DJEBRI , Ahmed El Amine

The Semantic Web has evolved to reach different applications. It was designed to enable machines to understand available resources on the World Wide Web and use the extracted information in the decision-making and reasoning processes. Hence, the Web is an open world where people can say whatever they want, and users -in this case, people and...

The current Semantic Web Standards allow the existence of incomplete, invalid or more generally, uncertain data. This work introduces a framework to handle uncertainty in the Semantic Web : Uncertainty representation, reasoning over uncertain data, belief revision and propagation.

In the last two decades, the Linked Open Data paradigm has been experiencing exponential growth. Regularly, new datasets and ontologies are made publicly available, and novel projects are initiated to stimulate their continuous development and reuse, pushing more and more actors to adhere to the Semantic Web principles. The guidelines provided...

There is no credibility insurance measure for the information provided by the Web. In most cases, information cannot be checked for accuracy. Semantic Web technologies aimed to give structure and sense to information published on the Web and to provide us with a machine-readable data format for interlinked data. However, Semantic Web standards...

.The open nature of the Web exposes it to the many imper-fections of our world. As a result, before we can use knowledge obtainedfrom the Web, we need to represent that fuzzy, vague, ambiguous and un-certain information. Current standards of the Semantic Web and LinkedData do not support such a representation in a formal way and indepen-dently...

For data sources to ensure providing reliable linked data, they need to indicate information about the (un)certainty of their data based on the views of their consumers. In Addition, uncertainty information in terms of Semantic Web has also to be encoded into a readable, publishable, and exchangeable format to increase the interoperability of...