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29 lines
954 B
C#
29 lines
954 B
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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namespace FuzzyString
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{
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public static partial class ComparisonMetrics
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{
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public static double JaroDistance(this string source, string target)
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{
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int m = source.Intersect(target).Count();
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if (m == 0) { return 0; }
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else
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{
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string sourceTargetIntersetAsString = "";
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string targetSourceIntersetAsString = "";
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IEnumerable<char> sourceIntersectTarget = source.Intersect(target);
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IEnumerable<char> targetIntersectSource = target.Intersect(source);
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foreach (char character in sourceIntersectTarget) { sourceTargetIntersetAsString += character; }
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foreach (char character in targetIntersectSource) { targetSourceIntersetAsString += character; }
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double t = sourceTargetIntersetAsString.LevenshteinDistance(targetSourceIntersetAsString) / 2;
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return ((m / source.Length) + (m / target.Length) + ((m - t) / m)) / 3;
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}
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}
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}
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}
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