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Toward Network-based Keyword Extraction from Multitopic Web Documents (CROSBI ID 54969)

Prilog u knjizi | izvorni znanstveni rad

Šišović, Sabina ; Martinčić-Ipšić, Sanda ; Meštrović, Ana Toward Network-based Keyword Extraction from Multitopic Web Documents // Social sciences via network analysis and computation / Kanduč, Tadej (ur.). Frankfurt : Berlin : Bern : Bruxelles : New York (NY) : Oxford : Beč: Peter Lang, 2015. str. 39-52

Podaci o odgovornosti

Šišović, Sabina ; Martinčić-Ipšić, Sanda ; Meštrović, Ana

engleski

Toward Network-based Keyword Extraction from Multitopic Web Documents

In this paper we analyse the selectivity measure calculated from the complex network in the task of the automatic keyword extraction. Texts, collected from different web sources (portals, forums), are represented as directed and weighted co-occurrence complex networks of words. Words are nodes and links are established between two nodes if they are directly co-occurring within a sentence. We test different centrality measures for ranking nodes - keyword candidates. The promising results are achieved using the selectivity measure. Then we propose an approach which enables extracting word pairs according to the values of the in/out-selectivity and weight measures combined with filtering.

keyword extraction, complex networks, co-occurrence language networks, Croatian texts, selectivity

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Podaci o prilogu

39-52.

objavljeno

Podaci o knjizi

Social sciences via network analysis and computation

Kanduč, Tadej

Frankfurt : Berlin : Bern : Bruxelles : New York (NY) : Oxford : Beč: Peter Lang

2015.

978-3-631-66522-0

Povezanost rada

Računarstvo, Informacijske i komunikacijske znanosti