Advanced Reinforcement Learning Interview Questions #4 - The LLM-as-a-Judge Trap

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You’re in a Machine Learning interview at DeepSeek AI and the lead researcher asks: “We want to train a reasoning model using 𝐃𝐢𝐫𝐞𝐜𝐭 𝐏𝐫𝐞𝐟𝐞𝐫&#1…

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