Metrics are based upon how well one determines what orders are fraudulent and which orders aren't to prevent chargebacks and
false positives from happening.
A positive for Google's implementation is that it seems to learn when you erroneously squeeze the device, keeping
these false positives from happening over time.
It's not clear exactly how that works, but it's probably safe to say that this feature may not work all of the time at first, or it may register
some false positives from a Netflix show in the beginning until Amazon refines follow - up mode over time.
I set my doorbell's motion zones to the absolute smallest perimeter possible to limit
false positives from passing trucks.
But the problem of
false positives from picking up unrelated information — what scientists call «artifact» — is still a problem for consumer companies to solve, and the technology that she has seen so far is very rudimentary.
But, the test is extremely sensitive and is prone to
false positives from improper handling.
Clearly says online if taking proton inhibitor hpylori test can come back with
false positives from breath test.
Rejecting Astrophysical
False Positives from the TrES Transiting Planet Survey: The Example of GSC 03885 - 00829
«New test rapidly diagnoses Zika: Paper - based diagnostic avoids
false positives from Dengue fever and other related viruses.»
Avira did score one
false positive from AV - Test when it identified legitimate software as malware during a system scan.
Not exact matches
Still, the president cited his military record and
positive reviews
from Obama and George W. Bush, calling the accusations against him
false.
Specifically, the task force says the «harms and costs of
false -
positive results, over diagnosis and overtreatment» outweigh any «significant reductions in the relative risk of death
from breast cancer.»
Does the risk of
false positive results outweigh the benefit of preventing a small number of deaths
from breast cancer?
Unless you think the amounts of the decay element are varying just the right amount to give a
false positive to highly repeatable tests and calibrations
from samples all over the world (and beyond with meteorites), then you are wrong.
Let the
positive word come first, so that the gospel may undercut the fears which cause men to harden their minds and hearts against any criticism; but then the word of judgment is needed to prevent all that is
positive in the gospel
from creating
false peace of mind in personal life or complacency about our national culture.
Their
positive meaning is lit up only by the fact that in this act He is this God and therefore the true God, distinguished
from all
false gods by the fact that they are not capable of this act, that they have not in fact accomplished it, that their supposed glory and honour and eternity and omnipotence not only do not include but exclude their self - humiliation.
Which brings us back to Oona Stannard's clear and public statement on 25 February that the Government's «draft guidance is a
positive step forward -LSB-... It] helps support schools in counteracting [
false impressions of relationships]
from within their own carefully planned SRE programmes.»
Deactivating the enzymes is done to prevent them
from reacting with the assay in an unintended way and causing
false positives results.
But because issues ranging
from delays in reporting to
false positives can sometimes occur, Wilkerson suggests asking the baby's pediatrician to confirm it came back and if there were any areas of concern.
Highland Park's system will be on
from 7 a.m. to 10 p.m., when the parks are open, to minimize disturbing neighbors with «
false positives,» said Calvin Bernstein, the chairman of the district's Finance Committee and a strong advocate of acquiring the system.
They will experience what a pregnant woman goes through
from morning sickness to a growing belly which will bring a
false positive result when they try the test.
If everyone followed that protocol,
false positives might all but disappear
from journals.»
She points out that the test would have to have a very low rate of
false positives to avoid putting healthy people at risk of picking up diseases
from other, genuinely infected people.
And a
false -
positive result could turn people away
from peanuts unnecessarily.
For criminal investigators, if the database contains 10 close calls that resemble the print
from the crime scene, that's a significant complication, because by definition at least 9 of those 10 are
false positives.
Unfortunately, many other viruses
from the same family, known as flaviviruses, have similar versions of NS1 and can produce a
false positive.
It could spare some women
from having amniocentesis after a
false -
positive screening result.
When deviations
from normal behavior are detected, PREC analyzes them to determine if they are malware or harmless «
false positives.»
The screening has a high
false positive rate because PSA levels rise
from nonmalignant prostate growth.
Though they can't tell for sure
from the data, the researchers say this suggest that patients who had the thallium scans were sent for further testing using the invasive angiography technique because the initial scan gave a
false positive for serious blockage.
These high - energy rays are also easily distinguished
from normal background radiation, cutting down on
false positives.
Walker cross-tests every antiserum with samples
from other species to ensure it's only identifying proteins
from its target, rather than providing
false positive results.
As the authors note, the blood test's» accuracy may be even higher as some of the «
false positives» — healthy cases mischaracterized as AD — may be
from subjects who are actually
positive for pre-symptomatic manifestations of Alzheimer's.
The risk of incurring an unnecessary biopsy because of a
false positive exam increased in this study,
from 1 in 100 women with mammography to 4 in 100 women with mammography plus MBI.
In rare cases, for example, the signal
from a gamma ray may approach the expected signal of a dark matter particle, and proper calibration helps to rule out similar
false positive signals.
Given the lack of mortality benefit of screening, and the moderate to substantial harms that could result
from false -
positive screeningtest results and subsequent surgery, the USPSTF concludes with moderate certainty that the harms of screening for ovarian cancer outweigh the benefit, and the net balance of the benefit and harms of screening is negative.
«As we look at lessons learned
from this outbreak, the high
false -
positive screening rate and other delays in diagnosis may have resulted in unprotected exposure of frontline staff.
Dr. Hodgson cautions that «
false positives»
from MRI screening are common given that this scanning method is so sensitive it detects many changes in breast tissue, most of which are not cancer.
The results indicate that
from the age of 25 to 39 about a third of patients will have a
false positive, and as screening extends to age 75, almost 80 per cent of women screened with MRI will have at least one
false positive.
Researchers believe there are two explanations for the very high
false positive results
from the first stage of the screening process.
Whereas technically the potential threats detected by the system in the past were not
false positives — they did accurately pick up tiny, background amounts of DNA
from organisms naturally present in the environment — in effect, they were
false alarms because they signaled the potential occurrence of a terrorist attack when none had occurred.
Spotting these reactions requires a huge detector the size of a small office building, housed about a mile underground to shield it
from cosmic rays that could yield
false positive results.
And skilled staff in good laboratories can almost always distinguish genuine infection
from a
false positive by carrying out an array of tests.
«At this point, we have no way of knowing if these derive
from an as - yet - unknown archaic group, or are simply
false positives,» says Svante Pääbo of the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany.
Follow - up interviews were obtained
from 1,028 of the women (534 with negative results, 494 with
false -
positive results).
Classifications of the type of
false positive (indicated by the lower lines in Fig. 2) could be derived only for candidates resolved
from follow - up observations.
Results
from these tests provide also in many cases insights into the nature of the sources of the
false positives, which are generally produced by one of several kinds of configurations involving eclipsing binaries (EB).
In addition, tomosynthesis, which provides 3D - like views, may also lessen exposure
from diagnostic workups if early evidence of reduced
false -
positives holds up in larger studies.
The high - amplitude region of depths over 5 % is not covered by candidates in the follow - up program, because the eclipse depth as such identifies these cases as
false positives in planet finding, excluding them automatically
from follow - up observations.
Detecting antineutrinos requires a huge detector the size of a small office building, housed about a mile underground to shield it
from cosmic rays that could yield
false positive results.