CRANV2 Conclusions chapter Cyril Cleverdon Michael Keen Cranfield An investigation supported by a grant to Aslib by the National Science Foundation. Use, reproduction, or publication, in whole or in part, is permitted for any purpose of the United States Government. - 253 - ORDER NORMALISED RECALL 65.82 65.23 65.00 64.47 64.41 64.05 63.05 63.05 62.88 61.76 61.76 61.17 60.94 60.82 60. II 59.76 59.70 59.58 59.17 58.94 57.41 57.11 55.88 55.76 55.41 55.05 53.88 53.52 52.47 52.05 51.82 47.41 44.64 FIGURE 8.1T [OCRerr]DEXING LANGUAGE I-3 I-2 I-i I-6 I-8 I-7 I-5 II-11 II-lO Ill -1 III-2 1-9 IV -3 IV -4 Ill -3 IV -2 IH~ III-5 II1-6 IV-1 II-15 II --9 II-13 II-8 II-12 II-5 II-7 II-3 II-14 II-4 II~ H-2 II-1 Single terms. Single terms. Single terms. Single terms. Single terms. Single terms. Single terms, Word forms Synonyms Natural Language Synonyms, word forms, quasi -synonyms Hierarchy second stage Hierarchy first stage Synonyms. Quasi -synonyms Simple concepts. Hierarchical and alphabetical selection Simple concepts. Alphabetical second stage selection Controlled terms. Basic terms Controlled terms. Narrowe*[OCRerr]terms Single terms. Hierarchy third stage Abstracts. Natural language Abstracts. Word forms Controlled terms. Broader terms Titles. Word forms Controlled terms. Related terms Controlled terms. Narrower and broader terms Controlled terms Titles. Natural Simple concepts. Simple concepts. Simple concepts. Simple concepts. Simple concepts. Simple concepts. Simple concepts. Simple concepts. Simple concepts. Simple concepts. Simple concepts. Simple concepts. Simple concepts. . Narrower, broader and related terms language Complete combination Alphabetical first stage selection Complete species and superordinate Hierarchical selection Complete species Selected species and superordinate Selected coordinate and collateral Selected species Complete collateral Superordinate Selected coordinate Synonyms Natural language ORDER OF EFFECTIVENESS BASED ON NORMALISED RECALL FOR 33 CRANFIELD INDEX LANGUAGES (AVERAGE OF NUMBERS)