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Listar por autor "Villegas Santamaría, Mauricio"

Mostrando ítems 1-12 de 12

A Set of Benchmarks for Handwritten Text Recognition on Historical Documents

Sánchez Peiró, Joan Andreu; Romero, Verónica; Toselli, Alejandro Héctor; Villegas, Mauricio; Vidal, Enrique (Elsevier, 2019-10)

[EN] Handwritten Text Recognition is a important requirement in order to make visible the contents of the myriads of historical documents residing in public and private archives and libraries world wide. Automatic Handwritten ...
Contributions to High-Dimensional Pattern Recognition

Villegas Santamaría, Mauricio (Universitat Politècnica de València, 2011-05-20)

This thesis gathers some contributions to statistical pattern recognition particularly targeted at problems in which the feature vectors are high-dimensional. Three pattern recognition scenarios are addressed, namely pattern ...
Exploiting Existing Modern Transcripts for Historical Handwritten Text Recognition

Villegas, Mauricio; Toselli, Alejandro Héctor; Romero Gómez, Verónica; Vidal, Enrique (IEEE, 2016)

[EN] Existing transcripts for historic manuscripts are a very valuable resource for training models useful for automatic recognition, aided transcription, and/or indexing of the remaining untranscribed parts of these ...
Face Analysis and Recognition in Mobile Devices

Villegas Santamaría, Mauricio (Universitat Politècnica de València, 2011-11-14)

Face recognition is currently a very active research topic due to the great variety of applications it can offer. Moreover, nowadays is very common for people to have mobile devices such as PDAs or mobile phones which have ...
General Overview of ImageCLEF at the CLEF 2015 Labs

Villegas Santamaría, Mauricio; Muller, H.; Gilbert, A.; Piras, L.; Wang, J.; Mikolajczyk, K.; de Herrera, A.G.S.; Bromuri, S.; Amin, M.A.; Mohammed, M.K.; Acar, B.; Uskudarli, S.; Marvasti, N.B.; Aldana, J.F.; Roldan Garcia,M.M. (Springer Verlag (Germany): LNCS, 2015-11-20)

This paper presents an overview of the ImageCLEF 2015 evaluation campaign, an event that was organized as part of the CLEF labs 2015. ImageCLEF is an ongoing initiative that promotes the evaluation of technologies for ...
ImageCLEF 2014: Overview and analysis of the results

Caputo, Barbara; Müller, Henning; Martinez-Gomez, Jesus; Villegas Santamaría, Mauricio; Acar, Burak; Patricia, Novi; Marvasti, Neda; Üsküdar, Suzan; Paredes Palacios, Roberto; Cazorla, Miguel; García Varea, Ismael; Morell, Vicente (Springer Verlag (Germany), 2014)

This paper presents an overview of the ImageCLEF 2014 evaluation lab. Since its first edition in 2003, ImageCLEF has become one of the key initiatives promoting the benchmark evaluation of algorithms for the annotation and ...
On improving robustness of LDA and SRDA by using tangent vectors

Villegas Santamaría, Mauricio; Paredes Palacios, Roberto (Elsevier, 2013-07)

[EN] In the area of pattern recognition, it is common for few training samples to be available with respect to the dimensionality of the representation space; this is known as the curse of dimensionality. This problem can ...
On the Derivational Entropy of Left-to-Right Probabilistic Finite-State Automata and Hidden Markov Models

Sánchez Peiró, Joan Andreu; Rocha, M. A.; Romero, Verónica; Villegas, Mauricio (MIT Press, 2018)

[EN] Probabilistic finite-state automata are a formalism that is widely used in many problems of automatic speech recognition and natural language processing. Probabilistic finite-state automata are closely related to other ...
On the modification of binarization algorithms to retain grayscale information for handwritten text recognition

Villegas, Mauricio; Romero Gómez, Verónica; Sánchez Peiró, Joan Andreu (Springer International Publishing, 2015-06-09)

[EN] The amount of digitized legacy documents has been rising over the last years due mainly to the increasing number of on-line digital libraries publishing this kind of documents. The vast majority of them remain waiting ...
Overview of the ImageCLEF 2014 Scalable Concept Image Annotation Task

Villegas Santamaría, Mauricio; Paredes Palacios, Roberto (CEUR Workshop Proceedings, 2014)

[EN] The ImageCLEF 2014 Scalable Concept Image Annotation task was the third edition of a challenge aimed at developing more scalable image annotation systems. Unlike traditional image annotation challenges, which rely on ...
Relevant clouds: leveraging relevance feedback to build tag clouds for image search

Leiva Torres, Luis Alberto; Villegas Santamaría, Mauricio; Paredes Palacios, Roberto (Springer Verlag (Germany), 2013)

Previous work in the literature has been aimed at exploring tag clouds to improve image search and potentially increase retrieval performance. However, to date none has considered the idea of building tag clouds derived ...
Score Fusion by Maximizing the Area under the ROC Curve

Villegas Santamaría, Mauricio; Paredes Palacios, Roberto (Springer Verlag (Germany), 2009)

Information fusion is currently a very active research topic aimed at improving the performance of biometric systems. This paper proposes a novel method for optimizing the parameters of a score fusion model based on ...