Smart string matching algorithm - string

Question

I'm looking for an algorithm that can be used to compare two sentences are provide a matching score. For example,
INPUT
Sentence Input 1: "A quick brown fox jumps over the lazy dog"
Sentence Input 2: "Alpha bravo dog quick beta gamma fox over the lazy dug"
OUTPUT
Output: "A quick brown fox jumps over the lazy dog"
Score: 5 out of 9 (words found in correct order)
Can someone please point me in the right direction?

Answer 1

Can you try this c++ based algorithm to solve the above problem?
int MatchingScore(string s1, string s2) {
int count = 0;
unordered_map<string, int> my_map;
stringstream ss1(s1);
stringstream ss2(s2);
vector<string> tokens1;
vector<string> tokens2;
string temp_str;
// tokenise strings s1, s2 based on space char
while(getline(ss1, temp_str, ' ')) {
tokens1.push_back(temp_str);
}
while(getline(ss2, temp_str, ' ')) {
tokens2.push_back(temp_str);
}
// push words of string1 to hash_map
for(auto s: tokens1) {
my_map[s]++;
}
// while iterating through string2 check if word already present in hash_map
for(auto s: tokens2) {
if(my_map.find(s) != my_map.end()) {
count++;
}
}
return count;
}

Answer 2

You can try this java code:
String sentence = "A quick brown fox jumps over the lazy dog";
String searchPhrase = "Alpha bravo dog quick beta gamma fox over the lazy dug";
String[] searchwords = searchPhrase.trim().split(" ");
int score = 0;
for (int i = 0; i<searchwords.length ;i++) {
if (sentence.toLowerCase().indexOf(searchwords[i].toLowerCase()) != -1) {
score +=1;
} else {
score +=0;
}
}
System.out.println("Score: " + score + " out of " + searchwords.length);

Answer 3

A working solution, Tested with variations. Need to be optimized with regex, etc
Output:
Score: 5 out of 9
A *quick* brown *fox* jumps *over* *the* *lazy* dog
Java code is written in Android Studio junit
String sentence = "A quick brown fox jumps over the lazy dog";
String searchPhrase = "Alpha bravo dog quick beta gamma fox over the lazy dug";
String[] searchWords = sentence.split(" ");
int score = 0;
String outputString = sentence;
for (String searchWord : searchWords) {
String spacedPhrase = " " + searchPhrase + " ";
String spacedWord = " " + searchWord.toLowerCase() + " ";
if (spacedPhrase.toLowerCase().contains(spacedWord)) {
score += 1;
searchPhrase = searchPhrase.substring(spacedPhrase.indexOf(spacedWord) + 1);
outputString = (" " + outputString + " ").replaceFirst(" "+ searchWord + " ",
" *" + searchWord + "* ");
}
}
System.out.println("Score: " + score + " out of " + sentence.split(" ").length);
System.out.println(outputString.trim());
assertEquals("A *quick* brown *fox* jumps *over* *the* *lazy* dog", outputString.trim());