi Georgiev 001 (CLEF (Online Working Notes/Labs/Workshop), 2012)

Feature-Rich Part-of-speech Tagging for Morphologically Complex Languages: Application to Bulgarian. - Georgi Georgiev 001; Valentin Zhikov; Kiril Ivanov Simov; Petya Osenova; Preslav Nakov (EACL, 2012)

Khresmoi - Multilingual Semantic Search of Medical Text and Images. - Niraj Aswani; Thomas Beckers 002; Erich Birngruber; Célia Boyer; Andreas Burner; Jakub Bystron; Khalid Choukri; Sarah Cruchet; Hamish Cunningham; Jan Dedek; Ljiljana Dolamic; René Donner; et al. (MedInfo, 2013)

Combining POS Tagging, Dependency Parsing and Coreferential Resolution for Bulgarian. - Valentin Zhikov; Georgi Georgiev 001; Kiril Ivanov Simov; Petya Osenova (RANLP, 2013)

SU-FMI: System Description for SemEval-2014 Task 9 on Sentiment Analysis in Twitter. - Boris Velichkov; Borislav Kapukaranov; Ivan Grozev; Jeni Karanesheva; Todor Mihaylov; Yasen Kiprov; Preslav Nakov; Ivan Koychev; Georgi Georgiev 001 (SemEval@COLING, 2014)

Finding Opinion Manipulation Trolls in News Community Forums. - Todor Mihaylov; Georgi Georgiev 001; Preslav Nakov (CoNLL, 2015)

Exposing Paid Opinion Manipulation Trolls. - Todor Mihaylov; Ivan Koychev; Georgi Georgiev 001; Preslav Nakov (RANLP, 2015)

PANcakes Team: A Composite System of Domain-Agnostic Features For Author Profiling. - Pepa Gencheva; Martin Boyanov; Elena Deneva; Preslav Nakov; Georgi Georgiev 001; Yasen Kiprov; Ivan Koychev (CLEF (Working Notes), 2016)

SU@PAN'2016: Author Obfuscation. - Tsvetomila Mihaylova; Georgi Karadjov; Yasen Kiprov; Georgi Georgiev 001; Ivan Koychev; Preslav Nakov (CLEF (Working Notes), 2016)

Experiments in Authorship-Link Ranking and Complete Author Clustering. - Valentin Zmiycharov; Dimitar Alexandrov; Hristo Georgiev; Yasen Kiprov; Georgi Georgiev 001; Ivan Koychev; Preslav Nakov (CLEF (Working Notes), 2016)

The Case for Being Average: A Mediocrity Approach to Style Masking and Author Obfuscation - (Best of the Labs Track at CLEF-2017). - Georgi Karadzhov; Tsvetomila Mihaylova; Yasen Kiprov; Georgi Georgiev 001; Ivan Koychev; Preslav Nakov (CLEF, 2017)

The Case for Being Average: A Mediocrity Approach to Style Masking and Author Obfuscation. - Georgi Karadjov; Tsvetomila Mihaylova; Yasen Kiprov; Georgi Georgiev 001; Ivan Koychev; Preslav Nakov (CoRR, 2017)

The dark side of news community forums: opinion manipulation trolls. - Todor Mihaylov; Tsvetomila Mihaylova; Preslav Nakov; Lluís Màrquez; Georgi Georgiev 001; Ivan Koychev (Internet Res., 2018)

Generating Answer Candidates for Quizzes and Answer-Aware Question Generators. - Kristiyan Vachev; Momchil Hardalov; Georgi Karadzhov; Georgi Georgiev 001; Ivan Koychev; Preslav Nakov (CoRR, 2021)

Leaf: Multiple-Choice Question Generation. - Kristiyan Vachev; Momchil Hardalov; Georgi Karadzhov; Georgi Georgiev 001; Ivan Koychev; Preslav Nakov (ECIR (2), 2022)

OpenFactCheck: A Unified Framework for Factuality Evaluation of LLMs. - Hasan Iqbal; Yuxia Wang 003; Minghan Wang; Georgi Nenkov Georgiev; Jiahui Geng; Iryna Gurevych; Preslav Nakov (EMNLP (System Demonstrations), 2024)

Factuality of Large Language Models: A Survey. - Yuxia Wang 003; Minghan Wang; Muhammad Arslan Manzoor; Fei Liu 023; Georgi Nenkov Georgiev; Rocktim Jyoti Das; Preslav Nakov (EMNLP, 2024)

Factuality of Large Language Models in the Year 2024. - Yuxia Wang 003; Minghan Wang; Muhammad Arslan Manzoor; Fei Liu 023; Georgi Nenkov Georgiev; Rocktim Jyoti Das; Preslav Nakov (CoRR, 2024)

OpenFactCheck: A Unified Framework for Factuality Evaluation of LLMs. - Yuxia Wang 003; Minghan Wang; Hasan Iqbal; Georgi Nenkov Georgiev; Jiahui Geng; Preslav Nakov (CoRR, 2024)

OpenFactCheck: Building, Benchmarking Customized Fact-Checking Systems and Evaluating the Factuality of Claims and LLMs. - Yuxia Wang 003; Minghan Wang; Hasan Iqbal; Georgi Nenkov Georgiev; Jiahui Geng; Iryna Gurevych; Preslav Nakov (COLING, 2025)

FinChain: A Symbolic Benchmark for Verifiable Chain-of-Thought Financial Reasoning. - Zhuohan Xie; Dhruv Sahnan; Debopriyo Banerjee; Georgi Georgiev 001; Rushil Thareja; Hachem Madmoun; Jinyan Su; Aaryamonvikram Singh; Yuxia Wang 003; Rui Xing 002; Fajri Koto; Haonan Li 002; et al. (CoRR, 2025)

FinChain: A Symbolic Benchmark for Verifiable Chain-of-Thought Financial Reasoning. - Zhuohan Xie; Daniil Orel; Rushil Thareja; Dhruv Sahnan; Hachem Madmoun; Fan Zhang; Debopriyo Banerjee; Georgi Nenkov Georgiev; Xueqing Peng; Lingfei Qian; Jimin Huang; Jinyan Su; et al. (ACL (1), 2026)

The CLEF-2026 FinMMEval Lab: Multilingual and Multimodal Evaluation of Financial AI Systems. - Zhuohan Xie; Rania Elbadry; Fan Zhang; Georgi Georgiev 001; Xueqing Peng; Lingfei Qian; Jimin Huang; Dimitar Dimitrov 003; Vanshikaa Jani; Yuyang Dai; Jiahui Geng; Yuxia Wang 003; et al. (ECIR (4), 2026)

FinReporting: An Agentic Workflow for Localized Reporting of Cross-Jurisdiction Financial Disclosures. - Fan Zhang; Mingzi Song; Rania Elbadry; Yankai Chen 005; Shaobo Wang; Yixi Zhou; Xunwen Zheng; Yueru He; Yuyang Dai; Georgi Georgiev 001; Ayesha Gull; Muhammad Usman Safder; et al. (CoRR, 2026)