Ivan Koychev

Orcid: 0000-0003-3919-030X

According to our database1, Ivan Koychev authored at least 68 papers between 2000 and 2024.

Collaborative distances:
  • Dijkstra number2 of five.
  • Erdős number3 of four.

Timeline

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Bibliography

2024
EXAMS-V: A Multi-Discipline Multilingual Multimodal Exam Benchmark for Evaluating Vision Language Models.
CoRR, 2024

2023
Detecting Check-Worthy Claims in Political Debates, Speeches, and Interviews Using Audio Data.
CoRR, 2023

FMI-SU at SemEval-2023 Task 7: Two-level Entailment Classification of Clinical Trials Enhanced by Contextual Data Augmentation.
Proceedings of the The 17th International Workshop on Semantic Evaluation, 2023

Looking for Traces of Textual Deepfakes in Bulgarian on Social Media.
Proceedings of the 14th International Conference on Recent Advances in Natural Language Processing, 2023

Enriched Pre-trained Transformers for Joint Slot Filling and Intent Detection.
Proceedings of the 14th International Conference on Recent Advances in Natural Language Processing, 2023

Fusion @ BioASQ MedProcNER: Transformer-based Approach for Procedure Recognition and Linking in Spanish Clinical Text.
Proceedings of the Working Notes of the Conference and Labs of the Evaluation Forum (CLEF 2023), 2023

Gpachov at CheckThat!-2023: A Diverse Multi-approach Ensemble for Subjectivity Detection in News Articles.
Proceedings of the Working Notes of the Conference and Labs of the Evaluation Forum (CLEF 2023), 2023

FedSym: Unleashing the Power of Entropy for Benchmarking the Algorithms for Federated Learning.
Proceedings of the IEEE International Conference on Big Data, 2023

bgGLUE: A Bulgarian General Language Understanding Evaluation Benchmark.
Proceedings of the 61st Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers), 2023

2022
Tool for Automatic Annotation of Clinical Texts in Bulgarian - BGMedAnno.
Proceedings of the Information Systems and Grid Technologies, Sofia, Bulgaria, May 27, 2022

CrowdChecked: Detecting Previously Fact-Checked Claims in Social Media.
Proceedings of the 2nd Conference of the Asia-Pacific Chapter of the Association for Computational Linguistics and the 12th International Joint Conference on Natural Language Processing, 2022

StructExtSum - Bulgarian Legislation Text Extractive Summarization by Structure Understanding.
Proceedings of the 15th International Conference Education and Research in the Information Society, Plovdiv, Bulgaria, October 13, 2022

Leaf: Multiple-Choice Question Generation.
Proceedings of the Advances in Information Retrieval, 2022

DuoSearch: A Novel Search Engine for Bulgarian Historical Documents.
Proceedings of the Advances in Information Retrieval, 2022

2021
Generating Answer Candidates for Quizzes and Answer-Aware Question Generators.
CoRR, 2021

A Comparative Study on Abstractive and Extractive Approaches in Summarization of European Legislation Documents.
Proceedings of the International Conference on Recent Advances in Natural Language Processing (RANLP 2021), 2021

Comparative Analysis of Fine-tuned Deep Learning Language Models for ICD-10 Classification Task for Bulgarian Language.
Proceedings of the International Conference on Recent Advances in Natural Language Processing (RANLP 2021), 2021

Predicting the Factuality of Reporting of News Media Using Observations about User Attention in Their YouTube Channels.
Proceedings of the International Conference on Recent Advances in Natural Language Processing (RANLP 2021), 2021

A Comparative Study of Extractive and Abstractive Approaches for Automatic Text Summarization on Scientific Texts.
Proceedings of the 14th International Conference Education and Research in the Information Society, 2021

2020
Automatic Generation of Annotated Corpora of Diagnoses with ICD-10 codes based on Open Data and Linked Open Data.
Proceedings of the 2020 Federated Conference on Computer Science and Information Systems, 2020

EXAMS: A Multi-subject High School Examinations Dataset for Cross-lingual and Multilingual Question Answering.
Proceedings of the 2020 Conference on Empirical Methods in Natural Language Processing, 2020

Team Alex at CLEF CheckThat! 2020: Identifying Check-Worthy Tweets With Transformer Models.
Proceedings of the Working Notes of CLEF 2020, 2020

Cascading Approach for Automatic ICD-10 Codes Association To Diseases in Bulgarian.
Proceedings of the Contemporary Methods in Bioinformatics and Biomedicine and Their Applications, 2020

AI-driven Approach for Automatic Synthetic Patient Status Corpus Generation.
Proceedings of the AIVR 2020: 4th International Conference on Artificial Intelligence and Virtual Reality, 2020

2019
Machine Reading Comprehension for Answer Re-Ranking in Customer Support Chatbots.
Inf., 2019

A Context-Aware Approach for Detecting Check-Worthy Claims in Political Debates.
CoRR, 2019

Deep learning contextual models for prediction of sport event outcome from sportsman's interviews.
Proceedings of the International Conference on Recent Advances in Natural Language Processing, 2019

Beyond English-Only Reading Comprehension: Experiments in Zero-shot Multilingual Transfer for Bulgarian.
Proceedings of the International Conference on Recent Advances in Natural Language Processing, 2019

Detecting Toxicity in News Articles: Application to Bulgarian.
Proceedings of the International Conference on Recent Advances in Natural Language Processing, 2019

Predicting the Leading Political Ideology of YouTube Channels Using Acoustic, Textual, and Metadata Information.
Proceedings of the Interspeech 2019, 2019

