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diff --git a/RANK_RESULTS.md b/RANK_RESULTS.md index e1c4343..0e481b9 100644 --- a/RANK_RESULTS.md +++ b/RANK_RESULTS.md @@ -91,6 +91,18 @@ segmentation and nothing over using fewer segments. This confirms from a new angle what the earlier oracle-box comparison found: **segmentation is not the constraint on photographs.** +The correlation column in that table should be read against a noise floor. +Moving the segmentation eigendecomposition from CPU to GPU changes nothing in +the recipe, yet re-deriving segments through it takes the baseline correlation +from 0.6559 to 0.6767 — the eigenvectors differ in sign and, where eigenvalues +are near-degenerate, in rotation, so the clustering that follows lands +differently. **Segmentation reseeding is worth about 0.02 in correlation**, so +the 6-versus-16-segment and oracle-box differences in that table are inside +the noise and only the shared counts distinguish them. The session's headline +movements, 0.656 to 0.716 to 0.725, are three times the floor. The pipeline +itself is unchanged: run against the original CPU-derived segments it +reproduces 0.6559 exactly. + The text side does move it, and saturates: | Text vector dimension | text eff. rank | ρ | shared | |