Enviaments recents

  • Online conformance checking using behavioural patterns 

    Burattin, Andrea; Zelst, Sebastiaan J. van; Armas Cervantes, Abel; Dongen, Boudewijn F. van; Carmona Vargas, Josep (Springer, 2018)
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    New and compelling regulations (e.g., the GDPR in Europe) impose tremendous pressure on organizations, in order to adhere to standard procedures, processes, and practices. The field of conformance checking aims to quantify ...
  • An evolutionary technique to approximate multiple optimal alignments 

    Taymouri, Farbod; Carmona Vargas, Josep (Springer, 2018)
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    The alignment of observed and modeled behavior is an essential aid for organizations, since it opens the door for root-cause analysis and enhancement of processes. The state-of-the-art technique for computing alignments ...
  • Reducing event variability in logs by clustering of word embeddings 

    Sánchez Charles, David; Carmona Vargas, Josep; Muntés Mulero, Victor; Solé Simó, Marc (Springer, 2017)
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    Several business-to-business and business-to-consumer services are provided as a human-to-human conversation in which the provider representative guides the conversation towards its resolution based on her experience, ...
  • A fuzzy-based system for peer reliability in JXTA-overlay P2P considering number of interactions 

    Spaho, Evjola; Sakamoto, Shinji; Barolli, Leonard; Xhafa Xhafa, Fatos; Barolli, Valbona; Iwashige, Jiro (Institute of Electrical and Electronics Engineers (IEEE), 2013)
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    The trustworthiness of peers is very important for safe communication in P2P system. In this paper, we propose a fuzzy-based reliability system for P2P Communications in JXTA-Overlay. We use three input parameters: Number ...
  • Is an “effective” online group really effective? 

    Daradoumis, Thanasis; Xhafa Xhafa, Fatos; Marques Puig, Joan Manuel (asociacion española para la inteligencia artificial, 2003)
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    The aim of this paper is to explore the real value of effectiveness and success of online collaborative learning teams by studying and analysing their collaborative behaviour with respect to their problem solving performance. ...
  • Definable inapproximability: New challenges for duplicator 

    Atserias, Albert; Dawar, Anuj (Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2018)
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    We consider the hardness of approximation of optimization problems from the point of view of definability. For many NP-hard optimization problems it is known that, unless P = NP, no polynomial-time algorithm can give an ...
  • Two examples of online eHealth platforms for supporting people living with cognitive impairments and their caregivers 

    Solachidis, Vassilis; Paliokas, Ioannis; Vretos, Nicholas; Votis, Konstantinos; Cortés García, Claudio Ulises; Tzovaras, Dimitrios (Association for Computing Machinery (ACM), 2018)
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    This paper compares two methodological approaches derived from the EU Horizon 2020 funded projects CAREGIVERSPRO-MMD (C-MMD)1 and ICT4LIFE2. Both approaches were initiated in 2016 with the ambition to provide new integrated ...
  • Performance evaluation and comparison of fuzzy-based intelligent CAC Systems for wireless cellular networks 

    Barolli, Leonard; Mino, Gjergji; Ikebata, Taku; Barolli, Admir; Xhafa Xhafa, Fatos; Takizawa, Makoto (Institute of Electrical and Electronics Engineers (IEEE), 2010)
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    The mobile cellular systems are expected to support multiple services with guaranteed Quality of Service(QoS). But, the ability of wireless systems to accommodate expected growth of traffic load and broadband services is ...
  • Implementing a mobile campus using MLE Moodle 

    Xhafa Xhafa, Fatos; Caballé Llobet, Santiago; Rustarazo, Isaac; Barolli, Leonard (Institute of Electrical and Electronics Engineers (IEEE), 2010)
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    Mobile learning is considered the next step of online learning by incorporating mobility as a key requirement. Indeed, the current wide spread of mobile devices and wireless technologies brings an enormous potential to ...
  • An intelligent fuzzy-based cluster head selection system for WSNs and its performance evaluation for D3N parameter 

    Ando, Hironori; Barolli, Leonard; Durresi, Arjan; Xhafa Xhafa, Fatos; Koyama, Akio (Institute of Electrical and Electronics Engineers (IEEE), 2010)
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    Cluster formation and cluster head selection are important problems in sensor network applications and can drastically affect the network's communication energy dissipation. However, selecting of the cluster head is not ...
  • Experimental evaluation of a MANET testbed in indoor stairs scenarios 

    Hiyama, Masahiro; Ikeda, Makoto; Barolli, Leonard; Kulla, Elis; Xhafa Xhafa, Fatos; Durresi, Arjan (Institute of Electrical and Electronics Engineers (IEEE), 2010)
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    In recent years, Mobile Ad hoc Networks (MANETs) are continuing to attract the attention for their potential use in several fields. Mobility and the absence of any fixed infrastructure make MANETs very attractive for ...
  • Tuning operators of genetic algorithms for mesh routers placement problem in Wireless Mesh Networks 

    Xhafa Xhafa, Fatos; Sánchez, Christian; Barolli, Admir; Miho, Rozeta; Barolli, Leonard; Takizawa, Makoto (Institute of Electrical and Electronics Engineers (IEEE), 2010)
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    Wireless Mesh Networks (WMNs) have become an important networking infrastructure for providing cost-efficient broadband wireless connectivity. WMNs are showing their applicability in deployment of medical, transport and ...

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