Esta é uma maneira de gerar uma pontuação de similaridade de String usando Java:
/* Generates number between 0.00 and 1.00 */
public double stringSimilarityScore(List<char[]> bigram1, List<char[]> bigram2) {
List<char[]> copy = new ArrayList<char[]>(bigram2);
int matches = 0;
for (int i = bigram1.size(); --i >= 0;) {
char[] bigram = bigram1.get(i);
for (int j = copy.size(); --j >= 0;) {
char[] toMatch = copy.get(j);
if (bigram[0] == toMatch[0] && bigram[1] == toMatch[1]) {
copy.remove(j);
matches += 2;
break;
}
}
}
return (double) matches / (bigram1.size() + bigram2.size());
}
E o método de apoio:
public List<char[]> bigram(String input) {
ArrayList<char[]> bigram = new ArrayList<char[]>();
for (int i = 0; i < input.length() - 1; i++) {
char[] chars = new char[2];
chars[0] = input.charAt(i);
chars[1] = input.charAt(i+1);
bigram.add(chars);
}
return bigram;
}