Skip navigation
Logo
User training | Reference and search service

Library catalog

Retrievo
EDS
b-on
More
resources
Content aggregators
Please use this identifier to cite or link to this item:

acessibilidade

http://hdl.handle.net/10071/6933
acessibilidade
Title: Revisiting Centrality-as-Relevance: Support Sets and Similarity as Geometric Proximity
Authors: Ribeiro, R.
de Matos, D. M.
Issue Date: 2011
Publisher: AI Access Foundation
Abstract: In automatic summarization, centrality-as-relevance means that the most important content of an information source, or a collection of information sources, corresponds to the most central passages, considering a representation where such notion makes sense (graph, spatial, etc.). We assess the main paradigms, and introduce a new centrality-based relevance model for automatic summarization that relies on the use of support sets to better estimate the relevant content. Geometric proximity is used to compute semantic relatedness. Centrality (relevance) is determined by considering the whole input source (and not only local information), and by taking into account the existence of minor topics or lateral subjects in the information sources to be summarized. The method consists in creating, for each passage of the input source, a support set consisting only of the most semantically related passages. Then, the determination of the most relevant content is achieved by selecting the passages that occur in the largest number of support sets. This model produces extractive summaries that are generic, and language- and domainindependent. Thorough automatic evaluation shows that the method achieves state-of-theart performance, both in written text, and automatically transcribed speech summarization, including when compared to considerably more complex approaches.
Description: “Prémio Científico ISCTE-IUL 2012”
Peer reviewed: Sim
URI: http://jair.org/media/3387/live-3387-5920-jair.pdf
https://ciencia.iscte-iul.pt/public/pub/id/6669
http://hdl.handle.net/10071/6933
ISSN: 1076-9757
Publisher version: The definitive version is available at: http://dx.doi.org/10.1613/jair.3387
Appears in Collections:CTI-RI - Artigos em revistas científicas internacionais com arbitragem científica

Files in This Item:
acessibilidade
File Description SizeFormat 
Riberio 2011 JAIR.pdf925.24 kBAdobe PDFView/Open    Request a copy


FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpace
Formato BibTex MendeleyEndnote Currículo DeGóis 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.