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Author (up) Maria Salamo; Inmaculada Rodriguez; Maite Lopez; Anna Puig; Simone Balocco; Mariona Taule
Title Recurso docente para la atención de la diversidad en el aula mediante la predicción de notas Type Journal
Year 2016 Publication ReVision Abbreviated Journal
Volume 9 Issue 1 Pages
Keywords Aprendizaje automatico; Sistema de prediccion de notas; Herramienta docente
Abstract Desde la implantación del Espacio Europeo de Educación Superior (EEES) en los diferentes grados, se ha puesto de manifiesto la necesidad de utilizar diversos mecanismos que permitan tratar la diversidad en el aula, evaluando automáticamente y proporcionando una retroalimentación rápida tanto al alumnado como al profesorado sobre la evolución de los alumnos en una asignatura. En este artículo se presenta la evaluación de la exactitud en las predicciones de GRADEFORESEER, un recurso docente para la predicción de notas basado en técnicas de aprendizaje automático que permite evaluar la evolución del alumnado y estimar su nota final al terminar el curso. Este recurso se ha complementado con una interfaz de usuario para el profesorado que puede ser usada en diferentes plataformas software (sistemas operativos) y en cualquier asignatura de un grado en la que se utilice evaluación continuada. Además de la descripción del recurso, este artículo presenta los resultados obtenidos al aplicar el sistema de predicción en cuatro asignaturas de disciplinas distintas: Programación I (PI), Diseño de Software (DSW) del grado de Ingeniería Informática, Tecnologías de la Información y la Comunicación (TIC) del grado de Lingüística y la asignatura Fundamentos de Tecnología (FDT) del grado de Información y Documentación, todas ellas impartidas en la Universidad de Barcelona.

La capacidad predictiva se ha evaluado de forma binaria (aprueba o no) y según un criterio de rango (suspenso, aprobado, notable o sobresaliente), obteniendo mejores predicciones en los resultados evaluados de forma binaria.
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Notes MILAB; Approved no
Call Number Admin @ si @ SRL2016 Serial 2820
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Author (up) Maria Vanrell; Ramon Baldrich; Anna Salvatella; Robert Benavente; Francesc Tous
Title Induction operators for a computational colour-texture representation Type Journal
Year 2004 Publication Computer Vision and Image Understanding, 94(1–3):92–114, ISSN: 1077–3142 (IF: 0.651) Abbreviated Journal
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Notes CIC Approved no
Call Number CAT @ cat @ VBS2004 Serial 453
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Author (up) Mariella Dimiccoli
Title Fundamentals of cone regression Type Journal
Year 2016 Publication Journal of Statistics Surveys Abbreviated Journal
Volume 10 Issue Pages 53-99
Keywords cone regression; linear complementarity problems; proximal operators.
Abstract Cone regression is a particular case of quadratic programming that minimizes a weighted sum of squared residuals under a set of linear inequality constraints. Several important statistical problems such as isotonic, concave regression or ANOVA under partial orderings, just to name a few, can be considered as particular instances of the cone regression problem. Given its relevance in Statistics, this paper aims to address the fundamentals of cone regression from a theoretical and practical point of view. Several formulations of the cone regression problem are considered and, focusing on the particular case of concave regression as an example, several algorithms are analyzed and compared both qualitatively and quantitatively through numerical simulations. Several improvements to enhance numerical stability and bound the computational cost are proposed. For each analyzed algorithm, the pseudo-code and its corresponding code in Matlab are provided. The results from this study demonstrate that the choice of the optimization approach strongly impacts the numerical performances. It is also shown that methods are not currently available to solve efficiently cone regression problems with large dimension (more than many thousands of points). We suggest further research to fill this gap by exploiting and adapting classical multi-scale strategy to compute an approximate solution.
