Human-in-the-Loop (HITL)

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Human-in-the-loop (HITL) refers to systems where people stay involved at important moments instead of letting automation run on its own. A person might help shape the system during training, or step in to review outputs before they lead to real-world actions. This approach is used when decisions carry real consequences and human judgment is needed to catch mistakes or edge cases.

Good HITL design makes the human role clear. The system should know when to pause for review, and the reviewer should have enough context to make a confident call. Over time, the cases that trigger human intervention help teams improve the model and reduce repeat mistakes.

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