Collective Entity Linking and a Simple Slot Filling Method for TAC-KBP 2011

This paper summarize our work in TAC2010 knowledge base population track. We submit result for english entity linking and regular slot filling task. For entity linking we use a frequency based method as baseline and implement a collective method following (Han et al., 2011) for entity linking. For slot filling, we use wikipedia infobox as a source of supervision by mapping back to sentences to generate more training sentences. Evaluation result shows the strength and weakness of both our approaches.