/**
 * Clustering Algorithm - Agglomerative clustering with cosine similarity
 *
 * Groups similar patterns together using hierarchical clustering.
 * Threshold: 0.75 (strict similarity requirement)
 */
import type { MetaPattern, Cluster } from '../core/schema.js';
/**
 * Cluster patterns using agglomerative clustering
 *
 * @param patterns - Patterns to cluster
 * @param threshold - Similarity threshold (default 0.75)
 * @returns Clusters
 */
export declare function clusterPatterns(patterns: MetaPattern[], threshold?: number): Cluster[];
/**
 * Assign cluster IDs to patterns
 *
 * @param patterns - Patterns to update
 * @param clusters - Clusters
 * @returns Updated patterns with cluster IDs
 */
export declare function assignClusterIds(patterns: MetaPattern[], clusters: Cluster[]): MetaPattern[];
/**
 * Find patterns in same cluster
 *
 * @param patternId - Pattern ID
 * @param clusters - Clusters
 * @returns Related pattern IDs
 */
export declare function findRelatedPatterns(patternId: string, clusters: Cluster[]): string[];
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