macroeconomicsfeature extractionpricingconvolutional neural netscryptocurrenciestransaction processingrecurrent neural netseconomic forecastingBitcoin price forecasting methodCNN-LSTM hybrid neural network modelshort-term pricevalue predictiondirection predictionsingle structure neural networkconvolutional neural networklong short-term memorytransaction datamacroeconomic variablesinvestor attentionfeature extractionfeature vectorsdigital currencies market