5.2.3. Comparative Study

In this subsection, based on the same training data and test data, several kinds of qualitative knowledge-based models and data-based models are employed to compare with the proposed model.

It can be seen in the Figures 21–23 that the performance of the proposed model is better than other methods, and its assessment accuracy is improved by 10.4%, 20.6%, 8.9%, 14.4%, 15.9%, and 27.6% compared to ER, DS, BP, SVR, BRB, and FR, respectively shown in Table 16.

**Figure 21.** The comparison under ER framework.

**Figure 22.** The comparison with data-based models.

**Figure 23.** The comparison with knowledge-based models.

**Table 16.** Comparison of different models.

