Resultados globales: 21 registros encontrados en 0.04 segundos.
Artículos, Encontrados 14 registros
Contribuciones a jornadas y congresos, Encontrados 5 registros
Libros y colecciones, Encontrados 2 registros
Artículos Encontrados 14 registros  1 - 10siguiente  ir al registro:
1.
10 p, 3.7 MB Low-level spatiochromatic grouping for saliency estimation / Murray, Naila (Xerox Research Centre Europe (France)) ; Vanrell i Martorell, Maria Isabel (Centre de Visió per Computador (Bellaterra, Catalunya)) ; Otazu Porter, Xavier (Centre de Visió per Computador (Bellaterra, Catalunya)) ; Parraga, Carlos Alejandro (Centre de Visió per Computador (Bellaterra, Catalunya))
We propose a saliency model termed SIM (saliency by induction mechanisms), which is based on a low-level spatiochromatic model that has successfully predicted chromatic induction phenomena. In so doing, we hypothesize that the low-level visual mechanisms that enhance or suppress image detail are also responsible for making some image regions more salient. [...]
2013 - 10.1109/TPAMI.2013.108
IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol. 35, Issue 11 (November 2013) , p. 2810-2816  
2.
12 p, 2.6 MB Nucleation and growth of gold nanoparticles in the presence of different surfactants. A dissipative particle dynamics study / Suárez-López, Rosa (Universitat Autònoma de Barcelona. Departament de Química) ; Puntes, Víctor (Institut Català de Nanociència i Nanotecnologia) ; Bastús, Neus G. (Institut Català de Nanociència i Nanotecnologia) ; Hervés, Carmen (Institut Català de Nanociència i Nanotecnologia) ; Jaime Cardiel, Carlos (Universitat Autònoma de Barcelona. Departament de Química)
Nanoparticles (NPs) show promising applications in biomedicine, catalysis, and energy harvesting. This applicability relies on controlling the material's features at the nanometer scale. Surfactants, a unique class of surface-active molecules, have a remarkable ability to tune NPs activity; provide specific functions, avoid their aggregation, and create stable colloidal solutions. [...]
2022 - 10.1038/s41598-022-18155-2
Scientific reports, Vol. 12 (August 2022) , art. 13926  
3.
15 p, 1.7 MB Flexible categorization in perceptual decision making / Prat-Ortega, Genís (Centre de Recerca Matemàtica) ; Wimmer, Klaus (Centre de Recerca Matemàtica) ; Roxin, Alex (Centre de Recerca Matemàtica) ; de la Rocha, Jaime (Institut d'Investigacions Biomèdiques August Pi i Sunyer)
Perceptual decisions rely on accumulating sensory evidence. This computation has been studied using either drift diffusion models or neurobiological network models exhibiting winner-take-all attractor dynamics. [...]
2021 - 10.1038/s41467-021-21501-z
Nature communications, Vol. 12 (February 2021) , art. 1283  
4.
9 p, 1.4 MB Germline de novo mutation rates on exons versus introns in humans / Rodriguez-Galindo, Miguel (Centre de Regulació Genòmica) ; Casillas Viladerrams, Sònia (Universitat Autònoma de Barcelona. Departament de Genètica i de Microbiologia) ; Weghorn, Donate (Universitat Pompeu Fabra) ; Barbadilla Prados, Antonio (Universitat Autònoma de Barcelona. Institut de Biotecnologia i de Biomedicina "Vicent Villar Palasí")
A main assumption of molecular population genetics is that genomic mutation rate does not depend on sequence function. Challenging this assumption, a recent study has found a reduction in the mutation rate in exons compared to introns in somatic cells, ascribed to an enhanced exonic mismatch repair system activity. [...]
2020 - 10.1038/s41467-020-17162-z
Nature communications, Vol. 11 (July 2020) , art. 3304  
5.
18 p, 2.7 MB Empirical model for short-time prediction of COVID-19 spreading / Català, Martí (Institut Germans Trias i Pujol. Hospital Universitari Germans Trias i Pujol) ; Alonso Muñoz, Sergio (Universitat Politècnica de Catalunya. Departament de Física) ; Alvarez-Lacalle, Enrique (Universitat Politècnica de Catalunya. Departament de Física) ; López, Daniel (Universitat Politècnica de Catalunya. Departament de Física) ; Cardona, Pere-Joan (Institut Germans Trias i Pujol) ; Prats, Clara (Institut Germans Trias i Pujol) ; Universitat Autònoma de Barcelona
The appearance and fast spreading of Covid-19 took the international community by surprise. Collaboration between researchers, public health workers, and politicians has been established to deal with the epidemic. [...]
