Gold and Bitcoin Price Prediction Model Based on Grey Model

Abstract

As a traditional equivalent, gold has long been a symbol of wealth, traded by countless people. However, with the progress of science and technology, virtual currency has gradually entered our vision and has a great impact on people's life. The purpose of this paper is to accurately predict the price of gold and bitcoin on the premise that the initial conversion is only $1,000, and ultimately maximize the asset. Therefore, the grey model is established to make the prediction. Its advantage is that it improves the long-term dependence problem in RNN; GM generally outperforms temporal recurrent neural networks (RNN) and Hidden Markov models (HMM). By calculation, the price of gold in 2016 was $1,325 and the price of bitcoin was $622; Five years from now, the forecast price for gold is $1,788 and the forecast price for bitcoin is $46,192, with an average margin of error of just 1.7%. According to the model built in this article, investors can predict the next three days based on today's data, so that they can adjust our portfolios based on the forecast results.