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Postgres RAG Chunking Explained: 3 Boundaries for Retrieval Quality

The page says chunking has degraded retrieval quality in the internal knowledge-base bot. What that actually means is explained by the trace: on call sees a plausible response, a successful vector query, and citations that point to the right handbook but the wrong passage. Nothing is down. The retrieval unit is wrong. TL;DR: chunking decides what a match can possibly be about. A chunk that mixes…

dev.to ·4h ago

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(B5) is empty: 420 solver-checked classes, and A(7) <= 8 now comes down to (B6)

This is from MV2's open notebook on Kakeya-type problems ( https://github.com/munimtechnologies/kakeya-small-fields ). It continues the earlier posts on finite 2-groups whose involutions are all…

A(6) equals 6, A(7) equals 9, and A(8) equals 11
(B5) confirmed empty using SAT solvers and computer-assisted methods
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4h ago ·dev.to

I Turned a Product Name into an Offline Wake Word — What I Had to Test

Most smart products already have a name. The hard part is making the device hear that name reliably without sending every conversation to the cloud.

Product name and wake word are distinct, with brand name for people and wake word for detectors
Keyword spotting (KWS) suitable for recognizing one wake phrase or few commands
Testing involves multiple speakers, speeds, distances, background noise, and final checklist

4h ago ·dev.to

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