Exploració per tema "Mutual information"

Ara es mostren els items 1-13 de 13

    • A framework for joint design of pilot sequence and linear precoder 

      Pastore, Adriano; Joham, Michael; Rodríguez Fonollosa, Javier (2016-09-01)
      Article
      Accés obert
      Most performance measures of pilot-assisted multiple-input multiple-output systems are functions of the linear precoder and the pilot sequence. A framework for the optimization of these two parameters is proposed, based ...

    • A post non-linear source separation algorithm for bounded magnitude sources and its application to ISFETs 

      Bermejo Sánchez, Sergi (2015-01-19)
      Article
      Accés restringit per política de l'editorial
      The response of ion-sensitive field-effect transistors (ISFETs) can be seriously affected in mixed-ion solutions by different interfering ions. As has been demonstrated, this problem can be addressed using nonlinear ...

    • Action selection for single-camera SLAM 

      Vidal Calleja, Teresa; Sanfeliu Cortés, Alberto; Andrade-Cetto, Juan (2010)
      Article
      Accés obert
      A method for evaluating, at video rate, the quality of actions for a single camera while mapping unknown indoor environments is presented. The strategy maximizes mutual information between measurements and states to help ...

    • Channel dependent mutual information in index modulations 

      Henarejos Hernández, Pol; Pérez Neira, Ana Isabel; Tato, Anxo; Mosquera Nartallo, Carlos (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Mutual Information is the metric that is used to perform link adaptation, which allows to achieve rates near capacity. The computation of adaptive transmission modes is achieved by employing the mapping between the Signal ...

    • Clustering assessment in weighted networks 

      Arratia Quesada, Argimiro Alejandro; Renedo Mirambell, Martí (2021-06-18)
      Article
      Accés obert
      We provide a systematic approach to validate the results of clustering methods on weighted networks, in particular for the cases where the existence of a community structure is unknown. Our validation of clustering comprises ...

    • El bagging en casos no supervisats: Implementació a GESCONDA per algoritmes de clustering 

      Gibert, Karina; Oliva, Luis; Pinyol, Isaac; Sànchez-Marrè, Miquel (2006-07)
      Report de recerca
      Accés obert
      Els algorismes de clustering per entorns no supervisats que es basen en una inicialització aleatòria (p. Ex.: tria inicial de llavors en l’algorisme Kmeans), presenten un problema a l’hora d’obtenir solucions fiables. Una ...

    • Evaluation of Respiratory Muscles Activity by means of Cross Mutual Information Function at Different Levels of Ventilatory Effort 

      Alonso López, Joan Francesc; Mañanas Villanueva, Miguel Ángel; Hoyer, Dirk; Bruce, Eugene N.; Zbigniew L., Topor (Institute of Electrical and Electronics Engineers, 2007-09)
      Article
      Accés obert
      Analysis of respiratory muscles activity is an effective technique for the study of pulmonary diseases such as obstructive sleep apnea syndrome (OSAS). Respiratory diseases, especially those associated with changes in the ...

    • How many parameters can be maximally estimated from a set of measurements? 

      Konings, Alexandra G.; McColl, Kaighin Alexander; Piles Guillem, Maria; Entekhabi, Dara (2015-05-01)
      Article
      Accés obert
      Remote sensing algorithms often invert multiple measurements simultaneously to retrieve a group of geophysical parameters. In order to create a robust retrieval algorithm, it is necessary to ensure that there are more ...

    • Improvements in the registration of multimodal medical imaging : application to intensity inhomogeneity and partial volume corrections 

      Jiménez González, Xavier (Universitat Politècnica de Catalunya, 2016-12-23)
      Tesi
      Accés obert
      Alignment or registration of medical images has a relevant role on clinical diagnostic and treatment decisions as well as in research settings. With the advent of new technologies for multimodal imaging, robust registration ...

    • Mutual information maximization for a wireless energy harvesting node considering the circuitry power consumption 

      Gregori, Maria; Pascual Iserte, Antonio; Payaró Llisterri, Miquel (2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      An energy harvesting transmitter operating in a point-to-point link through a discrete time fading channel is considered in this paper. Assuming non-causal knowledge of the harvested energy and channel state, the resource ...

    • Mutual information measures applied to EEG signals for sleepiness characterization 

      Melia, Umberto Sergio Pio; Guaita, Marc; Vallverdú Ferrer, Montserrat; Embid, Cristina; Vilaseca, I; Salamero, Manuel; Santamaria, Joan (2015-03-01)
      Article
      Accés obert
      Excessive daytime sleepiness (EDS) is one of the main symptoms of several sleep related disorders with a great impact on the patient lives. While many studies have been carried out in order to assess daytime sleepiness, ...

    • Neural network aided computation of mutual information for adaptation of spatial modulation 

      Tato, Anxo; Mosquera Nartallo, Carlos; Henarejos, Pol; Pérez Neira, Ana Isabel (2020-05-01)
      Article
      Accés obert
      Index Modulations, in the form of Spatial Modulation or Polarized Modulation, are gaining traction for both satellite and terrestrial next generation communication systems. Adaptive Spatial Modulation based links are needed ...

    • Neuronal transmission of subthreshold periodic stimuli via symbolic spike patterns 

      Masoliver Vila, Maria; Masoller Alonso, Cristina (2020-05-05)
      Article
      Accés obert
      We study how sensory neurons detect and transmit a weak external stimulus. We use the FitzHugh–Nagumo model to simulate the neuronal activity. We consider a sub-threshold stimulus, i.e., the stimulus is below the threshold ...