Naslov
Toward Network-based Keyword Extraction from Multitopic Web Documents

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

Vrsta, podvrsta i kategorija rada
Poglavlja u knjigama, znanstveni

Knjiga
Social sciences via network analysis and computation

Urednik/ci
Kanduč, Tadej

Izdavač
Peter Lang

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

Godina
2015

Raspon stranica
39-52

ISBN
978-3-631-66522-0

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

Sažetak
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.

Izvorni jezik
Engleski

Znanstvena područja
Računarstvo, Informacijske i komunikacijske znanosti

POVEZANOST RADA