Sentences with phrase «number of false positive»

Professors Caroline de Costa and Jan Dickinson wrote an editorial in the MJA calling for the test to be more widely available Professor de Costa told the ABC that «one of problems with existing technology is that there are a certain number of false positive results.»

In healthy, low - risk populations FIV is quite uncommon, and this leads to an increase in the relative number of false positive results.

Used in conjunction with mammography, imaging based on nuclear medicine is currently being used as a successful secondary screening alongside mammography to reduce the number of false positive results in women with dense breasts and at higher risk for developing breast cancer.

First, the number of false positive results is rather high and varies widely by state.

Inappropriate testing for heart attacks increases the cost of treatment; increases the number of false positives, which could lead to further testing and unnecessary consultations; and adds to patient anxiety, said Dr. Anil Makam, Assistant Professor of Internal Medicine at UT Southwestern and first author of the study published today in JAMA Internal Medicine.

NASA has allowed the team to keep another 400 candidates under wraps to give the team a chance to follow - up on its own and minimize the number of false positives.

At the same time, there are a high number of false positives associated with screening programmes, meaning healthy people are inappropriately identified as having a potential condition, leading to overdiagnosis and overtreatment.

Given that combining different summary statistics is likely to reduce the number of false positives, for the remainder of the analysis we defined highly differentiated regions as the 102 genomic intervals that show significant differentiation for both metrics.

False - discovery rate (FDR) was used to correct for multiple testing and to estimate the number of false positives [55].

[10] They find that given the correlations we typically see among different measures of teacher performance, there is likely to be a significant number of false positives and negatives: teachers falling into one performance category according to one measure and into a different category according to another measure.

Search services specializing in opinions held by the public (ie, «cloudsourced» ones like Google) are a much weaker tool, and generate huge numbers of false positives.

A clause was also added giving context to the number of false positives in the research.

Not exact matches

Does the risk of false positive results outweigh the benefit of preventing a small number of deaths from breast cancer?

As the number of observations increases, so does the risk of false positives (type I errors).

It must be sensitive enough to highlight potential problems, but not so broad that it generates high numbers of false - positive results, said Dr. Dean Foti, a clinical assistant professor of neurology at the University of British Columbia.

While there are a number of portable tests for cocaine commercially available, these are mainly based on antibody reagents, which can not offer quantitative data and — since the cocaine antibody can bind to something that is not cocaine — can give false positive results.

In their study (1), Sebastiani et al. used a number of different genotyping platforms and neglected to perform data quality - control steps, which resulted in their reporting several false - positive single - nucleotide polymorphism (SNP) associations.

The short note, by Editor - in - Chief Bruce Alberts, acknowledged that the study's authors «used a number of different genotyping platforms and neglected to perform data - quality control steps, which resulted in their reporting several false - positive single - nucleotide polymorphism (SNP) associations.»

We used a false discovery rate rather than standard significance measures to avoid an inflated false - positive rate as a consequence of the large number of hypothesis tests (42).

However, given the large number of individuals that contributed to each RNA pool, it is unlikely that the genes for which we do detect differential expression represent false positives arising from high among - individual variance.

The sample number was progressively reduced to 129 KOIs on 125 target stars, by removing already known false positives, stars too faint to be observed by SOPHIE, and candidates with orbits of more than 400 days, to insure that at least 3 transits could be observed.

«The meta - analytic study requires a certain number of studies (at least 17 - 20 experiments) to detect smaller effects and to avoid false - positive results (if the findings are driven by the effect of single experiments),» Zinchenko said.

To be fair, however, with all the data rolling in, is it not best to be conservative and limit the number of «false positives» that creep out?

Because we tested a large number of associations, false - positive relations are a possibility.

However, increasing numbers of false - positive tests have led to unnecessary medical treatment.

Scientists at Harvard University studied a staggering 16 million women and found a significant number of «false positives» - cases where women were wrongly Wondering why your online crush is acting weird?

Identifying too many false positives may negatively impact the efficacy of intervention efforts by forcing intervention program ratios to greatly exceed these numbers.

I made a number of suggestions how they could improve the site to take account of the way that reviewers review books — both to miss all the false positives they seem to be generating, and also take account of suspicious patterns in book reviews they were missing.

Because the number of potential factors is practically unlimited, and stock price changes are largely random, hundreds of false positives are inevitable.

Although PCR testing methods offer promise, these techniques result in relatively high numbers of false - positive and false - negative results, so they are not routinely being recommended.

Diagnosis of canine dirofilariosis in animals which originate from a low - endemic region is difficult for 3 main reasons: 1) possible absence of circulating microfilariae (occult disease), 2) high frequency of a low number of adults, which in turn produces false negative results, using either ELISA or latex agglutination test, 3) possible false sero - positive results, due to cross-reaction with adult antigens of Dirofilaria (Nochtiella) repens (Schrey, 1996), the agent of subcutaneous dirofilariasis causing chronic pruritic dermatitis in dogs (Tarello, 1999).

As their study reveals, the majority of the coverage of the proposed pipeline regarded the creation of jobs, which was overwhelmingly discussed in a positive light, with most news outlets reporting only the industry's own analysis of the jobs that would be created, even as reports repeatedly showed the industry's job numbers to be false.

Critique 1) I have no idea about any cleansing, homogenisation or aggregation performed on this data prior to its presentation by Rutgers 2) Snow extent is only 1 part of the issue, thickness and mass would need to be considered for a full picture 3) I haven't taken care to provide exactly similar sample sizes, however the F and t methods do not require it 4) I haven't taken care to ensure that the same number of winter periods are present in each sample batch; this would increase the risk of a false positive and would have required further investigation if a weak indication of significance had been detected.

So when discussing the efficacy of such tests, medical professionals tend to speak of sensitivity and specificity, measures that focus on the number of true positives and true negatives, the logical siblings of false positives and false negatives.

It sounds simple enough, but Craig says the real value of AI will be in reducing the number of «false positives» that trip up such systems and recognize significant variations in the way employees, customers and entire systems behave or operate on a 24/7 basis.

An important concern for the court is therefore the number of any such false positives.

Plus, I suspect they are far out - weighed by the number of «false positive» Facebook «Likes,» self - promotional tweets and glowing reviews written by friends, family and gnomes on sites like Fiverr, who will post such huzzahs in exchange for five bucks.

Nest says that should help cut the number of push notifications people get, since the algorithms will be reducing false - positives.

Fourth, some of the disorders that were found to be significant are likely to have been false positives owing to the large number of tests performed.

Second, reliance on CD alone to predict APD has been found to result in a substantial number of false - positive predictions (Lahey et al. 2005; Maughan and Rutter 2001; Storm - Mathisen and Vaglum 1994), whereas recent findings suggest that, in particular, the combination of externalizing and internalizing problems in adolescence predicts more serious antisocial outcomes than conduct problems alone (e.g., Fombonne et al. 2001; Sourander et al. 2007).