An intermediate lexicon is described that employs a technique which allows, for a given subject area, the automatic translation of subject indexing from one indexing scheme into another. The lexicon was structured according to the principles of faceted classification and contained approximately 1,000 entries covering the field of library and…

THE AVAILABILITY OF STUDENTS AT THE UNIVERSITY OF DAYTON HAD SUGGESTED THEIR POSSIBLE USE AS INDEXERS FOR INDEXING DOCUMENTS FOR THE AEROSPACE MATERIALS INFORMATION CENTER (AMIC). A STUDENT HAD BEEN EMPLOYED TWO YEARS AGO AND INFORMALLY TRAINED IN INDEXING. THE SUCCESS OF THAT EXPERIENCE, THE SUCCESSFUL DEVELOPMENT OF A CONTROLLED VOCABULARY, AND…

THE REPORT DESCRIBES THE EFFECTS THAT A CONTROLLED VOCABULARY HAS ON THE INDEXING AND SEARCHING OPERATIONS OF THE DOCUMENT RETRIEVAL SYSTEM ESTABLISHED BY THE UNIVERSITY OF DAYTON FOR THE AIR FORCE MATERIALS LABORATORY. THE SYSTEM CONTAINS ABOUT 30,000 SCIENTIFIC AND TECHNICAL REPORTS COVERING ALL ASPECTS OF MATERIALS RESEARCH AND IS CONTROLLED BY…

Part-time indexers were trained according to a previously established training program. The performance of experienced indexers was compared to the performance of these index trainees. Several makes of microfiche readers were evaluated, particularly with regard to their use by indexers. One make offered the most advantages, and a number of these…

Reexamines the feasibility of automatic thesaurus generation by establishing a framework for analyzing the degree of correspondence between automatically generated thesauri and a thesaurus of the same terms constructed by subject specialists. (Author/FM)

This experiment used five index languages to form nine different index files to the same collection of documents. Each index term, in each language, was treated in two ways: as an independent English term, and as a coded entry in a faceted-type thesaurus which specified relationships between terms. The performance effect of the thesaurus was then…

THE CREATION OF AN INDUSTRIAL SYSTEM OF MACHINE TRANSLATION WITH AUTOMATIC INDEXING OF THE TRANSLATED MATERIALS PRESUMES THE DEVELOPMENT OF DICTIONARIES WHICH PROVIDE FOR THE IDENTIFICATION OF KEY WORDS AND WORD COMBINATIONS, FOLLOWED BY THEIR TRANSLATION INTO THE DESCRIPTORS OF THE SEARCH LANGUAGE. THREE SIGNS WHICH SHOW THAT A GIVEN WORD IS A…

Some problems encountered with the ERIC indexing system in efforts to retrieve information from the ERIC files are discussed. (4 references) (Author/NH)

A STUDY WAS MADE OF THE FEDERAL AVIATION INFORMATION RETRIEVAL SYSTEM (FAIRS), WHICH SERVES DIVERSE INFORMATION NEEDS OF THE AGENCY'S TECHNICAL AND ADMINISTRATIVE PERSONNEL. FAIRS WAS DEVELOPED TO OPERATIONAL CAPACITY BY (1) ASSIGNING DESCRIPTORS AND IDENTIFIERS TO REPORTS TO PREPARE THEM FOR SUBSEQUENT RETRIEVAL, (2) EXPANDING, DEVELOPING, AND…

Describes the National Aeronautics and Space Administration (NASA) Lexical Dictionary (NLD), a machine-aided indexing system used online at the NASA Center for AeroSpace Information (CASI). The functions of NLD system components are described in detail, and production and quality benefits resulting from machine-aided indexing at CASI are…

TWO CHEMISTRY GRADUATE STUDENTS WERE TRAINED IN INDEXING TECHNICAL DOCUMENTS THROUGH AN ESTABLISHED TRAINING PROGRAM WHICH WAS MODIFIED FOR IMPROVEMENT. A STUDY OF INTRA- AND INTERINDEXER CONSISTENCY WAS MADE BY SUBJECTING A GROUP OF TECHNICAL DOCUMENTS TO INDEPENDENT INDEXING BY VARIOUS INDIVIDUALS AND TWO OF THE SAME INDIVIDUALS ONE YEAR LATER.…

Three specific contributions to the field of information retrieval are presented. The first two describe the establishment of an adaptive, interactive man-machine dialogue that produces a form of unsolicited librarian-like assistance for the user in his selection of index terms to characterize an indexing function. The data set upon which the…

Presents an algorithm that automatically extracts words and phrases containing geographic place names or characteristics from a text document and uses them as input to database functions that use spatial reasoning to approximate statistically the geoposition referenced in the text. Preliminary results and future work are discussed. (28 references)…

A study was conducted of the International Information Service in Physics, Electrotechnology, Computers, and Control (INSPEC) selective dissemination of information (SDI) user profile generation. Five degrees of user involvement in the generation of profiles were investigated ranging from having the user provide only a statement of subject…

A SET OF GUIDELINES FOR IMPLEMENTING AND OPERATING A REPLICA OF A PROTOTYPE SELECTIVE DISSEMINATION OF INFORMATION (SDI) SYSTEM TESTED AT U.S. ARMY NATICK LABORATORIES, AND REPORTED IN LI 000 273, IS GIVEN IN THIS MANUAL. INFORMATION IS SUPPLIED WHICH IS USEFUL IN THE INITIAL STAGES OF IMPLEMENTATION. THE APPLICATION OF SPECIFIC CRITERIA FOR…