1. An adaptive context-based predictor embodied in an electronic device to predict a value {circumflex over (x)} from a context, stored in an electronic memory, corresponding to a noisy-dataset symbol z i , the noisy dataset corrupted with noise modeled as being introduced by a noise-introducing channel, the adaptive context-based predictor predicting symbol {circumflex over (x)} by: adapting, by the electronic device, the adaptive context-based predictor, according to one or more parameters that specify adaptive context-based-predictor operation, at least one of which functionally depends, or partially functionally depends, on a level of noise represented by the noise-introducing channel; computing, by the context-based predictor, a number of intermediate values from the context; computing, by the context-based predictor, the predicted value {circumflex over (x)} from the intermediate values; and storing the predicted value {circumflex over (x)} in the electronic memory.