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 "K QUERY CONSTRUCTiON -- MANUAlLY CONSTRUCIED QUERIES [OCRerr]OUInNG) SYSThM NAME I c[OCRerr] [OCRerr] ERIM [OCRerr] TMC Jcriiu [OCRerr] UCLA [ SEC [OCRerr] [OCRerr]wi 11 lidly Constructed Queries ing) None (Proximity queries) (Stat Fields Used Title, description, narrative, concepts ige Time to Build (minutes) 250 -5[OCRerr] of Query Builder System expert Systei Used fbr Building Query (*) b, C ( docur a, b, C relev[OCRerr] Used to Build Query (+) a, alo word d [1] specia ds Umd to Build Query n Weighting Implicitly derived from Lean[OCRerr][OCRerr][OCRerr]Conriectors ________ query rankings Yes Yes Yes Cperato[OCRerr] Yes Yes ition of Terms roe of Terms r Counting operators (term frequency in documents) antecedent - reference recognition rd frequency list (1)) knowledge base browser U training topic (1') from all training documents (c) other lexical tools (d) machine analysis of training documents) (c) from documents with relevance (d) from other sources judgments