Add entrypoint for PFI #4232
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Add entrypoint for PFI #4232
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eerhardt
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Sep 20, 2019
eerhardt
reviewed
Sep 20, 2019
eerhardt
reviewed
Sep 20, 2019
eerhardt
reviewed
Sep 20, 2019
eerhardt
reviewed
Sep 20, 2019
eerhardt
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Sep 20, 2019
yaeldekel
reviewed
Sep 25, 2019
yaeldekel
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Sep 25, 2019
yaeldekel
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Sep 25, 2019
ganik
reviewed
Sep 27, 2019
| Contracts.Assert(predictor != null, "No predictor found in model"); | ||
| var transformedData = input.PredictorModel.TransformModel.Apply(env, input.Data); | ||
| IDataView result = PermutationFeatureImportanceUtils.GetMetrics(env, predictor, roleMappedData.Schema, transformedData, input); | ||
| return new PermutationFeatureImportanceOutput { Metrics = result }; |
eerhardt
reviewed
Sep 27, 2019
| var loadedData = mlContext.Data.LoadFromBinary(outputDataPath); | ||
| Assert.NotNull(loadedData.Schema.GetColumnOrNull("FeatureName")); | ||
| Assert.NotNull(loadedData.Schema.GetColumnOrNull("AreaUnderRocCurve")); | ||
| Assert.NotNull(loadedData.Schema.GetColumnOrNull("Accuracy")); |
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Do we want to verify that the numbers that come back here are correct?
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We would verify this by loading the same predictor model and data that goes into the PFI node, and applying the same steps to them that the PFI node does, so I don't see the point of doing this.
yaeldekel
reviewed
Sep 30, 2019
| PermutationFeatureImportanceArguments input) | ||
| { | ||
| var roles = roleMappedData.Schema.GetColumnRoleNames(); | ||
| var featureColumnName = roles.Where(x => x.Key.Value == RoleMappedSchema.ColumnRole.Feature.Value).First().Value; |
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featureColumnName [](start = 16, length = 17)
All these special roles - features, label, group etc. have properties in RoleMappedSchema, but you need to check first that they are not null. (here and in the other Get***Metrics methods as well).
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Fixes #4231
Entrypoint is needed to add PFI to NimbusML
microsoft/NimbusML#92