Insights into Classifying and Mitigating LLMs' Hallucinations
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Abstract (arXiv)
The widespread adoption of large language models (LLMs) across diverse AI applications is proof of the outstanding achievements obtained in several tasks, such as text mining, text generation, and question answering. However, LLMs are not exempt from drawbacks. One of the most concerning aspects regards the emerging problematic phenomena known as "Hallucinations". They manifest in text generation systems, particularly in question-answering systems reliant on LLMs, potentially resulting in false or misleading information propagation. This paper delves into the underlying causes of AI hallucination and elucidates its significance in artificial intelligence. In particular, Hallucination classification is tackled over several tasks (Machine Translation, Question and Answer, Dialog Systems, Summarisation Systems, Knowledge Graph with LLMs, and Visual Question Answer). Additionally, we explore potential strategies to mitigate hallucinations, aiming to enhance the overall reliability of LLMs. Our research addresses this critical issue within the HeReFaNMi (Health-Related Fake News Mitigation) project, generously supported by NGI Search, dedicated to combating Health-Related Fake News dissemination on the Internet. This endeavour represents a concerted effort to safeguard the integrity of information dissemination in an age of evolving AI technologies.
Key facts. Cited by 6 papers in the map (data through 7 Oct 2026). Builds on 50 of its 58 references that are in the map. First posted on arXiv 14 Nov 2023.
Builds on
50 of 58 references.
References · 50
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38 more
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Built on by
Citing papers per year: 2024: 1; 2025: 5.
6 papers.
- 2025LLM Post-Training: A Deep Dive into Reasoning Large Language Modelscited by 129
- 2024"Not Aligned" is Not "Malicious": Being Careful about Hallucinations of Large Language Models' Jailbreakcited by 23
- 2025HACK: Hallucinations Along Certainty and Knowledge Axescited by 6
- 2025Schema-Guided Scene-Graph Reasoning based on Multi-Agent Large Language Model Systemcited by 5
- 2025U2F: Encouraging SWE-Agent to Seize Novelty without Losing Feasibilitycited by 1
- 2025Learning to Choose or Choosing to Learn: Best-of-N vs. Supervised Fine-Tuning for Bit String Generationcited by 0
- 2025U2F: Encouraging SWE-Agent to Seize Novelty without Losing Feasibility5 Nov 2025
- 2025HACK: Hallucinations Along Certainty and Knowledge Axes28 Oct 2025
- 2025Learning to Choose or Choosing to Learn: Best-of-N vs. Supervised Fine-Tuning for Bit String Generation22 May 2025
- 2025LLM Post-Training: A Deep Dive into Reasoning Large Language Models28 Feb 2025
- 2025Schema-Guided Scene-Graph Reasoning based on Multi-Agent Large Language Model System5 Feb 2025
- 2024"Not Aligned" is Not "Malicious": Being Careful about Hallucinations of Large Language Models' Jailbreak17 Jun 2024