Accession Number:

AD0093970

Title:

COMMUNICATION THEORY AND STORAGE AND RETRIEVAL SYSTEMS

Descriptive Note:

Technical rept.

Corporate Author:

DOCUMENTATION INC BETHESDA MD

Personal Author(s):

Report Date:

1955-10-01

Pagination or Media Count:

11.0

Abstract:

Relationships are presented of the theory of storage and retrieval systems to the mathematical theory of communication developed by Claude Shannon and Warren Weaver. Most of the concepts which are basic in communication theory are also basic in storage and retrieval theory information, entropy, redundancy, noise, capacity, probability the mathematical relations of these concepts in storage and retrieval theory are not yet known. A collation system approaches maximum efficiency when the 2 series which are being collated approach equality, and items in one series are randomly distributed through the other. Noise in a communication system probably does not arise from the elimination of redundancy, but rather from the limitation of channel capacity or external conditions which effect a communication system, such as background radiation and electric storms. Storage capacity is not analogous to the channel of a communication system, but to the transmitter in which the information or message is converted to a signal. Information selected from a storage and retrieval system may constitute the input of a communication system.

Subject Categories:

  • Computer Programming and Software

Distribution Statement:

APPROVED FOR PUBLIC RELEASE