Therefore, the inverse of the optimized l value obtained for a given descriptor gives an idea of its importance for the model.
In terms of resource consumption, SIFT and DWT-based detector plus SIFT descriptor give us the worst result by generating larger data volume than the raw image.
For PFID database, the baseline evaluations by the color histogram and the BOF model using SIFT descriptor give the recognition rates 11.2 and 9.3%, respectively.
For illumination variation, i.e., on YALE 3.1 category, the highest recognition rate of 91.67% is achieved by the proposed ZMmagLBP approach, whereas against expression variation, the ZMmagPhaseLBP descriptor gives the highest recognition rate at 85.56% on YALE 4.1 category.
Between these two descriptors, the LBP descriptor generates higher recognition rate against the illumination and expression variations on YALE 3.1, YALE 3.2, and YALE 4.2 categories while the LTP descriptor gives higher results on only YALE 4.1 category for expression variation.
The Hybrid descriptor gives better performance than either MACCS keys or the shape descriptors presented in this work based on: the recall in the top 1% and top 5% of the validation set, the positive precision, F-measure, Matthews Correlation Coefficient and the area under the Receiver Operating Characteristic curve.
The T(O…Br) descriptor gives a double structural information: its value increases according to both the number and the distance of bromine substituents, on each phenyl ring, from the oxygen ether.
They are odd descriptors, given that many earlier G.M. engines produced more power per cubic inch and more overall power; the automaker's 327-cubic-inch V-8 of 1964, for example, generated 375 horsepower, and G.M. used four-barrel carburetors as early as 1952.
To assess the teachers' assessment ability, we asked the teachers to assess and give scores to the samples based on IELTS writing assessment band descriptors given.
Eight of the nine properties, MW, AlogP, E-state, PSA, HBA, HBD, RC and RB, were directly obtained from the program, whereas EC was calculated from some other descriptors given by the program.
