Incrementality, Half-life, and Threshold Optimization for Adaptive Document Filtering.

Abstract

This paper describes the participation by researchers from KUN (the Computing Science Department of the Katholieke Universiteit Nijmegen, The Netherlands) in the TREC-9 Filtering Track. As rst-time TREC participants, our group participated in all three subtasks | adaptive, batch, and routing | while concentrating mainly on adaptive tasks. We have made use of two different systems: