Design a RAG system with evaluation
Design a Retrieval-Augmented Generation (RAG) System with Evaluation
Scenario
You are tasked with designing a Retrieval-Augmented Generation (RAG) system. This system will answer user questions by drawing information from a private corpus of documents, such as internal documentation, PDF files, or knowledge base articles. For each component of your design, you must describe its functionality and detail how you would evaluate its performance and effectiveness.
Requirements
The RAG system must fulfill the following core requirements:
- Support natural-language question-answering over the private document corpus.
- Be able to handle frequent updates to the underlying documents (e.g., new documents added, existing ones changed).
- Provide clear citations or traceability back to the original source documents for generated answers.
- Exhibit low latency to ensure an interactive user experience.
- Actively reduce instances of hallucination and ensure that all generated answers are firmly grounded in the retrieved context.
Key Areas to Cover
Your design discussion should comprehensively address the following aspects:
- End-to-End Architecture: Outline the complete system architecture and describe the data flow through its various stages.
- Document Ingestion and Preprocessing: Detail the process for parsing, cleaning, and chunking documents from the private corpus.
- Embedding Strategy and Indexing: Explain your approach to generating embeddings and indexing them, considering options like vector databases or hybrid search solutions.
- Retrieval and Reranking: Describe how queries are understood, how top-k documents are retrieved, how filters might be applied, and if and how reranking would be utilized.
- Prompting and Generation: Explain the strategy for assembling context into prompts and how the final answer is generated by the Language Model.
- Safety, Guardrails, and Fallback: Discuss mechanisms for ensuring safety, implementing guardrails, and defining fallback behaviors when retrieval confidence is low.
- Comprehensive Evaluation Plan: Propose a detailed plan for evaluating the quality of each critical stage:
- Ingestion and chunking quality.
- Retrieval quality.
- Reranking quality (if applicable).
- Generation quality and grounding.
- End-to-end user success.
- Online Monitoring and Continuous Improvement: Describe how the system will be monitored in production and how a continuous improvement loop will be established.
AI interview prep
Core dilemma
Balancing the freshness and comprehensiveness of a dynamic private corpus (frequent updates, diverse document types) with the need for low-latency, accurate, and grounded LLM responses, all while establishing a robust and measurable evaluation framework for every component.
3 tradeoffs and 3 stress tests locked
Interview prep
Unlock the interviewer X-Ray rubric, tradeoff matrix, stress tests, clarifying questions, and key concepts.
Design a RAG system with evaluation
Design a Retrieval-Augmented Generation (RAG) System with Evaluation
Scenario
You are tasked with designing a Retrieval-Augmented Generation (RAG) system. This system will answer user questions by drawing information from a private corpus of documents, such as internal documentation, PDF files, or knowledge base articles. For each component of your design, you must describe its functionality and detail how you would evaluate its performance and effectiveness.
Requirements
The RAG system must fulfill the following core requirements:
- Support natural-language question-answering over the private document corpus.
- Be able to handle frequent updates to the underlying documents (e.g., new documents added, existing ones changed).
- Provide clear citations or traceability back to the original source documents for generated answers.
- Exhibit low latency to ensure an interactive user experience.
- Actively reduce instances of hallucination and ensure that all generated answers are firmly grounded in the retrieved context.
Key Areas to Cover
Your design discussion should comprehensively address the following aspects:
- End-to-End Architecture: Outline the complete system architecture and describe the data flow through its various stages.
- Document Ingestion and Preprocessing: Detail the process for parsing, cleaning, and chunking documents from the private corpus.
- Embedding Strategy and Indexing: Explain your approach to generating embeddings and indexing them, considering options like vector databases or hybrid search solutions.
- Retrieval and Reranking: Describe how queries are understood, how top-k documents are retrieved, how filters might be applied, and if and how reranking would be utilized.
- Prompting and Generation: Explain the strategy for assembling context into prompts and how the final answer is generated by the Language Model.
- Safety, Guardrails, and Fallback: Discuss mechanisms for ensuring safety, implementing guardrails, and defining fallback behaviors when retrieval confidence is low.
- Comprehensive Evaluation Plan: Propose a detailed plan for evaluating the quality of each critical stage:
- Ingestion and chunking quality.
- Retrieval quality.
- Reranking quality (if applicable).
- Generation quality and grounding.
- End-to-end user success.
- Online Monitoring and Continuous Improvement: Describe how the system will be monitored in production and how a continuous improvement loop will be established.