Evaluating a Focus-Based Approach to Anaphora Resolution
  We present an approach to anaphora resolution based on a focusing algorithm, and implemented within an existing MUC (Message Understanding Conference) Information Extraction system, allowing quantitative evaluation against a substantial corpus of annotated real-world texts. Extensions to the basic focusing mechanism can be easily tested, resulting in refinements to the mechanism and resolution rules. Results are compared with the results of a simpler heuristic-based approach. 
Saliha Azzam, Kevin Humphreys and Robert Gaizauskas (University of   Sheffield)