mathislucka 9c4e67d9b6
Enable cosine similarity metric in FAISSDocumentStore (#1352)
* feat: normalize embeddings for cosine sim

* WIP add test case for faiss cosine

* input to faiss normalize needs to be an array of vectors

* fix: test should compare correct result embedding to original embedding

* add sanity check for cosine sim

* fix typo

* normalize cosine score

* Update docstring

Co-authored-by: Malte Pietsch <malte.pietsch@deepset.ai>
2021-09-20 07:54:26 +02:00
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