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My AI Model Was 89% Accurate. It Missed 99% of the State I Cared About

I trained a small CoreML classifier to estimate whether a player was bored, in flow, frustrated, or about to quit. The training pipeline looked respectable: headless game simulator bots with randomised aim, dodging, recklessness and patience deterministic seeds player-level train/test split class-w…

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  1. 2026-10-20 08:07 · DEV Community — Machine Learning
    My AI Model Was 89% Accurate. It Missed 99% of the State I Cared About

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