The phrase "a valid feature for" is correct and usable in written English.
It can be used when discussing the appropriateness or acceptability of a specific characteristic or aspect related to a subject.
Example: "The software update includes a valid feature for enhancing user security."
Alternatives: "an acceptable characteristic for" or "a legitimate aspect for".
They were a valid feature several years ago, but they are no longer valid options to use.
Note that, (hat {mathbf {x}}) does not necessarily correspond to a valid biometric feature vector (i.e., PCA coefficients for faces or fingerprint minutiae information).
Multimodal biometrics provides rich information in biometric recognition systems, thus a valid multimodal feature fusion framework and an efficient recognition algorithm are desirable for multimodal biometrics systems.
"A valid unnamed feature," Arcari said, turning the laptop so that I could follow along as he recorded it onscreen.
In order to construct a valid classifier, feature words selection is another main problem.
Arrays were scanned with Agilent's G2565AA Microarray Scanner System and analyzed using Agilent Feature extraction software (Agilent Technologies), which calculates log ratios and P values for valid features on each array and provides a confidence measure of gene differential expression by performing outlier removal, background subtraction, and dye normalization for each feature.
To determine differentially expressed genes, we performed a two-tailed t-test (equal variance) across three DHT− replicates and three DHT+ replicates for all 46,713 array features having a valid measurement for all 6 replicates.
The importance of such a feature for valid exposure assessment in epidemiologic studies is underscored by recent research to develop methods to identify utilities that have low spatial variability of DBP (Hinckley et al. 2005a).
Thus, the final design of the guinea pig 44 K microarray comprised of a total number of 45,220 features including 29,846 valid features from different mammalian species, 1,132 probes for guinea pig transcripts and 12,825 probes for guinea pig ESTs, 1,264 Agilent positive controls and 153 Agilent negative controls.
If, in addition, the new system provides a valid framework for scientific research on dengue pathogenesis, this feature should be regarded as a bonus.
