Investigating Cryptocurrency Trends with Big Data and Time Series Analysis
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The interest in cryptocurrencies has exploded over the last years and are heavily debated in socialmedia. Concretely,we look at the relationship between Bitcoin prices and Reddit posts for the period 2013 to 2018. Approximately 600 000 posts have been preprocessed and a sentiment analysis carried out. A Granger causality analysis of three time periodes suggests there is a weak link between very positive post sand Bitcoin price for the ﬁrst two periodes.