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Mar 25, 2021 at 14:55 comment added dwkd Thank you Erwan! We're having great results with XGBoost so far.
Mar 22, 2021 at 19:16 comment added Erwan ... the right label (the most frequent) for a known instance. A simple decision tree would do that quite well for instance.
Mar 22, 2021 at 19:16 comment added Erwan @dwkd what you're describing in the comment is a two-stages method: stage 1 is deterministic and stage 2 is statistical. In the case of your problem you can indeed do something similar: 1) if the instance is known then predict the label from the training data (deterministic, as I said in the answer) 2) if the instance is unknown then predict from a model trained from the training set (in this case there might be errors, exactly like a doctor could make a mistake). Note that if the ML setting is chosen to be conservative, it can take care of both (1) and (2) because it would always predict ...
Mar 22, 2021 at 18:59 comment added dwkd I was expecting this answer but was hoping there's some sort of hybrid deterministic + statistcal algorithm, just as we humans use in the real world. For example, a doctor applies a pure deterministic approach when triaging a patient but quickly starts augmenting it with statistics when new facts that he hasn't encountered before emerge.
Mar 20, 2021 at 11:27 history edited Erwan CC BY-SA 4.0
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Mar 20, 2021 at 11:19 history answered Erwan CC BY-SA 4.0