/**
 * Vector Quantization Module
 *
 * Scalar Quantization으로 임베딩 저장 공간 절감.
 * - Float32: 50% 절감 (float64 → float32)
 * - Int8: 87.5% 절감 (float64 → int8)
 */
export type QuantizationLevel = 'none' | 'float32' | 'int8';
export interface QuantizationStats {
    min: number;
    max: number;
    dimensions: number;
}
/**
 * Float32 양자화 (float64 → float32, 50% 저장 공간 절감)
 */
export declare function quantizeToFloat32(embedding: number[]): Buffer;
/**
 * Float32 역양자화 (buffer → number[])
 */
export declare function dequantizeFromFloat32(buffer: Buffer): number[];
/**
 * Int8 양자화 (float64 → int8, 87.5% 저장 공간 절감)
 * Min-Max Scaling: value → round((value - min) / (max - min) * 255) - 128
 */
export declare function quantizeToInt8(embedding: number[], stats?: QuantizationStats): {
    buffer: Buffer;
    stats: QuantizationStats;
};
/**
 * Int8 역양자화 (buffer + stats → number[])
 */
export declare function dequantizeFromInt8(buffer: Buffer, stats: QuantizationStats): number[];
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