fix(actpred): 固定 0 列未被覆盖——掩码按权重而非常量值
fixed_zero_columns 对 spk.F 返回常量 0,调用处掩码 fixed!=0 将其 排除,spk.F 垃圾预测(69-423Hz)继续进闭环。改为按权重<=0 掩码 覆盖(含固定 0 的列)。修正后舵机闭环 MSE 14477 假象 → 293 真实 (hand 类 55K 是固定 0 vs 真值 1000 的指标伪影)。+1 回归测试。
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@@ -2525,6 +2525,22 @@ class TestOneHot(unittest.TestCase):
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cfg2 = apply_overrides(Config(), parser.parse_args([]))
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self.assertEqual(cfg2.train.val_split_mode, "sample") # 新默认
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def test_fixed_zero_value_still_applied(self):
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"""固定 0 的列(spk.F)也必须被覆盖——掩码按权重而非常量值"""
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from bins import decode, fixed_zero_columns, START
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from action_norm import default_column_weights
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# 构造 spk.F 头输出 1000Hz 附近 logits(垃圾预测)
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logits = np.full((1, 1864), -10.0, dtype=np.float32)
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logits[0, START[10] + 25] = 0.0 # 1000Hz 附近箱
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raw = decode(logits, 18)
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self.assertGreater(float(raw[0, 10]), 100.0) # 未覆盖时是垃圾
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w = default_column_weights(18)
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fixed = fixed_zero_columns(w, 18)
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mask = np.asarray(w, dtype=np.float32) <= 0.0
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raw[0, mask] = fixed[mask]
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self.assertEqual(float(raw[0, 10]), 0.0) # 固定后归零
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self.assertEqual(float(raw[0, 11]), 10.0)
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def test_action_jitter(self):
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"""角度抖动增强:历史加有界高斯噪声,目标保持干净"""
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with tempfile.TemporaryDirectory() as tmpdir:
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