About Sparse Vector

In high-dimensional space, most values are zero. The signal lives in the non-zero dimensions.

Sparse Vector is a publication about AI engineering — the parts that actually matter in production. RAG pipelines, MCP framework, LLM evaluation, AI security. Written by an engineer who builds these systems.

No tutorials. No hype. Just the signal.


By Rishabh Gupta — software engineer with 10+ years building systems across startups and large companies.

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In a high dimensional space, most values are zero. I write about the ones that aren’t.

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