ISR11 Operating Instructions for the SMART Text Processing and Document Retrieval System chapter M. E. Lesk Harvard University Gerard Salton Use, reproduction, or publication, in whole or in part, is permitted for any purpose of the United States Government. 11-23 Normal Specification Value Meaning Value EXPAID DOCS AMa HIER [OCRerr]XPAND SHRINK In concept-concept or hierarchical expansions, expand the requests only, or the doc[OCRerr][OCRerr]ents only, or expand everything Perform a hierarchical alteration of concept vectors, either expanding them, or "shrinkingt1 them (replacing the original concepts instead of augmenting them) AM[OCRerr] off PCOCOR Print the concept-concept cor off- relations LOGVEC Do not c[OCRerr][OCRerr]te any weights; off non-zero weights are taken as 1 x is the weight of the concepts derived from word stems x is the weight attached to concepts derived from statis- tical phrases (note: all weights are relative; Usually [OCRerr] is left at 1.0, and other weights varied) x is the weight attached to concepts derived from syntactic phrases x is the weight attached to concepts derived from concept- concept expansions x is the weight attached to concepts derived from hierar- chical expansion by parents x is the weight attached to concepts derived from hierar- chical expansion by brothers STE[OCRerr]WT x STATWT x SYNWT x OOCOWT x ROOTWT x BRANWT x 1.0 0.0 0.0 0.0 0.0 0.0 Table 2 (continued)