2020 - 10.1371/journal.pcbi.1008431
PLoS computational biology, Vol. 16 Núm. 12 (december 2020) , p. e1008431  
6.
25 p, 6.0 MB Computational Surface Modelling of Ices and Minerals of Interstellar Interest-Insights and Perspectives / Rimola, Albert (Universitat Autònoma de Barcelona. Departament de Química) ; Ferrero, Stefano (Universitat Autònoma de Barcelona. Departament de Química) ; Germain, Aurèle (Università degli Studi di Torino. Dipartimento di Chimica) ; Corno, Marta (Università degli Studi di Torino. Dipartimento di Chimica) ; Ugliengo, Piero (Università di Torino. Dipartimento di Chimica)
The universe is molecularly rich, comprising from the simplest molecule (H2) to complex organic molecules (e. g. , CH3CHO and NH2CHO), some of which of biological relevance (e. g. , amino acids). This chemical richness is intimately linked to the different physical phases forming Solar-like planetary systems, in which at each phase, molecules of increasing complexity form. [...]
2021 - 10.3390/min11010026
Minerals, Vol. 11, Num. 1 (January 2021) , art. 26  
7.
3 p, 523.7 KB Editorial : Evolving Virtual and Computational Paleontology / Pandolfi, Luca (University of Florence. Department of Earth Sciences) ; Raia, Pasquale (University of Naples "Federico II". Department of Earth Sciences) ; Fortuny, Josep (Institut Català de Paleontologia Miquel Crusafont) ; Rook, Lorenzo (University of Florence. Department of Earth Sciences)
2020 - 10.3389/feart.2020.591813
Frontiers in Earth Science, Vol. 8 (October 2020) , art. 591813  
8.
3 p, 116.9 KB Editorial : Integrating Visual System Mechanisms, Computational Models and Algorithms/Technologies / Spitzer, Hedva (Tel Aviv University. School of Electrical Engineering) ; Otazu Porter, Xavier (Universitat Autònoma de Barcelona. Departament de Ciències de la Computació) ; Hel-Or, Hagit (University of Haifa. Department of Computer Science)
2020 - 10.3389/fbioe.2019.00483
Frontiers in Bioengineering and Biotechnology, Vol. 7 (January 2020) , art. 483  
9.
30 p, 2.8 MB Enhancing Confusion Entropy (CEN) for binary and multiclass classification / Delgado de la Torre, Rosario (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Nuñez Gonzalez, Jose David (Universidad del País Vasco. Departamento de Matemáticas)
Different performance measures are used to assess the behaviour, and to carry out the comparison, of classifiers in Machine Learning. Many measures have been defined on the literature, and among them, a measure inspired by Shannon's entropy named the Confusion Entropy (CEN). [...]
2019 - 10.1371/journal.pone.0210264
PloS one, Vol. 1, Issue 1 (January 2019) , p. e0210264  
10.
14 p, 3.9 MB Systems analysis reveals complex biological processes during virus infection fate decisions / Argilaguet, Jordi 1977- (Universitat Pompeu Fabra. Departament de Ciències Experimentals i de la Salut) ; Pedragosa, Mireia (Universitat Pompeu Fabra. Departament de Ciències Experimentals i de la Salut) ; Esteve-Codina, Anna (Universitat Pompeu Fabra) ; Riera, G. (Universitat Pompeu Fabra. Departament de Ciències Experimentals i de la Salut) ; Vidal Barba, Enric (Institut de Recerca i Tecnologia Agroalimentàries. Centre de Recerca en Sanitat Animal) ; Peligero-Cruz, C. (Weizmann Institute of Science (Israel). Department of Immunology) ; Casella, Valentina (Universitat Pompeu Fabra. Departament de Ciències Experimentals i de la Salut) ; Andreu Martínez, David (Universitat Pompeu Fabra. Departament de Ciències Experimentals i de la Salut) ; Kaisho, T. (Osaka University. Laboratory for Immune Regulation. World Premier International Research Center Initiative.) ; Bocharov, Gennady (Sechenov First Moscow State Medical University) ; Ludewig, B. (Institute for Immunobiology.) ; Heath, Simon (Universitat Pompeu Fabra) ; Meyerhans, A. (Institució Catalana de Recerca i Estudis Avançats)
The processes and mechanisms of virus infection fate decisions that are the result of a dynamic virus-immune system interaction with either an efficient effector response and virus elimination or an alleviated immune response and chronic infection are poorly understood. [...]
