cosineSimilarity

Cosine similarity between two vectors.

Pure arithmetic, no network call. Returns a value from -1 to 1, where 1 means the vectors point the same way.

Vectors of different lengths, or a zero vector, return 0 rather than throwing.

let score = cosineSimilarity(queryVector, documentVector)

Signature

func cosineSimilarity(
    _ a: [Double],
    _ b: [Double]
) -> Double

Defined in Sources/AI/Core/Embeddings.swift.

Parameter	Type	Default
`_`	`[Double]`	required
`_`	`[Double]`	required

A Double between -1 and 1.