SP500207 Application of the Automatic Message Router to the TIPSTER Collection chapter R. Jones S. Leung D.L. Pape National Institute of Standards and Technology Donna K. Harman III Searching A Total Computer Time One message through 200 filters per second. This includes searching and ranking. B Method Software uses a fuzzy AND and Proximity measure to rank documents. C Factors included in ranking 1 Termfrequency 5 Position in document 7 Proximity of terms IV Machine The experiments were run on an HP 486/33 with 8 Mbytes under SCO UNIX. The CD ROM drive was accessed via NFS. V AMRSoftware AMR is commercial strength software developed by Computer Power Group. Its commercialisation software engineering phase took some three person years. 250