/**
 * Confidence Scoring Algorithm
 *
 * Confidence = Frequency Score (70%) + Recency Score (30%)
 */
import type { MetaPattern } from '../core/schema.js';
/**
 * Calculate confidence score for a pattern
 *
 * Confidence combines:
 * - Frequency: How many times the pattern appears (saturates at 10)
 * - Recency: How recently it was last seen (7 days = max, 30 days = reduced, 90+ = low)
 *
 * @param pattern - Pattern to score
 * @returns Confidence score [0, 1]
 */
export declare function calculateConfidence(pattern: MetaPattern): number;
/**
 * Recalculate confidence for all patterns
 *
 * @param patterns - Patterns to update
 * @returns Updated patterns
 */
export declare function recalculateConfidence(patterns: MetaPattern[]): MetaPattern[];
/**
 * Filter patterns by minimum confidence threshold
 *
 * @param patterns - Patterns to filter
 * @param minConfidence - Minimum confidence (default 0.5)
 * @returns Filtered patterns
 */
export declare function filterByConfidence(patterns: MetaPattern[], minConfidence?: number): MetaPattern[];
/**
 * Get high-confidence patterns (>0.7)
 *
 * @param patterns - Patterns to filter
 * @returns High-confidence patterns
 */
export declare function getHighConfidencePatterns(patterns: MetaPattern[]): MetaPattern[];
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