University of Santiago de Compostela at CLEF-IP09

In this paper we describe our participation in CLEF-IP 2009 (prior-art search task). This was the first year of the task and we focused on how to build effectively a prior art query from a patent. Basically, we implemented simple strategies to extract terms from some textual fields of the patent documents and gave preference to title terms. We ran experiments with standard BM25 configurations and we paid little attention to language-dependent issues.