Semantic Information Access

2006 ◽  
pp. 139-169 ◽  
Author(s):  
Kalina Bontcheva ◽  
John Davies ◽  
Alistair Duke ◽  
Tim Glover ◽  
Nick Kings ◽  
...  
2012 ◽  
Author(s):  
Arifah Che Alhadi ◽  
Shahrul Azman Noah ◽  
Lailatul Qadri Zakaria

Visi web semantik membolehkan capaian maklumat dilakukan secara semantik, yang mana model semantik kueri dipadankan dengan maklumat semantik dokumen web. Namun demikian kebanyakan dokumen web adalah tidak berstruktur dan tidak mempunyai maklumat semantik dokumen menyebabkan kesukaran proses pengkuerian. Oleh itu, capaian dan pengekstrakan maklumat semantik daripada dokumen web adalah amat penting dalam merealisasikan visi web semantik dan meningkatkan kualiti capaian maklumat. Kertas kerja ini membincangkan pengaplikasian pendekatan ontologi spesifik dan pemprosesan bahasa tabii dalam menyokong capaian dan pengekstrakan maklumat semantik dokumen web. Dengan menggunakan kedua-dua teknik ini, setiap kali capaian maklumat dilakukan, sistem akan menjana model integrasi semantik dokumen iaitu dokumen yang dicapai oleh enjin gelintar komersial yang ditetapkan. Model intergrasi semantik dokumen ini membolehkan pengguna mencapai dan melayarinya secara semantik. Hasil pengujian capaian dan padanan konsep yang dijalankan memperlihatkan kedua-dua teknik yang digunakan mampu mengenal pasti dan mengekstrak maklumat semantik daripada kueri dan kandungan dokumen web. Kata kunci: Capaian dokumen semantik, web semantik, ontologi, analisis bahasa tabii, perwakilan semantik dokumen, perwakilan semantik kueri The Semantic Web vision offers the potential to express queries in a more semantically way whereby semantic query model will be matched with semantic information of the document. However, the unstructured natures of existing web documents, which lack of semantic prove to be a difficult task for such a query. Therefore, semantic information retrieval and semantic information extraction of web documents content are important to realize semantic web vision and enhance the quality of information access. To support this, the semantic information content of web documents need to be specified in order to make the tangled information more structured and accessible. In this paper, we propose an approach meant to semantically query web documents using natural language analysis technique and a domain specific ontology. Using both techniques, the tool gradually constructs the semantic document integration model of the documents retrieved from an existing search engine for each search session. The semantic model can then be semantically refined and browsed by the user. The result of concept matching and accessing shows that both techniques that have been used could identify and extract semantic information from query and web document content. Key words: Semantic document retrieval, semantic web, ontology, natural language analysis, semantic document representation, semantic query representation


Author(s):  
Flavio Xavier Ferreira ◽  
Pedro Rangel Henriques ◽  
Alda Lopes Gancarski

This chapter presents an ongoing work in the context of the Portuguese Emigration Museum about information access in XML collections associated with semantic information. The museum asset is made up of documents of more than 8 kinds, ranging from passport records to photos/cards and building-drawings. In this chapter, the authors discuss the approach used to create the exhibition rooms of the virtual Web-based museum. Each room consists of the information contained in those single or interrelated resources. The information exhibited in each room is described by an ontology, written in OWL. The authors also discuss the approach used to take advantage of a combination of structural and semantic information to efficiently retrieve documents from the MEC collection. Both approaches can be automatised to allow a very systematic way to deal with the huge and rich museum assets.


2012 ◽  
Author(s):  
Darya L. Zabelina ◽  
Emmanuel Guzman-Martinez ◽  
Laura Ortega ◽  
Marcia Grabowecky ◽  
Mark Beeman ◽  
...  

2010 ◽  
Vol 3 (1) ◽  
pp. 1-30 ◽  
Author(s):  
Heike Baeskow

For many decades there has been a consensus among linguists of various schools that derivational suffixes function not only to determine the word-class of the complex expressions they form, but also convey semantic information. The aspect of suffix-inherent meaning is ignored by representatives of a relatively new theoretical direction – Neo-Construction Grammar – who consider derivational suffixes to be either purely functional elements of the grammar or meaningless phonological realizations of abstract grammatical morphemes. The latter view is maintained by adherents of Distributed Morphology, who at the same time emphasize the importance of conceptual knowledge for derivational processes without attempting to define this aspect. The purpose of this study is first of all to provide support for the long-standing assumption that suffixes are inherently meaningful. The focus of interest is on the suffixes -ship, -dom and -hood. Data from Old English and Modern English (including neologisms) will show that these suffixes have developed rich arrays of meaning which cannot be structurally derived. Moreover, since conceptual knowledge is indeed an important factor for word-formation processes, a concrete, theory-independent model for the representation of the synchronically observable meaning components associated with -ship, -dom and -hood will be proposed.


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