RESEARCH BASES OF LANGUAGE DATA PROCESSING SYSTEM DESIGN,

摘要

The major problems other than that of hardware in the design of information retrieval systems are reviewed as they are treated in the literature. The rate-capacity planning problem: That of accurately anticipating the over-all magnitudes of filtering,processing,storing,and service request handling activities that will be demanded of the system in the future. The key to solving a system's rate-capacity planning problems is to find means of accurately predicting the future rate requirements. The accessibility allocation problem:That of assigning different degrees of user accessibility to items of material considered for storage in the system. It is reasonable to assume that an information retrieval system (or a national composite of such systems) will always have limited resources to keep items accessible. An effort must be made to try to predict how many requesters will want each item,when,and how important will be the needs. The system-requester transaction problem: That of improving the results of the interaction process between system and requester by which the requester's current need for materials is defined in terms which the system can use for searching. The research efforts here have two broad focuses. The first centers around improving 'meta-arrangements'like indexing,classification,and abstracting systems which are used to create condensed representations of the items in store. The second focus is on the development of adequate theories of structure for modern written languages.