• closedAccess   A relevance model for a data warehouse contextualized with documents 

      Pérez Martínez, Juan Manuel; Berlanga Llavori, Rafael; Aramburu Cabo, María José Elsevier (2009)
      This paper presents a relevance model to rank the facts of a data warehouse that are described in a set of documents retrieved with an information retrieval (IR) query. The model is based in language modeling and relevance ...
    • closedAccess   Contextualizing data warehouses with documents 

      Pérez Martínez, Juan Manuel; Berlanga Llavori, Rafael; Aramburu Cabo, María José; Pedersen, Torben Bach Elsevier (2008)
      Current data warehouse and OLAP technologies are applied to analyze the structured data that companies store in databases. The context that helps to understand data over time is usually described separately in text-rich ...
    • openAccess   Dedicación de los estudiantes en un contexto de aprendizaje cooperativo basado en proyectos: medición, análisis e implicaciones 

      Traver Roig, Vicente Javier; Pérez Martínez, Juan Manuel Sociedad de la Educación del IEEE (2009-05)
      Discovering the effort students devote to their studies is of key importance for an appropriate design of courses and syllabus. Although over the last years many studies have been carried out in this respect, few of them ...
    • openAccess   Integrating data warehouses with web data : a survey 

      Pérez Martínez, Juan Manuel; Berlanga Llavori, Rafael; Aramburu Cabo, María José; Pedersen, Torben Bach IEEE Computer Society (2008)
      This paper surveys the most relevant research on combining Data Warehouse (DW) and Web data. It studies the XML technologies that are currently being used to integrate, store, query, and retrieve Web data and their ...
    • openAccess   Multidimensional integrated ontologies: a framework for designing semantic data warehouses 

      Nebot Romero, Victoria; Berlanga Llavori, Rafael; Pérez Martínez, Juan Manuel; Aramburu Cabo, María José; Pedersen, Torben Bach Springer Verlag (Germany) (2009)
      The Semantic Web enables companies and organizations to gather huge amounts of valuable semantically annotated data concerning their subjects of interest. Nowadays, many applications attach metadata and semantic annotations ...