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 m. CONSThUCTION OF INDICES, KNOWLEDGE BASES, AND O'IHER DATA STRUCTURES -- STATISTICS ON DATA STRUCTURI NAME ]__DORTMUND [ CORNELL [OCRerr] BERKELEY [OCRerr] RUTGERS [8]] SIEMENS_[OCRerr] UMASS [___ r'dex Yes Yes Yes Yes Yes N/A - 460 (D3) 390 (D3) 667 (1)1/1)2) 882 (1)1/1)2) orage (MB) 863 (1)1/1)2) [2] 863 (1)1/1)2) [4] 1GB [5] 337 (1)3) 415 )D3) [OCRerr]mputer Build Time 4.8 (D3) 4.8 (D3) 8 (1)1/1)2) 9 (1)1/1)2) [2] 9 (1)1/1)2) [2] 6-20 [6] _________________ 2 (1)3) [9] 40 tic Process Yes Yes Yes Yes Yes Manual Hours `sitions Stored No No Yes [7] ________________ No Yes [OCRerr]rms Only No [3] No [3] Yes Yes Yes None Not used N/A orage (MB) ___________________ __________________ __________________ _____________ _______________ omputer Build Time Lion of Method `t[OCRerr]C Process of Manual Hours Suf[OCRerr]Ix arrays, Signature None Not used N/A orage (MB) ________________ ________________ ____________ _______________ ___________ _____________ omputer Build Time tion of Method Ltic Process of Manual Hours