Now showing items 1-20 of 195

  • 215. L'hora de triar els estudis 

    Universitat Politècnica de Catalunya. Rectorat (Oficina de Mitjans de Comunicació, 2009-01)
    Article
    Open Access
  • Acciones de grupos borrosas 

    Boixader Ibáñez, Dionís; Recasens Ferrés, Jorge (2016)
    Conference report
    Open Access
    Este trabajo generaliza (fuzzifica) las acciones de un grupo sobre un conjunto para tratar situaciones donde hay imprecisión e incertidumbre. Las acciones borrosas pueden tratar la granularidad de un conjunto o incluso ...
  • A cluster head decision system for sensor networks using fuzzy logic and number of neighbor nodes 

    Anno, Junpei; Barolli, Leonard; Durresi, Arjan; Xhafa Xhafa, Fatos; Koyama, Akio (Institute of Electrical and Electronics Engineers (IEEE), 2009)
    Conference report
    Open Access
    Cluster formation and cluster head selection are important problems in sensor network applications and can drastically affect the network’s communication energy dissipation. However, the selection of cluster head is not ...
  • A cluster head selection method for wireless sensor networks based on fuzzy logic 

    Anno, Junpei; Barolli, Leonard; Xhafa Xhafa, Fatos; Durresi, Arjan (Institute of Electrical and Electronics Engineers (IEEE), 2007)
    Conference report
    Open Access
    Sensor networks supported by recent technological advances in low power wireless communications along with silicon integration of various functionalities are emerging as a critically important computer class that enable ...
  • A comparison study of two fuzzy-based handover systems for avoiding ping-pong effect in Wireless Cellular Networks 

    Mino, Gjergji; Barolli, Leonard; Durresi, Arjan; Xhafa Xhafa, Fatos; Koyama, Akio (Institute of Electrical and Electronics Engineers (IEEE), 2009)
    Conference report
    Open Access
    Wireless mobile networks and devices are becoming increasingly popular to provide users the access anytime and anywhere. The mobile systems are based on cellular approach and the area is covered by cells that overlap each ...
  • A Decomposition Theorem for T-Indistinguishability Operators : the Continuous Strict Archimedean Case 

    Boixader Ibáñez, Dionís; Recasens Ferrés, Jorge (2012)
    Conference report
    Open Access
  • A dynamic non-singleton fuzzy logic system for DS/CDMA communications 

    Pérez Neira, Ana Isabel; Sueiro, Jesús Cid; Roca, Josep; Lagunas Hernandez, Miguel A. (Institute of Electrical and Electronics Engineers (IEEE), 1998)
    Conference report
    Open Access
    We investigate a dynamic fuzzy logic system, specifically, its non-singleton generalization, and derive a novel adaptive fuzzy line enhancer that successfully solves the non-linear problem of narrowband interference (NBI) ...
  • A fuzzy-based cluster-head selection system for WSNs: a comparison study for static and mobile sensors 

    Barolli, Leonard; Wang, Qi; Kulla, Ellis; Xhafa Xhafa, Fatos; Kamo, Bexhet; Takizawa, Makoto (IEEE Press. Institute of Electrical and Electronics Engineers, 2012)
    Conference report
    Restricted access - publisher's policy
  • A fuzzy-based data replication system for QoS improvement in MANETs 

    Barolli, Leonard; Spaho, Evjola; Ikeda, Makoto; Kulla, E.; Xhafa Xhafa, Fatos; Youna, Muhammad (ACM Press, NY, 2012)
    Conference report
    Restricted access - publisher's policy
  • A fuzzy-based handover system for avoiding ping-pong effect in wireless cellular networks 

    Barolli, Leonard; Xhafa Xhafa, Fatos; Durresi, Arjan; Koyama, Akio (Institute of Electrical and Electronics Engineers (IEEE), 2008)
    Conference report
    Open Access
    Many handover algorithms are proposed in the literature. However, to make a better handover and keep the QoS in wireless networks is very difficult. In this paper, we propose a new handover system based on fuzzy logic. The ...
  • A fuzzy-based reliability system for JXTA-overlay P2P platform considering as new parameter sustained communication time 

