public boolean isDuplicate(int[] minhashes) {
        for (int band = 0; band < nBands; band++) {
            int[] hashes = computeHash(minhashes, band, nRows);
            if (bandsStorage.contains(band, hashes)) {
                return true;
            }
        }
        return false;
    }
Finds the number of bands that need to be used for a given similarity threshold.

@param nHashes
@param jaccardThreshold
@return
ache/src/main/java/achecrawler/minhash/LSH.java