SP500215
NIST Special Publication 500-215: The Second Text REtrieval Conference (TREC-2)
Knowledge-Based Searching with TOPIC
chapter
J. Lehman
C. Reid
National Institute of Standards and Technology
D. K. Harman
Figure 4
Example of Poorly Specified Search
Routing Query #66
1.00 Required Evidence
Topic
and
.05 Secondary-
Evidence Accrue
½
ifi
Score = 10 (lowest =0)
`1Natural Language"
Secondary
Evidence
Figure 5
Poorly Specified Search - Cosmetic Repair
Routing Query #66
"Natural Language"
1.00 Required Evidence
Topic
and
.50 Secondary-
Evidence Accrue
Score =44 (median =44)
½
ifi
Secondary
Evidence
"Natural Language"
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