Fig. 4: A comparison of the variances of the IMFs for the original text and 100 different realizations of shuffled text for three books in the dataset.
From: A decomposition of book structure through ousiometric fluctuations in cumulative word-time
Lower-order IMFs are more likely to correspond to noise, while higher-order IMFs are more likely to contain relevant information. Note that while technically the trend is not an IMF, for comparison purposes, the trend is included in this plot as the highest IMF order found for a given time series.
