Oscar Rodríguez Rocha

Teach on Mars · R&D

The training curriculum for medical doctors requires the intensive and rapid assimilation of a lot of knowledge. To help medical students optimize their learning path, the SIDES 3.0 national French project aims to extend an existing platform with intelligent learning services. This platform contains a large number of annotated learning resources, f...

Data published on the Web following the Linked Data principles has resulted in a global data space called the Web of Data. These principles led to semantically interlink and connect different resources at data level regardless their structure, authoring, location, etc. The tremendous and continuous growth of the Web of Data also implies that now it...

Data published on the Web following the Linked Data principles has resulted in a global data space called the Web of Data. These principles led to semantically interlink and connect different resources at data level regardless their structure, authoring, location, etc. The tremendous and continuous growth of the Web of Data also implies that now it...

Educational quizzes are a powerful and popular tool to test the knowledge acquired by a learner and also to deepen her/his knowledge about a specific subject in an informal and entertaining way. Their production is a time-consuming task that can be automated by taking advantage of existing knowledge bases available on the Web of Linked Open Data (L...

Educational quizzes are useful not only to evaluate or test the knowledge acquired by a learner, but also to help her/him to deepen knowledge about a specific domain or topic in an informal and entertaining way. The production of quizzes is a time-consuming task that can be automated by taking advantage of existing knowledge bases available on the...

The increase in the amount of structured data published on the Web using the principles of Linked Data means that now it is more likely to find resources on the Web of Data that represent real life concepts. Discovering and recommending resources on the Web of Data related to a given resource is still an open research area. This work presents a fra...

In the education field, in order to achieve learning goals, it is necessary to define learning paths that foresee a gradual and incremental acquisition of certain knowledge and skills that students should acquire. In this paper we analyze the educational progressions of the French educational system, we show how to formalize them through a web onto...

In the education field, in order to achieve learning goals, it is necessary to define learning paths that foresee a gradual and incre- mental acquisition of certain knowledge and skills that students should acquire. In this paper we analyze the educational progressions of the French educational system, we show how to formalize them through a web on...

The Web of Data is an interconnected global dataspace in which discovering resources related to a given resource and recommend relevant ones is still an open research area. This work describes a new recommendation algorithm based on structured data published on the Web (Linked Data). The algorithm exploits existing relationships between resources b...

Recommender Systems (RS) are software tools that use analytic technologies to suggest different items of interest to an end user. Linked Data is a set of best practices for publishing and connecting structured data on the Web. This paper presents a systematic literature review to summarize the state of the art in recommender systems that use struct...

Given the increasing amount of structured data published on the Web, many possibilities are open for creating new types of games that use resources from the Web of Data. In particular, if we consider the subcategory of Serious Games in which the object of the game is to educate the user through the interactive discovery of real-life concepts (assoc...

Nowadays the IT Clouds are used to provide services and run applications (in a flexible and scalable way) where the entire lifecycle of the application or service is under the control of the Cloud Management Subsystem that is able to automatically and autonomously start, stop, restart a server or an application. Additionally, it is able to determin...

The evolution of the traditional Web into a Semantic Web and the continuous increase in the amount of data published as Linked Data open up new opportunities for annotation and categorization systems to reuse these data as semantic knowledge bases. Accordingly, Linked Data has been used by information extraction systems to exploit the semantic know...

The expected evolution of the IoT into a huge and growing number of sensors connected to the Internet and generating a huge amount of data, translates into new challenges in the analysis phase for the extraction of useful information to the final user. This scenario opens new opportunities for the introduction of context-awareness features, as it i...

In this paper, we present an approach to exploit Linked Data in Smart Spaces, doing more than just using RDF to represent informa- tion. In particular, we rely on knowledge stored in DBpedia1, a dataset in the Web of Data. We also provide a platform to implement such an approach and a eTourism use case, both developed in collaboration with a mobile...

Internet has evolved and grown tremendously during the last years. We're living the rise of the “self-made” Web Services. On the one hand, this conception reduces the limitations for the creation of new Web Services capable of operating on top of the large Internet technological foundation, while on the other it has some drawbacks such as: slow cre...

Nowadays, the variety of mobile services is growing together with the number of customers and the heterogeneity of their mobile devices, thus, monitoring the users of a mobile network has become a challenge. Considering Smart Space Governing to address this issue, in which the mobile network is considered an Smart Space (due to its size and complex...

Access control is a recognized open issue when interacting with RDF using HTTP methods. In literature, authentication and authorization mechanisms either introduce undesired complexity such as SPARQL and ad-hoc policy languages, or rely on basic access control lists, thus resulting in limited policy expressiveness. In this paper we show how the Shi...

The concept of Emergency Telecommunications (EMTEL) addresses a broad spectrum of aspects related to the provisioning of telecommunications services in emergency situations; these can range from an individual in a state of personal emergency (with need to make an emergency call due to sudden illness, traffic accident, outbreak of fire at home) to a...

A Publish/Subscribe mechanism based on the Open Mobile Alliance's (OMA) Next Generation Services Interface (NGSI) open standard, allows interfacing the information available from many publishers with heterogeneous customers. Pervasive devices (including mobile smartphones) publish a huge amount of real world information, which afterwards is accesse...

Internet has significantly grown during the last decade; also many novel services appeared, generating huge incomes and fame worldwide. This is the era of new Internet services over the top, without requiring specific changes or specific functionalities from the “old” version of Internet. This, on one side, does not pose any limitations for the cre...

The advent of contemporary mobile devices and their increasing computing power and location capabilities combined with the most innovative Web technologies has provided mobile users with new possibilities to share experiences on-the-go. The growing quantity of multimedia content present on the Web makes it difficult for mobile users to retrieve sui...

Nowadays, it's possible to find huge amounts of steadily increasing web resources. Service composition languages and tools are widely used for creating compositions of multiple services in order to meet the user's requirements in the cases when a single Web service does not perform a required task. However, despite the relative intuitiveness of cur...

The rapid and constant evolution of Smart Spaces has introduced an increase in the complexity and quantity of its components, making the monitoring and management processes more challenging and complex. On the other hand, Service Mashups enable the design and development novel and modern Web applications based on easy-to-accomplish end-user service...

The core business of Mobile Network Operators (MNO) has moved from network management and phone services to service providing. In contrast to Information Communication Technology (ICT) service providers, MNOs handle large amounts of their customers’ context data and generated content, which can be used to bring value-added services to customers and...

This month's Works in Progress features eight projects that support the integration of user-generated content (UGC) in a world of pervasive communications. The projects range from AI-based UGC service discovery in the first essay to a semantically enriched information model that communication systems can use to deploy UGC in pervasive applications...

We describe two mashups based on context data and multimedia content retrieved from a client application running on mobile devices. This information is processed by our Context Aware Platform that provides specific APIs to deliver context data to our mashups. First of all, these APIs enable context tagging of pictures and videos acquired by the use...