Class JaccardSimilarity

java.lang.Object

cloud.opencode.base.string.similarity.JaccardSimilarity

public final class JaccardSimilarity
extends Object

Jaccard Similarity - Calculates Jaccard similarity coefficient between strings. Jaccard相似度 - 计算字符串之间的Jaccard相似系数。

Features | 主要功能:

• N-gram based Jaccard coefficient - 基于N-gram的Jaccard系数
• Configurable N-gram size (default 2) - 可配置N-gram大小（默认2）

Usage Examples | 使用示例:

double sim = JaccardSimilarity.calculate("hello", "hallo"); // ~0.5
double sim3 = JaccardSimilarity.calculate("abc", "abd", 3);

Security | 安全性:

• Thread-safe: Yes (stateless utility) - 线程安全: 是（无状态工具类）
• Null-safe: Yes (returns 0.0 for null) - 空值安全: 是（null返回0.0）

Since:

JDK 25, opencode-base-string V1.0.0

Author:

Leon Soo www.LeonSoo.com

See Also:

• OpenCode.cloud

Method Summary

Modifier and Type	Method	Description
static double	calculate(String s1, String s2)
static double	calculate(String s1, String s2, int nGram)

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

calculate

public static double calculate(String s1,
 String s2)

calculate

public static double calculate(String s1,
 String s2,
 int nGram)