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~ similar to 2606.00919· 19 results

cs.CLcs.AIRecentMay 27, 2026

Hallucination Detection-Guided Preference Optimization for Clinical Summarization

Shamanth Kuthpadi Seethakantha, Dung Ngoc Thai, Vara Prasad Gudi, Simran Tiwari +5 more

The paper introduces two methods, ermodel and ermodel, to significantly reduce hallucinations in clinical summarization by using hallucination detectors to guide iterative revisions and subsequently…

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cs.CLcs.AIcs.CRRecentMay 12, 2026

REALISTA: Realistic Latent Adversarial Attacks that Elicit LLM Hallucinations

Buyun Liang, Jinqi Luo, Liangzu Peng, Kwan Ho Ryan Chan +5 more

The paper introduces REALISTA, a novel latent-space adversarial attack framework that generates semantically realistic and coherent prompts to effectively induce hallucinations in large language model…

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cs.AIRecentMay 27, 2026

Reasoning Matters: Mitigate Hallucination in Multimodal Large Reasoning Models via Reasoning-Conditioned Preference Optimization

Jiawei Kong, Hao Fang, Shunxiang Liao, Jinyu Li +4 more

The paper proposes Reasoning-Conditioned Direct Preference Optimization (RC-DPO) to effectively mitigate hallucinations in multimodal large reasoning models by explicitly conditioning the preference o…

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cs.LGstat.MLRecentJun 2, 2026

Conformal Language Modeling via Posterior Sampling

Nicolas Emmenegger, Theo X. Olausson, Armando Solar-Lezama, Chara Podimata

The paper proposes sampling directly from approximations of an LLM posterior, conditioned on high-scoring regions, to generate more coherent and useful text compared to existing post-hoc hallucination…

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cs.CLcs.AIcs.CYRecentMay 29, 2026

Toxic HallucinAItions: Perturbing Prompts and Tracing LLM Circuits

Soorya Ram Shimgekar, Agam Goyal, Amruta Parulekar, Joshua Chen +5 more

The paper demonstrates that increasing the toxicity of prompts significantly degrades the factual reliability of LLMs, a degradation linked to the selective amplification of perturbation-sensitive nod…

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cs.CLRecentMay 31, 2026

Med-HEAL: Analyzing and Mitigating Hallucinations in Medical LLMs with Hallucination-Aware In-Context Learning

Yiming Liao, Zeno Franco, Jose Eduardo Lizarraga Mazaba, Keke Chen

The paper introduces Med-HEAL, a comprehensive framework and dataset for systematically identifying and mitigating hallucinations in medical LLMs, demonstrating that a self-critique pipeline significa…

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cs.AIcs.MARecentMay 27, 2026

Hallucination Mitigation with Agentic AI, Nested Learning, and AI Sustainability via Semantic Caching

Diego Gosmar, Deborah A. Dahl

The paper proposes a memory-augmented, three-stage agentic pipeline that significantly reduces LLM hallucinations and improves operational efficiency by integrating semantic caching and advanced obser…

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cs.CVcs.AIRecentMay 29, 2026

What Makes LVLMs Hallucinate Less? Unveiling the Architectural Factors Behind Hallucination Robustness

Yusheng He, Jizhe Zhou, Xia Du, Zheng Lin +2 more

This paper systematically analyzes how different architectural components of Large Vision-Language Models (LVLMs) contribute to hallucination robustness, finding that joint enhancement of visual fidel…

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cs.CLcs.AIRecentMay 29, 2026

BenHalluEval: A Multi-Task Hallucination Evaluation Framework for Large Language Models on Bengali

Shefayat E Shams Adib, Ahmed Alfey Sani, Ekramul Alam Esham, Ajwad Abrar +2 more

The paper introduces BenHalluEval, the first dedicated multi-task framework for systematically evaluating hallucination in Large Language Models (LLMs) specifically for the Bengali language.

