SP500215 TREC-II Routing Experiments with the TRW/Paracel Fast Data Finder chapter M. Mettler National Institute of Standards and Technology D. K. Harman TABLE I - Sample Proximity Query Query Template for Topic 75, Automation 1* Concept 1: automation *1 define x[OCRerr]auto `automat (elionledlesling)' end 1* Concept 2: change in economics *1 define x_up_dn `[increasidecreas) I `rais[elesiedling) I `ris[elesiing] I `drop[Islped]' I `dip[Islping) I `expan[dldsldedlsion[Isl)' [elesledling) I `lower[Isledling)' I `fall[sjing) I `hike[jsJd) I `cut[Islting)' I `reduc[elesledl tion[Is)]' end define x_econ `cost[Is]' Ipayroll*I I{ 3 words -> `work' and `force') end 1* * Query template used for Topic 75 *1 (proxi) -> @X_auto and (prox2) -> @x[OCRerr]up_dn and @X_econ TABLE II - Sample Statistical Query Term weighting table for Topic 93, NRA Political Backing Doc sample size is 150 Term DocCount DbCount Weight P51Weight nra 87.0 130.0 0.66923077 62 national_rifle_a 145.0 255.0 0.56862745 53 assault[OCRerr]weapons 51.0 161.0 0.31677019 30 semiautomatic 68.0 332.0 0.20481928 19 gun_control 73.0 387.0 0.18863049 18 handguns 51.0 319.0 0.15987461 15 rifle 146.0 1336.0 0.10928144 10 handgun 52.0 550.0 0.09454545 9 firearms 63.0 811.0 0.07768187 7 rifles 46.0 1318.0 0.03490137 3 gun 126.0 3866.0 0.03259183 3 guns 96.0 3020.0 0.03178808 3 law_enforcement 51.0 2509.0 0.02032682 2 assault 67.0 3491.0 0.01919221 2 ban 91.0 5510.0 0.01651543 2 enforcement 54.0 4825.0 0.01119171 1 weapons 99.0 8993.0 0.01100856 1 association 148.0 16780.0 0.00882002 1 legislation 64.0 7984.0 0.00801603 1 laws 45.0 7662.0 0.00587314 1 205