Fact-Checking Meets Fauxtography: Verifying Claims About Images.
Proceedings of the 2019 Conference on Empirical Methods in Natural Language Processing and the 9th International Joint Conference on Natural Language Processing, 2019

Detecting Deception in Political Debates Using Acoustic and Textual Features.
Proceedings of the IEEE Automatic Speech Recognition and Understanding Workshop, 2019

2018
The dark side of news community forums: opinion manipulation trolls.
Internet Res., 2018

Tweety at SemEval-2018 Task 2: Predicting Emojis using Hierarchical Attention Neural Networks and Support Vector Machine.
Proceedings of The 12th International Workshop on Semantic Evaluation, 2018

An Ensemble-Rich Multi-Aspect Approach Towards Robust Style Change Detection: Notebook for PAN at CLEF 2018.
Proceedings of the Working Notes of CLEF 2018, 2018

Recursive Style Breach Detection with Multifaceted Ensemble Learning.
Proceedings of the Artificial Intelligence: Methodology, Systems, and Applications, 2018

Towards Automated Customer Support.
Proceedings of the Artificial Intelligence: Methodology, Systems, and Applications, 2018

2017
Finding People's Professions and Nationalities Using Distant Supervision - The FMI@SU "goosefoot" team at the WSDM Cup 2017 Triple Scoring Task.
CoRR, 2017

The Case for Being Average: A Mediocrity Approach to Style Masking and Author Obfuscation.
CoRR, 2017

Generating Labeled Datasets of Twitter Users.
Proceedings of the Adjunct Publication of the 25th Conference on User Modeling, 2017

Large-Scale Goodness Polarity Lexicons for Community Question Answering.
Proceedings of the 40th International ACM SIGIR Conference on Research and Development in Information Retrieval, 2017

Do Not Trust the Trolls: Predicting Credibility in Community Question Answering Forums.
Proceedings of the International Conference Recent Advances in Natural Language Processing, 2017

Fully Automated Fact Checking Using External Sources.
Proceedings of the International Conference Recent Advances in Natural Language Processing, 2017

We Built a Fake News / Click Bait Filter: What Happened Next Will Blow Your Mind!
Proceedings of the International Conference Recent Advances in Natural Language Processing, 2017

A Context-Aware Approach for Detecting Worth-Checking Claims in Political Debates.
Proceedings of the International Conference Recent Advances in Natural Language Processing, 2017

Building Chatbots from Forum Data: Model Selection Using Question Answering Metrics.
Proceedings of the International Conference Recent Advances in Natural Language Processing, 2017

The Case for Being Average: A Mediocrity Approach to Style Masking and Author Obfuscation - (Best of the Labs Track at CLEF-2017).
Proceedings of the Experimental IR Meets Multilinguality, Multimodality, and Interaction, 2017

2016
SUper Team at SemEval-2016 Task 3: Building a Feature-Rich System for Community Question Answering.
Proceedings of the 10th International Workshop on Semantic Evaluation, 2016

PMI-cool at SemEval-2016 Task 3: Experiments with PMI and Goodness Polarity Lexicons for Community Question Answering.
Proceedings of the 10th International Workshop on Semantic Evaluation, 2016

Experiments in Authorship-Link Ranking and Complete Author Clustering.
Proceedings of the Working Notes of CLEF 2016, 2016

SU@PAN'2016: Author Obfuscation.
Proceedings of the Working Notes of CLEF 2016, 2016

PANcakes Team: A Composite System of Domain-Agnostic Features For Author Profiling.
Proceedings of the Working Notes of CLEF 2016, 2016

In Search of Credible News.
Proceedings of the Artificial Intelligence: Methodology, Systems, and Applications, 2016

2015
Exposing Paid Opinion Manipulation Trolls.
Proceedings of the Recent Advances in Natural Language Processing, 2015

Semi-supervised Multi-view Sentiment Analysis.
Proceedings of the Computational Collective Intelligence - 7th International Conference, 2015

SU@PAN'2015: Experiments in Author Profiling.
Proceedings of the Working Notes of CLEF 2015, 2015

2014
SU-FMI: System Description for SemEval-2014 Task 9 on Sentiment Analysis in Twitter.
Proceedings of the 8th International Workshop on Semantic Evaluation, 2014

Social News Feed Recommender.
Proceedings of the Artificial Intelligence: Methodology, Systems, and Applications, 2014

2012
Computationally effective algorithm for information extraction and online review mining.
Proceedings of the 2nd International Conference on Web Intelligence, Mining and Semantics, 2012

2005
Tracking Drifting Concepts by Time Window Optimisation.
Proceedings of the Research and Development in Intelligent Systems XXII, 2005

A Propositional Approach to Textual Case Indexing.
Proceedings of the Knowledge Discovery in Databases: PKDD 2005, 2005

Textual Feature Construction from Keywords.
Proceedings of the 6th International Conference on Case-Based Reasoning, 2005

2004
Within-Document Retrieval: A User-Centred Evaluation of Relevance Profiling.
Inf. Retr., 2004

The Robert Gordon University's HARD Track Experiments at TREC 2004.
Proceedings of the Thirteenth Text REtrieval Conference, 2004

Feature Selection and Generalisation for Retrieval of Textual Cases.
Proceedings of the Advances in Case-Based Reasoning, 7th European Conference, 2004

2003
Query-Based Document Skimming: A User-Centred Evaluation of Relevance Profiling.
Proceedings of the Advances in Information Retrieval, 2003

2002
Tracking Changing User Interests through Prior-Learning of Context.
Proceedings of the Adaptive Hypermedia and Adaptive Web-Based Systems, 2002

2000
Learning to recommend from positive evidence.
Proceedings of the 5th International Conference on Intelligent User Interfaces, 2000


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