The formula to calculate the Aitchison distance between two generic vectors x and y of length m is: dA x, y = 1 m−1 m ln xi − ln yi 2 m i=1 j=i+1 xj yj (9) As for SMAPE, we computed Aitchison distance on CPM
To overcome this limitation, researchers have developed radiation transfer inversion models that calculate reflectance using various input parameters [70]. By using UAV images over satellite images, there are advantages such as the estimation of vegetation height and the ability to analyze canopies from...
either provided by the manufacturer or determined following optimization. The activity meter (dose calibrator) guarantees accurate measurement of the administered activity to the patient, while the gamma camera enables the assessment of the radiopharmaceutical...
It would be advisable to calculate p-values both analytically and by comparison with random sequences that would have to be generated by shuffling the actual viral genomes (preferably, trying Markov models of different orders). Under this approach, it is necessary to generate many (at least, 10...
1a is \(\gamma = \frac{7}{{16}}\). Therefore, we use Eq. 1 to calculate that the fraction of variants with the orange mutation that survive is \(F_{r,a} = \frac{7}{{16}} \times \frac{{4/7}}{{4/16}} = 1\). Performing the analogous calculation for Fig. 1d correctly...
The construction of urban green efficiency refers to Yu’s method (Yu and Ping2021) and uses the super-efficiency SBM model and the Globe Malmquist–Luenberger index to calculate green total factor productivity. The specific input-output indicators are shown in Table1. ...
The ‘gamma-identity’ fit on original data was found to produce the best fit in the NT, LRBC, and AC phases, and was thus used. Differences in runoff between NT, LRBC, and AC were assessed via the Mann–Whitney U test using calculated treatment effects (Te). To calculate Te, the ...
The second phase is to calculate the similarity between the vectors to determine how closely aligned the EGC is with the official product information. For similarity measurement, cosine similarity was chosen as the primary metric. This decision was based on its sensitivity to directional relationships...
So this is where I wanted to use a multiple regression output And I want to calculate error as well , which error metric would you suggest be best? I wanted to use MAPE but it has the form like diff/actual… where actual is of the form ([lat, long)] so I cant divide it with ...
Plants' ecological strategies are usually determined by the intricate combination of underlying traits relevant to resource acquisition, allocation, and growth processes. The interplay of key characteristics in various plant types suggests that the diversity in plant ecological approaches is predominantly infl...