News Monitoring Retrieval — Observability Before Index Cost Becomes Guesswork
Dev Communityvia NewsData.io
TL;DR For an e-commerce news monitoring service, build retrieval observability around the life of a document: record what entered the pipeline, how it was chunked and indexed, what each query retrieved, and whether the evidence supported the generated answer. Track index growth and retention beside relevance and latency. Otherwise, a cheaper-looking index can quietly become an expensive archive, while a fast query can still return stale or duplicated news. The bill starts with retained chunks, not query count alone. Let source documents arrive at rate D, let chunking produce an average of K ch
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