Why Finer Chunking Takes the Answer Further Away
Chunk size and the splitting criterion alone determine the quality of the embedding vectors. Cut wrong and similarity search returns only half-finished fragments with broken context, shattering the correct answer — but splitting larger doesn't fix it either. This article examines the mechanics behind common splitting mistakes and lays out practical evaluation metrics that look at search recall and response completeness together. It's structured so candidate chunk validation, context retrieval strategies, and per-criterion experiment methods can be applied directly to your pipeline.
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