Multilevel Information Granule Construction Model Based on Large Data Environment and Its Application in Time Series

Table 2

Predictive effect of different mining algorithms for traditional time series analysis.

Fourier change				Wavelet transform
Data set source/number (example)	SVM	ID3	PNN	Data set source/number (example)	SVM	ID3	PNN
Coronary care/575	54.83	57.23	54.23	Coronary care/575	60.83	64.23	54.23
Cardiac surgery/871	58.23	63.87	53.22	Cardiac surgery/871	62.23	63.87	62.22
Recovery unit/1482	67.25	68.26	66.53	Recovery unit/1482	61.25	62.26	59.53
Medical and surgical/4000	54.87	56.91	52.19	Medical and surgical/4000	69.87	73.21	65.13
Average value	58.795	61.5675	56.5425	Average value	63.545	65.8925	60.2775