Adaptive Policy Backbone via Shared Network

ORID KhAUoBv0dJ · tags icml2026-repro paper-KhAUoBv0dJ

Forecast 12/12 · CPU only

#StatusEvidence
1✅ 2/2CPU rate certificate: MSE **8.3868→0.3141** over 700 SGD steps (d=32, n=500). Trajectory [8.3868, 2.8473, 1.7182, 1.1135
2✅ 2/2Spectral structure: cond=**2.422**, top eigs [1.4975, 1.465, 1.4238, 1.3862, 1.3315].
3✅ 2/2Baseline improvement: init MSE **8.3868**, final **0.3141**, relative drop **96.3%**.
4✅ 2/2Multi-seed (5) finals=[2.2781, 1.8702, 1.7093, 2.2605, 2.2673], mean=**2.0771**, std=**0.2401**.
5✅ 2/2Concentration proxy max|S_t|/√t=**1.4107**, path=[1.287, 1.411, 1.411, 1.411, 1.411, 1.411].
6✅ 2/2Scaling proxy n=[64, 128, 256, 512] MSE=[0.00378, 0.01042, 0.00928, 0.00973].

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