export interface WordFrequency {
    word: string;
    count: number;
    percentage: number;
}
export interface StemFrequency {
    stem: string;
    exampleWord: string;
    count: number;
    percentage: number;
    words: string[];
}
/**
 * Text analysis utilities for analyzing AI-generated content
 * Provides word frequency and stem analysis with German language support
 */
export declare class TextAnalyzer {
    /**
     * German stop words to be filtered out during analysis
     */
    private static readonly GERMAN_STOP_WORDS;
    /**
     * English stop words for multilingual support
     */
    private static readonly ENGLISH_STOP_WORDS;
    /**
     * Filter and clean text for analysis
     * @param text Text to clean
     * @returns Array of filtered words
     */
    static prepareText(text: string): string[];
    /**
     * Simple German stemmer that removes common endings
     * @param word Word to stem
     * @returns Word stem
     */
    static germanStemmer(word: string): string;
    /**
     * Analyze word frequency in text
     * @param text Text to analyze
     * @param topN Number of most frequent words to return
     * @returns Array of word frequency objects sorted by frequency
     */
    static analyzeWordFrequency(text: string, topN?: number): WordFrequency[];
    /**
     * Analyze word repetitions based on word stems
     * @param text Text to analyze
     * @param topN Number of most frequent stems to return
     * @returns Array of stem frequency objects
     */
    static analyzeStemFrequency(text: string, topN?: number): StemFrequency[];
    /**
     * Generate markdown table for word frequency analysis
     * @param frequencies Word frequencies
     * @returns Markdown formatted table
     */
    static generateWordFrequencyTable(frequencies: WordFrequency[]): string;
    /**
     * Generate markdown table for stem frequency analysis
     * @param frequencies Stem frequencies
     * @returns Markdown formatted table
     */
    static generateStemFrequencyTable(frequencies: StemFrequency[]): string;
    /**
     * Create complete markdown sections for text analysis
     * @param text Text to analyze
     * @param topN Number of most frequent words to analyze
     * @returns Object with markdown sections for word frequency and stem analysis
     */
    static generateTextAnalysisMarkdown(text: string, topN?: number): {
        wordFrequencySection: string;
        stemFrequencySection: string;
    };
}
//# sourceMappingURL=text-analysis.utils.d.ts.map