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Correct signature size calculation #14

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6 changes: 3 additions & 3 deletions src/main/java/info/debatty/java/lsh/LSHMinHash.java
Original file line number Diff line number Diff line change
Expand Up @@ -46,7 +46,7 @@ public class LSHMinHash extends LSH {
*/
public LSHMinHash(final int s, final int b, final int n) {
super(s, b);
int signature_size = computeSignatureSize(s, n);
int signature_size = computeSignatureSize(s, b);
this.mh = new MinHash(signature_size, n);
}

Expand All @@ -66,7 +66,7 @@ public LSHMinHash(final int s, final int b, final int n) {
*/
public LSHMinHash(final int s, final int b, final int n, final long seed) {
super(s, b);
int signature_size = computeSignatureSize(s, n);
int signature_size = computeSignatureSize(s, b);
this.mh = new MinHash(signature_size, n, seed);
}

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The parameter should be changed to b as well.

Expand All @@ -92,7 +92,7 @@ public LSHMinHash(final int s, final int b, final int n, final long seed) {
private int computeSignatureSize(final int s, final int n) {

int r = (int) Math.ceil(Math.log(1.0 / s) / Math.log(THRESHOLD)) + 1;
return r * s;
return r * b;
}

/**
Expand Down