假设我有两句话：
"敏捷的棕色狐狸跳过懒惰的狗"
"敏捷的棕色兔子跳过懒惰的猫"
有没有一种算法可以检测这两个句子的相似度？例如：
function similarity_ratio($text1, $text2) {
code code code
return $similarity_ratio;
}
$text1 = "The quick brown fox jumps over the lazy dog";
$text2 = "The quick brown cat jumps over the lazy chicken";
echo similarity_ratio($text1, $text2);
// output 88%
function similarity_ratio($text1, $text2) {
similar_text($text1, $text2, $similarity_ratio);
return $similarity_ratio;
}
$text1 = "The quick brown fox jumps over the lazy dog";
$text2 = "The quick brown fox jumps over the lazy cat";
echo similarity_ratio($text1, $text2);
Output: 93.023255813953
看看这个PHP函数：http://php.net/manual/en/function.similar-text.php
你在找这个吗？http://php.net/manual/en/function.similar-text.php.如果速度很重要，请考虑：http://php.net/manual/en/function.levenshtein.php