Title
SEL: A unified algorithm for salient entity linking.
Abstract
The entity linking task consists in automatically identifying and linking the entities mentioned in a text to their uniform resource identifiers in a given knowledge base. This task is very challenging due to its natural language ambiguity. However, not all the entities mentioned in the document have the same utility in understanding the topics being discussed. Thus, the related problem of identifying the most relevant entities present in the document, also known as salient entities (SE), is attracting increasing interest. In this paper, we propose salient entity linking, a novel supervised 2-step algorithm comprehensively addressing both entity linking and saliency detection. The first step is aimed at identifying a set of candidate entities that are likely to be mentioned in the document. The second step, besides detecting linked entities, also scores them according to their saliency. Experiments conducted on 2 different data sets show that the proposed algorithm outperforms state-of-the-art competitors and is able to detect SE with high accuracy. Furthermore, we used salient entity linking for extractive text summarization. We found that entity saliency can be incorporated into text summarizers to extract salient sentences from text. The resulting summarizers outperform well-known summarization systems, proving the importance of using the SE information.
Year
DOI
Venue
2018
10.1111/coin.12147
COMPUTATIONAL INTELLIGENCE
Keywords
Field
DocType
entity linking,machine learning,salient entities,text summarization
Identifier,Computer science,Salience (neuroscience),Weak entity,Natural language processing,Artificial intelligence,Knowledge base,Entity linking,Automatic summarization,Information retrieval,Algorithm,Natural language,Salient
Journal
Volume
Issue
ISSN
34.0
1.0
0824-7935
Citations 
PageRank 
References 
1
0.34
14
Authors
6
Name
Order
Citations
PageRank
Salvatore Trani1858.68
Claudio Lucchese2110473.76
Raffaele Perego31471108.91
David E. Losada432640.63
Diego Ceccarelli51239.91
Salvatore Orlando61595202.29