MULTI-LIST SYSTEM: FINAL NOTES ON A STUDY INTO AUTOMATIC ATTRIBUTE GROUP ASSIGNMENT.
Technical rept. no. 4,
SPERRY RAND CORP PHILADELPHIA PA UNIVAC DIV
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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.