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3. Deep Layout Extraction Applied to Historical Postcards

Author

García, Bruno, Moreno, Belén, Vélez, José F., Sánchez, Ángel, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Ferrández Vicente, José Manuel, editor, Álvarez-Sánchez, José Ramón, editor, de la Paz López, Félix, editor, and Adeli, Hojjat, editor

Published
2022
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6. A Pix2Pix Architecture for Complete Offline Handwritten Text Normalization.

Author

Barreiro-Garrido, Alvaro, Ruiz-Parrado, Victoria, Moreno, A. Belen, and Velez, Jose F.

Subjects
DEEP learning, TEXT recognition, GENERATIVE adversarial networks, HEURISTIC algorithms, ARCHITECTURAL design
Abstract

In the realm of offline handwritten text recognition, numerous normalization algorithms have been developed over the years to serve as preprocessing steps prior to applying automatic recognition models to handwritten text scanned images. These algorithms have demonstrated effectiveness in enhancing the overall performance of recognition architectures. However, many of these methods rely heavily on heuristic strategies that are not seamlessly integrated with the recognition architecture itself. This paper introduces the use of a Pix2Pix trainable model, a specific type of conditional generative adversarial network, as the method to normalize handwritten text images. Also, this algorithm can be seamlessly integrated as the initial stage of any deep learning architecture designed for handwritten recognition tasks. All of this facilitates training the normalization and recognition components as a unified whole, while still maintaining some interpretability of each module. Our proposed normalization approach learns from a blend of heuristic transformations applied to text images, aiming to mitigate the impact of intra-personal handwriting variability among different writers. As a result, it achieves slope and slant normalizations, alongside other conventional preprocessing objectives, such as normalizing the size of text ascenders and descenders. We will demonstrate that the proposed architecture replicates, and in certain cases surpasses, the results of a widely used heuristic algorithm across two metrics and when integrated as the first step of a deep recognition architecture. [ABSTRACT FROM AUTHOR]

Published
2024
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8. Robust Detection of Outdoor Urban Advertising Panels in Static Images

Author

Morera, Ángel, Sánchez, Ángel, Sappa, Ángel D., Vélez, José F., Barbosa, Simone Diniz Junqueira, Editorial Board Member, Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Kotenko, Igor, Editorial Board Member, Yuan, Junsong, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, De La Prieta, Fernando, editor, González-Briones, Alfonso, editor, Pawleski, Pawel, editor, Calvaresi, Davide, editor, Del Val, Elena, editor, Lopes, Fernando, editor, Julian, Vicente, editor, Osaba, Eneko, editor, and Sánchez-Iborra, Ramón, editor

Published
2019
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9. Automatic Image-Based Waste Classification

Author

Ruiz, Victoria, Sánchez, Ángel, Vélez, José F., Raducanu, Bogdan, Hutchison, David, Editorial Board Member, Kanade, Takeo, Editorial Board Member, Kittler, Josef, Editorial Board Member, Kleinberg, Jon M., Editorial Board Member, Mattern, Friedemann, Editorial Board Member, Mitchell, John C., Editorial Board Member, Naor, Moni, Editorial Board Member, Pandu Rangan, C., Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Terzopoulos, Demetri, Editorial Board Member, Tygar, Doug, Editorial Board Member, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Ferrández Vicente, José Manuel, editor, Álvarez-Sánchez, José Ramón, editor, de la Paz López, Félix, editor, Toledo Moreo, Javier, editor, and Adeli, Hojjat, editor

Published
2019
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10. Symbiotic Autonomous Systems with Consciousness Using Digital Twins

Author

Fernández, Felipe, Sánchez, Ángel, Vélez, José F., Moreno, A. Belén, Hutchison, David, Editorial Board Member, Kanade, Takeo, Editorial Board Member, Kittler, Josef, Editorial Board Member, Kleinberg, Jon M., Editorial Board Member, Mattern, Friedemann, Editorial Board Member, Mitchell, John C., Editorial Board Member, Naor, Moni, Editorial Board Member, Pandu Rangan, C., Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Terzopoulos, Demetri, Editorial Board Member, Tygar, Doug, Editorial Board Member, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Ferrández Vicente, José Manuel, editor, Álvarez-Sánchez, José Ramón, editor, de la Paz López, Félix, editor, Toledo Moreo, Javier, editor, and Adeli, Hojjat, editor

Published
2019
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12. Widespread alternative splicing dysregulation occurs presymptomatically in CAG expansion spinocerebellar ataxias

Author

Shorrock, Hannah K, primary, Lennon, Claudia D, additional, Aliyeva, Asmer, additional, Davey, Emily E, additional, DeMeo, Cristina C, additional, Pritchard, Caroline E, additional, Planco, Lori, additional, Velez, Jose M, additional, Mascorro-Huamancaja, Alexandra, additional, Shin, Damian S, additional, Cleary, John D, additional, and Berglund, J Andrew, additional

Published
2023
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14. Situation Awareness Cognitive Agent for Vehicle Geolocation in Tunnels

Author

Fernández, Felipe, Sánchez, Ángel, Suárez, Adrián, Vélez, José F., Barbosa, Simone Diniz Junqueira, Series Editor, Chen, Phoebe, Series Editor, Filipe, Joaquim, Series Editor, Kotenko, Igor, Series Editor, Sivalingam, Krishna M., Series Editor, Washio, Takashi, Series Editor, Yuan, Junsong, Series Editor, Zhou, Lizhu, Series Editor, Bajo, Javier, editor, Corchado, Juan M., editor, Navarro Martínez, Elena María, editor, Osaba Icedo, Eneko, editor, Mathieu, Philippe, editor, Hoffa-Dąbrowska, Patrycja, editor, del Val, Elena, editor, Giroux, Sylvain, editor, Castro, Antonio J.M., editor, Sánchez-Pi, Nayat, editor, Julián, Vicente, editor, Silveira, Ricardo Azambuja, editor, Fernández, Alberto, editor, Unland, Rainer, editor, and Fuentes-Fernández, Rubén, editor

