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 `B. CONSTRUCTION OF INDICES, KNOWLEDGE BASES AND OThER DATA STRUCTURES -- STATISTICS ON DATA SThUC[OCRerr]IU Pre-indexing -- most of the helow don't apply. [OCRerr]d SMART's pre-processing to construct a term[OCRerr]ocument matrix for input to the SVD. This took ahout 9-10 hours. After this, SMART is used only to acce [OCRerr] do not store an inverted index, since we use the 151-space for matching and retrieval. 4 MB (0.55 GB WSJ text); 101 MB (0.3 GB SJMN text). stem creates a network. Files created are descrihed in B.5 (special routing structures) and B.6 (other data structures). Proper noun, complex nominal, and text structure index - 1,000 MB for WSJ and SJM. conceptual graph - 284 MB (WSJ). Proper noun, complex nominal, and text structure index - 24 hours (for both WSJ and SJM). conceptual graph -?