import { TransformerBase } from '../base';
import { Params } from '../base/estimator';
import { NumericMatrix } from '../data';
export interface LatentDirichletAllocationProps {
    nComponents?: number;
    docTopicPrior?: number | null;
    topicWordPrior?: number | null;
    maxIter?: number;
    maxDocUpdateIter?: number;
    meanChangeTol?: number;
    randomState?: number;
}
export declare class LatentDirichletAllocation extends TransformerBase<any, any> {
    private nComponents;
    private docTopicPrior;
    private topicWordPrior;
    private maxIter;
    private maxDocUpdateIter;
    private meanChangeTol;
    private randomState?;
    private componentsState;
    private nIterState;
    private nFeaturesState;
    constructor(props?: LatentDirichletAllocationProps);
    getParams(): Params;
    private validate;
    private eStep;
    fit(X: NumericMatrix): void;
    transform(X: NumericMatrix): number[][];
    fitTransform(X: NumericMatrix): number[][];
    get components(): number[][];
    get nIter(): number;
}