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cs.CLcs.LGRecentJun 1, 2026

Resonant Context Anchoring: Decoupling Attention Routing and Signal Gain at Inference Time

Mingkuan Zhao, Yide Gao, Wentao Hu, Suquan Chen +5 more

The paper proposes Resonant Context Anchoring (RCA), a lightweight, training-free method that enhances factual faithfulness in LLMs by dynamically amplifying the signal of external context evidence du…

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cs.CLRecentJun 1, 2026

DECK: A Consistency x Confidence Taxonomy of LLM Hallucinations

Mohit Singh Chauhan

The paper introduces the DECK taxonomy, a novel framework that classifies LLM hallucinations not by their content error, but by their detectability signature based on inter-sample consistency and toke…

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cs.CVcs.AIRecentMay 28, 2026

Mitigating Hallucination in Vision-Language Models through Barrier-Regulated Adaptive Closed-form Steering

Soumyadeep Jana, Pulkit Mittal, Sanasam Ranbir Singh

The paper proposes BRACS, a training-free steering framework that adaptively corrects visual grounding failures in large vision-language models, significantly reducing object hallucination without sac…

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cs.LGcs.CRRecentApr 13, 2026

Reducing Hallucination in Enterprise AI Workflows via Hybrid Utility Minimum Bayes Risk (HUMBR)

Chenhao Fang, Jordi Mola, Mark Harman, Jason Nawrocki +9 more

The paper introduces a Hybrid Utility Minimum Bayes Risk (HUMBR) framework to significantly reduce hallucinations in high-stakes enterprise AI workflows, outperforming standard consistency methods.

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cs.AIRecentMay 27, 2026

Entropy Distribution as a Fingerprint for Hallucinations in Generative Models

Mattia J. Villani, Pranav Deshpande, Akshay Seshadri, Romina Yalovetzky +1 more

The paper introduces the Calibrated Entropy Score (CES), a single-pass, black-box method that uses the distribution of token-level entropies to detect model hallucinations with high accuracy and forma…

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cs.CVcs.CLRecentMay 29, 2026

Learning from Fine-Grained Visual Discrepancies: Mitigating Multimodal Hallucinations via In-Context Visual Contrastive Optimization

Haolin Deng, Xin Zou, Zhiwei Jin, Chen Chen +2 more

The paper proposes In-Context Visual Contrastive Optimization (IC-VCO) to rigorously mitigate multimodal hallucinations in Vision-Language Models by optimizing contrastive learning within a shared mul…

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cs.CLcs.CRRecentMay 9, 2026

BiAxisAudit: A Novel Framework to Evaluate LLM Bias Across Prompt Sensitivity and Response-Layer Divergence

Jialing Gan, Junhao Dong, Songze Li

The paper introduces BiAxisAudit, a novel framework that evaluates LLM bias by analyzing bias scores across multiple prompt formats and within the internal inconsistency of model responses, revealing…

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cs.AIcs.CRRecentMay 18, 2026

Safety Geometry Collapse in Multimodal LLMs and Adaptive Drift Correction

Jiahe Guo, Xiangran Guo, Jiaxuan Chen, Weixiang Zhao +5 more

This paper introduces the concept of Safety Geometry Collapse, demonstrating that multimodal inputs degrade the safety separation of LLMs, and proposes ReGap, a training-free method that adaptively co…

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cs.AIcs.CRRecentMay 18, 2026

Hallucination as Exploit: Evidence-Carrying Multimodal Agents

Guijia Zhang, Hao Zheng, Harry Yang

The paper introduces Evidence-Carrying Agents (ECA) to prevent multimodal agents from executing privileged actions based on unsupported or hallucinated perceptual claims, achieving near-zero unsafe ex…

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cs.AIcs.LGRecentMay 29, 2026

TIGER: Traceable Inference with Graph-Based Evidence Routing for Mitigating Hallucinations in Multimodal Generation

Kaixiang Zhao, Tianrun Yu, Shawn Huang, Porter Jenkins +2 more

TIGER is an inference-time framework that uses graph-based evidence routing to independently assess and repair unsupported facts (hallucinations) in multimodal generation.

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