英语释义

1. a result that shows something is present when it really is not
The test produced too many false positives to be reliable.

2. relating to or being a test result or an individual that is erroneously classified in a positive category (as of diagnosis) because of imperfect testing methods or procedures
a false-positive pregnancy test … one must bear in mind the cost of needless medical procedures generated by the huge number of false-positive mammograms …
— David Plotkin, The Atlantic Monthly, June 1996 — compare false-negative

片语

False e positive错误确信

biologic false-positive生物学假阳性

a false-positive假阳性

false-positive rates假阳性率

false-positive message假阳性信息

false-positive reduction去假阳

false-positive identification假阳性鑒定

false-positive errors假阳性错误

英汉例句

• 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。

• these will help exclude false positive signals.

  这些设备将有助于排除错误的阳性信号（大概是在探测器里「呼」地跑出来的信号而不是根据缺失某部分而令人知晓信息的意思吧，译注）。

• anti-pattern: an incremental build is run to save time; however, an older artifact (from a previous build) produces a false positive (or false negative) build.

  反模式：运行递增式构建是为了节省时间。但是，旧的工件（来自前一个构建）会形成误判（或漏判）构建。

• 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。

• 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。

• 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。

• 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。

• to take this even one step further, you need to decide what percent of false negative vs. false positive is acceptable.

  为了使之更进一步，还需要决定可以接受的假负与假正的百分比率是多少。

• 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。

• 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。

• 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。

• it is important to rule out fractures and degenerative diseases in any patient as they may cause false positive interpretations.

  但有些其他的疾病需要与骨转移相鑒别，例如骨折和退行性变，因为这两种病变也可以造成放射性物质的过多吸收造成假阳性。

• 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。

• 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。

• experts said consuming some foods or drinks before breath tests can cause a false positive reading.

  专家认为在酒精测试前大量食用某些食物或者饮料可能会使酒精呼气测试产生假阳性。

• by avoiding the equals operator jsunit can avoid many false positive test runs.

  通过避免相等操作符，jsunit能够避免许多看似正确实则错误的测试。

• 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）。

• 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。