/**
 * ENSEMBLE AGGREGATION ENGINE - Combine responses from multiple models
 * Implements all aggregation strategies: voting, confidence weighting, synthesis, etc.
 */
import { AggregationStrategy, AggregationStrategyConfig } from '../../types/policies';
import { VendorResponse } from '../../types/vendors';
import { AdapterResponse } from '../execution/execution-engine';
export interface AggregationContext {
    responses: AdapterResponse[];
    config?: AggregationStrategyConfig;
    strategy: AggregationStrategy;
    request_context?: Record<string, unknown>;
}
export interface AggregatedResponse {
    combined_response: VendorResponse;
    strategy_used: AggregationStrategy;
    confidence_score: number;
    metadata: {
        source_count: number;
        successful_sources: number;
        aggregation_details: Record<string, unknown>;
    };
}
export declare class AggregationEngine {
    /**
     * Main aggregation method
     */
    aggregate(context: AggregationContext): Promise<AggregatedResponse>;
    /**
     * FIRST: Return the first successful response
     */
    private aggregateFirst;
    /**
     * VOTING: Aggregate based on voting method
     */
    private aggregateVoting;
    /**
     * CONFIDENCE_WEIGHTED: Weight responses by confidence scores
     */
    private aggregateConfidenceWeighted;
    /**
     * RANKER: Rank responses and select top-k
     */
    private aggregateRanker;
    /**
     * SYNTHESIZER: Use LLM to synthesize responses
     */
    private aggregateSynthesizer;
    /**
     * EARLIEST: Return the response that completed first
     */
    private aggregateEarliest;
    /**
     * DIVERSITY: Select diverse responses
     */
    private aggregateDiversity;
    /**
     * CONSENSUS: Require consensus threshold
     */
    private aggregateConsensus;
    private extractText;
    private normalizeText;
    private tieBreaker;
    private createTextResponse;
    private extractConfidence;
    private calculateRankingScore;
    private calculateDiversity;
    private cosineSimilarity;
    private jaccardSimilarity;
    private levenshteinDistance;
}
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