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A Hierarchical Distance-dependent Bayesian Model for Event Coreference Resolution


We present a novel hierarchical distance-dependent Bayesian model for event coreference resolution. While existing generative models for event coreference resolution are completely unsupervised, our model allows for the incorporation of pairwise distances between event mentions — information that is widely used in supervised coreference models to guide the generative clustering processing for better event clustering both within and across documents. We model the distances between event mentions using a feature-rich learnable distance function and encode them as Bayesian priors for nonparametric clustering. Experiments on the ECB+ corpus show that our model outperforms state-of-the-art methods for both within- and cross-document event coreference resolution.
PDF (presented at NAACL 2016)

Author Biography

Bishan Yang

I am a postdoctoral fellow at Carnegie Mellon University, working with Prof. Tom Mitchell. I recently completed my Ph.D. in the Department of Computer Science at Cornell University, advised by Prof. Claire Cardie.