The phrase "an efficient approximation" is correct and usable in written English.
It can be used in contexts where you are discussing a method or model that provides a close estimate with minimal resources or effort.
Example: "The researchers developed an efficient approximation of the complex algorithm, allowing for faster computations."
Alternatives: "a practical estimate" or "a streamlined approximation".
The copula parameters in the vine structure are retrieved using an efficient approximation method.
In addition, our warping method is amenable to an efficient approximation which gives a 50 times speedup and is computable to arbitrary accuracy.
The pole frequencies are seen to be roots of quartic polynomials, and an efficient approximation to the desired roots is provided.
In the challenge we developed a variational method to learn the model and an efficient approximation algorithm for prediction.
We analyze the relationship between interface location and mappings required to obtain an efficient approximation of such functions.
This paper proposes an efficient approximation for the local stresses in transversely isotropic plates under Hertzian contact loads.
Interestingly, the typically considered PBSA-HGM's HGM output and the PBSA-HGM's HM output do not differ significantly in experiment 2, which supports the initial assumption that an HM is a suitable efficient approximation of the echo path.
Such selection task is casted into a combinatorial optimization problem and solved using an existing efficient approximation algorithm.
Recall that our goal is to construct an asymptotically efficient approximation of the couple (Y t,Z t ).
The analysis of Schmandt and Galán focused on an accurate, efficient approximation of Markov processes arising from ion-channel models.
We also present a numerically efficient approximation based on a spatial discretization to trade-off the accuracy of the estimated map against the required computational complexity.
