23 research outputs found
시계열 모형을 이용한 일일 전력 피크 예측
학위논문 (석사)-- 서울대학교 대학원 : 통계학과, 2015. 2. 조신섭.Many forecast models such as regression, exponential smoothing method,
fuzzy regression, multilayer perception and extreme learning machine have
been proposed to forecast daily electrical load. But some of the models do not
incorporate the autocorrelation structure and they are not easy to interpret the
forecast results. In this paper, we introduced transfer function and intervention
model using discomfort index, sensory temperature index as input time series
and seasonal eect, sandwich day(the day is between two holidays) eect as
intervention. This model allows us to interpret predictive value and to forecast
more accurately. This model might be quite useful to save power cost and to
supply electricity smoothly1 Introduction 1
2 Models 3
2.1 Related research . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.2 Transfer function model . . . . . . . . . . . . . . . . . . . . . . 5
2.3 Intervention analysis . . . . . . . . . . . . . . . . . . . . . . . . 9
3 Real data analysis 11
3.1 Data description . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.2 Model tting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.3 Forecast result . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4 Conclusion and further discussion 22
Reference 24
iiMaste
Variation of the lattice parameters and its effects on the critical resolved shear stress and mechanical properties of Mg-Al, Mg-Zn and Mg-Li solid solutions
Docto
An internal variable approach to high temperature deformation and superplasticity of Mg alloys
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