/**
 * Comparative Analysis
 *
 * Compares two AAC board sets to identify missing/extra words,
 * analyze vocabulary differences, and generate CARE component scores.
 */
import { MetricsResult, ComparisonResult } from './types';
import { type ReferenceDataProvider } from '../reference/index';
import { MetricsOptions } from './types';
export declare class ComparisonAnalyzer {
    private vocabAnalyzer;
    private sentenceAnalyzer;
    private referenceLoader;
    constructor(referenceLoader?: ReferenceDataProvider);
    private normalize;
    /**
     * Compare two board sets
     */
    compare(targetResult: MetricsResult, compareResult: MetricsResult, options?: {
        includeSentences?: boolean;
        locale?: string;
    } & Partial<MetricsOptions>): Promise<ComparisonResult>;
    /**
     * Calculate CARE component scores
     */
    private calculateCareComponents;
    /**
     * Analyze fringe vocabulary
     */
    private analyzeFringe;
    /**
     * Analyze common fringe vocabulary
     */
    private analyzeCommonFringe;
    /**
     * Calculate overall effort score for a metrics result
     */
    private calculateEffortScore;
}