Document similarity is a tricky thing to get into the main API though, which is organised around the idea of sending a Doc through a sequence of steps, each of which adds or updates annotations. The signature for document similarity is fundamentally different. In the end we decided to not try to shoe-horn it in. Not everything needs to be one function call. So document relation predictions (including document similarity) wouldn't be a standard pipeline component.
Document similarity is a tricky thing to get into the main API though, which is organised around the idea of sending a Doc through a sequence of steps, each of which adds or updates annotations. The signature for document similarity is fundamentally different. In the end we decided to not try to shoe-horn it in. Not everything needs to be one function call. So document relation predictions (including document similarity) wouldn't be a standard pipeline component.