|
Records |
Links |
|
Author |
Oriol Pujol; David Masip |
![goto web page (via DOI) doi](img/doi.gif)
|
|
Title |
Geometry-Based Ensembles: Toward a Structural Characterization of the Classification Boundary |
Type |
Journal Article |
|
Year |
2009 |
Publication |
IEEE Transactions on Pattern Analysis and Machine Intelligence |
Abbreviated Journal |
TPAMI |
|
|
Volume |
31 |
Issue |
6 |
Pages |
1140–1146 |
|
|
Keywords |
|
|
|
Abstract |
This article introduces a novel binary discriminative learning technique based on the approximation of the non-linear decision boundary by a piece-wise linear smooth additive model. The decision border is geometrically defined by means of the characterizing boundary points – points that belong to the optimal boundary under a certain notion of robustness. Based on these points, a set of locally robust linear classifiers is defined and assembled by means of a Tikhonov regularized optimization procedure in an additive model to create a final lambda-smooth decision rule. As a result, a very simple and robust classifier with a strong geometrical meaning and non-linear behavior is obtained. The simplicity of the method allows its extension to cope with some of nowadays machine learning challenges, such as online learning, large scale learning or parallelization, with linear computational complexity. We validate our approach on the UCI database. Finally, we apply our technique in online and large scale scenarios, and in six real life computer vision and pattern recognition problems: gender recognition, intravascular ultrasound tissue classification, speed traffic sign detection, Chagas' disease severity detection, clef classification and action recognition using a 3D accelerometer data. The results are promising and this paper opens a line of research that deserves further attention |
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes ![sorted by Notes field, descending order (down)](img/sort_desc.gif) |
OR;HuPBA;MV |
Approved |
no |
|
|
Call Number |
BCNPCL @ bcnpcl @ PuM2009 |
Serial |
1252 |
|
Permanent link to this record |
|
|
|
|
Author |
Xavier Baro |
![find record details (via OpenURL) openurl](img/xref.gif)
|
|
Title |
Probabilistic Darwin Machines: A New Approach to Develop Evolutionary Object Detection |
Type |
Book Whole |
|
Year |
2009 |
Publication |
PhD Thesis, Universitat Autonoma de Barcelona-CVC |
Abbreviated Journal |
|
|
|
Volume |
|
Issue |
|
Pages |
|
|
|
Keywords |
|
|
|
Abstract |
Ever since computers were invented, we have wondered whether they might perform some of the human quotidian tasks. One of the most studied and still nowadays less understood problem is the capacity to learn from our experiences and how we generalize the knowledge that we acquire. One of that unaware tasks for the persons and that more interest is awakening in different scientific areas since the beginning, is the one that is known as pattern recognition. The creation of models that represent the world that surrounds us, help us for recognizing objects in our environment, to predict situations, to identify behaviors... All this information allows us to adapt ourselves and to interact with our environment. The capacity of adaptation of individuals to their environment has been related to the amount of patterns that are capable of identifying.
This thesis faces the pattern recognition problem from a Computer Vision point of view, taking one of the most paradigmatic and extended approaches to object detection as starting point. After studying this approach, two weak points are identified: The first makes reference to the description of the objects, and the second is a limitation of the learning algorithm, which hampers the utilization of best descriptors.
In order to address the learning limitations, we introduce evolutionary computation techniques to the classical object detection approach.
