This study proposes and investigates file ordering and retrieval techniques which, it is hypothesized, will: (a) reduce the average cost of retrieving records which satisfy a query, and (b) increase the rate of retrieval in the initial portion of the response period. (8 references) (Author)

Retrieval performance with automatic term classifications for three test collections has been variable. This paper attempts to discover why. The real difference between the collections is in the separation of relevant from non-relevant documents. The separation is so poor that classification cannot be expected to succeed. (14 references)…

The Retrieval of information by means of freely-chosen descriptors may be handled efficiently by creating an inverted file organization in an adaptive manner, entries in this file being generated by sequential searching of the master file, when required. (Author)

An English summary is provided for this French article which describes the first stage of a research project using the Bose, Ghosh and Abraham theory with attributes of multiple values applied to a file containing a large number (10 6) of records. (7 references) (Author/SJ)

Substantial degrees of compression of bibliographical data bases result from the application to them of a modified form of run-length coding. (14 references) (Author)

The problems of using English for information retrival are delineated. The querying capability of a keyword dialog system is illustrated with actual computer output. Major advantages of this approach are: reduced ambiguity in requests, users may think in smaller functional units, and users may edit previous requests. (7 references) (Author/SJ)

A design method for information retrieval systems, based on a modelling technique, and derived from the general objectives and tasks set for the system is described. (12 references) (SJ)

A high degree of constancy has been found in the microstructure of titles of samples of the INSPEC data base taken over a three-year period. Character and digram frequencies are relatively stable, while variable-length character-strings characterizing samples separated by three years in time show close similarities. (2 references) (Author/SJ)

The social sciences require multiple methods of analysis of information from complex data bases. Data bases have been constructed which contain hierarchical, spatial, and temporal associations among information elements. To provide effective processing capability an integrated approach was taken to facilitate storage and retrieval, statistical…

The paper describes TSAR, a current awareness or SDI system which has been developed for processing MARC records in general, but is particularly concerned with the INSPEC service. Some statistics on the frequency of occurrence of words and comments on data compression conclude the paper. (7 references) (Author/SJ)

Reports on a series of programs that have been developed to process data bases, consisting of textual items, and to index and arrange (classify) the data items in accordance with an automatically generated classification system. (Author)

The development of special-purpose information products for clients of the LEADERMART information retrieval system is described. (9 references) (RS)

This paper describes a technical document center providing remote-terminal retrospective search capability and shows its evolution from the traditional catalog card operation. (2 references) (Author)

A data base designed for scientists, engineers, and others in need of factual information developed under the Long Range Research Project at Indiana University is described. (3 references) (SJ)