Free ebookRAGData PreprocessingQuality Gates

Data preprocessing for RAG pipelines

The preprocessing layer that decides RAG quality before retrieval ever runs. Cleaning, normalization, dedup, quality gates. Grounded in 14-rag-failures and complex-RAG-guide.

What you get

  • Identify the preprocessing choices that drop precision by 10-20 points silently
  • Clean and normalize text without destroying retrievable structure
  • Dedup at ingest to avoid recall-killing near-duplicates
  • Anonymize sensitive entities to cut hallucinations from biased pretraining
  • Wire quality gates so bad data cannot reach the index

Inside

  • Why preprocessing decides RAG quality
  • Cleaning rules per document type
  • Normalization without structure loss
  • Dedup and near-duplicate detection
  • Entity anonymization for factual grounding
  • Ingest-time quality gates
  • Ship checklist
Checking access…