TESTS OF INDEXES. A COMPARISON OF KEYWORD FROM TITLE INDEXES WITH AND WITHOUT ADDED KEYWORDS AND A SINGLE ACCESS POINT PER DOCUMENT ALPHABETIC SUBJECT INDEX

Abstract

Three indexes to a collection of 3204 documents in the field of chemistry were test searched. The indexes are a keyword from title index without added keywords, a keyword from title index with added keywords, and a single access point per document alphabetic subject index. The three indexes were searched by 14 graduate chemistry students with 66 questions. Search results are characterized in terms of recall, precision, search time, and three other single figure measures. A measure of index performance based on recall, precision and search time was developed. There is no statistically significant difference between search results with the multiple access points per document keyword from title index and the single access point per document alphabetic subject index. Statistically significant differences in search results were found between the keyword from title index with added keywords and the keyword from title index without added keywords. The effect of the size of the delete word list and of elements of vocabulary control in keyword from title indexes was also studied.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1969
Accession Number
AD0683750

Entities

People

  • G. Jahoda
  • Mary Lou Stursa

Organizations

  • Florida State University

Tags

Communities of Interest

  • Biomedical
  • Space

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Analysis Of Variance
  • Chemical Synthesis
  • Chemistry
  • Computer Programs
  • Elements
  • Fatty Acids
  • Fungi
  • Information Retrieval
  • Ion Exchange
  • Library Science
  • Magnetic Resonance
  • Nuclear Magnetic Resonance
  • Precision
  • Spectra
  • Vocabulary

Fields of Study

  • Education
  • Engineering

Readers

  • Graph Algorithms and Convex Optimization.
  • Information Retrieval
  • Organizational Psychology.