Biological classification thus differs from atomic classification because of differences in the nature of the entities being classified.
In this study, however, application of remote sensing (RS) has been limited to produce of the classification of Normalized Difference Vegetation Index (NDVI) map through the "density slice classification" in ENVI 4.5 environment.
This may reflect differences in measurement or classification of exposure, differences in depression diagnosis by location, or other location-specific factors.
Amplifying and suppressive phase durations are derived from the classification of phase differences inducing a significant change in beta levels with respect to the surrogate time series.
Aside from this overall increase in absorbance, statistically meaningful and reproducible spectral differences are hard to quantify in the three spectra shown in Fig. 2. Chemometric techniques provided a more reliable way to obtain quantitative classification of the differences in the spectra.
On the one hand, a systematic review of observer studies [ 4] did not find that observers disagree on the Neer classification because of differences in clinical experience.
We used a temporal classification of NSCAT daily differences from 5-day smoothed backscatter values to derive three simple indices describing the initiation, primary event and completion of the spring thaw transition period.
We considered Cliff's Delta values on small (or higher) classification as evidences of differences on the sample values.
Yet another straightforward and popular method is to select a classification that maximizes a measure of difference between the two groups, such as the p-value of a chi square statistic [ 9, 10].
Clearly the output of a classifier for borderline cases is critically dependent on the labelling of similar cases in the training data: our study maps the effect of changing training classification criteria in detail, and highlights differences in the classification of borderline cases between different data sets when examined in the context of gene expression criteria.
Figure 7 shows the cumulative distribution of the classification error difference on the two datasets for the respective methods.