After testing the classical evolutionary approaches, such as genetic algorithms, we develop a new learning algorithm based on Probabilistic Darwin Machines, which better adapts to the learning problem. Once the learning limitation is avoided, we introduce a new feature set, which maintains the benefits of the classical feature set, adding the ability to describe non localities. This combination of evolutionary learning algorithm and features is tested on different public data sets, outperforming the results obtained by the classical approach. |
|
|
Address |
Barcelona (Spain) |
|
|
Corporate Author |
|
Thesis |
Ph.D. thesis |
|
|
Publisher |
Ediciones Graficas Rey |
Place of Publication |
|
Editor |
Jordi Vitria |
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes ![sorted by Notes field, descending order (down)](img/sort_desc.gif) |
OR;HuPBA;MV |
Approved |
no |
|
|
Call Number |
BCNPCL @ bcnpcl @ Bar2009 |
Serial |
1262 |
|
Permanent link to this record |
|
|
|
|
Author |
Laura Igual; Xavier Baro |
![download PDF file pdf](img/file_PDF.gif)
|
|
Title |
Experiencia de aprendizaje de programación basada en proyectos. Simposio-Taller Estrategias y herramientas para el aprendizaje y la evaluación |
Type |
Miscellaneous |
|
Year |
2013 |
Publication |
Simposio-Taller Estrategias y herramientas para el aprendizaje y la evaluación, de las XIX Jornadas sobre la Enseñanza Universitaria de la Informática |
Abbreviated Journal |
|
|
|
Volume |
|
Issue |
|
Pages |
|
|
|
Keywords |
|
|
|
Abstract |
|
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
JENUI |
|
|
Notes ![sorted by Notes field, descending order (down)](img/sort_desc.gif) |
OR;HuPBA;MV |
Approved |
no |
|
|
Call Number |
Admin @ si @ IgB2013 |
Serial |
2257 |
|
Permanent link to this record |
|
|
|
|
Author |
Xavier Baro; David Masip; Elena Planas; Julia Minguillon |
![find record details (via OpenURL) openurl](img/xref.gif)
|
|
Title |
PeLP: Plataforma para el Aprendizaje de Lenguajes de Programación |
Type |
Miscellaneous |
|
Year |
2013 |
Publication |
XV Jornadas de Enseñanza Universitaria de la Informatica |
Abbreviated Journal |
|
|
|
Volume |
|
Issue |
|
Pages |
|
|
|
Keywords |
|
|
|
Abstract |
|
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
JENUI |
|
|
Notes ![sorted by Notes field, descending order (down)](img/sort_desc.gif) |
OR;HuPBA;MV |
Approved |
no |
|
|
Call Number |
Admin @ si @ BMP2013 |
Serial |
2237 |
|
Permanent link to this record |
|
|
|
|
Author |
Miquel Ferrer; Robert Benavente; Ernest Valveny; J. Garcia; Agata Lapedriza; Gemma Sanchez |
![find record details (via OpenURL) openurl](img/xref.gif)
|
|
Title |
Aprendizaje Cooperativo Aplicado a la Docencia de las Asignaturas de Programacion en Ingenieria Informatica |
Type |
Miscellaneous |
|
Year |
2008 |
Publication |
Octava Jornada sobre Aprendizaje Cooperativo, 41–46 |
Abbreviated Journal |
|
|
|
Volume |
|
Issue |
|
Pages |
|
|
|
Keywords |
|
|
|
Abstract |
|
|
|
Address |
Lleida (Spain). |
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes ![sorted by Notes field, descending order (down)](img/sort_desc.gif) |
OR;DAG;CIC;MV |
Approved |
no |
|
|
Call Number |
BCNPCL @ bcnpcl @ FBV2008 |
Serial |
955 |
|
Permanent link to this record |
|
|
|
|
Author |
Robert Benavente; Ernest Valveny; Jaume Garcia; Agata Lapedriza; Miquel Ferrer; Gemma Sanchez |
![find record details (via OpenURL) openurl](img/xref.gif)
|
|
Title |
Una experiencia de adaptacion al EEES de las asignaturas de programacion en Ingenieria Informatica |
Type |
Miscellaneous |
|
Year |
2008 |
Publication |
V Congreso Iberoamericano de Docencia Universitaria, pp. 213–216 |
Abbreviated Journal |
|
|
|
Volume |
|
Issue |
|
Pages |
|
|
|
Keywords |
|
|
|
Abstract |
|
|
|
Address |
Valencia |
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes ![sorted by Notes field, descending order (down)](img/sort_desc.gif) |
