The evaluation of this descriptor, as applied to classification tasks, was performed using a support vector machine after the features of the descriptor had been optimized by a genetic algorithm.
The negative coefficient sign for the atomic inductive descriptor Qσ,O is consistent with the physical meaning of this descriptor, as a large Qσ,O value means a large inductive effect of the substituent.
SVM is trained using this descriptor as input.
R6-NitrogensCount: As the name suggests, this descriptor stands for the number of nitrogen atoms present in the compound.
On the other hand, using the predicted adipose tissue's log Kt:p descriptor values with 10% of noise, this descriptor occurs as the root node, on average, in 8.6 of the 10 model trees.
This descriptor, just as the EHD, presents rotation invariance of 45°, and due to the quantized colour space that it uses, it presents also tolerance to change in lighting conditions and hue variations.
As opposed to T-scales, this descriptor set does employ 3D information about the amino acids; hence the molecular structures were first optimized, as some of the properties used are conformation-dependent.
This descriptor is also known as contrast or difference moment.
This was not expected as these descriptor sets provide a continuous value description like the others.
Consequently, in this experiment the average grayscale intensity was used as the descriptor.
Allow me to emphasize that word "modernized" as the descriptor for Title II.
