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
lIE. QUERY CONSTRU[OCRerr]ON -- MANUAILY CONSTRUCTED QUERIES (ROUTING)
r combined queries, 125 minutes (65 minutes for the five individual queries, 60 minutes for translating them into INQUERY format, including incorporatio[OCRerr]
ecifically, the performance of query formulations on the training set was used to determine their weights in the scheme used for routing.
the sense that each individual query formulation within the combined query was weighted, and as implemented by INQUERY.
)m the personal knowledge of those forming the searches.
e process of selecting synsets was iterated based on the effectiveness of the previous selection. Some topics probably took more than 15 minutes total over tI
rations. Creation of query from text averaged 0.7 seconds (35 seconds for 50 queries, less competition on the machine than in the adhoc case!).
mbination of automatic query formation from Part lID and a manually modified query using the method from Part uB.
ain, three query sets were constructed as per adhoc manual.
title, description, concepts
ig vector, pnorm: Narrative
ig and short vector: Defmitions
main knowledge of computer system expert, limited use to compensate for omissions in topic descriptions.