Unverified50% confidenceFactExact time
When key decisions and returns are separated by hundreds of steps, the TD signal attenuates due to the variance accumulated over multiple steps and the discount factor, causing the value of the acquisition action to be severely underestimated.
1
Sources
50%
Confidence
Long-term
Relevance
10/30/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedUnder trajectory-level sparse rewards, the TD residual propagates backward along the entire trajectory, causing the credit of early actions to be diluted or even distorted by later outcomes.80% similarUnverifiedSparse rewards combined with long time spans cause gradient-based optimization signals to decay significantly during backpropagation.75% similarUnverifiedSignals for identifying overfitting include: the more strategy parameters the better; backtest results being extremely sensitive to small parameter changes; strategy performance dropping off a cliff in out-of-sample testing; and too few trades leading to insufficient statistical significance.74% similarUnverified负向提示词包含过多token时，每个token在交叉注意力计算中分到的权重被稀释，导致单个约束的实际抑制效力大幅下降71% similarVerifiedError cascading refers to small judgment deviations in early steps being progressively amplified as the reasoning chain extends, ultimately producing results far from what was intended.71% similar
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