Proceedings of the IEEE, Vol.
Data compression accepts some intentional distortion for coding.
Data compression should discern the actual data and the environment of the data. It is the environmental data that are not included. Although this set supports design and implementation of applications, it is unable to specify parameters for systems to request symmetric processes such as a real time decoding process and a real time encoding process. However these sets do not support computing coding functions. Proceedings of the IEEE, Vol.