2019 - 10.1101/gr.241372.118
Genome research, Vol. 29 Núm. 6 (2019) , p. 907-919  

Artículos : Encontrados 14 registros   1 - 10siguiente  ir al registro:
Contribuciones a jornadas y congresos Encontrados 5 registros  
1.
4 p, 161.8 KB Modeling human stability and change in organizations / Kahl, Cara (Hamburg University of Technology) ; Meyer, Matthias (Hamburg University of Technology)
This extended abstract describes current work in progress on so-called micro-foundations of organizational routines. These are individual-level human processes assumed responsible for the emergence of routines. [...]
2014
Social Simulation Conference. Bellaterra, Cerdanyola del Valles, 1a : 2014  
2.
6 p, 170.8 KB Rise, fall and abandonment in the zambezi plateau: an agent-based model using the canonical theory / Bogle, Gary (George Mason University)
The Zambezi plateau region in Southern Africa has seen the rise and fall other several polities of different levels of complexity for many centuries before the arrival of Europeans and the beginning of the region's written history. [...]
2014
Social Simulation Conference. Bellaterra, Cerdanyola del Valles, 1a : 2014  
3.
4 p, 172.0 KB A Markov chain approach to ABM calibration / Fabretti, Annalisa (II Università degli studi di Roma)
Agent based model are nowadays widely used, however the lack of general methods and rules for their calibration still prevent to exploit completely their potentiality. Rarely such a kind of models can be studied analytically, more often they are studied by using simulation. [...]
2014
Social Simulation Conference. Bellaterra, Cerdanyola del Valles, 1a : 2014  
4.
3 p, 182.2 KB Organizational routines: an agent based model replication / Hauke, Jonas (Hamburg University of Technology)
This extended abstract focuses on organizational routines as an emergent phenomenon of individual behavior within collectives. Micro foundations related to dynamics of performing and remembering organizational routines are based on psychological constructs such as procedural, declarative and transactive memory. [...]
2014
Social Simulation Conference. Bellaterra, Cerdanyola del Valles, 1a : 2014  
5.
4 p, 207.9 KB Sensitivity analysis for agent-based models : a low complexity test-case / Broeke, Guus ten (Wageningen University) ; Voorn, George van (Wageningen University) ; Ligtenberg, Arend (Wageningen University)
Methodologies for sensitivity analysis are considered to be of great importance for analyzing agent-based models (ABMs), even more because calibration and validation of ABMs often prove problematic. Different methodologies for sensitivity analysis may help to understand ABM dynamics and (thus) aid in the calibration and validation of ABMs. [...]
2014
Social Simulation Conference. Bellaterra, Cerdanyola del Valles, 1a : 2014  

Libros y colecciones Encontrados 2 registros  
1.
Study of the Nonelementary Singular Points and the Dynamics Near the Infinity in Predator-Prey Systems / Diz-Pita, Érika (Universidade de Santiago de Compostela) ; Llibre, Jaume (Universitat Autònoma de Barcelona) ; Otero-Espinar, M. Victoria (Universidade de Santiago de Compostela)
In this chapter, we present the results obtained in two predator-prey systems, paying special attention to the dynamics near the infinity and the nonelementary singular points. First, the desingularization technique known as blow-up technique allows one to study any type of singularities of analytic systems in dimension two even if they are not elementary. [...]
Cham : Springer, 2023 (Nonlinear Systems and Complexity ; 38) - 10.1007/978-3-031-42689-6_5
Computational and Mathematical Models in Biology, 2023, p. 103-128  
2.
9 p, 800.2 KB Saliency estimation using a non-parametric low-level vision model / Murray, Naila (Centre de Visió per Computador (Bellaterra, Catalunya)) ; Vanrell i Martorell, Maria Isabel (Universitat Autònoma de Barcelona. Departament de Ciències de la Computació) ; Otazu Porter, Xavier (Universitat Autònoma de Barcelona. Departament de Ciències de la Computació) ; Parraga, Carlos Alejandro (Universitat Autònoma de Barcelona. Departament de Ciències de la Computació)
Many successful models for predicting attention in a scene involve three main steps: convolution with a set of filters, a center-surround mechanism and spatial pooling to construct a saliency map. However, integrating spatial information and justifying the choice of various parameter values remain open problems. [...]
Colorado Springs : IEEE, 2011 - 10.1109/CVPR.2011.5995506
IEEE Conference on Computer Vision and Pattern Recognition, CVPR, 2011, p. 433-440  

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