The difference between the results of the different studies may be related to the fixed error sources: Both the SCoRE and the IHA methods start from the assumption that there is a GH-JRC with only three rotational degrees of freedom.
However an extension to this fixed error variance has been considered by Gelfond et al. [ 11].
Finally, in order to avoid error accumulation and fixed errors, the training input is the synthesis of the similar mean trend segments and the corresponding fluctuation component segments.
Based on the error information, several blocks are grouped to maintain a fixed error rate for each group, which is called a slice.
The size of each slice will be determined to maintain a fixed error rate which should be the same as the target error.
Fixed errors are defined as errors which are specific to a particular model of aircraft.
Another source of fixed errors could be the assumption that there is a fixed relationship between the bony landmarks and the glenoid.
Precision (P): number of correctly fixed errors divided by the total number of errors detected.
Recall (R): number of correctly fixed errors divided by the total error.
Thus, in order to overcome the shortcomings mentioned above, this paper proposes a novel forecasting model which can avoid both error accumulation and fixed errors.
