@Immutable public class SorensenDice extends Object implements NormalizedStringDistance, NormalizedStringSimilarity
Constructor and Description |
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SorensenDice()
Sorensen-Dice coefficient, aka Sørensen index, Dice's coefficient or
Czekanowski's binary (non-quantitative) index.
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SorensenDice(int k)
Sorensen-Dice coefficient, aka Sørensen index, Dice's coefficient or
Czekanowski's binary (non-quantitative) index.
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Modifier and Type | Method and Description |
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double |
distance(String s1,
String s2) |
int |
getK()
Return k, the length of k-shingles (aka n-grams).
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double |
similarity(String s1,
String s2)
Similarity is computed as 2 * |A inter B| / (|A| + |B|).
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public SorensenDice(int k)
k
- public SorensenDice()
public final double similarity(String s1, String s2)
similarity
in interface StringSimilarity
s1
- s2
- public double distance(String s1, String s2)
distance
in interface StringDistance
public int getK()
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