The Semantic Web: Research and Applications

2005 ◽  
Keyword(s):  



Author(s):  
Nátalia NAKANO ◽  
Talita Cristina da SILVA ◽  
Maria José Vicentini JORENTE ◽  
José Eduardo SANTARÉM SEGUNDO

In 2001 Tim Berners-Lee revealed to the world what he wanted for the future of Web - man and machine working together to develop complex tasks, and that the Web could leverage the way human knowledge is acquired. Since then researchers from different fields of knowledge have engaged in scientific and empirical research to make this dream come true. In this context, the research problem of this article is established: What is the current situation of Semantic Web research in Brazil in Information Science? Who are the researchers of this theme in our country? What are the institutions that support these studies? The present study aimed at listing the most productive authors, institutions that support their research and the specific issues of their investigations. We conducted a literature review in Base de Dados Referencial de Artigos de Periódicos em Ciência da Informação (BRAPCI). We retrieved 41 articles, excluded five for not belonging to Brazilian authors and Brazilian institutions. From the analysis of this corpus, we realized the need to include additional keywords to better understanding of specific studies encompassed by the theme. Thus, we included the keywords: SPARQL, SKOS, RDF and ontology. It was concluded that the studies on the Semantic Web under the aegis of Information Science mostly perform theoretical and philosophical studies, while the computer science professionals seek practical applications of the topic. It was also concluded that a study including other databases could reveal other authors and institutions relevant to the subject of study.



2021 ◽  
Author(s):  
Enrico Daga ◽  
Luigi Asprino ◽  
Paul Mulholland ◽  
Aldo Gangemi

The Semantic Web research community understood since its beginning how crucial it is to equip practitioners with methods to transform non-RDF resources into RDF. Proposals focus on either engineering content transformations or accessing non-RDF resources with SPARQL. Existing solutions require users to learn specific mapping languages (e.g. RML), to know how to query and manipulate a variety of source formats (e.g. XPATH, JSON-Path), or to combine multiple languages (e.g. SPARQL Generate). In this paper, we explore an alternative solution and contribute a general-purpose meta-model for converting non-RDF resources into RDF: Facade-X. Our approach can be implemented by overriding the SERVICE operator and does not require to extend the SPARQL syntax. We compare our approach with the state of art methods RML and SPARQL Generate and show how our solution has lower learning demands and cognitive complexity, and it is cheaper to implement and maintain, while having comparable extensibility and efficiency.



Author(s):  
Jennifer Golbeck ◽  
Bernardo Cuenca Grau ◽  
Christian Halaschek-Wiener ◽  
Aditya Kalyanpur ◽  
Bijan Parsia ◽  
...  


Semantic Web ◽  
2010 ◽  
Vol 1 (1,2) ◽  
pp. 127-130 ◽  
Author(s):  
Marta Sabou




2013 ◽  
Vol 62 (9) ◽  
pp. 26-29 ◽  
Author(s):  
Jenice AromaR ◽  
Mathew Kurian
Keyword(s):  


2013 ◽  
Vol 411-414 ◽  
pp. 341-344
Author(s):  
Hai Fei Zhang

Relational database semantic query namely RDF access to relational database is an important issue in semantic Web research. To realize the query is to build mapping relation between relational database schema and ontology. However, there is natural isomerism between them. The isomerism can be eliminated by transforming relational database schema into similar ontology and then building mapping between conversion ontology and input ontology. This paper realized an ondemanding mapping method when users request query, avoided building all concepts and attributes mapping between conversion ontology and input ontology and improved mapping efficiency.



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