/** Tuning constants used across multiple engine modules */
export declare const MAX_UNDO = 20;
export declare const MAX_TAGS = 20;
export declare const MIN_TAG_COUNT = 3;
export declare const BAYESIAN_PRIOR_WEIGHT = 0.5;
export declare const BAYESIAN_PRIOR_COUNT = 3;
export declare const MAX_DEPTH = 30;
export declare const CARD_WIDTH = 800;
export declare const CARD_HEIGHT = 560;
export declare const COMPAT_CARD_HEIGHT = 640;
export declare const MATCHER_GENRE_WEIGHT = 0.5;
export declare const MATCHER_TAG_WEIGHT = 0.3;
export declare const MATCHER_COMMUNITY_WEIGHT = 0.2;
export declare const MOOD_BOOST = 1.3;
export declare const MOOD_PENALTY = 0.6;
export declare const MIN_COMMUNITY_SCORE = 50;
export declare const POPULARITY_PENALTY_MAX = 0.15;
export declare const POPULARITY_CEILING = 100000;
export declare const SIMILAR_GENRE_WEIGHT = 0.4;
export declare const SIMILAR_TAG_WEIGHT = 0.3;
export declare const SIMILAR_REC_WEIGHT = 0.3;