CRANV1P1 list of tables and figures list of tables and figures Cyril Cleverdon Jack Mills 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. LIST OF TABLES AND FIGURES Page 12 Figure 2 . 1 Table 3 . 1 'N. A. S. A search system analysis sheet 'Bib1iographical origin of base documents used in the test Country of residence of authors of base papers Comparison of authcrs' country of residence and country of publication Relevance assessments of documents as decided by authors in relation to their search questions Grades of relevance as decided by the authors 3 . 2 3 . 3 20 20 20 25 25 3.4 3 . 5 3 . 6 Relevance assessments giving a comparison of basic and supplementary questions Relevance assessments giving a comparison of basic and supplementary questions for all grades of relevance Breakdown of 312 documents retrieved by bibliographic coupling at strength of 7 or more 3.7 26 27 35 3 . 8 3.9 Examples of question/title matches for relevant documents Relevance grades of documents with specified question/title match Comparison of the cited and additional documents with specified question/title match 3 . 1 0 35 3.11 37 3.12 Figure 4 . 1 5 . 1 5 . 2 5 - 3 Comparison of recall performance of relevant cited and additional documents in relation to 25 questions Indexing sheet for Document 1590 Natural language single term data Patterns of term usage Sample sheet from schedules of single terms 39 51 59 60 72