Earnshaw, R.A.; Lei, C.; Li, J.; Mugassabi, S.; Vourdas, A. - In: Physica A: Statistical Mechanics and its Applications 391 (2012) 7, pp. 2401-2407
Large-scale data are analysed using the Wigner function. It is shown that the ‘frequency variable’ provides important information, which is lost with other techniques. The method is applied to ‘sentiment analysis’ in data from social networks and also to financial data.