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 The system achieved a throughput of one document a second against 200 filters. This was especially pleasing since the experiments were run on a relatively modest platform, an 80486133 processor with 8 Mbytes of memory under SCO UNIX. As measured against the original objectives described above, three of the four have been achieved: AMR techniques have proved to be as accurate as any other in current use, The tests certinly proved that AMR is robust in running a very large collection, its performance was also quite adequate. The system was tuned during the first set of runs, and the experience has proved to be very valuable. The only major objective that remains to be achieved is to analyse AMR's sensitivity to widely differing filter types. Work is proceeding on this. References (1) Jones R.L., Enhanced Retrieval Mechanisms for Free Text Data Bases, Proceedings First Pan Pacific Computer Conference, (1985), pp 134-143 248