INDEXER PERFORMANCE ANALYSIS AND OPERATIONS OF A DOCUMENT RETRIEVAL SYSTEM

Abstract

Two graduate students in chemistry were trained in indexing of technical documents through an established training program. Certain modifications were made which tended to improve the training as evidenced by improved performance. A study of intra- and interindexer consistency was made by subjecting a group of technical documents to independent indexing by various individuals and by two of the same individuals one year later. The concept of essential index terms was introduced. Statistical analysis showed that intra- and interindexer correlation for experienced indexers of essential terms is significant with a probability (p) > 0.999. An evaluation of the indexer trainees showed that essential terms was a better performance criterion than total terms and that high interindexer consistency was achieved. Search requests declined from the preceding year, especially from the AFML. Possible reasons for a decline are presented. A Selective Dissemination of Information (SDI) Program with Chemical Abstracts was initiated. The development of a vocabulary and thesaurus for information science related documents has started. A free indexing technique is being used.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1968
Accession Number
AD0666462

Entities

People

  • Frederic L. Scheffler

Organizations

  • University of Dayton

Tags

Communities of Interest

  • Advanced Electronics
  • Biomedical
  • Human Systems
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Chemical Engineering
  • Chemical Synthesis
  • Chemistry
  • Crystal Structure
  • Heat Transfer
  • Information Retrieval
  • Information Science
  • Information Systems
  • Material Degradation Processes
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Materials Testing
  • Statistical Analysis
  • Students
  • Test And Evaluation

Readers

  • Instructional Design and Training Evaluation.
  • Library and Information Science
  • Systems Analysis and Design