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Contextual Retrieval — Topic Summaries

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Build an AI Document (PDF, DOC, XML) Processing Pipeline for RAG | Docling, OCR, Chunking, Images

Venelin Valkov · 3 min read

Turning messy PDFs into reliable knowledge for RAG hinges on more than OCR. The core takeaway is a three-stage, fully local pipeline that converts a...

Docling PipelineOCR to MarkdownTable Handling

Why Your RAG Gives Wrong Answers (And 4 Chunking Strategies to Fix It) | LangChain Text Splitters

Venelin Valkov · 3 min read

RAG systems often fail for a surprisingly mundane reason: chunking breaks the information the model needs, even when embeddings, vector search, and...

RAG ChunkingLangChain Text SplittersSemantic Chunking

Build Better RAGs with Contextual Retrieval

Venelin Valkov · 3 min read

Contextual retrieval boosts retrieval-augmented generation (RAG) accuracy by enriching every text chunk with extra, chunk-specific context derived...

Contextual RetrievalRAG AccuracyVector Databases