Browsing by Subject "Web services"

Now showing items 21-40 of 40

    • Article  

      Model-driven development of composite context-aware web applications 

      Kapitsaki, Georgia M.; Kateros, D. A.; Prezerakos, G. N.; Venieris, Iakovos St (2009)
      Context-awareness constitutes an essential aspect of services, especially when interaction with end-users is involved. In this paper a solution for the context-aware development of web applications consisting of web services ...
    • Conference Object  

      Model-driven development of composite web applications 

      Kapitsaki, Georgia M.; Kateros, D. A.; Pappas, C. A.; Tselikas, N. D.; Venieris, Iakovos St (2008)
      As the number of available web services increases, the development of web applications that integrate existing web services becomes more and more popular. This class of web applications can be seen as the composition of ...
    • Article  

      Model-driven development of context-aware web applications based on a web service context management architecture 

      Kapitsaki, Georgia M.; Venieris, Iakovos St (2009)
      Context information constitutes an essential aspect of service development and provision in mobile computing in the attempt to provide users with personalized services. The problem of handling context in these environments, ...
    • Article  

      Monitoring elastically adaptive multi-cloud services 

      Trihinas, Demetris; Pallis, George C.; Dikaiakos, Marios D. (2015)
      Automatic resource provisioning is a challenging and complex task. It requires for applications, services and underlying platforms to be continuously monitored at multiple levels and time intervals. The complex nature of ...
    • Conference Object  

      Open source workflow systems in life sciences informatics 

      Achilleos, Kleo G.; Kannas, Christos C.; Nicolaou, Christos A.; Pattichis, Constantinos S.; Promponas, Vasilis J. (2012)
      A simple yet powerful programming tool enabling in silico experimentation, end-to-end data management through web services as well as use of grid and cloud processing power is scientific workflows. This technology is ...
    • Conference Object  

      PALLAS: A querying interface for pervasive computing using handheld devices 

      Polyviou, S.; Evripidou, Paraskevas; Samaras, George S. (2004)
      In this paper we describe PALLAS (PALm Logic-based Algebraic Search), a prototype architecture, design and implementation for a search interface on a portable digital assistant. PALLAS is part of the UbAgent, a middleware ...
    • Conference Object  

      PCP: Privacy-aware Context Profile towards context-aware application development 

      Kapitsaki, Georgia M.; Venieris, Iakovos St (2008)
      Context-awareness constitutes an important aspect in mobile environments, especially when user-centric services are considered. However, user and service related data as part of context information are sensitive and their ...
    • Conference Object  

      A pragmatic methodology to web service discovery 

      Tamani, E.; Evripidou, Paraskevas (2007)
      As in linguistics the semantics co-exist with pragmatics to provide complete and unambiguous meaning to utterances, in the same way the pragmatics should augment the semantics in intelligent applications. Service-Oriented ...
    • Article  

      Prefetching in content distribution networks via Web communities identification and outsourcing 

      Sidiropoulos, Antonis; Pallis, George C.; Katsaros, Dimitrios S.; Stamos, Kostas; Vakali, Athena I.; Manolopoulos, Yannis (2008)
      Content distribution networks (CDNs) improve scalability and reliability, by replicating content to the "edge" of the Internet. Apart from the pure networking issues of the CDNs relevant to the establishment of the ...
    • Article  

      Proposing a fuzzy adaptation mechanism based on cognitive factors of users for web personalization 

      Papatheocharous, Efi; Belk, Marios; Germanakos, Panagiotis; Samaras, George S. (2012)
      The increased demand of Web services and diverse characteristics of users have resulted in a plethora of applications that aim to provide personalized services based on the heterogeneous needs and preferences of users. ...
    • Conference Object  

      Robust runtime optimization of data transfer in queries over web services 

      Gounaris, A.; Yfoulis, C.; Sakellariou, R.; Dikaiakos, Marios D. (2008)
      Self-managing solutions have recently attracted a lot of interest from the database community. The need for self-* properties is more evident in distributed applications comprising heterogeneous and autonomous databases ...
    • Conference Object  

      Self-optimizing block transfer in web service grids 

      Gounaris, A.; Dikaiakos, Marios D.; Yfoulis, C.; Sakellariou, R. (2007)
      Nowadays, Web Services (WSs) play an increasingly important role in Web data management solutions, since they offer a practical solution for accessing and manipulating data sources spanning administrative domains. Nevertheless, ...
    • Conference Object  

      A similarity based approach for integrated Web caching and content replication in CDNs 

      Stamos, Kostas; Pallis, George C.; Thomos, Charilaos; Vakali, Athena I. (2006)
      Web caching and content replication techniques emerged to solve performance problems related to the Web. We propose a generic non-parametric heuristic method that integrates both techniques under a CDN. We provide ...
    • Article  

      The Smart Home meets the Web of Things 

      Kamilaris, Andreas; Pitsillides, Andreas; Trifa, V. (2011)
      In recent years, the merging of computing with physical things, enabled the transformation of everyday objects into information appliances. We propose to reuse the central principles of the modern Web architecture to fully ...
    • Conference Object  

      Social networking of the smart home 

      Kamilaris, Andreas; Pitsillides, Andreas (2010)
      Social networking on the Web has become an integral part of our lives. Merging of computing with physical things enabled the conversion of everyday objects into information appliances. This merging allows Smart Homes to ...
    • Conference Object  

      Socially-Aware Multimedia Content Delivery for the Cloud 

      Kilanioti, Irene; Papadopoulos, George Angelos (Institute of Electrical and Electronics Engineers Inc., 2015)
      Most Content Delivery Networks (CDNs) are operated as a Software as a Service (SaaS): Many cloud providers build their custom CDNs to benefit from content users, as well as reduce demand on their own telecommunications ...
    • Article  

      Type checking purpose-based privacy policies in the π-calculus 

      Kokkinofta, E.; Philippou, Anna (2016)
      In this paper we propose a formal framework for studying privacy preserving policies based on the notion of purpose. Our framework employs the π-calculus with groups accompanied by a type system for capturing privacy ...
    • Article  

      Web service matchmaking for the development of context-aware applications 

      Kapitsaki, Georgia M. (2012)
      Context-awareness is related to the application capability to respond proactively to environment conditions. The reuse of existing components is an important challenge in the development of context-aware applications. Web ...
    • Conference Object  

      Web services -separation of concerns: Computation coordination communication 

      Limniotes, Theophilos A.; Papadopoulos, George Angelos; Arbab, Farhad (2004)
      The purpose of this paper is to investigate the use of a new concept in component communication, expressed by the channel based coordination language called ρέω, in the coordination of Web Services. The role of ρέω is to ...
    • Conference Object  

      A Web services-based exergaming platform for senior citizens: The long lasting memories project approach to e-health care 

      Bamidis, Panagiotis D.; Konstantinidis, E. I.; Billis, A.; Frantzidis, C.; Tsolaki, M.; Hlauschek, W.; Kyriacou, Efthyvoulos C.; Neofytou, Marios S.; Pattichis, Constantinos S. (2011)
      This piece of research describes an innovative e-health service that supports the cognitive and physical training of senior citizens and promotes their active ageing. The approach is adopted by the Long Lasting Memories ...