Browsing by Subject "Artificial intelligence"

Now showing items 21-40 of 114

    • Article  

      Brain white matter lesions classification in multiple sclerosis subjects for the prognosis of future disability 

      Loizou, Christos P.; Kyriacou, Efthyvoulos C.; Seimenis, Ioannis; Pantzaris, Marios C.; Christodoulou, Chris C.; Pattichis, Constantinos S. (2011)
      This study investigates the application of classification methods for the prognosis of future disability on MRI-detectable brain white matter lesions in subjects diagnosed with clinical isolated syndrome (CIS) of multiple ...
    • Conference Object  

      Building and validating a reduced TPC-H benchmark 

      Vandierendonck, Hans; Trancoso, Pedro (2006)
      The properties of computer system such as performance, energy, reliability, etc. are commonly evaluated by running benchmarks. However, the benchmarking process is complicated to set-up and use and running the benchmarks ...
    • Article  

      Categorized sliding window in streaming data management systems 

      Papas, Marios; Larriba-Pey, J. -L; Trancoso, Pedro (2008)
      For many applications, data is collected at very large rates from various sources. Applications that produce results from this data have a requirement for very efficient processing in order to achieve timely decisions. An ...
    • Conference Object  

      Ceteris paribus preference elicitation with predictive guarantees 

      Dimopoulos, Yannis; Michael, Loizos; Athienitou, F. (2009)
      CP-networks have been proposed as a simple and intuitive graphical tool for representing conditional ceteris paribus preference statements over the values of a set of variables. While the problem of reasoning with CP-networks ...
    • Article  

      Classification of atherosclerotic carotid plaques using morphological analysis on ultrasound images 

      Kyriacou, Efthyvoulos C.; Pattichis, Marios S.; Pattichis, Constantinos S.; Mavrommatis, A.; Christodoulou, Christodoulos I.; Kakkos, Stavros K.; Nicolaïdes, Andrew N. (2009)
      The aim of this study was to investigate the usefulness of multilevel binary and gray scale morphological analysis in the assessment of atherosclerotic carotid plaques. Ultrasound images were recorded from 137 asymptomatic ...
    • Article  

      A combinatorial characterization of properties preserved by antitokens 

      Busch, Costas; Demetriou, Neophytos; Herlihy, M.; Mavronicolas, Marios (2000)
      Balancing networks are highly distributed data structures used to solve multiprocessor synchronization problems. Typically, balancing networks are accessed by tokens, and the distribution of the tokens on the network’s ...
    • Article  

      Combining pragmatics and intelligence in semantic web service discovery 

      Tamani, E.; Evripidou, Paraskevas (2007)
      In this paper we present an architecture that augments existing semantic-based web service discovery solutions. The idea is to combine principles from the semantic and pragmatic web in order for the web service selection ...
    • Article  

      Comments on "A modified reachability tree approach to analysis of unbounded Petri nets" 

      Ru, Y.; Wu, W.; Hadjicostis, Christoforos N. (2006)
      The above paper introduced the construction of a modified reachability tree (MRT) for (unbounded) Petri nets and its application to reachability, liveness, and deadlock analysis. This note shows via a counterexample that ...
    • Article  

      Complexity of rational and irrational nash equilibria 

      Bilò, Vittorio; Mavronicolas, Marios (2014)
      We introduce two new natural decision problems, denoted as ∃ RATIONAL NASH and ∃ IRRATIONAL NASH, pertinent to the rationality and irrationality, respectively, of Nash equilibria for (finite) strategic games. These problems ...
    • Conference Object  

      Computational intelligence in management of ATM networks: a survey of current state of research 

      Sekercioglu, Y. Ahmet; Pitsillides, Andreas; Vasilakos, Athanasios V. (1999)
      Today, a number of researchers are looking at alternative non-analytical control system design and modeling techniques that have the ability to devise effective, robust ATM network management schemes. Such schemes employ ...
    • Conference Object  

      Computational intelligent diagnostics systems in medicine 

      Schizas, Christos N. (IEEE, 1997)
      A literature search over the last few years has shown that there is a steady increase in publications on computer-based medical diagnostic applications, ranging from diagnostic aids for the physician or hospital staff, to ...
    • Article  

      Computational logic foundations of KGP agents 

      Kakas, Antonis C.; Mancarella, P.; Sadri, F.; Stathis, Kostas; Toni, F. (2008)
      This paper presents the computational logic foundations of a model of agency called the KGP (Knowledge, Goals and Plan) model. This model allows the specification of heterogeneous agents that can interact with each other, ...
    • Article  

      Computational modeling of visual selective attention based on correlation and synchronization of neural activity 

      Neokleous,Kleanthis C.; Avraamides, Marios N.; Schizas, Christos N. (2009)
      Within the broad area of computational intelligence, it is of great importance to develop new computational models of human behaviour aspects. In this report we look into the recently suggested theory that neural synchronization ...
    • Article  

      The computational value of joint consistency 

      Dimopoulos, Yannis (1994)
      In this paper we investigate the complexity of some recent reconstructions of Reiter's Default Logic using graph-theoretical structures. It turns out that requiring joint consistency of the justification of the applied ...
    • Article  

      Congestion control in wireless sensor networks based on bird flocking behavior 

      Antoniou, Pavlos Ch.; Pitsillides, Andreas; Blackwell, T.; Engelbrecht, A.; Michael, Loizos (2013)
      This paper proposes that the flocking behavior of birds can guide the design of a robust, scalable and self-adaptive congestion control protocol in the context of wireless sensor networks (WSNs). The proposed approach ...
    • Article  

      Congestion control in wireless sensor networks based on the bird flocking behavior 

      Antoniou, Pavlos Ch.; Pitsillides, Andreas; Engelbrecht, A.; Blackwell, T.; Michael, Loizos (2009)
      Recently, performance controlled wireless sensor networks have attracted significant interest with the emergence of mission-critical applications (e.g. health monitoring). Performance control can be carried out by robust ...
    • Article  

      Congestion games with player-specific constants 

      Mavronicolas, Marios; Milchtaich, I.; Monien, Burkhard; Tiemann, K. (2007)
      We consider a special case of weighted congestion games with player-specific latency functions where each player uses for each particular resource a fixed (non-decreasing) delay function together with a player-specific ...
    • Article  

      Control-driven coordination programming in shared dataspace 

      Papadopoulos, George Angelos; Arbab, Farhad (1997)
      This paper argues for an alternative way of designing coordination models for parallel and distributed environments based on a complete symmetry between and decoupling of producers and consumers, as well as a clear distinction ...
    • Conference Object  

      Data parallel acceleration of decision support queries using cell/BE and GPUs 

      Trancoso, Pedro; Othonos, D.; Artemiou, A. (2009)
      Decision Support System (DSS) workloads are known to be one of the most time-consuming database workloads that processes large data sets. Traditionally, DSS queries have been accelerated using large-scale multiprocessor. ...
    • Article  

      Data-driven user profiling to support web adaptation through cognitive styles and navigation behavior 

      Germanakos, Panagiotis; Papatheocharous, Efi; Belk, Marios; Samaras, George S. (2012)
      This paper aims to analyze human navigation behavior and identify similarities of cognitive styles using measures obtained from psychometric tests. Specific navigation metrics are utilized to find identifiable groups of ...