Sentence examples for background offset using the from inspiring English sources
To refine a putative centrosome's centre (x(p), y(p)) and compute its radius ρ(p), its mean-illumination-to-background ratio η(p) as well as its total illumination ι(p), we find the best least squares fit of the spot at p to an elliptical 2D-Gaussian model with a background offset (using the trust-region-reflective algorithm (Coleman and Li, 1996) implemented in Matlab).
Find your UTC offset using the map above.
The basic approach consists of offsetting the underlying surface, offsetting of all the trimming loops and the creation of offset trimmed surface using the offset surface and the offset trimming loops.
Prenormalised microarray data (median foreground, median background) was background corrected using the normexp + offset method suggested by Ritchie et al. [ 111] followed by quantile normalization between arrays [ 112] as in Smyth [ 113].
Spot intensities were background corrected using the normexp method with an offset of 50 to avoid zero or negative intensity values [ 80].
A background offset and a scaling factor for each array and dye channel were calculated using the least squares regression procedure, then the generalized log-transformation was applied.
Raw data were background-adjusted using the "normexp" correction method with an offset of 50.
Letterpress and offset use greasy inks.
Foreground intensities were background-corrected using the normexp approach (maximum likelihood variant "mle", offset = 50) as previously reported as the most reliable method for two-colour microarrays where background estimates are available (Ritchie et al. [ 29]; Silver et al. [ 30]).
The correlation functions demonstrated single exponential decays with a constant background offset.
The median intensity data were corrected for background using a normal-exponential convolution model with method "normexp", offset = 50 using the function backgroundCorrect, and loess-normalized using the function normalizeWithinArrays, after which the data were normalized for between-array normalization using vsn (variance stabilization) [ 31, 37, 38].
