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Author Oriol Ramos Terrades; Albert Berenguel; Debora Gil edit   pdf
url  openurl
  Title (up) A flexible outlier detector based on a topology given by graph communities Type Miscellaneous
  Year 2020 Publication Arxiv Abbreviated Journal  
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  Abstract Outlier, or anomaly, detection is essential for optimal performance of machine learning methods and statistical predictive models. It is not just a technical step in a data cleaning process but a key topic in many fields such as fraudulent document detection, in medical applications and assisted diagnosis systems or detecting security threats. In contrast to population-based methods, neighborhood based local approaches are simple flexible methods that have the potential to perform well in small sample size unbalanced problems. However, a main concern of local approaches is the impact that the computation of each sample neighborhood has on the method performance. Most approaches use a distance in the feature space to define a single neighborhood that requires careful selection of several parameters. This work presents a local approach based on a local measure of the heterogeneity of sample labels in the feature space considered as a topological manifold. Topology is computed using the communities of a weighted graph codifying mutual nearest neighbors in the feature space. This way, we provide with a set of multiple neighborhoods able to describe the structure of complex spaces without parameter fine tuning. The extensive experiments on real-world data sets show that our approach overall outperforms, both, local and global strategies in multi and single view settings.  
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  Notes IAM; DAG; 600.139; 600.145; 600.140; 600.121 Approved no  
  Call Number Admin @ si @ RBG2020 Serial 3475  
Permanent link to this record
 

 
Author Enric Marti; Antoni Gurgui; Debora Gil; Aura Hernandez-Sabate; Jaume Rocarias; Ferran Poveda edit   pdf
openurl 
  Title (up) ABP on line: Seguimiento, estregas y evaluación en aprendizaje basado en proyectos Type Miscellaneous
  Year 2014 Publication 8th International Congress on University Teaching and Innovation Abbreviated Journal  
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  Address Tarragona; juliol 2014  
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  Area Expedition Conference CIDUI  
  Notes IAM; ADAS; 600.076; 600.063; 600.075 Approved no  
  Call Number Admin @ si @ MGG2014 Serial 2457  
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Author Enric Marti edit  openurl
  Title (up) Aplicació de la metodología d’Aprenentatge basat en Proyectes en l’assignatura de Gràfics per Computador d’enginyeria Informàtica. Balanç de Quatre anys d’experiència Type Miscellaneous
  Year 2008 Publication revista EINES Abbreviated Journal  
  Volume 6 Issue Pages 85-99  
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  Notes IAM Approved no  
  Call Number IAM @ iam @ MAR2008b Serial 1585  
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Author Enric Marti; Ferran Poveda; Antoni Gurgui; Debora Gil edit   pdf
url  isbn
openurl 
  Title (up) Aprendizaje Basado en Proyectos en Ingeniería Informática. Resultados y reflexiones de seis años de experiencia Type Miscellaneous
  Year 2011 Publication Actas del Simposio-Taller JENUI 2011 Abbreviated Journal  
  Volume Issue Pages 1-8  
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  Abstract In this workshop a 6 years experience in Project Based Learning (PBL) in Computer Graphics, Computer Engineering course at the Autonomous University of Barcelona (UAB) is presented. We use a Moodle environment suited to manage the documentation generated in PBL. The course is organized by means of two alternative routes: a classic itinerary of lectures and test-based evaluation and another with PBL. In the PBL itinerary we explain the organization in teamgroups, homework tutoring and monitoring and evaluation guidelines for students. We provide some of the work done by students, and the results of assessment surveys carried out to students during these years. We report the evolution of our PBL itinerary in terms of, both, organization and student surveys.
The workshop aims at discussing about on the advantages and disadvantages of using these active methodologies in technical degrees such as computer engineering, in order to debate about the most suitable way of organizing PBL and assessing students learning rate.
 
  Address Sevilla, Spain  
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  Language spanish Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
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  ISSN ISBN 978-84-694-5440-4 Medium  
  Area Expedition Conference JENUI  
  Notes IAM Approved no  
  Call Number IAM @ iam @ MPG2011 Serial 1584  
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Author Enric Marti; Debora Gil; Marc Vivet; Carme Julia edit  openurl
  Title (up) Aprendizaje Basado en Proyectos en la asignatura de Gráficos por Computador en Ingeniería Informática. Balance de cuatro años de experiencia Type Miscellaneous
  Year 2009 Publication 15th Jornadas de Enseñanza Universitaria de la Informatica Abbreviated Journal  
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  Publisher Place of Publication Barcelona, Spain Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume 1 Series Issue Edition  
  ISSN 978-84-692-2758-9 ISBN Medium  
  Area Expedition Conference JENUI  
  Notes IAM;ADAS Approved no  
  Call Number IAM @ iam @ MGV2009 Serial 1596  
Permanent link to this record
 

