IRS13
Scientific Report No. IRS-13 Information Storage and Retrieval
An Analysis of the Documentation Requests
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.
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T
RE[OCRerr]UEST CHARACTERISTICS OBJECTIVE SU3JECTIVE
1. Number of' documents judged relevant in test
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collection, or request generality.
2. Length of' request, using all words, subject
___________________ I ____
words only, or dictionary concept nun[OCRerr]bers.
3. Clarity of request demand and quality of ;
relevance decisions.
4. Request processing in the system used, such
as SMART. Factors such as quality of dic-
tionaries used and frequency of use in the [OCRerr] I
collection of' the request words.
5. Test environment variables, such as the use
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of' several personnel to prepare requests.
Sumrry of' request characteristics showing which are objective
and which subjective fr[OCRerr] an evaluation viewpoint.
Figure 3.