نتایج جستجو برای: false positive reaction fpr

تعداد نتایج: 1080794  

Journal: :IEEE Access 2021

Distance metric learning aims to find the most appropriate distance parameters improve similarity-based models such as k-Nearest Neighbors or k-Means. In this paper, we apply problem of malware detection. We focus on two tasks: (1) classify and benign files with a minimal error rate, (2) detect much possible while maintaining low false positive rate. propose detection system using Particle Swar...

2014
NIRMALA DEVI

X-ray mammography is the most widely used modality for screening breast cancer in the early stages. Computer aided detection (CADe) systems intend to help radiologists in improving the detection rate. However, the drawback of CADe systems is that they result in a high false positive rate (FPR). In this paper, a new feature-fusion-based system is proposed for classifying automatically detected m...

Journal: :Clinical chemistry 1997
P J Parsons A A Reilly D Esernio-Jenssen

We describe results of a 3-year study in which 499 paired venous and capillary blood specimens, collected by fingerstick on the same day, were analyzed for lead (BPb) and erythrocyte protoporphyrin (EP). False-positive rates (FPRs) and the proportion of false positives were calculated at four BPb thresholds. At the 100 microg/L threshold, the FPR for all data was 13%, but the proportion of fals...

Journal: :Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology 2011
J A Ross J Johns

OBJECTIVES There is significant variation in cut-off values for mean gestational sac diameter (MSD) and embryo crown-rump length (CRL) used to define miscarriage, values suggested in the literature ranging from 13 to 25 mm for MSD and from 3 to 8 mm for CRL. We aimed to define the false-positive rate (FPR) for the diagnosis of miscarriage associated with different CRL and MSD measurements with ...

Journal: :Fetal diagnosis and therapy 2014
Dahiana Gallo Leona C Poon Mariana Fernandez David Wright Kypros H Nicolaides

OBJECTIVES To assess the performance of screening for preeclampsia (PE) by mean arterial pressure (MAP) at 11-13 and at 20-24 weeks' gestation. METHODS MAP was measured at 11-13 and 20-24 weeks in 17,383 singleton pregnancies, including 70 with early PE, requiring delivery <34 weeks' gestation, 143 with preterm PE, delivering <37 weeks and 537 with total PE. MAP was expressed as multiple of t...

Journal: :Pediatrics 1999
M H Gorelick K N Shaw

OBJECTIVE To review systematically and to summarize the existing literature regarding performance of rapid diagnostic tests for urinary tract infection (UTI) in children. DESIGN Systematic review and meta-analysis. METHODS Published articles reporting the performance of urine dipstick tests (leukocyte esterase [LE] and/or nitrite), Gram stain, or microscopic analysis of spun or unspun urine...

Journal: :Expert Systems 2022

In defect prediction, a high false-positive rate (FPR) caused by class imbalance not only increases the workload of testing and development but also consumes unnecessary costs. Many models against have been proposed to improve accuracy their ability reduce FPR is unclear. To solve these problems, we first BayesNet with adjustable weights, called WBN, in software which an algorithm independent d...

2016
David Pellow Darya Filippova Carl Kingsford

Using a sequence's k-mer content rather than the full sequence directly has enabled significant performance improvements in several sequencing applications, such as metagenomic species identification, estimation of transcript abundances, and alignment-free comparison of sequencing data. As k-mer sets often reach hundreds of millions of elements, traditional data structures are often impractical...

2014
Li Song Liliana Florea Ben Langmead

For a standard Bloom filter, each of the h hash functions could map item o to any element of the bit array. The bit array will often be very large, much larger than the processor cache. Thus, each probe into the bit array is likely to cause a cache miss. Putze et al [5] propose a blocked Bloom filter. Given a block size b, the first hash function H0(o) is used to select a size-b block of consec...

Journal: :PLoS ONE 2008
Till Bärnighausen Claudia Wallrauch Alex Welte Thomas A. McWalter Nhlanhla Mbizana Johannes Viljoen Natalie Graham Frank Tanser Adrian Puren Marie-Louise Newell

BACKGROUND The BED IgG-Capture Enzyme Immunoassay (cBED assay), a test of recent HIV infection, has been used to estimate HIV incidence in cross-sectional HIV surveys. However, there has been concern that the assay overestimates HIV incidence to an unknown extent because it falsely classifies some individuals with non-recent HIV infections as recently infected. We used data from a longitudinal ...

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