 
Author Enric Marti; Debora Gil; Marc Vivet ; Carme Julia edit   pdf
openurl 
  Title (up) Balance de cuatro años de experiencia en la implantación de la metodología de Aprendizaje Basado en Proyectos en la asignatura de Gráficos por Computador en ingeniería Informática Type Miscellaneous
  Year 2008 Publication Actas V Jornadas Internacionales de Innovación Universitaria Abbreviated Journal  
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  Keywords Aprendizaje cooperativo; aprendizaje basado en proyectos; experiencias docentes.  
  Abstract En este trabajo se presentan los resultados de la aplicación de la metodología del aprendizaje cooperativo a la docencia de dos asignaturas de programación en ingeniería informática. ‘Algoritmos y programación’ y ‘Lenguajes de programación’ son dos asignaturas complementarias que se organizan entorno a un proyecto común que engloba los contenidos de ambas asignaturas. En la docencia de una parte muy importante de estas asignaturas, la metodología del aprendizaje cooperativo se ha adaptado a sus características específicas. Como muestra de esta adaptación presentamos dos ejemplos de las actividades desarrolladas dentro de la docencia de estas asignaturas. Después de tres años de aplicación, el análisis a nivel cualitativo y cuantitativo de los resultados muestra que éstos son muy satisfactorios y que la aplicación del método cooperativo ha mejorado de forma considerable el rendimiento de los alumnos en ambas asignaturas.  
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  Notes IAM;ADAS Approved no  
  Call Number IAM @ iam @ MGV2008a Serial 1598  
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Author Enric Marti; Debora Gil; Marc Vivet; Carme Julia edit  openurl
  Title (up) Balance de cuatro años de experiencia en la implantación de la metodología de Aprendizaje Basado en Proyectos en la asignatura de Gráficos por Computador en ingeniería Informática Type Miscellaneous
  Year 2008 Publication VIII Jornadas de Innovación Universitaria Abbreviated Journal  
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  Notes IAM; ADAS Approved no  
  Call Number IAM @ iam @ MGV2008b Serial 1599  
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Author Enric Marti; G.Estape; S.Fernandez edit  openurl
  Title (up) Bluestar: Diseño e implementación de una aplicación para la visualización interactiva en 3D de funciones reales como herramienta de aprendizaje Type Miscellaneous
  Year 2008 Publication V Congreso Internacional Docencia Universitaria e Innovación Abbreviated Journal  
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  Corporate Author Thesis  
  Publisher Place of Publication Lleida Editor  
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  Notes IAM; Approved no  
  Call Number IAM @ iam @ MEF2008 Serial 1590  
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Author Enric Marti; S.Fernandez; G.Estape edit  openurl
  Title (up) BlueStar: implementació d’una aplicació per a la visualització 3D de funcions reals, com a eina d’aprenentatge Type Miscellaneous
  Year 2007 Publication IV Jornades d’Innovació Docent UAB Abbreviated Journal  
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  Corporate Author Thesis  
  Publisher Place of Publication Bellaterra (Spain) Editor  
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  Notes IAM; Approved no  
  Call Number IAM @ iam @ MFE2007 Serial 1591  
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Author Juan Borrego-Carazo; Carles Sanchez; David Castells; Jordi Carrabina; Debora Gil edit  doi
openurl 
  Title (up) BronchoPose: an analysis of data and model configuration for vision-based bronchoscopy pose estimation Type Miscellaneous
  Year 2022 Publication Arxiv Abbreviated Journal  
  Volume Issue Pages  
  Keywords Videobronchoscopy guiding; Deep learning; Architecture optimization; Datasets; Standardized evaluation framework; Pose estimation  
  Abstract Vision-based bronchoscopy (VB) models require the registration of the virtual lung model with the frames from the video bronchoscopy to provide effective guidance during the biopsy. The registration can be achieved by either tracking the position and orientation of the bronchoscopy camera or by calibrating its deviation from the pose (position and orientation) simulated in the virtual lung model. Recent advances in neural networks and temporal image processing have provided new opportunities for guided bronchoscopy. However, such progress has been hindered by the lack of comparative experimental conditions.
In the present paper, we share a novel synthetic dataset allowing for a fair comparison of methods. Moreover, this paper investigates several neural network architectures for the learning of temporal information at different levels of subject personalization. In order to improve orientation measurement, we also present a standardized comparison framework and a novel metric for camera orientation learning. Results on the dataset show that the proposed metric and architectures, as well as the standardized conditions, provide notable improvements to current state-of-the-art camera pose estimation in video bronchoscopy.
 
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  Notes IAM; Approved no  
  Call Number Admin @ si @ Serial 3702  
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