Challenge: Recent large-scale pretrained language models excel in tasks requiring natural language understanding, but they often "hallucinate" plausible but incorrect content due to outdated or incorrect pretraining information.
Approach: They propose a public benchmark dataset to examine model’s behavior in knowledge conflict situations.
Outcome: The proposed model induces conflicts by asking about a common property among entities having the same name, resulting in questions with up to 8 distinctive answers.

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Challenge: Retrieval-Augmented Generation (RAG) is the prevailing paradigm for grounding Large Language Models.
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Knowledge Conflicts for LLMs: A Survey (2024.emnlp-main)

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Challenge: This survey examines knowledge conflicts for large language models (LLMs) this survey aims to shed light on strategies for improving the robustness of LLMs .
Approach: They focus on three categories of knowledge conflicts: context-memory, inter-context, and intra-membry conflict.
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Assessing and Mitigating Medical Knowledge Drift and Conflicts in Large Language Models (2025.findings-emnlp)

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Challenge: Rapid medical concept drift can lead LLMs to provide incorrect or outdated advice.
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RAG in the Wild: On the (In)effectiveness of LLMs with Mixture-of-Knowledge Retrieval Augmentation (2026.findings-acl)

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Challenge: Retrieval-augmented generation (RAG) enhances large language models by integrating external knowledge retrieved at inference time.
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DYNAMICQA: Tracing Internal Knowledge Conflicts in Language Models (2024.findings-emnlp)

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Challenge: LMs are useful in a variety of downstream applications from summarization to fact-checking, often relying on factual knowledge memorized during pre-training.
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A Survey of RAG-Reasoning Systems in Large Language Models (2025.findings-emnlp)

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Challenge: a survey of RAG-based reasoning-based approaches shows that it is not effective for multi-step inferences.
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LLMs Trust Humans More, That’s a Problem! Unveiling and Mitigating the Authority Bias in Retrieval-Augmented Generation (2025.acl-long)

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Challenge: Large language models (LLMs) generate outputs that stray from user input or contravene established knowledge.
Approach: They propose a new phenomenon, Authority Bias, where LLMs favor one knowledge source over the other . they propose atomic information that generates conflicts and a Conflict Detection Enhanced Query framework .
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Astute RAG: Overcoming Imperfect Retrieval Augmentation and Knowledge Conflicts for Large Language Models (2025.acl-long)

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Challenge: Existing studies have not linked the behavior of retrieval augmented generation (RAG) with imperfect retrieval, including irrelevant, misleading, or even malicious information.
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What Evidence Do Language Models Find Convincing? (2024.acl-long)

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Challenge: Current retrieval-augmented language models are tasked with subjective, contentious, and conflicting queries.
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Retrieval Helps or Hurts? A Deeper Dive into the Efficacy of Retrieval Augmentation to Language Models (2024.naacl-long)

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Challenge: Large language models (LMs) excel in retrieving popular facts, but encounter difficulty with infrequent entity-relation pairs compared to retrievers.
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