Lossy Is Lazy
نویسنده
چکیده
Shannon’s rate-distortion curve characterizes optimal lossy compression. I show here that the optimization principle that has to be solved to compute the rate-distortion function can be derived from a least effort principle: minimizing required thermodynamic effort necessitates the minimization of information (compatible with a given fidelity). Retaining less information costs less physical effort. In that sense, lossy compression is energy efficient, in other words, lossy is lazy.
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