SP500207 Appendix C: System Features appendix National Institute of Standards and Technology Donna K. Harman 1. tenn frequency 2. inverse d([OCRerr]urnent frequency 7. proxilnity of terins (for phra.%'e'%*.) 8. infoi[OCRerr]ation theoretic weiglit.[OCRerr] 9. document lengili IV. What machine did you conduct tlie TREC experilnent on'? Sun SPARC 2 How much RAM did it have? 64 MB VVhat was the clock rate of die CPU? 4([OCRerr] MHz V. Some systems £`tre rese£'[OCRerr]ch prototypes and others £`irC coin'nerci£'[OCRerr]. To help coinp[OCRerr]'ire diese systems: 1. `low much "soflw[OCRerr]ire en[OCRerr]ineering" went into the development of your system.? AI)oUt 3 person-years for the SMART system itself 2 person-weeks for the Fulir weighing code 2. Given appropriate resources, could your system be made to run faster? By how much (esti'n£'tte)? Of course! Can speed up phrase indexing l)y 4[OCRerr][OCRerr]% l)y algorithm change (speed up has l)een done for single terms, l)ut not for phrases) 3. What features is your system missing that it would benefit by if it had them? 460