 SirStone
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dbae449273
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feat(SNNBot): replace R-STDP with SuperSpike learning rule (#158)
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>
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2026-09-13 20:07:31 +02:00 |
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SirStone
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2bfa8eb6a5
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feat(SNNBot): add STDP learner and integration test (#153, #155)
- Implement reward-modulated STDP: spike timing, eligibility traces,
reward-gated weight updates (w += η * reward * trace), clamp [-2,2]
- Add integration smoke test vs SittingDuck (compile + battle completion)
- Add tests/config.nims and nimble test task
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2026-09-13 10:31:07 +02:00 |
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SirStone
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c038128c2f
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feat(SNNBot): upgrade bot API, fix debug overlay and aiming lines
- Upgrade to robocode_tankroyale_botapi v1.0.7 (SVG viewBox fix)
- Fix Y-axis mirror in aiming line toXY helper
- Resize debug panel to half arena width/height
- Replace neuron boxes with barcode-style spike lines
- Thickness-encoded weight connections (all 216 lines)
- Add aiming line legend (top-left, white text)
- Dynamic aiming line length (distance + 50px overshoot)
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2026-09-13 10:24:20 +02:00 |
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