What is the best settings for index (recall rate) for face recognition system?

[martinenkoEduard]

What is the best settings (recall rate) for face recognition system?
What could be a starting point?

Like i care only about 10 most likely objects.

[yhmo]

I think it is case-by-case, depending on your business requirement. In most of time it is a trade-off of performance and accuracy.

[martinenkoEduard]

Is there an index with the highest recall rate for the most similar vectors.
Can you give some examples.

[yhmo]

FLAT index has the highest recall rate(100%), it is brute-force search, each vector is computed.

index_params = {
        "index_type": "FALT",
        "metric_type": metric_type,
        "params": {}
    }
    collection.create_index(field_name = "xxx", index_params = index_params)