Considering that the world population is aging, health-support issues are in evidence, and
many dangerous situations concerning users in their living environment may arise. This …

Purpose–The broader adoption of the internet along with web‐based systems has defined a
new way of exchanging information. That advance added by the multiplication of mobile …

Ubiquitous computing technologies have been applied in several areas. However, it still
presents a number of challenges, both for the full implementation of technologies and for the …

Dealing with diverse ontologies by means of semantic alignment stills always an attractive
research axe. This allows performing the semantic interoperability among ontologies. A …

Like other components of Semantic Web-based applications, ontologies are evolving over
time to reflect changes in the real world. Several of these applications require keeping a full …

A number of ubiquitous systems are considering how to deal with situation-awareness to act
in a personalized manner according to user's needs. Indeed, most of the research efforts in …

As Web-based learning grows; we assist a proliferation of data, learning objects (LO) and
tools. This imposes new challenges as, for example, how to organize these resources, how …

The evolution phenomenon has ever been spanning as various fields as politics, economy,
laws, health, education and technology. Indeed, it an incremental process that consists in …

Ontology networks (ON) have been arising as robust frameworks for organizing, linking, and
managing vast amounts of information across different domains. However, the development …

Web site recommendation systems help to get high quality information. The modeling of
recommendation system involves the combination of many features: metrics of quality …