Listar por autoría "b98f5be0-c3f9-418c-95d0-ac4914f14950"

Mostrando ítems 21-40 de 54

    • closedAccess   Finding association rules in semantic web data 

      Nebot Romero, Victoria; Berlanga Llavori, Rafael Elsevier (2012-02)
      The amount of ontologies and semantic annotations available on the Web is constantly growing. This new type of complex and heterogeneous graph-structured data raises new challenges for the data mining community. In this ...

    • closedAccess   Fragment-based approximate retrieval in highly heterogeneous XML collections 

      Sanz, Ismael; Mesiti, Marco; Guerrini, G.; Berlanga Llavori, Rafael Elsevier (2008)
      Due to the heterogeneous nature of XML data for internet applications exact matching of queries is often inadequate. The need arises to quickly identify subtrees of XML documents in a collection that are similar to a given ...

    • closedAccess   Generating complex ontology instances from documents 

      Danger, Roxana; Berlanga Llavori, Rafael Elsevier (2009)
      This paper presents a novel Information Extraction system able to generate complex instances from free text available on the Web. The approach is based on a non-monotonical processing over ontologies, and makes use of ...

    • openAccess   In the pursuit of a semantic similarity metric based on UMLS annotations for articles in PubMed Central 

      García Castro, Leyla Jael; Berlanga Llavori, Rafael; Garcia, Alexander Elsevier (2015-10)
      Motivation Although full-text articles are provided by the publishers in electronic formats, it remains a challenge to find related work beyond the title and abstract context. Identifying related articles based on their ...

    • 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   Knowledge based word-concept model estimation and refinement for biomedical text mining 

      Jimeno Yepes, Antonio José; Berlanga Llavori, Rafael Copyright © 2014 Elsevier Inc. (2014-12)
      Text mining of scientific literature has been essential for setting up large public biomedical databases, which are being widely used by the research community. In the biomedical domain, the existence of a large number of ...

    • openAccess   Learning a statistical model of product aspects for sentiment analysis 

      García Moya, Lisette; Berlanga Llavori, Rafael; Anaya Sánchez, Henry Sociedad Española para el Procesamiento del Lenguaje Natural (SEPLN) (2012)
      En este art culo se introduce una nueva metodolog a para modelar ca- racter sticas de productos a partir de una colecci on de opiniones de usuarios. La metodolog a propuesta se basa en modelos estad sticos de lenguajes ...

    • openAccess   Learning Cognitive-Affective Digital Twins from Social Networks 

      Navarro, Andrea; Berlanga Llavori, Rafael; Museros, Lledó IOS Press (2021-10)
      This paper presents an ongoing project about the implementation of digital twins (DT) for simulating cognitive-affective behaviours in social networks. Our approach relies on a pure data-driven solution, which takes ...

    • openAccess   Logic-based assessment of the compatibility of UMLS ontology sources 

      Jiménez Ruiz, Ernesto; Cuenca Grau, Bernardo; Horrocks, Ian; Berlanga Llavori, Rafael BioMed Central (2011-03-07)
      Background: The UMLS Metathesaurus (UMLS-Meta) is currently the most comprehensive effort for integrating independently-developed medical thesauri and ontologies. UMLS-Meta is being used in many applications, including ...

    • openAccess   Modeling Analytical Streams for Social Business Intelligence 

      Lanza Cruz, Indira Lázara; Berlanga Llavori, Rafael; Aramburu Cabo, María José MDPI (2018-08)
      Social Business Intelligence (SBI) enables companies to capture strategic information from public social networks. Contrary to traditional Business Intelligence (BI), SBI has to face the high dynamicity of both the social ...

    • openAccess   Multidimensional Author Profling for Social Business Intelligence 

      Lanza Cruz, Indira Lázara; Berlanga Llavori, Rafael; Aramburu Cabo, María José Springer (2023)
      This paper presents a novel author profling method specially aimed at classifying social network users into the multidimensional perspectives for social business intelligence (SBI) applications. In this scenario, being the ...

    • 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 ...

    • openAccess   On the Problem of Automatically Aligning Indicators to SDGs 

      Soriano, Mario; Berlanga Llavori, Rafael; Lanza Cruz, Indira Lázara Springer Nature (2023-10-21)
      In this paper we present a first approach to the application of transformer-based language models to the automatic alignment to sustainable development goals (SDGs). This task is quite relevant for the development of new ...

    • openAccess   Ontology integration using mappings: towards getting the right logical consequences 

      Jiménez Ruiz, Ernesto; Cuenca Grau, Bernardo; Horrocks, Ian; Berlanga Llavori, Rafael Springer Verlag (Germany) (2009)
      We propose a general method and novel algorithmic techniques to facilitate the integration of independently developed ontologies using mappings. Our method and techniques aim at helping users understand and evaluate the ...

    • closedAccess   Ontology refinement for improved information retrieval 

      Jimeno Yepes, Antonio José; Berlanga Llavori, Rafael; Rebholz-Schuhmann, Dietrich Elsevier (2010)
      Ontologies are frequently used in information retrieval being their main applications the expansion of queries, semantic indexing of documents and the organization of search results. Ontologies provide lexical items, allow ...

    • openAccess   Población de un almacén de datos con datos enriquecidos semánticamente. 

      Nebot Romero, Victoria; Berlanga Llavori, Rafael Institute of Electrical and Electronics Engineers (IEEE) (2010)
      Debido al auge de la Web Semántica cada vez existen más repositorios con grandes cantidades de datos semánticos (datos anotados con elementos de ontologías), con una estructura compleja, semi-estructurada y heterogénea. ...

    • openAccess   Quality Indicators for Social Business Intelligence 

      Berlanga Llavori, Rafael; Lanza Cruz, Indira Lázara; Aramburu Cabo, María José IEEE (2019-10-22)
      The main purpose of Social Business Intelligence is to help companies in making decisions by performing multidimensional analysis of the relevant information disseminated on social networks. Although data quality is a ...

    • openAccess   Quality management in social business intelligence projects 

      Aramburu Cabo, María José; Berlanga Llavori, Rafael; Lanza Cruz, Indira Lázara SciTePress Science and Technology Publications (2021)
      Social networks have become a new source of useful information for companies. Increasing the value of social data requires, first, assessing and improving the quality of the relevant data and, subsequently, developing ...

    • closedAccess   Retrieving Product Features and Opinions from Customer Reviews 

      García Moya, Lisette; Anaya Sánchez, Henry; Berlanga Llavori, Rafael Institute of Electrical and Electronics Engineers (IEEE) (2013)
      A new methodology based on language models retrieves product features and opinions from a collection of free-text customer reviews about a product or service. The proposal relies on a language-modeling framework that can ...

    • openAccess   Reuse of terminological resources for efficient ontological 

      Jimeno Yepes, Antonio José; Jiménez Ruiz, Ernesto; Berlanga Llavori, Rafael; Rebholz-Schuhmann, Dietrich BioMed Central (2009-10-01)
      This paper is intended to explore how to use terminological resources for ontology engineering. Nowadays there are several biomedical ontologies describing overlapping domains, but there is not a clear correspondence between ...