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My ensemble scored 0.129 on the leaderboard. Here is what explained the gap

My ensemble scored 0.129 on the leaderboard, below the field median. I published it anyway, then tested six explanations for the gap. Before submitting I wrote down a forecast: 0.143. The graded scores were 0.128 (single model) and 0.129 (ensemble). Setup 804.5M raw market rows reduced to 292 BigQu…

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  1. 2026-10-05 20:03 · DEV Community — Machine Learning
    My ensemble scored 0.129 on the leaderboard. Here is what explained the gap

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