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
reviewed
Sep 20, 2019
yaeldekel
reviewed
Sep 25, 2019
yaeldekel
reviewed
Sep 25, 2019
yaeldekel
reviewed
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).
ghost
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Fixes #4231
Entrypoint is needed to add PFI to NimbusML
microsoft/NimbusML#92