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Web Services are interfaces that describe a collection of operations that are network-accessible through standardized web protocols. When a required operation is not found, several services can be compounded to get a composite service that performs the desired task. To find this composite service a search process in a, generally , huge search space must be(More)
  • Ana Rodriguez Groba, Borja Vázquez Barreiros, Manuel Lama, Adriana Gewerc, Manuel Mucientes
  • 2014
—In self-regulated learning, evaluation is a complex task of the teaching process, but even more if students have social media that allow them to build their personal learning environment in different ways. In these kind of virtual environments a large amount of data that needs to be assessed by teachers is generated, and therefore they require tools that(More)
In this paper, we present an ontology to represent the semantics of the IMS Learning Design (IMS LD) specification, a metadata standard used to describe the main elements of the learning design process. The motivation of this work relies on the expressiveness limitations found on the current XML-Schema implementation of the IMS LD conceptual model. To solve(More)
Semantic Web Services (SWS) are Web Services (WS) whose description is semantically enhanced with markup languages (e.g., OWLS). This semantic description will enable external agents and programs to discover, compose and invoke SWSs. However, as a previous step to the specification of SWSs in a language, it must be designed at a conceptual level to(More)
Accuracy in processing time estimation of different manufacturing operations is fundamental to get more competitive prices and higher profits in an industry. The manufacturing times of a machine depend on several input variables and, for each class or type of product, a regression function for that machine can be defined. Time estimations are used for(More)
Web Services (WS) are software modules that perform operations that are network-accessible through XML messaging. Web Services in the Semantic Web, that is, Semantic Web Services (SWS), should describe semantically their structure and capabilities to enable its automatic discovery, invocation and composition. In this work we present a development(More)
—Service Oriented Architectures and web service technology are becoming popular in recent years. As more web services can be used over the Internet, the need to find efficient algorithms for web services composition that can deal with large amounts of services becomes important. These algorithms must deal with different issues like performance, semantics or(More)
  • Ricardo Amorim, Manuel Lama, Eduardo Sánchez, Xosé A Vila
  • 2003
In this paper, we present EUME Onto, an educational ontology that describe terms of learning design, contents and resources. This ontology is intended to (1) organize the available information; and (2) provide the grounds of the knowledge based for an Intelligent Learning Management System. EUME Onto is based on metadata standards such as IMS-EML, LOM 1484,(More)