Event Linking: Grounding Event Reference in a News Archive

Interpreting news requires identifying its constituent events. Events are complex linguistically and ontologically, so disambiguating their reference is challenging. We introduce event linking, which canonically labels an event reference with the article where it was first reported. This implicitly relaxes coreference to co-reporting, and will practically enable augmenting news archives with semantic hyperlinks. We annotate and analyse a corpus of 150 documents, extracting 501 links to a news archive with reasonable inter-annotator agreement.

[1]  Chih-Ping Wei,et al.  Discovering Event Evolution Graphs From News Corpora , 2009, IEEE Transactions on Systems, Man, and Cybernetics - Part A: Systems and Humans.

[2]  Ralph Grishman,et al.  Automatic Acquisition of Domain Knowledge for Information Extraction , 2000, COLING.

[3]  Silviu Cucerzan,et al.  Large-Scale Named Entity Disambiguation Based on Wikipedia Data , 2007, EMNLP.

[4]  Sampo Pyysalo,et al.  Overview of BioNLP’09 Shared Task on Event Extraction , 2009, BioNLP@HLT-NAACL.

[5]  Nathanael Chambers,et al.  Template-Based Information Extraction without the Templates , 2011, ACL.

[6]  Heng Ji,et al.  Knowledge Base Population: Successful Approaches and Challenges , 2011, ACL.

[7]  Xiang Li,et al.  Domain-Independent Novel Event Discovery and Semi-Automatic Event Annotation , 2010, PACLIC.

[8]  Razvan C. Bunescu,et al.  Using Encyclopedic Knowledge for Named entity Disambiguation , 2006, EACL.

[9]  James Allan,et al.  Topic detection and tracking: event-based information organization , 2002 .

[10]  Christopher R. Johnson,et al.  Background to Framenet , 2003 .

[11]  Heng Ji,et al.  Cross-document Event Extraction and Tracking: Task, Evaluation, Techniques and Challenges , 2009, RANLP.

[12]  James Pustejovsky,et al.  TimeML: Robust Specification of Event and Temporal Expressions in Text , 2003, New Directions in Question Answering.

[13]  Ralph Grishman,et al.  Message Understanding Conference- 6: A Brief History , 1996, COLING.

[14]  James Allan,et al.  Incident threading for news passages , 2009, CIKM.

[15]  Vasileios Hatzivassiloglou,et al.  Automatic Creation of Domain Templates , 2006, ACL.

[16]  Sanda M. Harabagiu,et al.  A Linguistic Resource for Discovering Event Structures and Resolving Event Coreference , 2008, LREC.