Fuzzy Prediction for Traffic Flow Based on Delta Test

Table 4

Evaluation of the impact of the number of clusters on the prediction by varying it from 1 to 10 for the one-week traffic flow (RMSEs averaged over 100 independent runs are presented, and and denote the RMSE values obtained from training and prediction, resp.).

	Cluster
	1	2	3	4	5	6	7	8	9	10
Mon
	260.31	0.0108	0.0103	0.0102	0.0101	0.0100	0.0099	0.0097	0.0097	0.0096
	265.27	0.0154	0.0180	0.0194	0.0187	0.0196	0.0201	0.0210	0.0212	0.0224
	1.0191	1.4259	1.7476	1.9020	1.8515	1.9600	2.0303	2.1649	2.1856	2.3333
Tue
	226.74	0.0029	0.0026	0.0026	0.0025	0.0025	0.0025	0.0024	0.0024	0.0024
	253.02	0.0174	0.0224	0.0214	0.0211	0.0208	0.0204	0.0200	0.0202	0.0202
	1.1159	6.0000	8.6154	8.2308	8.4400	8.3200	8.1600	8.3333	8.4167	8.4167
Wed
	241.15	0.0053	0.0049	0.0049	0.0048	0.0047	0.0046	0.0044	0.0044	0.0043
	205.69	0.0129	0.0205	0.0212	0.0210	0.0218	0.0227	0.0236	0.0236	0.0257
	0.8530	2.4340	4.1837	4.3265	4.3750	4.6383	4.9348	5.3636	5.3636	5.9767
Thu
	262.33	0.0067	0.0063	0.0050	0.0050	0.0046	0.0041	0.0035	0.0034	0.0032
	280.59	0.0287	0.0308	0.0350	0.0378	0.0405	0.0426	0.0454	0.0436	0.0458
	1.0696	4.2836	4.8889	7.0000	7.5600	8.8043	10.3902	12.9714	12.8235	14.3125
Fri
	258.21	0.0059	0.0063	0.0051	0.0050	0.0049	0.0048	0.0048	0.0047	0.0046
	289.71	0.0110	0.0086	0.0133	0.0133	0.0129	0.0125	0.0134	0.0139	0.0143
	1.1220	1.8644	1.3651	2.6078	2.6600	2.6327	2.6042	2.7917	2.9574	3.1087
Sat
	269.68	0.0025	0.0025	0.0024	0.0024	0.0024	0.0024	0.0024	0.0024	0.0024
	328.19	0.0113	0.0115	0.0112	0.0114	0.0113	0.0111	0.0112	0.0112	0.0112
	1.2170	4.5200	4.6000	4.6667	4.7500	4.7083	4.6250	4.6667	4.6667	4.6667
Sun
	274.15	0.0052	0.0053	0.0052	0.0052	0.0051	0.0051	0.0050	0.0049	0.0049
	316.86	0.0055	0.0059	0.0065	0.0061	0.0061	0.0062	0.0061	0.0068	0.0072
	1.1558	1.0577	1.1132	1.2500	1.1731	1.1961	1.2157	1.2200	1.3878	1.4694