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ISSN 1935-7516 ISBN Medium
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Notes MILAB; Approved no
Call Number Admin @ si @Dim2016a Serial 2783
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Author (up) Matthias S. Keil
Title Smooth Gradient Representations as a Unifying Account of Chevreul’s Illusion, Mach Bands, and a Variant of the Ehrenstein Disk Type Journal
Year 2006 Publication Neural Computation Abbreviated Journal NEURALCOMPUT
Volume 18 Issue 4 Pages 871–903
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Notes Approved no
Call Number Admin @ si @ Kei2006 Serial 633
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Author (up) Matthias S. Keil; Agata Lapedriza; David Masip; Jordi Vitria
Title Preferred Spatial Frequencies for Human Face Processing Are Associated with Optimal Class Discrimination in the Machine Type Journal
Year 2008 Publication PLoS ONE 3(7):e2590, DOI:10.1371/journal.pone.0002590 Abbreviated Journal
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Notes OR;MV Approved no
Call Number BCNPCL @ bcnpcl @ KLM2008 Serial 978
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Author (up) Matthias S. Keil; Gabriel Cristobal
Title Separating the chaff from the wheat: possible origins of the oblique effect Type Journal
Year 2000 Publication Journal of the Optical Society of America A – Optics, Image Science, and Vision, 17(4): 697–710 (IF: 1.481) Abbreviated Journal
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Notes Approved no
Call Number Admin @ si @ KeC2000 Serial 630
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Author (up) Matthias S. Keil; Gabriel Cristobal; Heiko Neumann
Title Gradient representation and perception in the early visual system – A novel account of Mach band formation Type Journal
Year 2006 Publication Vision Research, 46(17): 2659–2674 Abbreviated Journal VR
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Notes Approved no
Call Number Admin @ si @ KCN2006 Serial 649
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Author (up) Matthias S. Keil; Gabriel Cristobal; Thorsten Hansen; Heiko Neumann
Title Recovering real-world images from single-scale boundaries with a novel filling-in architecture Type Journal
Year 2005 Publication Neural Networks 18(10):1319–1331 (IF: 1.665) Abbreviated Journal
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Notes Approved no
Call Number Admin @ si @ KCH2005 Serial 576
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Author (up) Matthias S. Keil; Jordi Vitria
Title Does the brain generate representations of smooth brightness gradients? A novel account for Mach bands, Chevreul’s illusion, and a variant of the Ehrenstein disk Type Journal
Year 2005 Publication Perception 34:209–210 Suppl. S (IF: 1.391) Abbreviated Journal
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Notes OR;MV Approved no
Call Number BCNPCL @ bcnpcl @ KeV2005a Serial 608
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Author (up) Matthias S. Keil; Jordi Vitria
Title Pushing it to the Limit: Adaptation with Dynamically Switching Gain Control Type Journal
Year 2007 Publication EURASIP Journal on Advances in Signal Processing, Vol 2007, Article ID 51684, 10 pages, doi: 10.1155/2007/51684 Abbreviated Journal
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Notes OR;MV Approved no
Call Number BCNPCL @ bcnpcl @ KeV2007 Serial 794
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Author (up) Mikhail Mozerov; Ariel Amato; Xavier Roca; Jordi Gonzalez
Title Trajectory Occlusion Handling with Multiple View Distance Minimisation Clustering Type Journal
Year 2008 Publication Optical Engineering, vol. 47(04)04702, DOI:10.11781.2909665 Abbreviated Journal
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Notes ISE Approved no
Call Number ISE @ ise @ MAR2008c Serial 970
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Author (up) Mikhail Mozerov; Ariel Amato; Xavier Roca; Jordi Gonzalez
Title Solving the Multi Object Occlusion Problem in a Multiple Camera Tracking System Type Journal
Year 2009 Publication Pattern Recognition and Image Analysis Abbreviated Journal
Volume 19 Issue 1 Pages 165-171
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Abstract An efficient method to overcome adverse effects of occlusion upon object tracking is presented. The method is based on matching paths of objects in time and solves a complex occlusion-caused problem of merging separate segments of the same path.
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ISSN 1054-6618 ISBN Medium
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Notes ISE Approved no
Call Number ISE @ ise @ MAR2009a Serial 1160
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Author (up) Mikhail Mozerov; V. Kober
Title Impulse Noise Removal with Gradient Adaptive Neighborhoods Type Journal
Year 2006 Publication Optical Engineering, 45: 67003 Abbreviated Journal
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Notes ISE Approved no
Call Number ISE @ ise @ MoK2006 Serial 676
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Author (up) Mikhail Mozerov; V. Kober; I.A. Ovseyevich
Title Robust Dynamic Programming Algorithm for Motion Detection and Estimation Type Journal
Year 2007 Publication Abbreviated Journal
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Notes ISE Approved no
Call Number ISE @ ise @ MKO2007 Serial 810
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Author (up) Mireia Sole; Joan Blanco; Debora Gil; G. Fonseka; Richard Frodsham; Francesca Vidal; Zaida Sarrate
Title Noves perspectives en l estudi de la territorialitat cromosomica de cel·lules germinals masculines: estudis tridimensionals Type Journal
Year 2017 Publication Biologia de la Reproduccio Abbreviated Journal JBR
Volume 15 Issue Pages 73-78
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Abstract In somatic cells, chromosomes occupy specific nuclear regions called chromosome territories which are involved in the
maintenance and regulation of the genome. Preliminary data in male germ cells also suggest the importance of chromosome
territoriality in cell functionality. Nevertheless, the specific characteristics of testicular tissue (presence of different
cell types with different morphological characteristics, in different stages of development and with different ploidy)
makes difficult to achieve conclusive results. In this study we have developed a methodology to approach the threedimensional
study of all chromosome territories in male germ cells from C57BL/6J mice (Mus musculus). The method
includes the following steps: i) Optimized cell fixation to obtain an optimal preservation of the three-dimensionality cell
morphology, ii) Chromosome identification by FISH (Chromoprobe Multiprobe® OctoChrome™ Murine System; Cytocell)
and confocal microscopy (TCS-SP5, Leica Microsystems), iii) Cell type identification by immunofluorescence
iv) Image analysis using Matlab scripts, v) Numerical data extraction related to chromosome features, chromosome
radial position and chromosome relative position. This methodology allows the unequivocally identification and the
analysis of the chromosome territories of all spermatogenic stages. Results will provide information about the features
that determine chromosomal position, preferred associations between chromosomes, and the relationship between chromosome
positioning and genome regulation.
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ISSN ISBN 978-84-697-3767-5 Medium
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Notes IAM; 600.096; 600.145 Approved no
Call Number Admin @ si @ SBG2017c Serial 2961
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