Entropy, Volume 24, Issue 1
2022 January - 138 articles
Cover Story: Line-entropy is a nonlinear metric from recurrence quantification analysis used to gauge the level of system complexity. For periodic systems (simple), long recurrent diagonal lines span from border to border and are truncated to unique lengths. Entropy values are high (high complexity). Restriction (masking) of the triangular recurrence area to a tilted box (red/pink) and long lines are truncated at the border to identical lengths. Entropy values are low (low complexity). However, for real-world systems, noise disallows long lines from forming and brings the two entropy values closer together. Thus, entropy values computed from Dow-Jones scores (green) track fairly closely for triangular areas (blue) versus boxed areas (red). View this paper - Issues are regarded as officially published after their release is announced to the table of contents alert mailing list .
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