1. Wang, S., Hu, H.: The analysis of the test for English vocabulary learning strategies under relativism. In: IOP Conference Series: Earth and Environmental Science, vol. 692, no. 4, p. 042087 (2021). (5pp)
2. Wang, X., Zhang, D., Asthana, A., et al.: Design of English hierarchical online test system based on machine learning. J. Intell. Syst. 30(1), 793–807 (2021)
3. Huang, D., Zhang, W.X.: Research on learning state based on students’ attitude and emotion in class learning. Sci. Program. 2021, 1–11 (2021)
4. Zhou, J., Ran, F., Li, G., et al.: Classroom learning status assessment based on deep learning. Math. Probl. Eng. 2022, 1–9 (2022)
5. Sun, Y., Tang, J., Zhu, Z.: A method of english test knowledge graph construction. J. Comput. Commun. 9(9), 9 (2021)