10 techniques to improve RAG accuracy
Blog post from Redis
Retrieval-augmented generation (RAG) is a technique that combines large language models (LLMs) with domain-specific knowledge to improve factual accuracy and reduce hallucinations in AI-generated outputs. The process involves enhancing retrieval strategies through methods such as hybrid search, tuning Hierarchical Navigable Small World (HNSW) indices, and optimizing document chunking. Fine-tuning embeddings and LLMs for specific domains can increase precision by aligning with nuanced language and domain-specific requirements. Semantic caching and long-term memory management ensure efficient and consistent responses, particularly in stable knowledge bases or multi-turn dialogues. Additional techniques like query transforms and re-ranking help refine and prioritize retrieved data, while employing an LLM as a judge can evaluate the faithfulness of responses. Redis supports these methods through its AI stack, including the Redis Query Engine, enabling scalable and efficient experimentation and implementation.
| Trend | Post Mentions | Total Month Mentions | Posts | Companies | MoM |
|---|---|---|---|---|---|
| Vector Search | 22 | 2,109 | 372 | 139 | +21% |
| LLM | 20 | 5,114 | 794 | 234 | +10% |
| RAG | 18 | 1,164 | 239 | 91 | -12% |
| AI Model Fine-tuning | 5 | 885 | 195 | 78 | +71% |
| AI Agents | 1 | 2,799 | 605 | 208 | +19% |
| Observability | 1 | 2,380 | 502 | 161 | +9% |
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