If he infers that she is interested when she is in fact not interested, then he has made an error of false positive (what the statisticians call the "Type I" error).
如果他推断说,她感兴趣,而她其实上不感兴趣,那么他犯了假阳性的错误(统计人员所谓的“第一类”错误)。
In an example like this, you may judge a minimum of 100:1 false negative: positive ratio to be acceptable.
在像这样的例子中,就可以判断假负:假正的比率最低为100:1才是可以接受的。
Basically, a false positive is a data instance where the model we've created predicts it should be positive, but instead, the actual value is negative.
假正指的是这样的一个数据实例:我们创建的这个模型预测它应该是正的,但事实相反,实际值却是负的。
Operating inconsistencies among systems and apparatus that increases the rate of false positive alarms leads to errors in patient care management, some of which are possibly fatal.
系统和设备之间的操作不一致性会增加假阳性警报,从而导致患者治疗管理的错误,有些错误甚至可能是致命的。
The researchers realized after retesting that the finding was a false positive, but they started talking about ways to communicate clinically relevant information to participants.
研究者后来重复试验发现这是个假阳性结果,但是他们开始讨论如何将相关的临床结果反馈给受试者。
So while false positives from the signal are possible, the combination of EEG and EMG data makes a false positive much less likely.
因此尽管可能出现假阳性信号,但是脑电图和肌电图的组合可以将假阳性的几率大幅降低。
But that introduces false positive results; in other words, some normal tissues are marked as suspicious.
但这却导致了假阳性的结果,换句话说,一些正常的组织反而被怀疑癌变。
Social prejudice against the infected means that a false positive also causes harm.
由于社会对感染者存有偏见,因此假阳性结果也会造成伤害。
So we make two types of errors: a type I error, or false positive, is believing a pattern is real when it is not; a type II error, or false negative, is not believing a pattern is real when it is.
因此我们常犯两类错误:第一类,是虚假的肯定,当原型并不存在时它认为原型是真的;第二类,是虚假的否定,当原型存在时它却认为原型是虚假的。
But this approach is crippled by a very high false positive rate - many partial matches turn up people unrelated to the actual perpetrator.
但这种方法缺陷是有极高的假配对概率:许多部分配对的结果是,配对人与实际的违法人员没有关系。
Instead of denying false rumours, a company should put out a stream of positive messages about itself, reckon Mr Rucker and Mr Dubois.
Rucker先生和Dubois先生认为,企业应该向外界发布一连串关于企业的积极讯息,而非去否认这些错误的谣言。
In Vimscript, as in c, only the numeric value zero is false in a Boolean context; any non-zero numeric value-whether positive or negative-is considered true.
和c一样,在Vimscript中,对于布尔值来说,只有数值0为假;任何非0数值—不管是正数还是负数—都为真。
They then checked 229 positive patients with the gold-standard laboratory test, a Western blot. More than 10% of the rapid tests were giving false bad news.
之后,他们又应用金标准试验——蛋白印迹法(Westernblot)检测了229名阳性患者,结果表明快速检测结果中有超过10%为假阳性。
Low false positive rate: Issues are proven, because the tests are performed on a running application.
低级假阳性率:由于这些测试是在一个运行的应用程序中执行的,因此问题也被证明。
From an industry, and ultimately a consumer, perspective, false-positive detections are a major concern.
从厂商和最终消费者来看,前景与错误积极比率检测是主要考虑的因素。
Researchers suggest redefining the thresholds for specific biomarkers to reduce the chances of false positive tests among people who did not consume alcohol but were exposed to ethanol in other forms.
研究者建议重新规定生物信号的阈值,以减少造成假阳性的机会,假阳性通常出现在未饮用酒精饮料但却接触了其它形式的酒精的人们中间。
Unfortunately, they also have a relatively high false positive rate -- enough that I need to manually examine some of the spam folders from time to time.
遗憾的是,这些过滤器的“误承认”的发生率比较高 —以至于我不时地需要手工来检查垃圾邮件文件夹中的某些邮件。
Gigerenzer then rephrased the statistics: if we ignore the negative tests, nine times out of ten, a positive test for cancer is a false positive.
然后,吉格仁泽用不同的话把数据重新组织了一遍:如果我们忽略掉负面测试,十次中有九次,癌症的正面测试就是错误判对。
A manual back-end process is currently required in EVS to follow-up on potential false-positive export check results.
当前在EVS中需要一个手动后端流程,以进行潜在的错误出口检查结果的后续处理。
In the new study, "after 14 tests total, over half of the people in our study had a false-positive result."
在我们的研究中,如果做上14项检测,会有一半以上的人出现假阳性结果。
This consideration suggests that, along with the false-positive considerations, rapid confirmatory tests will need to be deployed alongside any detection technology used for food defense.
这种考虑建议,通过错误积极比率,我们应需要使用更快速正确的检测方法来普及一些用于食物防御的检测技术。
However, about one in ten of the women who were given extra screening got false-positive results.
但是,大约有十分之一进行额外筛查的被试出现假阳性结果。
Finally, the last point I want to raise about classification before using WEKA is that of false positive and false negative.
在使用weka前,有关分类我还想指出最后一点,那就是假正和假负。
If the model that was used to make the extrapolation is wrong in some way, then the result could be a false positive.
如果我们使用的数学模型在某些方面有错误,那么结果也有可能是错的。
In the final step, the user-defined function (UDF) itself is evaluated to filter out all false positive candidates, in other words, remove all non-equal strings.
在最后一步,对用户定义函数(UDF)本身求值,以过滤掉所有误判的候选者,即去掉所有不相等的字符串。
What deductions can the employer draw from a single positive test (since false positives are common)?
上级雇主,一旦获悉测试结果为阳性,可得何种后续推论?
Mustapha's modification lets food scientists use the PCR test to capitalize on its speed, selectivity and sensitivity, but avoid false-positive tests by differentiating between dead and live cells.
幕斯塔法的修改使食品科学家在使用PCR测试时,可以有效利用其高效性、有选择性和敏感性,并且通过区分死亡细胞和活细胞避免误测。
Blinder thought that after so many false promises on deficit reduction over the last few years, a strong positive response by the bond market was unlikely.
布林德认为,由于前几年削减赤字的许诺都未能实现,债券市场做出强烈反应的可能性不大。
Blinder thought that after so many false promises on deficit reduction over the last few years, a strong positive response by the bond market was unlikely.
布林德认为,由于前几年削减赤字的许诺都未能实现,债券市场做出强烈反应的可能性不大。
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