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。
Failing to remove old build artifacts, which leads to a Polluted Environment causing false positive and false negative errors.
没有清除旧的构建工件，造成环境混乱，引起误判和漏判错误。
This false negative scenario would not have the UPDATE cause a fail if a row change timestamp column was added to the EMPLOYEE table.
如果向EMPLOYEE表添加行修改时间戳列，则漏判场景中的UPDATE不会发生失败。
In contrast, if he infers that she is not interested when she is in fact interested, then he has made an error of false negative (what the statisticians call the "Type II" error).
相反，如果他推断，她不感兴趣，而实际上她感兴趣，那么他犯了假阴性的错误(统计学家称为“第二类”错误)。
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。
He said recent studies have found that it can produce both false positive and false negative results.
他说最近的研究已经发现这种方法可以产生假阳性和假阴性。
It is an imperative issue that reduces the false negative rate and false positive rate in attack recognition.
降低攻击识别中的漏报率和误报率是现在一个急需解决的问题。
Objective To study the false negative of occult blood detection by monoclonal antibody method of gastral fluid.
目的针对胃液潜血单克隆抗体法假阴性实例进行初探试验。
Compared with operation findings, 84 were true positive, 7 false positive, 34 true negative, and 3 false negative.
手术及随访证实真阳性84个，假阳性7个，真阴性34个，假阴性3个。
Objective To study the reasons of false positive and false negative results on 46 case of treadmill exercise test (TET).
目的探讨平板运动试验（TET）假阳性和假阴性的原因。
And the results of experiment manifested that the S-M algorithm has a trait of low false negative and low false positive.
试验结果表明：该算法具有低漏报率和低误报率的特点。
The results show that botnet detection is completed in expected round under controlled false positive rate and false negative rate.
实验结果表明，在保证误报率和漏报率的前提下该方法能在预定检测轮数内完成判定。
The false negative rate of malignant liver tumors in the first biopsy procedure guided by conventional ultrasound was 9.4% (21/224).
恶性肿瘤首次常规超声引导穿刺活检假阴性率为9.4%（21/224）。
Objective to reduce missed diagnosis and false negative diagnosis and to improve the accuracy of fine needle aspiration cytology (FNAC).
目的减少对乳腺癌的漏诊，降低假阴性率，提高针吸细胞学诊断的准确性。
Result: SEP conducted velocity changed significantly at 15 minutes after spinal striking and presented false negative changes for 4 times.
结果：SEP传导速度在脊髓损伤后15分钟出现显著性变化，共出现四次假阴性结果。
Model improves the efficiency of network intrusion detection system with a higher detection rate and low false negative rate by experiment.
通过实验证明，该模型提高了网络入侵检测系统的效率、有着较高的检测率和较低的漏报率。
Combined techniques and pathologic ultrastaging may increase the identification rate and decrease the false negative rate in patients with SLNB.
采用生物活性染料- 放射性核素联合示踪法、病理连续切片及免疫组化染色可提高前哨淋巴结活检的检出率及准确性。
Staphylococcus aureus and pseudomonas aeruginosa in seven TCM ointments from our hospital were detected. Some showed the false negative reaction.
本文对我院七种中药软膏剂进行了金黄色葡萄球菌和绿脓杆菌检测，有的出现假阴性反应。
Experimental results show that the false negative rate and the false positive rate of the hybrid system are both lower than the HMM based system.
实验结果表明该混合系统的漏报率和误报率都低于HMM方法。
A third possibility is delayed fixation and false negative results for the primary tumor, which could explain some of the gain of ER in recurrence.
第三个可能的原因是原发肿瘤延迟固定和假阴性结果，这个能解释复发病灶的ER阳性表达。
Objective The aim is to reduce missed diagnosis and false negative diagnosis, and to improve the accuracy of fine needle aspiration cytology (FNAC).
目的减少对乳腺癌的漏诊，降低假阴性诊断，提高针吸细胞学诊断的准确性。
The main problem of existing static vulnerability detection methods based source code analysis is their high false positive and false negative rates.
现有的采用基于源代码分析的漏洞静态检测方法中存在的主要问题是误报率和漏报率较高。
It not only used pre-image computation to avoid false negative, but also incorporated reachable states and unreachable states in the verification process.
除了利用原像计算避免误判之外，该算法还将可达状态和不可达状态引入到验证过程中。
However, the major obstacle to use technique as a routing is its high false negative rates and inconstant results, especially in paraffin-embedded tissues.
然而，假阴性率高、结果不稳定等因素严重阻碍着该技术的广泛应用，在石蜡组织中尤其如此。
KDD CUP '99 is adopted in experiment and the result shows the model gets the lower false negative rate and false positive rate besides the higher accuracy.
采用KDD CUP99数据集进行测试实验，结果表明：该模型能够获得较高的检测正确率，同时具有较低的漏报率及误报率。
The comparison of 160 cases and 320 controls tested with those examined by fecal occult blood test has exhibited a decrease to 23.750% in the false negative rate.
对160名病人和320名正常人进行判别的结果与通常采用的大便潜血试验比较，假阴性率降低到23.75%。
Results The coincident rate for positive of reexamination methods was 100% and for negative was 100%. There was not false positive result and false negative result.
结果此复检方案的阳性符合率和阴性符合率均为100%，未出现假阳性和假阴性。
Result During routine we had discovered 5 anomalous results of ABO blood grouping by monoclonal reagents. 3 cases were false negative and 2 ones were false positive.
结果在常规工作中，单克隆试剂导致ABO血型鉴定结果异常者5例，最后被确定为假阴性3例，假阳性2例。
Conclusion the simple, frequently used body surface ECG can help diagnose most coronary heart diseases, but there can be false positive and false negative reactions.
结论体表心电图简便、常用，能够帮助诊断大多数冠心病，但存在假阳性和假阴性。
Conclusion the simple, frequently used body surface ECG can help diagnose most coronary heart diseases, but there can be false positive and false negative reactions.
结论体表心电图简便、常用，能够帮助诊断大多数冠心病，但存在假阳性和假阴性。
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