ai-sdk-ollama/dist/utils/cosine-similarity.d.ts

Vercel AI SDK Provider for Ollama using official ollama-js library

/**
 * Calculate cosine similarity between two vectors.
 *
 * Cosine similarity measures the angle between two vectors in multi-dimensional space,
 * returning a value between -1 and 1 where:
 * - 1 means identical direction (most similar)
 * - 0 means orthogonal (unrelated)
 * - -1 means opposite direction (least similar)
 *
 * For normalized embedding vectors, this is equivalent to the dot product.
 *
 * @param a First vector
 * @param b Second vector
 * @returns Cosine similarity score between -1 and 1
 * @throws Error if vectors have different dimensions
 */
export declare function cosineSimilarity(a: number[], b: number[]): number;
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