The phrase "a robust approximation" is correct and usable in written English.
It can be used in contexts where you are discussing a strong or reliable estimate or representation of a value or concept.
Example: "The researchers provided a robust approximation of the model's performance based on the initial data collected."
Alternatives: "a strong estimate" or "a reliable approximation."
The performance gap due to imperfect channel knowledge was analyzed in [2], and a robust approximation technique has been proposed for this mismatch.
Further, to efficiently obtain a robust approximation, the support vector regression (SVR) is suggested to construct the surrogate model in the vehicle ORS design process.
In this study, we present a robust approximation to solve the system of linear equations (2), by considering the probability that the total system in state n → is written as a product of steady state probability of each WSP.
The values of H′ and β during solar flares were modeled considering the values at mid-path location as ambient values along the entire TRGCP, which is a robust approximation that has also been used in earlier research (e.g., McRae and Thomson 2000).
Then, for each subject, the independent components were estimated using the fast-ICA method, which minimizes the mutual information of the components using a robust approximation of the neg-entropy as a contrast function and a fast, iterative algorithm for its maximization [31], [29].
The values in the similarity matrix can be seen as a robust approximation of the Pearson correlation (see Section 'Methods').
This paper presents a robust approximation-free design methodology of tracking problem for a class of uncertain switched nonlinear systems under arbitrary switching.
We demonstrated that our approximation can provide a robust estimation of the posterior probability of transmission routes in an outbreak and may be used to rule out transmission events at a particular probability threshold.
As expected, g 2 leads to a more robust approximation, since Q(g 2 is almost colinear with Q g. Even though, g 1 results are very closed to exact ones.
Therefore, 5 seconds per mile is a fairly robust approximation.
(3) Chaotic approximation: A robust chaotic approximation to update the appearance model is introduced, which is crucial to select the discriminative and robust features.
