IRS13
Scientific Report No. IRS-13 Information Storage and Retrieval
Document Length
chapter
E. M. Keen
Harvard University
Gerard Salton
Use, reproduction, or publication, in whole or in part, is permitted for any purpose of the United States Government.
V-15
C0LLECTI0[OCRerr] DICTIONARY EVALUATION ABSTRACT TITLE
MEASURE
Stem Normed. Recall .8954 .8145
IRE-3 Normed. Precision .6746 .5547
3[OCRerr] Thesaurus-2 Normed. Recall .9191 .8436
Requests (Harris 2) Normede Precision .7072 .5945
Thesaurus-3 Normed. Recall .9268 .8430
(Harris 3) Normed. Precision .7382 .6068
CRAN-l Stem Normed. Recall . 864[OCRerr] .8112
[OCRerr]2 Normede Precision .6704 .6185
Requests Thesaurus-3 Normed. Recall .8833 .8374
(Harris) Normed. Precision .6955 .6420
Suffix `5' Normed. Recall .7253 .6435
Normed. Precision .4997 .4209
Stem Normed. Recall .7601 .6722
ADI Normed. Precision .5326 .4537
35 Thesaurus-i Normed. Recall .8016 .7324
Requests (Harris) Normed. Precision .6069 .5462
Thesaurus-2 Normed. Recall .7548 .6877
(Hastie) Normed. Precision .5190 .4649
Performance Results comparing abstracts with titles for nine dictionaries
on three collections, using normalized recall and precision.
Figure 5.