SP500215
NIST Special Publication 500-215: The Second Text REtrieval Conference (TREC-2)
Appendix B: System Features
Appendix
National Institute of Standards and Technology
D. K. Harman
ĢiA. QUERY CONSThU[OCRerr]ON -- AUTOM[OCRerr]CALLY BUILT QUERIES (ADHOC)
[OCRerr]TEM NAME ] Doitmund [OCRerr] Cornell [OCRerr]_Berkeley T_Rutgers [OCRerr]_Siemens [OCRerr] UMASS [_VPI j
Fields Mi ___________ _____________ [4] ____________
Computer Thue to Build 0.7 seconds
[OCRerr]) 12h 20 min [1] 6/50 per query per query ___________ _____________ 12.1
[OCRerr]s Used to Construct
[1 Weighting
d on topic terms) Yes [2] Yes Yes Yes [5] ____________
Simple noun
C' extraction Yes Yes No phrases ___________
Tagging &
ctic Parsing noun phrase
_____________ No __________ ___________ bracketing ___________
Sense Disambiguation ______________ _____________ No No
(adjacent)
r Noun Identification capitalized
______________ No words
lizer No None
[OCRerr] Patterns None
stic Associations No None
ision of Queries
Previous Constructed
Structure Yes None None
Phrases from
:11 Structure controlled list
natic addition of Boolean
[OCRerr]ctors/Proximity Operators No Yes [6] ___________
Reweighting of
terms in a local
context [3]