/**
 * Relevance Tuning System
 *
 * Enhances semantic search quality with multi-factor scoring:
 * - Semantic similarity (embedding distance)
 * - Lexical matching (keyword overlap)
 * - Recency boost (newer files score higher)
 * - File type preferences
 * - Path relevance (project structure awareness)
 */
export interface RelevanceFactors {
    semanticSimilarity: number;
    lexicalMatch: number;
    recencyScore: number;
    fileTypeScore: number;
    pathRelevance: number;
}
export interface RelevanceWeights {
    semantic: number;
    lexical: number;
    recency: number;
    fileType: number;
    path: number;
}
export interface TuningOptions {
    weights?: Partial<RelevanceWeights>;
    recencyDecayDays?: number;
    preferredExtensions?: string[];
    preferredPaths?: string[];
    minSemanticScore?: number;
}
export declare class RelevanceTuner {
    private weights;
    private options;
    constructor(options?: TuningOptions);
    /**
     * Calculate combined relevance score
     */
    calculateRelevance(factors: RelevanceFactors): number;
    /**
     * Calculate lexical match score (keyword overlap)
     */
    calculateLexicalMatch(query: string, content: string): number;
    /**
     * Calculate recency score with exponential decay
     */
    calculateRecencyScore(fileDate: Date): number;
    /**
     * Calculate file type score based on preferences
     */
    calculateFileTypeScore(filePath: string): number;
    /**
     * Calculate path relevance score
     */
    calculatePathRelevance(filePath: string): number;
    /**
     * Tokenize text into words
     */
    private tokenize;
    /**
     * Get file extension
     */
    private getExtension;
    /**
     * Update weights dynamically
     */
    updateWeights(newWeights: Partial<RelevanceWeights>): void;
    /**
     * Get current weights
     */
    getWeights(): RelevanceWeights;
    /**
     * Get current options
     */
    getOptions(): TuningOptions;
}
/**
 * Create tuner with sensible defaults
 */
export declare function createRelevanceTuner(options?: TuningOptions): RelevanceTuner;
//# sourceMappingURL=relevance-tuning.d.ts.map