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Least squares quantization in PCM

It has long been realized that in pulse-code modulation (PCM), with a given ensemble of signals to handle, the quantum values should be spaced more closely in the voltage region...

1982 IEEE Transactions on Information Theory 14858 citations

Self-efficacy mechanism in human agency.

This article addresses the centrality of the self-efficacy mechanism in human agency. Self-per- cepts of efficacy influence thought patterns, actions, and emotional arousal. In ...

1982 American Psychologist 14800 citations