Index of papers in Proc. ACL 2011 that mention
  • knowledge base
Krishnamurthy, Jayant and Mitchell, Tom
Abstract
When ConceptResolver is run on N ELL’s knowledge base , 87% of the word senses it creates correspond to real-world concepts, and 85% of noun phrases that it suggests refer to the same concept are indeed synonyms.
Background: Never-Ending Language Learner
1More information about NELL, including browsable and downloadable versions of its knowledge base , is available from http://rtw.ml.cmu.edu.
Background: Never-Ending Language Learner
NELL’s knowledge base contains both definitions for predicates and extracted instances of each predicate.
Background: Never-Ending Language Learner
At present, NELL’s knowledge base defines approximately 500 predicates and contains over half a million extracted instances of these predicates with an accuracy of approximately 0.85.
ConceptResolver
The final output of sense induction is a sense-disambiguated knowledge base , where each noun phrase has been converted into one or more word senses, and relations hold between pairs of senses.
Evaluation
For both experiments, we used a knowledge base created by running 140 iterations of NELL.
Introduction
Many information extraction systems construct knowledge bases by extracting structured assertions from free text (e.g., NELL (Carlson et al., 2010), TextRunner (Banko et al., 2007)).
Introduction
It first performs word sense induction, using the extracted category instances to create one or more unambiguous word senses for each noun phrase in the knowledge base .
Introduction
We evaluate ConceptResolver using a subset of NELL’s knowledge base , presenting separate results for the concepts of each semantic type.
knowledge base is mentioned in 15 sentences in this paper.
Topics mentioned in this paper:
Pantel, Patrick and Fuxman, Ariel
Association Model
Clicked results in a vertical search engine are edges between queries and entities e in the vertical’s knowledge base .
Association Model
Throughout our models, we make the simplifying assumption that the knowledge base E is complete.
Introduction
In this paper, we focus instead on associating surface contexts with entities that refer to a particular entry in a knowledge base such as Freebase, IMDB, Amazon’s product catalog, or The Library of Congress.
knowledge base is mentioned in 3 sentences in this paper.
Topics mentioned in this paper: