import { ClassifierProps, ClassifierOptions, Dataset } from './types';
export declare class Classifier {
    private categories;
    options: ClassifierOptions;
    constructor(options?: ClassifierOptions);
    calculateAccuracy(trainData: Dataset, validationData: Dataset): string | number;
    learn(sentence: string, inputs: string | string[]): void;
    private normalizeData;
    private getUnknownScore;
    classify(sentence: string): string | Record<string, string | number>;
    private extractBestMatch;
    private getTokens;
    resetKnowledge(): void;
    private ensureAttributesForCreation;
    getModel(): ClassifierProps;
    toYAML(filepath: string): Promise<void>;
    toJSON(filepath: string): Promise<void>;
    fromYAML(filePath: string, options?: ClassifierOptions): Promise<void>;
    fromJSON(filePath: string, options?: ClassifierOptions): Promise<void>;
    private freeMemory;
    private analize;
}