SirStone
dbae449273
Three-factor local learning: Δw = η × pre_trace × σ'(U) × error - Surrogate derivative σ'(U) = 1/(1+|β(U-ϑ)|)² gives directional gradient - Random feedback weights project output error to hidden layer - 10-tick inference window for rate-coded sin/cos output - Fixed stale learning target bug (EVALUATE used wrong gun direction) Hyperparams: ETA=0.05, THRESH=0.2, W_CLAMP=1.0, N_INFER=10, BETA=1.0 Removed: R-STDP eligibility traces, STDP timing window, exploration noise Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>