A Linked Open Data Approach for Web Service Evolution

2019 ◽  
pp. 265-281
Author(s):  
Hamza Labbaci ◽  
Nasredine Cheniki ◽  
Yacine Sam ◽  
Nizar Messai ◽  
Brahim Medjahed ◽  
...  
Keyword(s):  
Web Service ◽  
Open Data ◽  
Linked Open Data ◽  
Service Evolution

Standards for Achieving Interoperability of eGovernment in Europe

2012 ◽  
pp. 249-268
Author(s):  
Marc Wilhelm Küster
Keyword(s):  
Web Service ◽  
Data Exchange ◽  
Open Data ◽  
Current Situation ◽  
Linked Open Data ◽  
Use Cases ◽  
Current Work ◽  
Member States ◽  
Metadata Standards ◽  
Service Standards

E-government interoperability frameworks in Europe and the standards they reference are diverse, often reflecting different legal and policy priorities across the continent. Selected examples from a number of member states illustrate how legal interoperability impacts the choice or creation of e-Government standards. It looks at the situation of technical interactions, especially the use of web service standards, then at two data exchange standards, two metadata standards, and the current work on linked open data. The examples discussed represent different use cases (Government to Government / G2G, Government to Business / G2B, Government to Citizen / G2C), allowing an overview over the current situation in Europe.

Standards for Achieving Interoperability of eGovernment in Europe

2012 ◽  
pp. 82-99
Author(s):  
Marc Wilhelm Küster
Keyword(s):  
Web Service ◽  
Data Exchange ◽  
Open Data ◽  
Current Situation ◽  
Linked Open Data ◽  
Use Cases ◽  
Current Work ◽  
Member States ◽  
Metadata Standards ◽  
Service Standards

E-government interoperability frameworks in Europe and the standards they reference are diverse, often reflecting different legal and policy priorities across the continent. Selected examples from a number of member states illustrate how legal interoperability impacts the choice or creation of e-Government standards. It looks at the situation of technical interactions, especially the use of web service standards, then at two data exchange standards, two metadata standards, and the current work on linked open data. The examples discussed represent different use cases (Government to Government / G2G, Government to Business / G2B, Government to Citizen / G2C), allowing an overview over the current situation in Europe.

Europeana no Linked Open Data: conceitos de Web Semântica na dimensão aplicada das humanidades digitais

2017 ◽  
Vol 12 (2) ◽  
Author(s):  
Caio Saraiva Coneglian ◽  
José Eduardo Santarem Segundo
Keyword(s):  
Linked Data ◽  
Open Data ◽  
Linked Open Data

O surgimento de novas tecnologias, tem introduzido meios para a divulgação e a disponibilização das informações mais eficientemente. Uma iniciativa, chamada de Europeana, vem promovendo esta adaptação dos objetos informacionais dentro da Web, e mais especificamente no Linked Data. Desta forma, o presente estudo tem como objetivo apresentar uma discussão acerca da relação entre as Humanidades Digitais e o Linked Open Data, na figura da Europeana. Para tal, utilizamos uma metodologia exploratória e que busca explorar as questões relacionadas ao modelo de dados da Europeana, EDM, por meio do SPARQL. Como resultados, compreendemos as características do EDM, pela utilização do SPARQL. Identificamos, ainda, a importância que o conceito de Humanidades Digitais possui dentro do contexto da Europeana.Palavras-chave: Web semântica. Linked open data. Humanidades digitais. Europeana. EDM.Link: https://periodicos.ufsc.br/index.php/eb/article/view/1518-2924.2017v22n48p88/33031

scholarly journals A Hybrid Approach Combining R*-Tree and k-d Trees to Improve Linked Open Data Query Performance

2021 ◽  
Vol 11 (5) ◽  
pp. 2405
Author(s):  
Yuxiang Sun ◽  
Tianyi Zhao ◽  
Seulgi Yoon ◽  
Yongju Lee
Keyword(s):  
Flash Memory ◽  
Query Language ◽  
Hybrid Approach ◽  
Open Data ◽  
Main Memory ◽  
Linked Open Data ◽  
Index Structure ◽  
Identification Algorithm ◽  
Distributed Computing Systems ◽  
Query Performance

Semantic Web has recently gained traction with the use of Linked Open Data (LOD) on the Web. Although numerous state-of-the-art methodologies, standards, and technologies are applicable to the LOD cloud, many issues persist. Because the LOD cloud is based on graph-based resource description framework (RDF) triples and the SPARQL query language, we cannot directly adopt traditional techniques employed for database management systems or distributed computing systems. This paper addresses how the LOD cloud can be efficiently organized, retrieved, and evaluated. We propose a novel hybrid approach that combines the index and live exploration approaches for improved LOD join query performance. Using a two-step index structure combining a disk-based 3D R*-tree with the extended multidimensional histogram and flash memory-based k-d trees, we can efficiently discover interlinked data distributed across multiple resources. Because this method rapidly prunes numerous false hits, the performance of join query processing is remarkably improved. We also propose a hot-cold segment identification algorithm to identify regions of high interest. The proposed method is compared with existing popular methods on real RDF datasets. Results indicate that our method outperforms the existing methods because it can quickly obtain target results by reducing unnecessary data scanning and reduce the amount of main memory required to load filtering results.

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