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Download full textAronson, Jules – 1977
This report delineates the theory and terminology of data compression. It surveys four data compression methods--null suppression, pattern substitution, statistical encoding, and telemetry compression--and relates them to a standard statistical coding problem, i.e., the noiseless coding problem. The well defined solution to that problem can serve…
Descriptors: Comparative Analysis, Computer Programs, Computer Storage Devices, Cost Effectiveness
Everett, Bruce E. – 1977
Current regulations and guidelines established by the Department of Health, Education and Welfare for the maintenance of confidentiality in educational research are summarized. Key terms, such as "system of records" are defined and elaborated upon. The responsibilities of the funding agency and its research contractors are enumerated and…
Descriptors: Administrative Agencies, Agency Role, Civil Liberties, Computer Storage Devices
