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Pregled bibliografske jedinice broj: 915717

Poglavlje/Rad u knjizi

Autori: Beliga, Slobodan; Meštrović, Ana; Martinčić-Ipšić, Sanda
Naslov: Keyword Extraction Based on Selectivity and Generalized Selectivity
Knjiga: Innovations, Developments, and Applications of Semantic Web and Information Systems
Urednik/ci: Lytras, Miltiadis D. ; Aljohani, Naif ; Damiani, Ernesto ; Chui, Kwok Tai
Izdavač: IGI Global
Grad: Hershey, PA, USA
Godina: 2018
Raspon stranica:: 170-204
ISBN: 9781522550426
Ključne riječi: Keyword Extraction ; Keyword Expansion ; Keyword Ranking ; Complex Network ; Graph-Based Keyword Extraction ; Centrality Measures ; Selectivity ; Generalized Selectivity ; SBKE Method
Sažetak:
This chapter presents a novel Selectivity-Based Keyword Extraction (SBKE) method, which extracts keywords from the source text represented as a network. The node selectivity value is calculated from a weighted network as the average weight distributed on the links of a single node and is used in the procedure of keyword candidate ranking and extraction. The selectivity slightly outperforms an extraction based on the standard centrality measures. Therefore, the selectivity and its modification – generalized selectivity as the node centrality measures are included in the SBKE method. Selectivity-based extraction does not require linguistic knowledge as it is derived purely from statistical and structural information of the network and it can be easily ported to new languages and used in a multilingual scenario. The true potential of the proposed SBKE method is in its generality, portability and low computation costs, which positions it as a strong candidate for preparing collections which lack human annotations for keyword extraction.
Izvorni jezik: ENG
Kategorija: Znanstveni
Znanstvena područja:
Računarstvo,Informacijske i komunikacijske znanosti
URL Internet adrese: https://www.igi-global.com/chapter/keyword-extraction-based-on-selectivity-and-generalized-selectivity/196439
https://www.igi-global.com/viewtitlesample.aspx?id=196439&ptid=186195&t=Keyword%20Extraction%20Based%20on%20Selectivity%20and%20Generalized%20Selectivity
Upisao u CROSBI: Slobodan Beliga (sbeliga@inf.uniri.hr), 2. Sij. 2018. u 18:35 sati



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