negative instance

基本解释

There could be a lot more, for instance no negative numbers or no percentages over 15.
还有更多的限制，例如不出现负数或百分比不大于 15 的限制。
Conversely, a false negative is a data instance where the model predicts it should be negative, but the actual value is positive.
同样地，假负指的是这样一个数据实例：我们创建的这个模型预测它应该是负的，但事实相反，实际值却是正的。
At one point, the Swiss were even able to charge investors for the privilege of holding accounts in their currency—a rare instance of negative interest rates.
当年的某些时候，投资者如果想拥有瑞士法郎的银行账户，甚至还得交费，这种逆利率的情形十分罕见。

It's not merely a negative thing the way I think modern ideas about law, as for instance, represented in the American Constitution are, which is to say, its function is to prevent wrong doing, to punish wrong doing.
我的理解是,这里的法律,不仅仅指当今的法律条款,比如美国宪法所代表的那些内容,也就是,行使防范错误行为,以及惩罚错误行为的职能
耶鲁公开课 - 古希腊历史简介课程节选

On Facebook, for instance, conversations about Mitt Romney were negative 62% of the time as opposed 38% in the mainstream media.
FORBES: Pew: Social Media, Especially Twitter, Relentlessly Negative Place for Election Talk
Would officers in command of units be given career-ending negative fitness reports if they truthfully advise their superiors that there are real problems implementing the new LGBT policy - for instance, by disclosing that consensual or non-consensual behavior is undermining morale, discipline and morale?
CENTERFORSECURITYPOLICY: D-Day for the US military