Denis Janiak
PhD Student
Denis is working towards a PhD in the area of Bayesian representation learning. His interests covers mostly Bayesian, generative and probabilistic methods and their connection to neuroscience and cognition. He received MSc in Computer Science (specialty: Artificial Intelligence) from Wrocław University of Science and Technology in 2021. His has both academia and industry background; currently working in CLARIN project at WUST.
Research interests
- probability
- neuroscience
Research groups
Education
- 2021
MsC in Computer Science (Artificial Intelligence)
Wroclaw University of Science and Technology
Publications11
FactSelfCheck: Fact-Level Black-Box Hallucination Detection for LLMs
AK Sawczyn, J Binkowski, DP Janiak, T Kajdanowicz, B Gabrys
EACL 2026
Factual state discovery benchmark: evaluating fact elicitation in Polish tax law
M Bystroński, K Tagowski, DP Janiak, J Farganus, ŁM Augustyniak, T Kajdanowicz, …
ACL 2026
A geometry-based view of Mahalanobis OOD detection
DP Janiak, J Binkowski, T Kajdanowicz
Proceedings of the 43rd International Conference on Machine Learning, Seoul, South Korea, 6th-11th July 2026 1–32
The Illusion of Progress: Re-evaluating Hallucination Detection in LLMs
DP Janiak, J Binkowski, AK Sawczyn, T Kajdanowicz, B Gabrys, R Shwartz-Ziv
The 2025 Conference on Empirical Methods in Natural Language Processing, EMNLP 2025, November 4-9 34717–34734
Hallucination Detection in LLMs Using Spectral Features of Attention Maps
J Binkowski, DP Janiak, AK Sawczyn, T Kajdanowicz, B Gabrys
The 2025 Conference on Empirical Methods in Natural Language Processing, EMNLP 2025, November 4-9 24366–24397
Enhancing out-of-distribution detection through stochastic embeddings in self-supervised learning
DP Janiak, J Binkowski, P Bielak, T Kajdanowicz
ICCS 2024 337–351
Graph-level representations using ensemble-based readout functions
J Binkowski, AK Sawczyn, DP Janiak, P Bielak, T Kajdanowicz
ICCS 2023 393–405
This is the Way: Designing and Compiling LEPISZCZE, a Comprehensive NLP Benchmark for Polish
ŁM Augustyniak, K Tagowski, AK Sawczyn, DP Janiak, RD Bartusiak, A Szymczak, …, A Janz, P Szymański, T Kajdanowicz, M Piasecki, …
NeurIPS 2022 1–14
Fact-checking must go on!
J Binkowski, DP Janiak, AK Sawczyn, T Kajdanowicz, ŁM Augustyniak
Conference paper
Fact-checking: relevance assessment of references in the Polish political domain
AK Sawczyn, J Binkowski, DP Janiak, ŁM Augustyniak, T Kajdanowicz
Knowledge-Based and Intelligent Information & Engineering Systems: Proceedings of the 25th International Conference KES 2021 1285–1293 · Cited by 4