OR;DAG;CIC;MV |
Approved |
no |
|
|
Call Number |
BCNPCL @ bcnpcl @ BVG2008 |
Serial |
1031 |
|
Permanent link to this record |
|
|
|
|
Author |
Maria Vanrell; Jordi Vitria |
![find record details (via OpenURL) openurl](img/xref.gif)
|
|
Title |
Mathematical Morphology, Granulometries and Texture Perception. |
Type |
Miscellaneous |
|
Year |
1993 |
Publication |
SPIE International Symposium on Optical Instrumentation and Applied Science (Conference on image Algebra and Morphological image Processing IV). |
Abbreviated Journal |
|
|
|
Volume |
|
Issue |
|
Pages |
|
|
|
Keywords |
|
|
|
Abstract |
|
|
|
Address |
San Diego; CA; USA |
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes ![sorted by Notes field, descending order (down)](img/sort_desc.gif) |
OR;CIC;MV |
Approved |
no |
|
|
Call Number |
BCNPCL @ bcnpcl @ VaV1993 |
Serial |
178 |
|
Permanent link to this record |
|
|
|
|
Author |
X. Binefa; Jordi Vitria; Maria Vanrell |
![find record details (via OpenURL) openurl](img/xref.gif)
|
|
Title |
Reconstruccion tridimensional de imagenes Microscopicas. |
Type |
Miscellaneous |
|
Year |
1992 |
Publication |
V Simposium Nacional de Reconocimiento de Formas y Analisis de Imagenes |
Abbreviated Journal |
|
|
|
Volume |
|
Issue |
|
Pages |
|
|
|
Keywords |
|
|
|
Abstract |
|
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes ![sorted by Notes field, descending order (down)](img/sort_desc.gif) |
OR;CIC;MV |
Approved |
no |
|
|
Call Number |
BCNPCL @ bcnpcl @ BVV1992b |
Serial |
255 |
|
Permanent link to this record |
|
|
|
|
Author |
Maria Vanrell; Jordi Vitria |
![find record details (via OpenURL) openurl](img/xref.gif)
|
|
Title |
Optimal 3x3 decomposable disks for morphological transformations |
Type |
Journal |
|
Year |
1997 |
Publication |
Image and Vision Computing, 15(2): 845–854 |
Abbreviated Journal |
|
|
|
Volume |
|
Issue |
|
Pages |
|
|
|
Keywords |
|
|
|
Abstract |
|
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes ![sorted by Notes field, descending order (down)](img/sort_desc.gif) |
OR;CIC;MV |
Approved |
no |
|
|
Call Number |
BCNPCL @ bcnpcl @ VaV1997c |
Serial |
543 |
|
Permanent link to this record |
|
|
|
|
Author |
Santiago Segui; Laura Igual; Fernando Vilariño; Petia Radeva; Carolina Malagelada; Fernando Azpiroz; Jordi Vitria |
![download PDF file pdf](img/file_PDF.gif)
![find book details (via ISBN) isbn](img/isbn.gif)
|
|
Title |
Diagnostic System for Intestinal Motility Disfunctions Using Video Capsule Endoscopy |
Type |
Book Chapter |
|
Year |
2008 |
Publication |
Computer Vision Systems. 6th International |
Abbreviated Journal |
|
|
|
Volume |
5008 |
Issue |
|
Pages |
251–260 |
|
|
Keywords |
|
|
|
Abstract |
Wireless Video Capsule Endoscopy is a clinical technique consisting of the analysis of images from the intestine which are pro- vided by an ingestible device with a camera attached to it. In this paper we propose an automatic system to diagnose severe intestinal motility disfunctions using the video endoscopy data. The system is based on the application of computer vision techniques within a machine learn- ing framework in order to obtain the characterization of diverse motil- ity events from video sequences. We present experimental results that demonstrate the effectiveness of the proposed system and compare them with the ground-truth provided by the gastroenterologists. |
|
|
Address |
Santorini (Greece) |
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
Springer-Verlag |
Place of Publication |
Berlin Heidelberg |
Editor |
A. Gasteratos, M. Vincze, and J.K. Tsotsos |
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
LNCS |
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
978-3-540-79546-9 |
Medium |
|
|
|
Area |
800 |
Expedition |
|
Conference |
ICVS |
|
|
Notes ![sorted by Notes field, descending order (down)](img/sort_desc.gif) |
OR; MV; MILAB; SIAI |