    Liu, Yi; Sakamoto, Shinji; Spaho, Evjola; Matsuo, Keita; Barolli, Leonard; Xhafa Xhafa, Fatos (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Conference report
    Open Access
    In this paper, we propose and evaluate a new fuzzy-based reliability system for Peer-to-Peer (P2P) Communications in JXTA-Overlay platform considering as a new parameter the sustained communication time. In our system, we ...
  • A fuzzy-based reliaility for JXTA-overlay P2P platform considering data download speed, peer congestion situation, number of interaction and packet loss parameters 

    Liu, Yi; Oda, Tetsuya; Spaho, Evjola; Matsuo, Keita; Barolli, Leonard; Xhafa Xhafa, Fatos (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Conference report
    Open Access
    In this paper, we propose and evaluate a new fuzzy-based reliability system for Peer-to-Peer (P2P) communications in JXTA-Overlay platform considering as a new parameter the peer congestion situation. In our system, we ...
  • A fuzzy inductive approach for rule-based modelling of high level structures in algorithmic composition systems 

    Múgica Álvarez, Francisco; Paz Ortiz, Iván; Nebot Castells, M. Àngela; Romero Merino, Enrique (2015)
    Conference report
    Restricted access - publisher's policy
    Algorithmic composition systems are now widely understood. However, its capacity for producing outputs consistently showing high level structures is still a field of research. In the present work, the Fuzzy Inductive ...
  • A fuzzy logic approach to assembly line 

    Fonseca, Daniel J.; Elam, Matthew; Karr, Charles L.; Guest, C.L. (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2005)
    Article
    Open Access
    This paper deals with the use of fuzzy set theory as a viable alternative method for modelling and solving the stochastic assembly line balancing problem. Variability and uncertainty in the assembly line balancing ...
  • A fuzzy logic filter for coherent detection in mobile communication receivers 

    Pérez Neira, Ana Isabel; Lagunas Hernandez, Miguel A.; Jové, A; Artés, A (1998)
    Conference report
    Open Access
    This paper proposes and demonstrates the use of a fuzzy logic filter for carrier phase synchronization in digital mobile communication receivers. The use of a priori knowledge of the dynamics of the phase in mobile fading ...
  • Aggregating fuzzy subgroups and T-vague groups 

    Boixader Ibáñez, Dionís; Mayor, Gaspar; Recasens Ferrés, Jorge (Springer, 2018-01-01)
    Article
    Open Access
    Fuzzy subgroups and T-vague groups are interesting fuzzy algebraic structures that have been widely studied. While fuzzy subgroups fuzzify the concept of crisp subgroup, T-vague groups can be identified with quotient groups ...
  • Aggregating Fuzzy Subgroups and T-vague subgroups 

    Boixader Ibáñez, Dionís; Mayor, Gaspar; Recasens Ferrés, Jorge (Springer, 2017)
    Conference report
    Open Access
  • Aggregating T-equivalence relations 

    Mayor, Gaspar; Recasens Ferrés, Jorge (2016)
    Conference report
    Open Access
    This contribution deals with the problem of aggregating Tequivalence relations, in the sense that we are looking for functions that preserve reflexivity, symmetry, and transitivity with respect to a given t-norm T. We ...
  • Aggregation of T-transitive Relations 

    Jacas Moral, Juan; Recasens Ferrés, Jorge (Wiley InterScience, 2003-12)
    Article
    Restricted access - publisher's policy
    This article studies the aggregation of transitive fuzzy relations. We first find operators that preserve transitivity and then extend the results to aggregating operators. As special cases, means and some kind of suitable ...
  • Aggregation operators and ruled surfaces 

    Recasens Ferrés, Jorge (IOS Press, 2008)
    Conference report
    Open Access