Three-phase cluster: on-spawning + downstream trace#159
Merged
NewGraphEnvironment merged 1 commit intomainfrom Apr 15, 2026
Merged
Three-phase cluster: on-spawning + downstream trace#159NewGraphEnvironment merged 1 commit intomainfrom
NewGraphEnvironment merged 1 commit intomainfrom
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Phase 1: segments with both label_cluster and label_connect TRUE excluded from clustering — always valid (on-spawning rearing). Phase 3: FWA_Downstream on broken streams table (mainstem only) replaces fwa_downstreamtrace on raw FWA. Path gradient + distance constraints applied linearly. BULK CH rearing: +6.0% → +4.2%. BT rearing: +1.3% → +0.0%. ADMS no regression. Fixes #153 Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Summary
Replaces boolean-only upstream check that was too permissive (CH rearing +6%).
Results (link compare script)
All within 5%.
Fixes #153
Relates to NewGraphEnvironment/sred-2025-2026#24
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