activity
20232026
most citedUnveiling the Potential of Probabilistic Embeddings in Self-Supervised Learning

1 citations · 1 across the 10 of their papers we have counts for

collaborators

10 papers

cs.LG2026

KG-Guard: Graph-Based Hallucination Detection for Knowledge Base Question Answering

Albert Sawczyn, Piotr Bielak, Tomasz Kajdanowicz

Large language models (LLMs) are increasingly used for knowledge base question answering (KBQA), where answering requires selecting entities from a question-specific knowledge-grap…

cs.CL2026

Attention Sinks as Internal Signals for Hallucination Detection in Large Language Models

Jakub Binkowski, Kamil Adamczewski, Tomasz Kajdanowicz

Large language models frequently exhibit hallucinations: fluent and confident outputs that are factually incorrect or unsupported by the input context. While recent hallucination d…

cs.LG2025

A Geometry-Based View of Mahalanobis OOD Detection

Denis Janiak, Jakub Binkowski, Tomasz Kajdanowicz

Out-of-distribution (OOD) detection is critical for reliable deployment of vision models. Mahalanobis-based detectors remain strong baselines, yet their performance varies widely a…

cs.CL2025

The Illusion of Progress: Re-evaluating Hallucination Detection in LLMs

Denis Janiak, Jakub Binkowski, Albert Sawczyn +3

Large language models (LLMs) have revolutionized natural language processing, yet their tendency to hallucinate poses serious challenges for reliable deployment. Despite numerous h…

cs.LG2025

FactSelfCheck: Fact-Level Black-Box Hallucination Detection for LLMs

Albert Sawczyn, Jakub Binkowski, Denis Janiak +2

Large Language Models (LLMs) frequently generate hallucinated content, posing significant challenges for applications where factuality is crucial. While existing hallucination dete…

cs.LG2025

Hallucination Detection in LLMs Using Spectral Features of Attention Maps

Jakub Binkowski, Denis Janiak, Albert Sawczyn +2

Large Language Models (LLMs) have demonstrated remarkable performance across various tasks but remain prone to hallucinations. Detecting hallucinations is essential for safety-crit…

cs.AI2024

Developing PUGG for Polish: A Modern Approach to KBQA, MRC, and IR Dataset Construction

Albert Sawczyn, Katsiaryna Viarenich, Konrad Wojtasik +4

Advancements in AI and natural language processing have revolutionized machine-human language interactions, with question answering (QA) systems playing a pivotal role. The knowled…

cs.LG2024

Empowering Small-Scale Knowledge Graphs: A Strategy of Leveraging General-Purpose Knowledge Graphs for Enriched Embeddings

Albert Sawczyn, Jakub Binkowski, Piotr Bielak +1

Knowledge-intensive tasks pose a significant challenge for Machine Learning (ML) techniques. Commonly adopted methods, such as Large Language Models (LLMs), often exhibit limitatio…

cs.LG2024

Representation learning in multiplex graphs: Where and how to fuse information?

Piotr Bielak, Tomasz Kajdanowicz

In recent years, unsupervised and self-supervised graph representation learning has gained popularity in the research community. However, most proposed methods are focused on homog…

cs.LG2023★ 1 cited

Unveiling the Potential of Probabilistic Embeddings in Self-Supervised Learning

Denis Janiak, Jakub Binkowski, Piotr Bielak +1

In recent years, self-supervised learning has played a pivotal role in advancing machine learning by allowing models to acquire meaningful representations from unlabeled data. An i…