FactSelfCheck: Fact-Level Black-Box Hallucination Detection for LLMs
Albert K. Sawczyn, Jakub Binkowski, Denis P Janiak, Tomasz Kajdanowicz, Bogdan Gabrys
EACL 2026
2026
Profile
Albert Sawczyn
PhD Student
Albert graduated in BSc in Computer Science and MSc in Data Science, both from Wroclaw University of Science and Technology. He became passionate about general Artificial Intelligence as he started learning programming in a high school. His past developed and deployed projects are both scientific and commercial. He was fortunate to work on thematically diversified projects, covering signal processing, reinforcement learning, natural language processing and graph processing. His current work is placed in the field of learning representation of knowledge graphs and its applications.
Research interests
- Graph Representation Learning
- Natural Language Processing
- Unsupervised Learning
- Self-Supervised learning
Research groups
Education
- 2020
BSc in Computer Science
Wrocław University of Science and Technology
- 2021
MSc in Data Science
Wrocław University of Science and Technology
Publications10
The Illusion of Progress: Re-evaluating Hallucination Detection in LLMs
Denis P. Janiak, Jakub Binkowski, Albert K Sawczyn, Tomasz Kajdanowicz, Bogdan Gabrys, Ravid Shwartz-Ziv
Proceedings of the 2025 Conference on Empirical Methods in Natural Language Processing
2025
Hallucination Detection in LLMs Using Spectral Features of Attention Maps
Jakub Binkowski, Denis P Janiak, Albert K Sawczyn, Tomasz Kajdanowicz, Bogdan Gabrys
Proceedings of the 2025 Conference on Empirical Methods in Natural Language Processing
2025
Developing PUGG for Polish: A Modern Approach to KBQA, MRC, and IR Dataset Construction
Albert K. Sawczyn, Katsiaryna Viarenich, Konrad D Wojtasik, Aleksandra Domogała, Marcin Ł Oleksy, Maciej Piasecki, Tomasz Kajdanowicz
Association for Computational Linguistics
2024
Empowering Small-Scale Knowledge Graphs: A Strategy of Leveraging General-Purpose Knowledge Graphs for Enriched Embeddings
Albert K. Sawczyn, Jakub Binkowski, Piotr Bielak, Tomasz Kajdanowicz
International Committee on Computational Linguistic, 2024]
2024
Graph-level representations using ensemble-based readout functions
Jakub Binkowski, Albert K Sawczyn, Denis P Janiak, Piotr Bielak, Tomasz Kajdanowicz
Lecture notes in computer science
2023
A deeper look at Graph Embedding RetroFitting
Piotr Bielak, Jakub Binkowski, Albert K Sawczyn, Katsiaryna Viarenich, Daria Puchalska, Tomasz Kajdanowicz
Journal of Computational Science
2023
This is the Way: Designing and Compiling LEPISZCZE, a Comprehensive NLP Benchmark for Polish
Łukasz M. Augustyniak, Kamil Tagowski, Albert K Sawczyn, Denis P Janiak, Roman D Bartusiak, Adrian Szymczak, Marcin Wątroba, Arkadiusz Janz, Piotr Szymański, Tomasz Kajdanowicz, Maciej Piasecki, Mikołaj Morzy
Advances in Neural Information Processing Systems
2022
Fact-checking must go on!
Jakub Binkowski, Denis P Janiak, Albert K Sawczyn, Tomasz Kajdanowicz, Łukasz M Augustyniak
W: ML in PL Conference 2021, virtual-only, 5-7 November 2021. [B.m. : b.wyd., 2021]
2021
Fact-checking: relevance assessment of references in the Polish political domain
Albert K. Sawczyn, Jakub Binkowski, Denis P Janiak, Łukasz M Augustyniak, Tomasz Kajdanowicz
Procedia Computer Science
2021