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Software Engineering

Measuring Retrieval Quality: What 80 Questions Can Tell You

Oct 24, 2026

Before you trust that a change made AI search better, check the score is bigger than the noise. On 80 test questions, the noise was about 9 points either way.

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Software Engineering

Chunking Strategies for RAG, Measured

Oct 18, 2026

AI answers from your documents only work if search hands the model the right passage. How you cut the documents decides that: from 74% to 95% found.

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Software Engineering

A* Search: Dijkstra With a Sense of Direction

Oct 9, 2026

Finding the shortest route in maps and games: Dijkstra searches in every direction, A* aims at the goal. Same route, a tenth of the squares checked.

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Software Engineering

Backpressure: Bounding Queues Before They Bound You

Sep 3, 2026

When a server gets more work than it can handle, an unlimited waiting line turns a 30% overload into six-minute waits. A capped line keeps it to 168ms.

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Software Engineering

Consistent Hashing: Adding Nodes Without Losing the Cache

Aug 27, 2026

Add one server to a cache cluster and the usual approach moves 89% of the cached data. Consistent hashing moves 12%. How it works, built and measured.

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