RFC: integrate PiPNN as an alternative graph-index build algorithm#1049

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microsoft:mainfrom

SeliMeli:rfc-pipnn-integration

Commits on May 14, 2026

docs(rfc): address reviewer comments from PR #1049

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docs(rfc): add fixed-resource trade-off validation experiment (M6)

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docs(rfc): address wuw92's cycle + determinism comments

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docs(rfc): narrow Stage 1 scope to disk-index full-rebuild only

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docs(rfc): clarify PiPNN covers both initial builds and rebuilds

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docs(rfc): tighten prose, lift key points into tables

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docs(rfc): remove hybrid update model validation from Stage 1

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docs(rfc): renumber milestones contiguously, drop edit-history phrasing

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docs(rfc): drop obvious determinism note from checkpoint defer entry

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docs(rfc): strip obvious filler and defensive prose

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Commits on May 18, 2026