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Large Language Models (LLMs) have demonstrated remarkable capabilities in natural language generation and reasoning tasks. However, these models frequently produce hallucinated responses that appear fluent but lack factual grounding. Retrieval-Augmented Generation (RAG) has been proposed to mitigate this issue by incorporating external knowledge sources during response generation. Despite these improvements, traditional RAG systems still suffer from hallucinations due to irrelevant document retrieval, insufficient contextual grounding, and the absence of verification mechanisms. This paper proposes a Hallucination-Aware Adaptive Retrieval-Augmented Generation framework for knowledge-grounded question answering systems. The proposed framework introduces retrieval confidence evaluation and evidence alignment verification to ensure that generated responses remain consistent with retrieved documents. Additionally, an adaptive feedback mechanism enables dynamic response refinement when inconsistencies are detected. Experimental evaluation demonstrates that the proposed approach significantly reduces hallucination rates and improves factual accuracy compared to baseline methods.
Keywords:
Large Language Models, Retrieval-Augmented Generation, Knowledge-Grounded Question Answering, Hallucination Mitigation, Adaptive Retrieval, Evidence Verification
Cite Article:
"Hallucination-Aware Adaptive Retrieval-Augmented Generation for Knowledge-Grounded Question Answering Systems", International Journal for Research Trends and Innovation (www.ijrti.org), ISSN:2456-3315, Vol.11, Issue 3, page no.b230-b237, March-2026, Available :http://www.ijrti.org/papers/IJRTI2603128.pdf
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2456-3315 | IMPACT FACTOR: 8.14 Calculated By Google Scholar| ESTD YEAR: 2016
An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 8.14 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator