TAC KBP Reference Knowledge Base

Item Name: TAC KBP Reference Knowledge Base
Author(s): Heather Simpson, Joe Ellis, Robert Parker, Stephanie Strassel
LDC Catalog No.: LDC2014T16
ISBN: 1-58563-685-1
ISLRN: 043-495-621-872-3
DOI: https://doi.org/10.35111/4yac-wb16
Release Date: August 15, 2014
Member Year(s): 2014
DCMI Type(s): Text
Data Source(s): web collection
Project(s): TAC
Application(s): information extraction, knowledge base population, knowledge representation
Language(s): English
Language ID(s): eng
License(s): LDC User Agreement for Non-Members
Online Documentation: LDC2014T16 Documents
Licensing Instructions: Subscription & Standard Members, and Non-Members
Citation: Simpson, Heather, et al. TAC KBP Reference Knowledge Base LDC2014T16. Web Download. Philadelphia: Linguistic Data Consortium, 2014.
Related Works: View


TAC KBP Reference Knowledge Base was developed by the Linguistic Data Consortium (LDC) in support of the NIST-sponsored TAC-KBP evaluation series. It is a knowledge base built from English Wikipedia articles and their associated infoboxes and covers over 800,000 entities. LDC also released TAC KBP Spanish Cross-lingual Entity Linking - Comprehensive Training and Evaluation Data 2012-2014 (LDC2016T26.)

TAC (Text Analysis Conference) is a series of workshops organized by NIST (the National Institute of Standards and Technology) to encourage research in natural language processing and related applications by providing a large test collection, common evaluation procedures, and a forum for researchers to share their results. TAC's KBP track (Knowledge Base Population) encourages the development of systems that can match entities mentioned in natural texts with those appearing in a knowledge base and extract novel information about entities from a document collection and add it to a new or existing knowledge base.

Consult the LDC TAC-KBP project page for further information about LDC's resource development for the TAC-KBP program.


The source data (Wikipedia infoboxes and articles) was taken from an October 2008 snapshot of Wikipedia.

TAC KBP Reference Knowledge Base contains a set of entities, each with a canonical name and title for the Wikipedia page, an entity type, an automatically parsed version of the data from the infobox in the entity's Wikipedia article, and a stripped version of the text of the Wiki article. Each entity is assigned one of four types: PER (person), ORG (organization), GPE (geo-political entity) and UKN (unknown).

All data files are presented as UTF-8 encoded XML.


Please view the following sample.


None at this time.

Available Media

View Fees

Login for the applicable fee