# `IndicesSettingsSimilarityBm25` [interface-IndicesSettingsSimilarityBm25]

| Name | Type | Description |
| - | - | - |
| `b` | [double](./double.md) |   |
| `discount_overlaps` | boolean |   |
| `k1` | [double](./double.md) |   |
| `type` | 'BM25' |   |