The goal is to ensure quality for a period of time after you buy it. That can be several days to several weeks, depending on the item. For instance, milk, assuming proper refrigeration, should last five to seven days past its sell-by date before turning sour.
An autoencoder is a neural network that is trained in an unsupervised fashion. The goal of an autoencoder is to find a more compact representation of the data by learning an encoder, which transforms the data to their corresponding compact representation, and a decoder, which reconstructs the original data.
An audio encoder converts analog audio to digital audio signals; A video encoder converts analog video to digital video signals; An email encoder secures online email addresses from email harvesters; A PHTML encoder preserves script code logic in a secure format that is transparent to visitors on a web site; A multiplexer combines multiple inputs into one output; 8b/10b encoder used for fast speed in communication system