Add frozen HY-WorldPlay R50 evaluation results

Promote the common-resolution frozen R50 SC comparison, add HY-WorldPlay R50 SC/GT and Endpoint FID/KID reports, and update the reviewer-response artifact.

README.md

@@ -32,16 +32,16 @@ Reference videos and trajectory metadata are hosted separately in [VideoWorldmod
 
 ## Main results
 
-### Common camera-trajectory SC (frozen R20)
+### Common camera-trajectory SC (frozen R50)
 
-minWM and HY-WorldPlay receive the same frozen graph IDs and camera trajectories through their official pose-control pathways. Each model completed 80/80 rollouts with zero evaluation failures.
+minWM and HY-WorldPlay receive the same frozen graph IDs and camera trajectories through their official pose-control pathways. Each model completed 200/200 rollouts with zero evaluation failures, using the same 512x288 evaluation preprocessing.
 
 | Model | Inverse LPIPS / PSNR | Loop LPIPS / PSNR | Equivalence LPIPS / PSNR |
 | --- | ---: | ---: | ---: |
-| HY-WorldPlay 1.5 AR Distill | **0.4038 / 16.12** | **0.4562 / 15.48** | **0.3542 / 17.37** |
-| minWM | 0.7229 / 10.46 | 0.7442 / 11.08 | 0.4227 / 14.05 |
+| HY-WorldPlay 1.5 AR Distill | **0.4597 / 15.07** | **0.4941 / 15.50** | **0.3723 / 16.94** |
+| minWM | 0.7118 / 10.46 | 0.7442 / 10.85 | 0.4437 / 14.05 |
 
-R20 contains 20 graphs per relation: 60 graph units and 80 videos because every Equivalence graph has A/B branches. The code archive includes graph-bootstrap intervals and the corresponding GT-anchor summaries.
+R50 contains 50 graphs per relation: 150 graph units and 200 videos because every Equivalence graph has A/B branches. The code archive includes graph-bootstrap intervals, the corresponding GT-anchor summaries, and frozen R50 Endpoint FID/KID reports. Endpoint KID uses an unbiased finite-sample estimator, so valid negative estimates are retained in the detailed artifact rather than interpreted as distances below zero.
 
 ### External-model Inverse SC versus revisit horizon
 

Reasoning-Structured-Videos-Rebuttal-main.zip

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