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A vector error correction model (VECM) model was developed based on data from 1990 to 2010 to inspect the short and long run causal relationships between CO2 emissions and economic growth in China. The causal relation results show that CO2 emissions does not affect economic growth in the short or long run, but that economic growth excites CO2 emissions in the short run. The results show that low-carbon...
The rapid development of Internet technology has also driven the development of electronic commerce, but electronic commerce because of information asymmetry and prone to crisis of trust. So the particle swarm optimization BP neural network model is applied to C2C e-commerce degree evaluation of trust, By using PSO algorithm to optimize the BP neural network's connection weight values and threshold...
Grey prediction has advantages of need less historical data, foperating speed is fast, algorithm is simple, easy to test, so it is suitable for use in power load forecasting. But grey model has some limitations, the data dispersion degree is more bigger, the gray is also more bigger, it will reduce the accuracy of prediction. This paper adopts the moving average method to improve the raw data, so...
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