CRANV2 Aslib Cranfield Research Project: Factors Determining the Performance of Indexing Systems: Volume 2 Supplementary tests and results 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. - 242 - QUESTION RELEVANT INDEX LANGUAGE NUMBER DOCUMENTS I. 1 1.5 1.8 II.l II.5 II. lO II.15 III. l III. 6 118 1324 4[OCRerr] 4 5 3 4= 4= 4= 4= 1378 4= 5 4 3= 4 4= 4= 4= 4= 1666 1= 1 3 1= 1= 2= 2= 1= 1= 1667 1= 2= 1= 3= 4= 1 1 1= 1= 1670 1= 2-- 1= 1-- 1= 2= 2= 1= 1= 170 1360 1 1 1 1 1 1 1 1 1 1605 2 2 2 2 2 2 2 2 2 25O 1311 1= 1= 1= 1= 1= 1= 1-- 1= 1= 1316 4= 4= 4-- 1= 1= 4= 1= 4= 4= 1335 6= 7= 7= 4= 4= 4= 5= 7= 8= 1415 1= 1= 1= 4= 1= l= i 1; 1= 1= 1416 1= 1-- 1= 7= 4= 1= [ : 1= 1= 1= 1798 4= 4= 4= 1= 4= 4= 5= 4= 4= 2364 6= 4= 4= .4= 4= 4; 5= 6 6= 2367 6-- 7= 7= 7= 4= 8 5= 7= 6= HIGHEST RANKED DOCUMENTS LOWEST RANKED DOCUMENTS Maintained Changed Maintained Changed INDEX LANGUAGE Position Position Position Position GROUP I SINGLE> TERMS 33 3 33 1 SIMPLE CONCEPTS 26 7 28 2 III CONTROLLED TERMS 30 6 29 4 J FIGURE 6.24T RANKED ORDER OUTPUT FOR RELEVANT DOCUMENTS OF QUESTIONS 118, 170 AND 250 BY NINE INDEX LANGUAGES FIGURE 6.25T EFFECT ON RANK OF HIGHEST AND LOWEST RANKED DOCUMENTS IN MOVING TO DIFFERENT INDEX LANGUAGE FOR 42 QUESTIONS