# Bridging Semantic Gaps in RAG through Generated Context Knowledge Fusion

> Source: <https://www.machinebrief.com/news/bridging-semantic-gaps-in-rag-through-generated-context-know-j0cu>
> Published: 2026-09-30 04:00:00+00:00

arXiv:2609.37171v1 Announce Type: new 
Abstract: Retrieval-Augmented Generation has established itself as a fundamental framework in natural language processing, seamlessly integrating information retrieval with the generative capabilities of large language models. However, this process is fundamentally constrained by a critical challenge: semantic space mismatch between queries and retrieved contexts. We propose Knowledge-Aware Semantic Bridging (KASB), a novel framework that improves passage selection quality through semantic space alignment between queries and retrieved documents through intelligent knowledge fusion. Our approach leverages the complementary strengths of generative and retrieval-based knowledge through a multistage process that enhances both relevance and accuracy. We evaluate KASB on three popular open-domain Question Answering datasets to demonstrate the effectiveness of our approach.