LeaderFollower Filter

• A filter for extracting atomic keyword from queried sentence

Conception

This filter excludes the word token which is enclosing some other keyword. Therefore, a word list that has been applied this filter will consist of atomic keyword(Lowest Range). By this filter, the efficiency of search engine will be increased since the amount of words to search is small.

Usage

import java.util.HashMap;
import java.util.Map;

public class AppMain {
    public static void main(String[] args){
        String s = "";
        WordSet wordSet = new WordSet();
        wordSet.addWord(new Word("대한민국", "대한민국", 0));
        wordSet.addWord(new Word("서울", "서울", 0));
        wordSet.addWord(new Word("학동", "학동", 0));
        wordSet.addWord(new Word("과일", "과일", 0));
        wordSet.addWord(new Word("배", "배", 0));
        wordSet.addWord(new Word("사과", "사과", 0));

        Map<String,Integer> map = new HashMap<>();
        map.put("학동,배", 0);
        map.put("과일,사과", 0);
        map.put("과일,배", 0);
        map.put("대한민국,서울", 0);
        map.put("대한민국,학동", 0);
        map.put("서울,학동", 0);

        s = "";
        for(Word w : wordSet.getWords()) s += w.getNorWord() + " ";
        System.out.println("검색키워드 [" + s.trim() + "]");
        s = "";
        for(Word ws : LFFilter.execute(wordSet, map).getWords()) s += ws.getNorWord() + " ";
        System.out.println("추출키워드 [" + s.trim() + "]");
    }
}

Output

검색키워드 [대한민국 서울 학동 과일 배 사과]
추출키워드 [배 사과]

Process finished with exit code 0

This project is made for supplement of search engine developed by RICHWARE SYSTEMS(C)