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Build an Agentic RAG system using Langchain, Ollama and Milvus by Stephen Batifol
Learn how to build an advanced RAG system with Langchain, Ollama & Milvus. Master vector databases, query routing, and context-aware AI for more accurate, transparent results.
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RAG (Retrieval Augmented Generation) helps reduce LLM hallucinations by grounding responses in actual data and providing more transparency in AI systems
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Vector databases are essential for scaling RAG systems, supporting features like:
- Similarity search across multiple data types (text, audio, images)
- Metadata filtering
- Hybrid search capabilities
- GPU acceleration for large-scale deployments
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Agentic RAG improves upon basic RAG by adding:
- Query routing
- Multi-turn conversations
- Memory/context awareness
- Self-reflection capabilities
- Tool integration
- Task planning
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Key considerations for implementing RAG:
- Choose embedding models carefully based on language and use case
- Properly chunk documents for effective retrieval
- Use the same embedding model for both document processing and queries
- Consider scalability requirements (from millions to billions of vectors)
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Technical stack components highlighted:
- Langchain for building LLM applications
- Ollama for running LLMs locally
- Milvus for vector storage and retrieval
- Support for multiple programming languages (Python, Java, Go, Node.js)
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Challenges addressed by RAG systems:
- Processing unstructured data
- Working with private knowledge bases
- Handling multilingual content
- Managing multi-question queries
- Document summarization limitations