An Algorithm for Construction Project Cost Forecast Based on Particle Swarm Optimization-Guided BP Neural Network

Table 3

Comparison of prediction results of different algorithms.

Test sample	True value	Predictive value
		BP	ARIMA	Ours
214	2263.21	2305.32	2301.25	2271.23
219	2314.20	2412.23	2501.25	2319.22
220	2514.63	2519.65	2501.36	2515.23
222	2412.22	2432.33	2438.52	2410.25
225	2272.58	2289.25	2279.01	2274.36