# `MlLearningToRankConfig` [interface-MlLearningToRankConfig]

| Name | Type | Description |
| - | - | - |
| `default_params` | Record<string, any> | &nbsp; |
| `feature_extractors` | Record<string, [MlFeatureExtractor](./MlFeatureExtractor.md)>[] | &nbsp; |
| `num_top_feature_importance_values` | [integer](./integer.md) | &nbsp; |