Novel Results and Some Answers - The University of Iowa TREC 11 Results.
David A. Eichmann, Padmini Srinivasan · 2002
The University of Iowa participated in the novelty, adaptive filtering and question answering tracks of TREC-11. The filtering system used was an extension of the one used in TREC-7 [1] and TREC-8 [2]. Question answering was derived from the TREC-10 system. The novelty system was new… 1 – Novelty With novelty being a new track, we had little prior experience to build upon. Hence we decided to begin our development experiments with a simple similarity match between the topic definition and the candidate sentence. For the available training topics, this proved to be remarkably responsive to tuning between precision-focused runs and recall-focused runs for novelty as well as the more predictable relevance decision. Figure 1 shows relevance tuning runs and Figure 2 new tuning runs. We used these runs as a baseline for our subsequent experiments in both threshold tuning precision 1