SP500215 Appendix B: System Features Appendix National Institute of Standards and Technology D. K. Harman HC. QUERY CONSlItUCIION -- FEEDBACK (ADHOC) SYSThM NAME [OCRerr] ADS [OCRerr] UIc [ DAUIOUSIE [OCRerr] MEAD [OCRerr] UIF [ IDSR Feedback (adboc) N/A Not used No Initial Query Manual or ~utomatic [ype of person doing feedback (*) _____________ [OCRerr]verage Time for complete feedback - cpu time (cpu seconds) ______________ - clock time (minutes) _______________ [OCRerr]erage number of iterations - Average number of Documents Per Iteration [OCRerr]inimum number of Iterations [OCRerr]aximum number of Iterations Vilat determines end of Iteration Eeedback metbods uaed - Automatic Term Reweighting ______________ _______________ - Automatic Ouery E[OCRerr]pansion (+) _____________ ______________ - Other automatic methods - Manual Methods (a) all terms in relevant documents added (a) domain expert (1,) only top X terms added (c) user selected terms added (1)) system expert