SP500215 Appendix B: System Features Appendix National Institute of Standards and Technology D. K. Harman HL SEARCHING (CON'¶) ;YSTEM NAME J GE ] CLARIT ] 151 [OCRerr] HNC [OCRerr] NYU [OCRerr] SYRACUSE i: Rank is determined by the in Ranking __________ _____________ cos (query, doc) in 151-space _____________ __________ TF[OCRerr]AUG (0.5 Used in the term[OCRerr]ocument input I Frequency +0.5 * to the SVD, and also in the ________________ Yes TE/MAX IF) query weight Yes Yes Yes (Stage 2) Ye `se Document Used in the term[OCRerr]ocument input [OCRerr]ency to the SVD, and also in the _________________ Yes Yes query weight Yes Yes Yes [3] ___ Wi Yes, fr[OCRerr] r Term Weights relevance col] weights for Term fr[OCRerr] ________________ routing Yes [1] ______________________________ _______________ similarities Yes (Stage 1) wo The cosine between a query and ntic Closeness a document (in 151-space) _______________ represents their derived similarity ____________ Yes (Stage 2) on in Document ctic Clues Yes [4] ____ rility of Terms ilation Theoretic ~ts Yes, as a part of the cosine ment length Yes measure Yes [3] Ye[OCRerr] [OCRerr]eteness Yes [5] ____ m Frequency ___________ specificity ________ Sense ency Yes Distance Document Semantic relation- vector distance ship between Yes [2] to query vector concepts (Stage 2) ___