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Free ebookText CleaningUnicodeTokenization

Text data cleaning for RAG pipelines

Text cleaning patterns specific to RAG: Unicode, tokenization, encoding, language detection, PII redaction. Grounded in scalable-rag-pipeline.

What you get

  • Apply Unicode NFC normalization without losing meaningful characters
  • Split BM25 and vector text pipelines because they want different cleaning
  • Detect and route mixed-language documents at ingest
  • Redact PII at ingest, not at query time
  • Fix encoding artifacts before they poison embeddings

Inside

  • Why text cleaning is upstream of retrieval quality
  • Unicode, whitespace, and zero-width characters
  • Tokenization for BM25 vs vectors
  • Language detection and multilingual handling
  • Encoding artifact detection (Mojibake)
  • PII and sensitive-content redaction
  • Ship checklist
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Prefer a walkthrough? Watch the companion webinar.