Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Forecasting fuel combustion-related CO$_2$ emissions by a novel
  continuous fractional nonlinear grey Bernoulli model with Grey Wolf Optimizer   Foresight of CO$_2$ emissions from fuel combustion is essential for
policy-makers to identify ready targets for effective reduction plans and
further to improve energy policies and plans. For the purpose of accurately
forecasting the future development of China's CO$_2$ emissions from fuel
combustion, a novel continuous fractional nonlinear grey Bernoulli model is
developed in this paper. The fractional nonlinear grey Bernoulli model already
in place is known that has a fixed first-order derivative that impairs the
predictive performance to some extent. To address this problem, in the newly
proposed model, a flexible variable is introduced into the order of derivative,
freeing it from integer-order accumulation. In order to further improve the
performance of the newly proposed model, a meta-heuristic algorithm, namely
Grey Wolf Optimizer (GWO), is determined to the emerging coefficients. To
demonstrate the effectiveness, two real examples and China's fuel
combustion-related CO$_2$ emissions are used for model validation by comparing
with other benchmark models, the results show the proposed model outperforms
competitors. Thus, the future development trend of fuel combustion-related
CO$_2$ emissions by 2023 are predicted, accounting for 10039.80 Million tons
(Mt). In accordance with the forecasts, several suggestions are provided to
curb carbon dioxide emissions.

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The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
14
The categories of this paper are: math-ph
6
The categories of this paper are: astro-ph
26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
2
The categories of this paper are: math