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

Table 4

Comparison of prediction results of different algorithms.

Test sample	True value	Predictive value
		BP-NO-PSO	PSO	BP + PSO (ours)
214	2263.21	2411.31	2357.88	2271.23
219	2314.20	2198.66	2411.44	2319.22
220	2514.63	2318.13	2688.11	2515.23
222	2412.22	2333.67	2422.66	2410.25
225	2272.58	2411.99	2316.43	2274.36