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词汇 Hamming metric
分类 英语词汇 英语翻译词典
释义

Hamming metric

中文百科

汉明距离 Hamming distance

（重定向自Hamming metric）

在信息论中，两个等长字符串之间的汉明距离（英语：Hamming distance）是两个字符串对应位置的不同字符的个数。换句话说，它就是将一个字符串变换成另外一个字符串所需要替换的字符个数。

汉明重量是字符串相对于同样长度的零字符串的汉明距离，也就是说，它是字符串中非零的元素个数：对于二进制字符串来说，就是1的个数，所以11101的汉明重量是4。

英语百科

Hamming distance 汉明距离

（重定向自Hamming metric）
3-bit binary cube for finding Hamming distance
Two example distances: 100→011 has distance 3 (red path); 010→111 has distance 2 (blue path)
4-bit binary tesseract for finding Hamming distance
Two example distances: 0100→1001 has distance 3 (red path); 0110→1110 has distance 1 (blue path)

In information theory, the Hamming distance between two strings of equal length is the number of positions at which the corresponding symbols are different. In another way, it measures the minimum number of substitutions required to change one string into the other, or the minimum number of errors that could have transformed one string into the other.
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