An access method for bibliographic records that combines features of the search key approach and the inverted file approach. Permits extension of search key technique to large files. (Author/LS)

The report contains five papers dealing with some problems of a general classification scheme covering the whole field of knowledge which were presented at a conference held in London, June 1963. Topics covered included retrieval schemes, classification problems, inadequacies of existing classification schemes and the proposal of the…

The author proposes a system using the HUC to identify all information and knowledge which can be reduced to a written, pictorial, oral, or machine readable record. The code designations, which may consist of letters, numerals, and other symbols and which average 12 to 18 characters in length, provide information in 12 fields: type of material,…

An introduction to the classification principles for documents at the Non-Formal Education Information Center is given for the cataloger. The classification scheme, itemized in the first section, consists of 11 main categories such as concepts, training methods, program content, bibliographies, and countries. The next section details…

This book deals with properties of vocabularies for indexing and searching document collections; the construction, organization, display, and maintenance of these vocabularies; and the vocabulary as a factor affecting the performance of retrieval systems. Most of the text is concerned with vocabularies for post-coordinate retrieval systems, with…