export type Neighbor = {
    id: number;
    score: number;
};
export type RecallResult = {
    recall: number;
    hits: number;
    total: number;
};
export declare function bruteForceKNN(query: Float32Array | number[], vectors: Array<{
    id: number;
    vector: Float32Array | number[];
}>, similarity: (a: Float32Array | number[], b: Float32Array | number[]) => number, k: number): Neighbor[];
export declare function recallAtK(approx: Neighbor[], exact: Neighbor[], k: number): RecallResult;
export declare function average(values: number[]): number;
export declare function percentile(values: number[], p: number): number;
export declare function summarizeLatencies(latenciesMs: number[]): {
    count: number;
    avg: number;
    p50: number;
    p90: number;
    p95: number;
    p99: number;
};
export declare function meanRecall(results: RecallResult[]): number;