Now showing items 1-20 of 43

  • A fast and efficient algorithm to identify clusters in networks 

    Comellas Padró, Francesc de Paula; Miralles de la Asunción, Alicia (2008-08-02)
    Article
    Open Access
    A characteristic feature of many relevant real life networks, like the WWW, Internet, transportation and communication networks, or even biological and social networks, is their clustering structure. We discuss in this ...
  • A fast and efficient algorithm to identify clusters in networks 

    Comellas Padró, Francesc de Paula; Miralles de la Asunción, Alicia (2010-11-01)
    Article
    Restricted access - publisher's policy
    A characteristic feature of many relevant real life networks, like the WWW, Internet, transportation and communication networks, or even biological and social networks, is their clustering structure. We discuss in this ...
  • Biological convergence of cancer signatures 

    Pujana, Miguel Angel; Moreno Fernández, Mario Victor; Capellá Frau, Gabriel José; Comellas Padró, Francesc de Paula; Sanjosé, Silvia de; Urruticoechea, Ander; Solé, Xavier; Bonifaci, Núria; López Bigas, Núria; Berenguer, Antoni; Hernández, Pilar; Reina, Oscar; Maxwell, Christopher A.; Aguilar, Helena (2009-09-18)
    Article
    Open Access
    Gene expression profiling has identified cancer prognostic and predictive signatures with superior performance to conventional histopathological or clinical parameters. Consequently, signatures are being incorporated into ...
  • Bumblebees: a multiagent combinatorial optimization algorithm inspired by social insect behaviour 

    Comellas Padró, Francesc de Paula; Martínez Navarro, Jesús (2009-01-20)
    Conference lecture
    Open Access
    This paper introduces a multiagent optimization algorithm inspired by the collective behavior of social insects. In our method, each agent encodes a possible solution of the problem to solve, and evolves in a way similar ...
  • Classifing stars: a comparison between clasical, genetic and neural network algorithms 

    Hernández Pajares, Manuel; Comellas Padró, Francesc de Paula; Monte Moreno, Enrique (F. MURTAGH AND A. HECK, 1992)
    Conference report
    Open Access
  • Cycles in the cycle prefix digraph 

    Comellas Padró, Francesc de Paula; Mitjana Riera, Margarida (2000)
    Article
    Open Access
    Cycle prefix digraphs are a class of Cayley coset graphs with many remarkable properties such as symmetry, large number of nodes for a given degree and diameter, simple shortest path routing, Hamiltonicity, optimal ...
  • Deterministic hierarchical networks 

    Barrière Figueroa, Eulalia; Comellas Padró, Francesc de Paula; Dalfó Simó, Cristina; Fiol Mora, Miquel Àngel (2016)
    Article
    Open Access
    It has been shown that many networks associated with complex systems are small-world (they have both a large local clustering coefficient and a small diameter) and also scale-free (the degrees are distributed according ...
  • Deterministic hierarchical networks 

    Barrière Figueroa, Eulalia; Comellas Padró, Francesc de Paula; Dalfó Simó, Cristina; Fiol Mora, Miquel Àngel (2007-11-20)
    Article
    Open Access
    Recently it has been shown that many networks associated with complex systems are small-world (they have both a large local clustering and a small diameter) and they are also scale-free (the degrees are distributed according ...
  • Deterministic hierarchical networks 

    Barrière Figueroa, Eulalia; Comellas Padró, Francesc de Paula; Dalfó Simó, Cristina (2006)
    Article
    Open Access
    It has recently been shown that many networks associated with complex systems are small-world (they have both a large local clustering and a small average distance and diameter) and they are also scale-free (the degrees ...
  • Disease networks identify specific conditions and pleiotropy influencing multimorbidity in the general population 

    Amell, A.; Roso Llorach, Albert; Palomero, L.; Comellas Padró, Francesc de Paula (Nature, 2018-10-29)
    Article
    Open Access
    Multimorbidity is an emerging topic in public health policy because of its increasing prevalence and socio-economic impact. However, the age- and gender-dependent trends of disease associations at fine resolution, and the ...
  • El espectro del digrafo mariposa 

    Comellas Padró, Francesc de Paula; Fiol Mora, Miquel Àngel; Gimbert, Joan; Mitjana Riera, Margarida (A. Márquez, 2002-09)
    Conference report
    Open Access
    La determinación del espectro de un grafo es de interés por la conexión que los autovalores y sus multiplicidades tienen con invariantes y propiedades topológicas del grafo, como el diámetro, conectividad, expansión, ...
  • Examen final 

    Comellas Padró, Francesc de Paula (Universitat Politècnica de Catalunya, 2018-06-18)
    Exam
    Restricted access to the UPC academic community
  • Examen final 

    Comellas Padró, Francesc de Paula (Universitat Politècnica de Catalunya, 2019-01-17)
    Exam
    Restricted access to the UPC academic community
  • Farey graphs as models for complex networks 

    Comellas Padró, Francesc de Paula (2009-08-01)
    Article
    Open Access
    Farey sequences of irreducible fractions between 0 and 1 can be related to graph constructions known as Farey graphs. These graphs were first introduced by Matula and Kornerup in 1979 and further studied by Colbourn in ...
  • Hedy Lamarr, de Hollywood a la telefonía móvil 

    Comellas Padró, Francesc de Paula; Ozón Górriz, Francisco Javier (Escola Tècnica Superior d'Enginyers de Telecomunicació de Barcelona, 2000)
    Article
    Open Access
  • Matemática discreta 

    Comellas Padró, Francesc de Paula (Edicions UPC, 2001)
    Book
    Restricted access to the UPC academic community
    La matemàtica discreta és la part de les matemàtiques que tracta de les estructures finites i numerables. Aquesta nova branca de les matemàtiques ha rebut un impuls decisiu amb els progressos de la informàtica i de les ...
  • Mean first-passage time for random walks on generalized deterministic recursive trees 

    Comellas Padró, Francesc de Paula; Miralles de la Asunción, Alicia (2010-01-11)
    External research report
    Open Access
  • Modeling complex networks with self-similar outerplanar unclustered graphs 

    Comellas Padró, Francesc de Paula; Miralles de la Asunción, Alicia (2009-01-21)
    Article
    Open Access
    This paper introduces a family of modular, self-similar, small-world graphs with clustering zero. Relevant properties of this family are comparable to those of some networks associated with technological systems with a low ...
  • On the Hierarchical Product of Graphs and the Generalized Binomial Tree 

    Barrière Figueroa, Eulalia; Comellas Padró, Francesc de Paula; Dalfó Simó, Cristina; Fiol Mora, Miquel Àngel (2007-09)
    Article
    Open Access
    In this paper we follow the study of the hierarchical product of graphs, an operation recently introduced in the context of networks. A well-known example of such a product is the binomial tree which is the (hierarchical) ...
  • On the spectra of hypertrees 

    Barrière Figueroa, Eulalia; Comellas Padró, Francesc de Paula; Dalfó Simó, Cristina; Fiol Mora, Miquel Àngel (2007-05)
    Article
    Open Access
    In this paper we study the spectral properties of a family of trees characterized by two main features: they are spanning subgraphs of the hypercube, and their vertices bear a high degree of (connectedness) hierarchy. ...