Due to decentralized and linked architecture underlying Linking Data, running complex queries often require collecting data from multiple RDF datasets. The optimization of the runtime of such queries, called federated queries, is of central importance to ensure the scalability of Semantic-Web and Linked-Data-driven applications. This has motivated a considerable body of work on SPARQL query fed...

BACKGROUND Malawi has a high burden of paediatric cardiac disease but a limited number of health providers familiar with these chronic diseases. Given the rising number of Malawian postgraduate paediatric trainees at the University of Malawi College of Medicine, we sought to remedy this lack of basic cardiology training with a long-distance, module-based curriculum that could be utilised indepe...

We propose a shared task for question generation: the ranking of reading comprehension questions about Wikipedia articles generated by a base overgenerating system. This task focuses on domain-general issues in question generation and invites a variety of approaches, and also permits semi-automatic evaluation. We describe an initial system we developed for this task, and an annotation scheme us...

This paper reports on Language Computer Corporation’s participation in the Question Answering track at TREC 2006. An overview of the PowerAnswer 3 question answering system and a description of new features added to meet the challenges of this year’s evaluation are provided. Emphasis is given to temporal constraints in questions and how this affected the outcome of the systems in the task. LCC’...

Definitional Question Answering task is usually proposed as the retrieval of a set of text fragments that contain information relevant to the target to define. Following this principle, a systematic approach to obtain which information is relevant is proposed, along with a new evaluation process. Finally, the paper describes the elaboration of a corpus of definitions in order to produce a gold ...