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| Main Authors: | , |
|---|---|
| Format: | Recurso educativo Open Access |
| Language: | en |
| Published: |
1965
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| Subjects: | |
| Online Access: | https://eric.ed.gov/?id=ED018235 |
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Table of Contents:
- A MULTIPLE TESTING OF THE ABC METHOD AND THE DEVELOPMENT OF A SECOND GENERATION MODEL. PART I, PRELIMINARY DISCUSSIONS OF METHODOLOGY. SUPPLEMENT, COMPUTER PROGRAMS OF THE HDL INFORMATION SYSTEMS. ALTMANN, BERTHOLD BROWN, WILLIAM G. Automation Catalogs Computer Programs Costs Dictionaries Evaluation Indexing Information Centers Information Processing Information Retrieval Library Technical Processes Performance Criteria Permuted Indexes Scientific Personnel Search Strategies THE FIRST-GENERATION APPROACH BY CONCEPT (ABC) STORAGE AND RETRIEVAL METHOD, A METHOD WHICH UTILIZES AS A SUBJECT APPROACH APPROPRIATE STANDARDIZED ENGLISH-LANGUAGE STATEMENTS PROCESSED AND PRINTED IN A PERMUTED INDEX FORMAT, UNDERWENT A PERFORMANCE TEST, THE PRIMARY OBJECTIVE OF WHICH WAS TO SPOT DEFICIENCIES AND TO DEVELOP A SECOND-GENERATION ABC MODEL. THREE METHODS, TWO VARIATIONS OF THE FIRST-GENERATION ABC METHOD TOGETHER WITH A KWIC-TITLE LIST WERE TESTED. A CONTROL GROUP WAS ESTABLISHED TO DISCERN THE BIAS WHICH MIGHT BE INTRODUCED BY THE SEQUENCE OF THE THREE TEST RUNS AND BY USE OF THE TEST-OPERATOR'S OWN QUESTIONS, FORMULATED EARLIER IN THE PROJECT. FORTY SCIENTISTS AND ENGINEERS (DIVIDED INTO TWO GROUPS), SIX RESEARCH ANALYSTS, AND SIX LIBRARIANS SEARCHED THE 136 QUESTIONS BY ALL THREE METHODS. CRITERIA WERE ESTABLISHED FOR THE DETERMINATION OF RELEVANCE AND PROCEDURES INTRODUCED FOR THE IDENTIFICATION OF RELEVANT DOCUMENTS MISSED DURING THE TEST. THE IMPROVED MODEL (SECOND-GENERATION) IS CHARACTERIZED BY DESCRIPTORS OF UNLIMITED LENGTH, THE LOGICAL ARRANGEMENT OF DOCUMENTS UNDER IMPORTANT KEYWORDS, AND A DECREASE IN THE NUMBER OF VERBALIZED CONCEPTS OR STATEMENTS. A COST ACCOUNT OF THE TEST AND A DESCRIPTION OF THE COMPUTER PROGRAMS FOR THE ENTIRE INFORMATION SYSTEM FOR THE AUTOMATION OF THE LIBRARY, SEVERAL OF WHICH FACILITATED THE PREPARATION AND REPRODUCTION OF THE VARIOUS CATALOGS, DICTIONARIES, AND CONTROL TOOLS, ARE APPENDED. A PRELIMINARY STATISTICAL EVALUATION OF THE TEST RESULTS IS REPORTED IN LI 000 317 AND A MATHEMATICAL MODEL OF THE RETRIEVAL PROCESS IS DISCUSSED IN LI 000 234. THIS DOCUMENT IS AVAILABLE AS AD-617-118 FROM THE CLEARINGHOUSE FOR FEDERAL SCIENTIFIC AND TECHNICAL INFORMATION, SPRINGFIELD, VIRGINIA 22151, $3.00 FOR HARD COPY, $0.65 FOR MICROFICHE, 96 PAGES. (AUTHOR/CM)