Question: What are the normalized cosine distance and normalized angular distance?

[xumx]

What are the advantages and disadvantages of using the normalised distance function?

[masajiro]

The advantage is improving the search time by reducing the time of distance calculation. The disadvantage is that you cannot use the index as your original vector repository, because vectors that are extracted from the index are not original ones but normalized ones. There is no other differences from the denormalized distance.