Toward Network-based Keyword Extraction from Multitopic Web Documents (CROSBI ID 54969)
Prilog u knjizi | izvorni znanstveni rad
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