Approved |
no |
|
|
Call Number |
BCNPCL @ bcnpcl @ SIV2008; IAM @ iam @ SIV2008 |
Serial |
962 |
|
Permanent link to this record |
|
|
|
|
Author |
Bogdan Raducanu; Jordi Vitria |
![find record details (via OpenURL) openurl](img/xref.gif)
|
|
Title |
Online Learning for Human-Robot Interaction |
Type |
Conference Article |
|
Year |
2007 |
Publication |
IEEE Conference on Computer Vision and Pattern Recognition Workshop on |
Abbreviated Journal |
|
|
|
Volume |
|
Issue |
|
Pages |
|
|
|
Keywords |
|
|
|
Abstract |
|
|
|
Address |
Minneapolis (USA) |
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
CVPR |
|
|
Notes ![sorted by Notes field, descending order (down)](img/sort_desc.gif) |
OR; MV |
Approved |
no |
|
|
Call Number |
BCNPCL @ bcnpcl @ RaV2007a |
Serial |
791 |
|
Permanent link to this record |
|
|
|
|
Author |
Elvina Motard; Bogdan Raducanu; Viviane Cadenat; Jordi Vitria |
![find record details (via OpenURL) openurl](img/xref.gif)
|
|
Title |
Incremental On-Line Topological Map Learning for A Visual Homing Application |
Type |
Conference Article |
|
Year |
2007 |
Publication |
IEEE International Conference on Robotics and Automation |
Abbreviated Journal |
|
|
|
Volume |
|
Issue |
|
Pages |
2049–2054 |
|
|
Keywords |
|
|
|
Abstract |
|
|
|
Address |
Roma (Italy) |
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
ICRA |
|
|
Notes ![sorted by Notes field, descending order (down)](img/sort_desc.gif) |
OR; MV |
Approved |
no |
|
|
Call Number |
BCNPCL @ bcnpcl @ MRC2007 |
Serial |
793 |
|
Permanent link to this record |
|
|
|
|
Author |
Agata Lapedriza; David Masip; Jordi Vitria |
![find record details (via OpenURL) openurl](img/xref.gif)
|
|
Title |
A Hierarchical Approach for Multi-task Logistic Regression |
Type |
Conference Article |
|
Year |
2007 |
Publication |
3rd Iberian Conference on Pattern Recognition and Image Analysis |
Abbreviated Journal |
|
|
|
Volume |
4478 |
Issue |
|
Pages |
258–265 |
|
|
Keywords |
|
|
|
Abstract |
|
|
|
Address |
Girona (Spain) |
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
J. Marti et al. |
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
LNCS |
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
IbPRIA |
|
|
Notes ![sorted by Notes field, descending order (down)](img/sort_desc.gif) |
OR; MV |
Approved |
no |
|
|
Call Number |
BCNPCL @ bcnpcl @ LMV2007a |
Serial |
902 |
|
Permanent link to this record |
|
|
|
|
Author |
David Masip; Agata Lapedriza; Jordi Vitria |
![find record details (via OpenURL) openurl](img/xref.gif)
|
|
Title |
Multitask Learning: An Application to Incremental Face Recognition |
Type |
Conference Article |
|
Year |
2008 |
Publication |
3rd International Conference on Computer Vision Theory and Applications |
Abbreviated Journal |
|
|
|
Volume |
1 |
Issue |
|
Pages |
585–590 |
|
|
Keywords |
|
|
|
Abstract |
|
|
|
Address |
Madeira (Portugal) |
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
VISAPP |
|
|
Notes ![sorted by Notes field, descending order (down)](img/sort_desc.gif) |
OR; MV |
Approved |
no |
|
|
Call Number |
BCNPCL @ bcnpcl @ MLV2008 |
Serial |
979 |
|
Permanent link to this record |
|
|
|
|
Author |
Agata Lapedriza; David Masip; Jordi Vitria |
![find record details (via OpenURL) openurl](img/xref.gif)
|
|
Title |
Subject Recognition Using a New Approach for Feature Extraction |
Type |
Conference Article |
|
Year |
2008 |
Publication |
3rd International Conference on Computer Vision Theory and Applications |
Abbreviated Journal |
|
|
|
Volume |
2 |
Issue |
|
Pages |
61–66 |
|
|
Keywords |
|
|
|
Abstract |
|
|
|
Address |
Madeira (Portugal) |
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
VISAPP |
|
|
Notes ![sorted by Notes field, descending order (down)](img/sort_desc.gif) |
OR; MV |
Approved |
no |
|
|
Call Number |
BCNPCL @ bcnpcl @ LMV2008a |
Serial |
980 |
|
Permanent link to this record |