[Retracted] Cluster Coordination between High-speed Rail Transportation Hub Construction and Regional Economy Based on Big Data

Table 9

Number of trials or attempts at learning.

Year	Comprehensive	Business	Residential	Industry	PEI 2.5 K
2016	1.34	1.38	0.9	0.58	0.33
2017	2.32	3.6	2.84	3.93	3.08
2018	5.5	4.98	4.18	3.29	2.89
2019	2.38	3.77	2.85	4.86	1.83
2020	6.21	5.06	6.18	6.83	5.88