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# MLRecommender.ModelAlgorithmType.itemSimilarity(_:)

An algorithm that compares the similarity from item to item.

```
case itemSimilarity(MLRecommender.SimilarityType)
```

## Discussion

The default value is [`MLRecommender.SimilarityType.jaccard`](/documentation/CreateML/MLRecommender/SimilarityType/jaccard).

---

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