Utility is a subjective evaluation, a ranking by the individual, and there is no measurement, no extension, and therefore no way for it to be proportional to itself.

效用是主观性的评价，由当事人自己决定，无从衡量，无从延伸，也因此无从让它与自己成比例。

youdao

Utility is a subjective evaluation, a ranking by theindividual, and there is no measurement, no extension, and therefore no way forit to be proportional to itself.

效用是主观性的评价，由当事人自己决定，无从衡量，无从延伸，也因此无从让它与自己成比例。

youdao

To be fair, finding the list of documents that contain the keywords is the easy part, while ranking techniques still involve a lot of black magic and secret evaluation formulas.

公正地说，查找包含关键字的文档列表是件很容易的事情，但是，排序技术却涉及到很多未知的技术和深奥的计算公式。

youdao

As someone who spends much of his time developing ranking and evaluation methods, I certainly understand measures have flaws.

FORBES: Teaching Transparency