But the selectivity calculated in this way is not as accurate as selectivity calculated using data distribution.

但是，使用该方式计算的选择性不如使用数据分布计算的选择性准确。

youdao

The project blog has just put up a fascinating (to me, at least) post about the way in which they've calculated what they believe is a reasonably accurate count of every book in the world.

这个项目的博客刚刚发布了一个令人兴奋的帖子(至少对我来说)，是关于他们是如何测算他们认为比较合理准确的世界图书数目的方法的。

youdao

The number calculated by your machine is likely not accurate.

机器计算出的数字可能并不准确。

youdao

The juxtaposition could not have been more shocking (as it was calculated to be) or more accurate in highlighting the achievement of these African works.

WSJ: Americans' African Inspiration | African Art, New York, and the Avant-Garde | Metropolitan Museum of Art | By Michael FitzGerald

As you can see wind is providing only 0.1% of the electricity demand of the country today (to be strictly accurate, in the 30 minute period the table is calculated for).

FORBES: Why Wind Power Doesn't Work

I'm not sure how your metabolism was tested (it can be tested directly by a breathing test, which is available in some gyms and doctors' offices, or it can be calculated using several different formulas), so the significant drop that you report may not be completely accurate.

CNN: What's the best way to 'kick-start' my metabolism?