import type { KnowledgeEntry } from '../types/index.js';
import type { Association } from '../association/association-types.js';
import type { GraphNode, GraphEdge, GraphSnapshot } from './graph-types.js';
export interface KnowledgeGraphOptions {
    semanticThreshold?: number;
}
export declare class KnowledgeGraph {
    private readonly nodes;
    private readonly edges;
    private readonly adjacency;
    private readonly semanticThreshold;
    constructor(options?: KnowledgeGraphOptions);
    addEntry(entry: KnowledgeEntry): GraphNode;
    removeEntry(entryId: string): boolean;
    addExplicitEdge(association: Association): GraphEdge;
    addCoOccurrenceEdge(entryId1: string, entryId2: string, strength: number): GraphEdge;
    addSemanticEdge(entryId1: string, entryId2: string, similarity: number): GraphEdge | null;
    removeEdge(sourceId: string, targetId: string, edgeSource?: string): boolean;
    getNode(entryId: string): GraphNode | undefined;
    getNeighbors(entryId: string): GraphNode[];
    getEdges(entryId: string): GraphEdge[];
    getDegree(entryId: string): number;
    snapshot(): GraphSnapshot;
    get nodeCount(): number;
    get edgeCount(): number;
    private addEdge;
    private edgeKey;
}
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