Overview of TAC-KBP2014 Entity Discovery and Linking Tasks

In this paper we give an overview of the Entity Discovery and Linking tasks at the Knowledge Base Population track at TAC 2014. In this year we introduced a new end-to-end English entity discovery and linking task which requires a system to take raw texts as input, automatically extract entity mentions, link them to a knowledge base, and cluster NIL mentions. In this paper we provide an overview of the task definition, annotation issues, successful methods and research challenges associated with this new task. This new task has attracted a lot of participants and has intrigued many interesting research problems and potential approaches. We believe it’s a promising task to be extended to a tri-lingual setting in KBP2015.