Also known as analogue signal
signal where the time-varying feature is an analogous representation of some other time-varying quantity
An analog signal is a continuous representation of information where the signal itself changes in a way that directly mirrors changes in whatever it's measuring—like how the groove patterns on a vinyl record directly correspond to the sound waves they reproduce. Analog signals matter because they can capture and transmit information smoothly and naturally, though they can be more susceptible to interference and degradation compared to other signal types.
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).