Paper: Link Type Based Pre-Cluster Pair Model for Coreference Resolution

ACL ID W11-1922
Title Link Type Based Pre-Cluster Pair Model for Coreference Resolution
Venue International Conference on Computational Natural Language Learning
Session shared task
Year 2011
Authors

This paper presents our participationin the CoNLL-2011 shared task, Modeling Unre- stricted Coreferencein OntoNotes. Corefer- enceresolution,as a difficultand challenging problemin NLP, has attracteda lot of atten- tionintheresearchcommunityforalongtime. Itsobjectiveistodeterminewhethertwomen- tions in a piece of text refer to the same en- tity. Inoursystem,weimplementmentionde- tectionand coreferenceresolutionseperately. For mentiondetection,a simpleclassification basedmethodcombinedwithseveraleffective featuresis developed.For coreferenceresolu- tion,we proposea linktypebasedpre-cluster pairmodel.Inthismodel,pre-clusteringofall thementionsin a singledocumentis firstper- formed.Thenfordifferentlinktypes,different classificationmodelsare trainedto determine whetertwo pre-clustersrefer to t...