IntroductionBig Data are large data volumes characterized by the 8 Vs: 'Volume' [1], Variety, Velocity [2], Variability, Value, Volatility, Validity, and Veracity [3]. A popular way to access and use this vast amount of information is the analysis of online search queries [4,5], with the most notable research on the subject taking into account data from Google Trends [6]; a tool that measures variations in the online interest. The validity of Google Trends' data has been undoubtedly shown [7], while many studies have suggested that they are valuable, accurate, and of high benefit for forecastings [8-13], predictions [14] and nowcastings [15], in analyzing online interest [8], and in decision making [3].Google Trends as a tool is highly integrated in research, with notable contributions in the fields of health and medicine [16][17][18][19][20][21][22][23], economics and finance [4,[24][25][26][27], and the environment [28]. The use of Google Trends in political science in general and in predicting election and referendum outcomes in specific is showing promising results so
AbstractIn addressing the challenge of Big Data Analytics, what has been of notable significance is the analysis of online search traffic data in order to analyze and predict human behavior. Over the last decade, since the establishment of the most popular such tool, Google Trends, the use of online data has been proven valuable in various research fields, including -but not limited to-medicine, economics, politics, the environment, and behavior. In the field of politics, given the inability of poll agencies to always well approximate voting intentions and results over the past years, what is imperative is to find new methods of predicting elections and referendum outcomes. This paper aims at presenting a methodology of predicting referendum results using Google Trends; a method applied and verified in six separate occasionsSaid referendums were of importance for the respective country and the EU as well, and received wide international attention. Google Trends has been empirically verified to be a tool that can accurately measure behavioral changes as it takes into account the users' revealed and not the stated preferences. Thus we argue that, in the time of intelligence excess, Google Trends can well address the analysis of social changes that the internet brings. which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.