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The system was less successful in predicting lower attention levels, so the students with longer duration of low attention periods were predicted attention level which was too high.
We denote predicted attention levels by classifier m for the test subject u as (A_{u,m}^{(R)}(t)), where R denotes a specific result set.
The reference average attention scores for users 7 to 18 (shown in Fig. 7 as a dashed line) were in range from 2.1 to 4.1, while predicted attention averages (solid line) were in range from 3.0 to 4.0.
Accuracy of the proposed system was evaluated by comparing the predicted attention levels A u,m (t) to the reference attention levels provided by human annotation (A_{u}^{r}(t)).
The predicted attention of a subject u by a classifier m is denoted as (A_{u,m}^{(C)}(t)), and the samples are collected from five iterations of training and testing.
The total number of predicted attention levels was 1560 for datasets A and B and 5760 for dataset C. Table 2 presents a comparison of attention estimation accuracies of seven evaluated classifiers for five data sets and allows us to estimate the influence of several factors on the accuracy of predictions.
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Attention to fiction and poetry inspired by I Samuel 16 through I Kings 2 -- the biblical books that tell David's story -- might predict attention to that account as itself literature.
Number of learners is 30; subspace dimension is 4. We trained seven simple to complex classifiers and compared their overall accuracy in predicting attention on the testing data.
On the other hand, person 5 caused most dissimilar scores among different classifiers, which indicates difficulties in predicting attention due to very small amplitude of head and body motion.
How well the NBAS predicts attention later in childhood is also uncertain.
Cross-sectional data are emerging that indicate that physical performance predicts attention and speed of cognitive processing in FM [ 58].
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com