Now showing items 1-20 of 47

    • A Basic repository of operations for the refinement of general ontologies 

      Palol Arregui, Xavier de (2004-05)
      External research report
      Open Access
      In general, most conceptual schemas for an information system are developed from scratch, however an emerging approach tries to reuse as much as possible the knowledge included in existing ontologies.
    • About information systems as a key for the sustainability strategy : case on energy efficiency of UPC buildings 

      Ferrer Balas, Dídac; Martorell, Galdric Ruiz; Cuchí Burgos, Alberto (AGS Center, cop. 2007, 2007)
      Conference report
      Open Access
    • Assessing what Information Quality means in OTS selection processes 

      Ayala Martínez, Claudia Patricia; Franch Gutiérrez, Javier (IEEE Computer Society, 2008)
      Conference lecture
      Open Access
      OTS selection plays a crucial role in the deployment of software systems. One of its main current problems is how to deal with the vast amount of unstructured, incomplete, evolvable and widespread information that highly ...
    • Comparing non-parametric ensemble methods for document clustering 

      González Pellicer, Edgar; Turmo Borras, Jorge (Springer Verlag, 2008)
      Conference report
      Restricted access - publisher's policy
      The biases of individual algorithms for non-parametric document clustering can lead to non-optimal solutions. Ensemble clustering methods may overcome this limitation, but have not been applied to document collections. ...
    • Computing in transition: the origins of Barcelona's School of Informatics, 1976-1984 

      Fornés de Juan, Jordi; Herran, Néstor (2013-11-20)
      Article
      Restricted access - publisher's policy
      This article analyses the establishment of the first computer science university degrees in Catalonia in 1976 in a context of political transition to democracy in Spain. Based on an oral history project and the examination ...
    • Construcción automática de prototipos de sistemas de información a partir de modelos conceptuales en DADES 

      Sistac Planas, Jaume; Olivé Ramon, Antoni (Asociación Española de Informática y Automática (AEIA), 1985)
      Conference report
      Open Access
      Muchos esfuerzos actuales de investigación y desarrollo en el àrea de los sistemas de Información (SI) se dirigen hacia la construcción automàtica de prototipos. Tal construcción parte de una definición previa del SI en ...
    • Deriving transaction specifications from deductive conceptual models of information systems 

      Sancho Samsó, María Ribera; Olivé Ramon, Antoni (1994-03)
      External research report
      Open Access
      We review the main components of a Deductive Conceptual Model (DCM) of an IS, and introduce a logic-based language for its specification. We then present a new, formal method for the derivation of transaction specifications ...
    • Design and implementation of partition profile - an experience report 

      Cabot, J; Gómez Seoane, Cristina (2002-12)
      External research report
      Open Access
      The definition of UML profiles is an important research area in information systems engineering. In this report, we aim at contributing to the area in twofold. On the one hand, we study the limitations of CASE tools ...
    • Enforcement of conceptual schema quality issues in current integrated development environments 

      Aguilera Moncusí, David; Gómez Seoane, Cristina; Olivé Ramon, Antoni (2013)
      Conference report
      Restricted access - publisher's policy
      We believe that one of the most effective ways of increasing the quality of conceptual schemas in practice is by using an Integrated Development Environment (IDE) that enforces all relevant quality criteria. With this view, ...
    • Enterprise resource planning : an annotated bibliography 

      Pastor Collado, Juan Antonio; Esteves, José (2000-11)
      External research report
      Open Access
      Despite the growing interest of ERP area, publications on these systems within the academic information systems community, as reflected by contributions to in ternational conferences and journals is only emerging. The ...
    • Evolving partitions in conceptual schemas in the UML (Extended version) 

      Gómez Seoane, Cristina; Olivé Ramon, Antoni (2002-02)
      External research report
      Open Access
      The evolution of information systems from their conceptual schemas is an important research area in information systems engineering. In this paper, we aim at contributing to the area by focusing on a particular conceptual ...
    • Evolving temporal conceptual schemas: the reification case 

      Gómez Seoane, Cristina; López, Juan Ramon; Olivé Ramon, Antoni (Institute of Electrical and Electronics Engineers (IEEE), 2000)
      Conference report
      Open Access
      We study temporal conceptual schema evolutions related to reification, a typical and complex modeling construct. Various types of reification are considered. Using a previously defined framework, we specify only at conceptual ...
    • Funciones de comparación de carácteres para APNM: la distancia DEA 

      Camps Pare, Rafael (2002-10)
      External research report
      Open Access
      A typical application of the ASM (Approximate String Matching) is the matching of personal names, as for example to search people in the DB of an Information System. Through the years, several similarity functions have ...
    • H-word: Supporting job scheduling in Hadoop with workload-driven data redistribution 

      Jovanovic, Petar; Romero Moral, Óscar; Calders, Toon; Abelló Gamazo, Alberto (2016)
      Conference report
      Open Access
      Today’s distributed data processing systems typically follow a query shipping approach and exploit data locality for reducing network traffic. In such systems the distribution of data over the cluster resources plays a ...
    • Implementing data-dependent triangulations with higher order Delaunay triangulations 

      Rodríguez, Natalia; Silveira, Rodrigo Ignacio (Association for Computing Machinery (ACM), 2016)
      Conference report
      Restricted access - publisher's policy
      The Delaunay triangulation is the standard choice for building triangulated irregular networks (TINs) to represent terrain surfaces. However, the Delaunay triangulation is based only on the 2D coordinates of the data points, ...
    • Incremental mapping compilation in an object-to-relational mapping system 

      Bernstein, Philip A.; Jacob, Marie; Pérez, Jorge; Rull Fort, Guillem; Terwilliger, James F. (2013)
      Conference report
      Restricted access - publisher's policy
      In an object-to-relational mapping system (ORM), mapping expressions explain how to expose relational data as objects and how to store objects in tables. If mappings are sufficiently expressive, then it is possible to ...
    • Information microsystems 

      Pradel Miquel, Jordi; Raya Martos, Jose Antonio; Franch Gutiérrez, Javier (Institute for Systems and Technologies of Information, Control and Communication (INSTICC), 2010)
      Conference lecture
      Open Access
      Given their need to manage the information they have under control, organizations usually choose among two types of widely used IT solutions: 1) information systems based on databases (DBIS) that are powerful but expensive ...
    • Information systems action research weaknesses addressed with project management 

      Estay Niculcar, Christian Antonio; Pastor Collado, Juan Antonio (2001-03)
      External research report
      Open Access
      Action research is a qualitative research method with several weaknesses when it is used in Information Systems. In order to improve action research in Information Systems, in this paper we address these weaknesses ...
    • Information systems outsourcing in public administration: an emergent research topic 

      Marco Simó, Josep M.; Macau Nadal, Rafael; Pastor Collado, Juan Antonio (2007)
      Conference report
      Open Access
      After reviewing the most relevant academic sources, we believe that there is still little academic literature on information systems (IS) outsourcing specialized for public administration (PA). In this paper we present the ...
    • Information systems supported organizational learning as a competitive advantage 

      Arias, Jose Manuel; Solana, Julian Miguel (School of Industrial and Aeronautic Engineering of Terrassa (ETSEIAT). Universitat Politècnica de Catalunya (UPC), 2013-07)
      Article
      Open Access
      Purpose: The purpose of this paper is to analyze the characteristics that make information systems useful in gathering and processing information with the aim of organizational learning and subsequent structural adaptation ...