llmverify/dist/utils/similarity.d.ts

AI Output Verification Toolkit — Local-first LLM safety, hallucination detection, PII redaction, prompt injection defense, and runtime monitoring. Zero telemetry. OWASP LLM Top 10 aligned.

/**
 * Text Similarity Utilities
 *
 * Simple similarity measures for consistency checking.
 *
 * @module utils/similarity
 * @author Haiec
 * @license MIT
 */
/**
 * Calculate Jaccard similarity between two texts
 */
export declare function jaccardSimilarity(text1: string, text2: string): number;
/**
 * Calculate cosine similarity using word frequency vectors
 */
export declare function cosineSimilarity(text1: string, text2: string): number;
/**
 * Calculate Levenshtein distance between two strings
 */
export declare function levenshteinDistance(str1: string, str2: string): number;
/**
 * Calculate normalized Levenshtein similarity (0-1)
 */
export declare function levenshteinSimilarity(str1: string, str2: string): number;
/**
 * Combined similarity score using multiple methods
 */
export declare function combinedSimilarity(text1: string, text2: string): number;