IRE Index index Butterworth & Company Karen Sparck Jones All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, including photocopying and recording, without the written permission of the copyright holder, application for which should be addressed to the Publishers. Such written permission must also be obtained before any part of this publication is stored in a retrieval system of any nature. 351 Index t)ue[OCRerr]tI[OCRerr])nu.'iIre[OCRerr]. re[OCRerr]pon[OCRerr]e rite. 114 t)ue[OCRerr]t t[OCRerr]ins. uter.[OCRerr]'t i[OCRerr]iu[OCRerr]. 49 relitton with text. 411 R,'iud[OCRerr])m number simul,'iti[OCRerr]in technique. 191 R,'iudiim retrievil 41 Rinked output. 234 Rinked retrieval, 39 Rinkings, ev[OCRerr]luation ot'. 311 residuil, 40 Recill, 32.36, 66. III, 113, 1211, 143, 191), 226, 236 ,ih[OCRerr]i)lute, 69 ,injlv[OCRerr]i[OCRerr] O{ hi ilures, 1111 veriging, 116 edleulation ol', 66, 69.222 pr[OCRerr]iblems, 67 coverage and, 114 ([OCRerr]r,'infield 1,2611 (`r inlicid [OCRerr] [OCRerr]73. 276, 2711, 2111). 2112 (ichnition I 9 3 [OCRerr]. 226 c[OCRerr] In itirin [OCRerr]4l esh iu[OCRerr]ti\ v [OCRerr]34 cx1[OCRerr]&[OCRerr]t[OCRerr]d [OCRerr]4 \ p[OCRerr] t imvnt il en\ i run ment, 1 20 [OCRerr]NiARi. 315 [OCRerr][OCRerr]t) [OCRerr] unitS. 4(1 iic'i[OCRerr]uremeiit [OCRerr]il. 32 {el,itiiin to precision. 67, 224. 263 el.iti\ C [OCRerr]proporttiin.il ), 69, II?. 223. 234 re[OCRerr]ults, 242 vc[OCRerr]ult[OCRerr]. 242 ii[OCRerr]itivitV [OCRerr])f. I 55 u[OCRerr][OCRerr]i [OCRerr] rvqutr[OCRerr]ment[OCRerr], 112 kc[OCRerr].iIl preci\Ion gr.'iphs. 117, 191). 24(1 c,il[OCRerr]ul iting vur\ Cs. 1111 k[OCRerr]e,il1 r itio III 117 in vs ilu ition 121 l..mit itioti[OCRerr] II Reerv[OCRerr]sion levhniques. 95 Re1.iti[OCRerr]inship[OCRerr] tvvhniques. 911 iiin[OCRerr]h I sploring. 97 1t[OCRerr]les invv 4 I 7, [OCRerr]6 4,5, 47. 59, 21 7, 4. 222.257 I [OCRerr] lts[OCRerr]P1 ( 91) it [OCRerr]M \R I [OCRerr]l9, 2:.. [OCRerr] ilv[OCRerr] it 67 ii i[OCRerr]ini I I 97 [OCRerr],ri irs ()7 `tiv[OCRerr] Pt il 6 OS ( i'ili( Id I I inlield [OCRerr] I[OCRerr] Ilnition 4 ........`[OCRerr] in l Is `I [OCRerr]"i i[OCRerr]5 Relevance ((`ont.) logical, 47 meaning aboutness, 299 meaning pertinent, 299 ohjective and subjective concept, 32 probability of, 169, 1117 ranked, 67 recognition of, 1111 relation to usefulness, 36 situational, 47 subject competence and, 75 three-value, 67 understanding of, 169 weights, 67, 243 Relevance feedback, 29, 157, 165, 170, [OCRerr]31 237, 241, 242, 321 effectiveness of, 40 Reliability of tests, 153 Requester see User Residual ranking, 40 Response rates, 114 Response time, 111, 114 evaluation, 117 Results, presentation of, 100 Retrieval, archetypal test see Archetypal retrieval test definition, 9 fundamental issues, 44 limits to, 41) random, 41 ranked, 39 retrospective, 10 set, 39 theory and experiment in, 201 Retrieval effectiveness see Effectiveness Retrospective retrieval, 10 Rules, 143 Sampling, 13 adequacy, 25 size, 25 statistics, 29 Satisfaction, 201 concept of, 411,55 definition of, 129 level of, 11)6 Scope, definition of, 115 Sf)l, 99 SDI profiles, search strategy variations in see u[i'o INSPEC experiment, 2115[OCRerr]315 Searchers, behaviour of, 237 communication with indexers, 123 individual performance, 151 interaction with user, 66 recruitment of, 146 Searches, control of strategy, 125 diagnosis techniques, 152 logic tests 7311