SP500207 Appendix C: System Features appendix National Institute of Standards and Technology Donna K. Harman B. Which rneth()d[OCRerr] be[OCRerr]t deNcnbe your rn£ichine se[OCRerr]ching me[OCRerr]()d[OCRerr]? 1. vector [OCRerr]pace m(KIel cosine measure C. What factors [OCRerr]ue jucluded in y()UI railing? 1. tenn frequency 2. inver[OCRerr]e d([OCRerr]urnent frequency 9. d(}cuIl'ent length approximate document lengths were used to reduce memory re(1uirements IV. What machine did [OCRerr]()U conduct [OCRerr]e TREC experilnent on? Sun SPARC 2 How much RAM did it have? 128 Ml) What wa[OCRerr] the clock rate of flie CPU? 25 MIP V. Some system.[OCRerr] [OCRerr]`ire research prototypes and others [OCRerr]ue commerciLd. To help compare [OCRerr]ese systems: 1. How much "s()ftwLire en(jineenn(T" went into the development of your system? very little 2. Given appi-opriate resources, could y[OCRerr][OCRerr]ur system he made to run f[OCRerr][OCRerr]ster? By how much (estimate)? procesSIng to rank Items can lIe 3([OCRerr]-5([OCRerr]% faster; retrieval and decompression of text are currently Ilnilted by characteristics of tile disk and the UNIX operating system 3. What features is your system missing that it would benefit by if it had them? current transformation of topics into (1ueries is simple-minded the database is static 489