Now showing items 10-29 of 450

    • Algebraic Translation and Optimization of (Nested) XPath Expressions 

      Brantner, M; Kanne, CC; Helmer, S; Moerkotte, G (IEEE, 2006)
      The XPath language incorporates powerful primitives for formulating queries containing nested subexpressions which are existentially or universally quantified. However, even the best published approaches for evaluating ...
    • Alleviating the new user problem in collaborative filtering by exploiting personality information 

      Fernández-Tobías I; Braunhofer M; Elahi M; Ricci F; Cantador I (2016)
      The new user problem in recommender systems is still challenging, and there is not yet a unique solution that can be applied in any domain or situation. In this paper we analyze viable solutions to the new user problem in ...
    • Analyzing user reviews in tourism with topic models 

      Rossetti, M; Stella, F; Zanker, M (Cognizant Communication Corporation / Springer Verlag (Germany), 2016)
      User generated content in general and textual reviews in particular constitute a vast source of information for the decision making of tourists and management and are therefore a key component for e-tourism. This paper ...
    • Anatomy of a native XML base management system 

      Fiebig, T; Helmer, S; Kanne, CC; Moerkotte, G; Neumann, J; Schiele, R; Westmann, T (Springer Verlag (Germany), 2002)
      Several alternatives to manage large XML document collections exist, ranging from file systems over relational or other database systems to specifically tailored XML base management systems. In this paper we give a tour ...
    • Answering queries over incomplete data stream histories 

      Gray, JG; Nutt, W; Williams, MH (Emerald, 2007)
      Purpose – Distributed data streams are an important topic of current research. In such a setting, data values will be missed, e.g. due to network errors. This paper aims to allow this incompleteness to be detected and ...
    • The API economy: Playing the devil's advocate 

      Gat, I; Remencius, T; Sillitti, A; Succi, G; Vlasenko, J (2013)
    • Applications of semantic web technology to support learning content development 

      Pahl, C; Holohan, E (Informing Science Institute, 2009)
      The Semantic Web is based on ontology technology ? a knowledge representation framework ? at its core to make meaning explicit and more accessible to automatic processing. We discuss the potential of this technology for ...
    • An approach to unified cloud service access, manipulation and dynamic orchestration via semantic cloud service operation specification framework 

      Fang D; Liu X; Romdhani I; Pahl C (Springer Open, 2015)
      Cloud computing offers various computational resources via convenient on-demand service provision. Currently, heterogeneous services and cloud resources are usually utilized and managed through diverse service portals. ...
    • Architectural principles for cloud software 

      Pahl C; Jamshidi P; Zimmermann O (2018)
      A cloud is a distributed Internet-based software system providing resources as tiered services. Through service-orientation and virtualization for resource provisioning, cloud applications can be deployed and managed ...
    • Are software analytics efforts worthwhile for small Companies? The case of amisoft 

      Robbes R; Vidal R; Bastarrica M (2013)
      Amisoft, a Chilean software company with 43 employees, successfully uses software analytics in its projects. These support a variety of strategic and tactical decisions, resulting in less overwork of employees. However, ...
    • Are Test Smells Really Harmful? An Empirical Study 

      Bavota, G; Qusef, A; Oliveto, R; Binkley, D; De Lucia, A (Springer Verlag (Germany), 2014)
      Bad code smells have been defined as indicators of potential problems in source code. Techniques to identify and mitigate bad code smells have been proposed and studied. Recently bad test code smells (test smells for short) ...
    • An ASP Approach to Query Completeness Reasoning 

      Nutt, W; Paramonov, S; Savkovic, O (Cambridge University Press (CUP): STM Journals, 2013)
      We address the problem to determine whether a query over a partially complete database can be answered completely, which arises in data integration and decision support. Using so-called table completeness statements, one ...
    • Assimilation of agile practices in use 

      Wang X; Conboy K; Pikkarainen M (2012)
      Agile method use in information systems development (ISD) has grown dramatically in recent years. The emergence of these alternative approaches was very much industry-led at the outset, and while agile method research is ...
    • Automated Reasoning on Conceptual Schemas (Dagstuhl Seminar 13211) 

      Calvanese D; Hartmann S; Teniente E (Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2013)
      This report documents the outcomes of the Dagstuhl Seminar 13211 "Automated Reasoning on Conceptual Schemas". The quality of an information system is largely determined early in the development cycle, i.e., during requirements ...
    • Automatic Identification and Classification of Software Development Video Tutorial Fragments 

      Ponzanelli L; Bavota G; Mocci A; Oliveto R; Di Penta M; Haiduc S; Russo B; Lanza M (2017)
      Software development video tutorials have seen a steep increase in popularity in recent years. Their main advantage is that they thoroughly illustrate how certain technologies, programming languages, etc. are to be used. ...
    • Automating Extract Class Refactoring: an Improved Method and its Evaluation 

      Bavota, G; Marcus, A; Oliveto, R; De Lucia, A (Springer Verlag (Germany), 2014)
      During software evolution the internal structure of the system undergoes continuous modifications. These continuous changes push away the source code from its original design, often reducing its quality, including class ...
    • The Bayesian Ontology Language BEL 

      Ceylan II; Peñaloza R (2016)
      We introduce the new probabilistic description logic (DL) (Formula presented.), which extends the light-weight DL (Formula presented.) with the possibility of expressing uncertainty about the validity of some knowledge. ...
    • BiCGCR2: A new extension of conjugate residual method for solving non-Hermitian linear systems 

      Gu XM; Huang TZ; Carpentieri B (2016)
      In the present paper, we introduce a new extension of the conjugate residual (CR) method for solving non-Hermitian linear systems with the aim of developing an alternative basic solver to the established biconjugate gradient ...
    • The BiCOR and CORS iterative algorithms for solving nonsymmetric linear systems 

      Carpentieri B; Jing YF; Huang TZ (2011)
      We present two iterative algorithms for solving real nonsymmetric and complex non-Hermitian linear systems of equations and that were developed from variants of the nonsymmetric Lanczos method. In this paper, we give the ...