Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Lianyi Liu"'
Publikováno v:
In Chaos, Solitons and Fractals: the interdisciplinary journal of Nonlinear Science, and Nonequilibrium and Complex Phenomena September 2020 138
Publikováno v:
Applied Mathematical Modelling. 119:447-464
Autor:
Weiliang Zhang, Sifeng Liu, Lianyi Liu, R.M. Kapila Tharanga Rathnayaka, Naiming Xie, Junliang Du
Publikováno v:
Grey Systems: Theory and Application.
PurposeChina's population aging is gradually deepening and needs to be actively addressed. The purpose of this paper is to construct a novel model for analyzing the population aging.Design/methodology/approachTo analyze the aging status of a region,
Publikováno v:
Energy Sources, Part A: Recovery, Utilization, and Environmental Effects. :1-17
In this paper, a new grey Theta forecasting model is established to predict primary energy consumption. The parameter θ is used to adjust the slope of this trend. In addition, this hybrid method ca...
Autor:
Lianyi Liu, Lifeng Wu
Publikováno v:
Applied Mathematical Modelling. 89:1932-1948
In this paper, a new adjacent non-homogeneous grey model was proposed to predict renewable energy consumption in Europe. Based on the principle of adjacent accumulation, the proposed model emphasizes the weight relationship between the latest value a
Publikováno v:
Environmental Science and Pollution Research International
Non-equigap GM(1,1) model with conformable fractional accumulation (CFNGM(1,1)) is proposed to analyze the relationship between energy consumption and carbon dioxide emissions. Two cases are used to prove the validity of the model. In this article, e
Autor:
Lianyi Liu, Lifeng Wu
Publikováno v:
Communications in Statistics - Theory and Methods. 51:3542-3555
Exponential smoothing is one of the most commonly used prediction methods. When the data has obvious periodicity and seasonality, Holt–Winters usually has a good prediction performance. However, th...
Publikováno v:
Mathematical Problems in Engineering, Vol 2020 (2020)
To provide a theoretical basis for the prevention and control of COVID-19 in China, confirmed cases, deaths, and recoveries from COVID-19 in China were predicted using a fractional grey model. The results indicated that the grey model has high foreca
Publikováno v:
Journal of Cleaner Production. 372:133708
Publikováno v:
Journal of Grey System; 2022, Vol. 34 Issue 4, p1-14, 14p