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brainy/docs/architecture
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David Snelling b7c6752388 feat: add stddev/variance aggregation ops with Welford's online algorithm 
- New aggregation ops: stddev and variance (incremental, O(1) per update)
- Welford's online algorithm for numerically stable running variance
- MetricState extended with m2 field for variance tracking
- AggregationProvider interface: defineAggregate, removeAggregate, restoreState, serializeState
- Export AggregateGroupState and MetricState types
- Plugin docs: aggregation provider, analytics providers (HyperLogLog, t-digest, etc.)
- Aggregation architecture and usage guide docs

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-17 17:04:11 -08:00
..
aggregation.md feat: add stddev/variance aggregation ops with Welford's online algorithm 2026-02-17 17:04:11 -08:00
augmentation-system-audit.md fix: update all imports and references from BrainyData to Brainy 2025-09-30 17:09:15 -07:00
augmentations-actual.md feat: migrate embeddings to Candle WASM + remove semantic type inference 2026-01-06 12:52:34 -08:00
augmentations.md fix: update all imports and references from BrainyData to Brainy 2025-09-30 17:09:15 -07:00
CLUSTERING_ALGORITHMS_ANALYSIS.md docs: add deprecation warnings for addNoun and addVerb methods 2025-09-17 10:48:41 -07:00
data-storage-architecture.md fix: exclude __words__ keyword index from corruption detection and getStats() 2026-01-27 15:38:21 -08:00
distributed-storage.md docs: add comprehensive scaling and storage architecture documentation 2025-09-08 14:49:25 -07:00
finite-type-system.md feat: migrate embeddings to Candle WASM + remove semantic type inference 2026-01-06 12:52:34 -08:00
index-architecture.md feat: add aggregation engine with incremental SUM/COUNT/AVG/MIN/MAX, GROUP BY, and time windows 2026-02-16 16:57:53 -08:00
initialization-and-rebuild.md fix: exclude __words__ keyword index from corruption detection and getStats() 2026-01-27 15:38:21 -08:00
noun-verb-taxonomy.md fix: update all Stage 2 references to Stage 3 CANONICAL type counts 2025-11-06 09:40:33 -08:00
overview.md docs: add comprehensive index architecture documentation 2025-10-13 13:42:04 -07:00
PERFORMANCE_ANALYSIS.md feat: Brainy 3.0 - Production-ready Triple Intelligence database 2025-09-11 16:23:32 -07:00
storage-architecture.md fix: exclude __words__ keyword index from corruption detection and getStats() 2026-01-27 15:38:21 -08:00
triple-intelligence.md 🧠 Brainy 2.0.0 - Zero-Configuration AI Database with Triple Intelligence™ 2025-08-26 12:32:21 -07:00
zero-config.md fix: update all imports and references from BrainyData to Brainy 2025-09-30 17:09:15 -07:00