Title:	Information extraction from the web by matching visual presentation patterns
Authors:	Minárik, Matej Burget, Radek
Citation:	STEINBERGER, Josef ed.; ZÍMA, Martin ed.; FIALA, Dalibor ed.; DOSTAL, Martin ed.; NYKL, Michal ed. Data a znalosti 2017: sborník konference, Plzeň, Hotel Angelo 5. - 6. října 2017. 1. vyd. Plzeň: Západočeská univerzita v Plzni, 2017, s. 227-231. ISBN 978-80-261-0720-0.
Issue Date:	2017
Publisher:	Západočeská univerzita v Plzni
Document type:	konferenční příspěvek conferenceObject
URI:	https://www.zcu.cz/export/sites/zcu/pracoviste/vyd/online/DataAZnalosti2017.pdf http://hdl.handle.net/11025/26368
ISBN:	978-80-261-0720-0
Keywords:	integrace webových dat;extrakce informací;strukturovaná extrakce záznamů;segmentace stránek;klasifikace obsahu;mapování ontologií
Keywords in different language:	web data integration;information extraction;structured record extraction;page segmentation;content classification;ontology mapping
Abstract in different language:	There is a large amount of data available on the Web. Data are often represented as text, enriched with tables, lists, images or other visual structures. These data are usually coded in HTML without any additional semantics, which makes them nigh impossible to automatically process and extract. There are ap-proaches based on top-down document segmentation according to visual infor-mation and layout. We present a bottom-up approach which starts with the smallest consistent elements and matches the visual relationships among these elements to a pre-defined ontological structure of extracted records. This meth-od considers not only the visual attributes of a particular segment, but also its position amongst other segments.
Rights:	© Západočeská univerzita v Plzni
Appears in Collections:	Data a znalosti 2017 Data a znalosti 2017

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