[7.x] [ML] adjusting feature importance mapping for multi-class support (#53821) #54013
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…astic#53821) Feature importance storage format is changing to encompass multi-class. Feature importance objects are now mapped as follows (logistic) Regression: ``` { "feature_name": "feature_0", "importance": -1.3 } ``` Multi-class [class names are `foo`, `bar`, `baz`] ``` { “feature_name”: “feature_0”, “importance”: 2.0, // sum(abs()) of class importances “foo”: 1.0, “bar”: 0.5, “baz”: -0.5 }, ``` This change adjusts the mapping creation for analytics so that the field is mapped as a `nested` type. Native side change: elastic/ml-cpp#1071
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Pinging @elastic/ml-core (:ml) |
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Backports the following commits to 7.x: