UBC at Slot Filling TAC-KBP 2011

This paper describes our submissions for the Slot Filling task of TAC-KBP 2011. The system takes as baseline the one we developed for the 2010 edition (Intxaurrondo et al., 2010), which is based on distant supervision. We did a straightforward implementation, trained using snippets of the document collection containing both entity and filler from the KB provided by the organizers. Our system does not use any other external knowledge source, with the exception of closed lists of words for some of the slots. We submitted three runs based on different datasets and inference options on the output of each classifiers. Ours run are below the median, but we obtained significant improvements from our last system.