Conference paper
Fragile imperceptible digital watermark with privacy control
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Proceedings of SPIE - The International Society for Optical Engineering
We present a method for computing the topological entropy of one-dimensional maps. As an approximation scheme, the algorithm converges rapidly and provides both upper and lower bounds. © 1994 The American Physical Society.
D. Coppersmith, Fred Mintzer, et al.
Proceedings of SPIE - The International Society for Optical Engineering
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Ergodic Theory and Dynamical Systems
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Chaos
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Trans. Am. Math. Soc.