Challenge: Current approaches to large vision-language models rely on costly annotations and are not comprehensive in terms of evaluating all aspects.
Approach: They propose an automated method which can access LVLMs hallucination in an LLM-free and annotation-free way and model the dependency between different types of halluciNations.
Outcome: The proposed model can model the dependency between different types of hallucinations and generate Q&A pairs on any image dataset at minimal cost.

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Challenge: Large vision-language models exhibit excellent ability in language understanding, question answering, and conversations of visual inputs, but they are prone to producing hallucinations.
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AutoHallusion: Automatic Generation of Hallucination Benchmarks for Vision-Language Models (2024.findings-emnlp)

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Challenge: Large vision-language models are prone to hallucinations, where contextual cues in an image can trigger the language module to produce overconfident and incorrect reasoning about abnormal or hypothetical objects.
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Can We Trust AI Doctors? A Survey of Medical Hallucination in Large Language and Large Vision-Language Models (2025.findings-acl)

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Challenge: Hallucination is a critical challenge for large language models and large vision-language models (LVLMs) however, dedicated research on medical hallucinations remains unexplored.
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ANAH: Analytical Annotation of Hallucinations in Large Language Models (2024.acl-long)

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Challenge: a comprehensive and fine-grained measurement of the hallucination is crucial for LLMs' wide applications.
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Visual Hallucinations of Multi-modal Large Language Models (2024.findings-acl)

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Challenge: Existing studies find VH instances only in existing image datasets, which results in biased understanding of MLLMs’ performance under VH.
Approach: They propose a tool called VHTest to generate a diverse set of VH instances from existing image datasets and a text-to-image generative model to generate VH images based on the text descriptions.
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FaithScore: Fine-grained Evaluations of Hallucinations in Large Vision-Language Models (2024.findings-emnlp)

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Challenge: Large Language Models (LLMs) lack the capacity to handle multimodal inputs effectively.
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Fine-Grained Detection of Context-Grounded Hallucinations Using LLMs (2026.findings-acl)

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Challenge: Existing representations of hallucinations limit the types of errors that can be expressed, so we propose a new representation based on free-form textual descriptions, capturing the full range of possible errors.
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FG-PRM: Fine-grained Hallucination Detection and Mitigation in Language Model Mathematical Reasoning (2025.findings-emnlp)

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Challenge: Existing methods to detect hallucinations in large language models lack nuanced understanding of their types and manifestations.
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VALOR-EVAL: Holistic Coverage and Faithfulness Evaluation of Large Vision-Language Models (2024.findings-acl)

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Challenge: Existing evaluation methods focus on object hallucinations, focusing on object outputs . current evaluation methods struggle to address subtle semantic distinctions between outputs and reference data .
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FineSurE: Fine-grained Summarization Evaluation using LLMs (2024.acl-long)

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Challenge: Existing methods for text summarization evaluation do not correlate well with human judgments . evaluators that use Likert scale scores are limited in their ability to perform deeper analysis.
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