java - 在java应用程序中将单词映射到其同义词

Question

我正在开发一个单词同义词应用程序，但遇到了挑战。挑战/问题是如何在我的应用程序数据库中映射单词及其同义词？

Answer 1

同义词是可交换的，但不是可传递的。

我找不到例子，所以下面是人造的:

bank
synonym(bank) = money-institute   => synonym(money-institute) = bank
synonym(bank) = place-to-sit      => synonym(money-institute) = bank

place-to-sit:
synonym(place-to-sit) = bank
synonym(place-to-sit) = chair

NOT synonym(chair) = money-institute

这意味着您只需要一个没有顺序的对列表，并且两个都是另一个的同义词，反之亦然。还有更多您不需要做的事情。

public class SynonymTable {

private Map<Word, Set<Word>> synonymTable = new HashMap<>();

public Set<Word> getSynonyms(Word word) {
    return synonymTable.get(word);
}

public void registerSynonym(Word word, Word... synonymsOfWord) {
    for (Word syn : synonymsOfWord) {
        putSynonymTable(word, syn); // synonym(word) = syn
        putSynonymTable(syn, word); // synonym(syn) = word
    }
}

private void putSynonymTable(Word word, Word synonymOfWord) {
    Set syns = synonymTable.get(word);
    if (syns == null) {
        syns = new TreeSet<Word>();
        synonymTable.put(word, syns);
    }
    syns.add(synonymOfWord);
}
...

<小时/>

数据库变体

CREATE TABLE TWord (
    wordId INT AUTO_INCR,
    wordText VARCHAR(80),
    INDEX(wordText),
    PRIMARY KEY(wordId)
);
CREATE TABLE TSynonym (
    wordFk INT NOT NULL,
    synonymFk INT NOT NULL,
    CONSTRAINT FOREIGN KEY (wordFk) REFERENCES TWord(wordId),
    CONSTRAINT FOREIGN KEY (synonymFk) REFERENCES TWord(wordId),
    PRIMARY KEY(wordFk, synonymFk)
);