scholarly journals The H $\imath$ L ε X System for Semantic Information Extraction

Author(s):  
Marco Manna ◽  
Ermelinda Oro ◽  
Massimo Ruffolo ◽  
Mario Alviano ◽  
Nicola Leone
Author(s):  
Tércio de Morais Sampaio Silva ◽  
Frederico Luiz Gonçalves de Freitas ◽  
Rafael Cobra Teske ◽  
Guilherme Bittencourt

2014 ◽  
Vol 644-650 ◽  
pp. 1972-1975
Author(s):  
Rui Gao ◽  
Yan Zhang ◽  
Hua Deng ◽  
Jin Si ◽  
Xiao Meng

The perfection of an ontology knowledge base is essential to the research of ontology-based information extraction (IE). Information extraction in short documents with sparse vocabularies in the ontology will cause the problem of semantic deviation. That will affect the indexes of information extraction in short documents. In this paper, we propose a method of using lexical chain to perfect the ontology knowledge base automatically in order to cover the shortage of manual constructed ontology. We can solve the problem of semantic information deficiency caused by the sparse vocabulary in the ontology effectively through the use of this method. We proved the validity of our method through the series of experiments we conducted.


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