The phrase "a sparse set" is correct and usable in written English.
It can be used to describe a collection or group that has few elements or is not densely populated.
Example: "In the analysis, we found a sparse set of data points that made it difficult to draw any significant conclusions."
Alternatives: "a limited collection" or "a thin array".
Three figures sprawl on a sparse set in front of a huge, slanted mirror.
The ST-PAC system stores a sparse set of experiences provided by a teacher.
The goal was to reconstruct single b-value and/or multiple b-value data from a sparse set of measurements.
First John Murry delivered a sparse set of tunes, culled mainly from his acclaimed album The Graceless Age, which relentlessly reference his heroin problem.
The voting scheme allows us to utilize information from the whole image, rather than rely on a sparse set of keypoint locations.
The low dimensionality of the model enables the algorithm to estimate the response function of an imaging system from a sparse set of scene radiance values.
In this document, areas were classified in ten classes depending on their level of "urbanity", with the most rural category being Hamlets and Isolated Dwellings in a Sparse Setting and the most urban being Major conurbation.
Go early if you want a seat; there are just a dozen tables in a sparse setting.
Finally, an image of a simulated sparse set of single cells is visually similar to the measured cell image.Our simulation methodology agrees with experimental measurements taken with radioluminescence microscopy.
With PALM, only a small fraction of the fluorescent molecules inside a cell are switched on at any given time, transforming a haze of light into a relatively sparse set of bright spots that can be resolved individually and that reveal the position of proteins tagged with fluorescent molecules.
IMPUTE2 uses a reference panel of known haplotypes and a fine-scale recombination map to infer missing genotypes in a study dataset that has been typed at a relatively sparse set of markers.
