Accession Number : AD0609710

Title :   MULTI-LIST SYSTEM: FINAL NOTES ON A STUDY INTO AUTOMATIC ATTRIBUTE GROUP ASSIGNMENT.

Descriptive Note : Technical rept. no. 4,

Corporate Author : SPERRY RAND CORP PHILADELPHIA PA UNIVAC DIV

Personal Author(s) : Fossum,Earl G. ; Kaskey,Gilbert ; Miller,Forrest ; Mundt,Don F.

Report Date : 01 OCT 1964

Pagination or Media Count : 38

Abstract : The report completes the analyses into the automatic attribute group assignment program of the Multi-List System. The array of attribute groups is subject to updating (adjustment) as new documents add new descriptor associations to the file. An analysis is made of the use of the attribute groups as a means of entry to 'lists' of documents having several descriptors or descriptor ranges in common. It is concluded that the technique is not an efficient method of list organization for a document retrieval application; in general, the objective of combining two or three exclusive descriptors into a 'super-key' cannot be achieved. Some of the data characteristics which a file must possess for this method to be efficient are described.

Descriptors :   (*SUBJECT INDEXING, CLASSIFICATION), CORRELATION TECHNIQUES, STATISTICAL ANALYSIS, SAMPLING, AUTOMATIC, WORD ASSOCIATION, COMPUTERS, INFORMATION RETRIEVAL

Distribution Statement : APPROVED FOR PUBLIC RELEASE