Published
2018
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15. Automatic Anonymization of Printed-Text Document Images

Author

Sánchez, Ángel, Vélez, José F., Sánchez, Javier, Moreno, A. Belén, Hutchison, David, Series Editor, Kanade, Takeo, Series Editor, Kittler, Josef, Series Editor, Kleinberg, Jon M., Series Editor, Mattern, Friedemann, Series Editor, Mitchell, John C., Series Editor, Naor, Moni, Series Editor, Pandu Rangan, C., Series Editor, Steffen, Bernhard, Series Editor, Terzopoulos, Demetri, Series Editor, Tygar, Doug, Series Editor, Weikum, Gerhard, Series Editor, Mansouri, Alamin, editor, El Moataz, Abderrahim, editor, Nouboud, Fathallah, editor, and Mammass, Driss, editor

Published
2018
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17. Widespread alternative splicing dysregulation occurs presymptomatically in CAG expansion spinocerebellar ataxias.

Author

Shorrock, Hannah K, Lennon, Claudia D, Aliyeva, Asmer, Davey, Emily E, DeMeo, Cristina C, Pritchard, Caroline E, Planco, Lori, Velez, Jose M, Mascorro-Huamancaja, Alexandra, Shin, Damian S, Cleary, John D, and Berglund, J Andrew

Subjects
ALTERNATIVE RNA splicing, SPINOCEREBELLAR ataxia, GENETIC transcription regulation, RNA-binding proteins, GENETIC engineering, GENE expression
Abstract

The spinocerebellar ataxias (SCAs) are a group of dominantly inherited neurodegenerative diseases, several of which are caused by CAG expansion mutations (SCAs 1, 2, 3, 6, 7 and 12) and more broadly belong to the large family of over 40 microsatellite expansion diseases. While dysregulation of alternative splicing is a well defined driver of disease pathogenesis across several microsatellite diseases, the contribution of alternative splicing in CAG expansion SCAs is poorly understood. Furthermore, despite extensive studies on differential gene expression, there remains a gap in our understanding of presymptomatic transcriptomic drivers of disease. We sought to address these knowledge gaps through a comprehensive study of 29 publicly available RNA-sequencing datasets. We identified that dysregulation of alternative splicing is widespread across CAG expansion mouse models of SCAs 1, 3 and 7. These changes were detected presymptomatically, persisted throughout disease progression, were repeat length-dependent, and were present in brain regions implicated in SCA pathogenesis including the cerebellum, pons and medulla. Across disease progression, changes in alternative splicing occurred in genes that function in pathways and processes known to be impaired in SCAs, such as ion channels, synaptic signalling, transcriptional regulation and the cytoskeleton. We validated several key alternative splicing events with known functional consequences, including Trpc3 exon 9 and Kcnma1 exon 23b, in the Atxn1154Q/2Q mouse model. Finally, we demonstrated that alternative splicing dysregulation is responsive to therapeutic intervention in CAG expansion SCAs with Atxn1 targeting antisense oligonucleotide rescuing key splicing events. Taken together, these data demonstrate that widespread presymptomatic dysregulation of alternative splicing in CAG expansion SCAs may contribute to disease onset, early neuronal dysfunction and may represent novel biomarkers across this devastating group of neurodegenerative disorders. [ABSTRACT FROM AUTHOR]

Published
2024
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21. A Deep Learning Approach to Handwritten Number Recognition

Author

Ruiz, Victoria, Gonzalez de Lena, Maria T., Sueiras, Jorge, Sanchez, Angel, Velez, Jose F., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Ferrández Vicente, José Manuel, editor, Álvarez-Sánchez, José Ramón, editor, de la Paz López, Félix, editor, Toledo Moreo, Javier, editor, and Adeli, Hojjat, editor

Published
2017
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22. A Cognitive Architecture Framework for Critical Situation Awareness Systems

Author

Fernandez, Felipe, Sanchez, Angel, Velez, Jose F., Moreno, Belen, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Ferrández Vicente, José Manuel, editor, Álvarez-Sánchez, José Ramón, editor, de la Paz López, Félix, editor, Toledo Moreo, Javier, editor, and Adeli, Hojjat, editor

Published
2017
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24. Non-destructive DNA extraction methods for entomophagous insects with emphasis on biological control

Author

Suaste-Dzul, Alba P., Rodriguez-Velez, Jose Manuel, Rodriguez-Velez, Beatriz, Arredondo-Bernal, Hugo Cesar, and Gallou, Adrien

Subjects
DNA sequencing -- Methods, Insects -- Genetic aspects, Oxidases, Insect pests, EDTA, Biological pest control, Cytochrome oxidase, Biological insect control, DNA, Biological sciences
Abstract

One of the major challenges in molecular analysis of arthropods, especially for natural enemies of insect pests, is the intact preservation of the specimens to be integrated into entomological collections. However, most of the DNA extraction protocols involve maceration of the tissue, avoiding the preservation of the original specimen. Two general methods were adapted into non-destructive DNA extraction protocols, DNeasy[R] Blood & Tissue Kit (A) and the [CaCl.sub.2] lysis buffer method (B), while the potential of the method with the alkaline lysis buffer (HotSHOT; C) was evaluated for the first time on insect specimens. These protocols were assessed for the recovery of DNA from Ceraeochrysa valida, Tamarixia radiata, and Hippodamia convergens. Photographical records showed that morphological features of the specimens were preserved after the DNA extraction process. COI fragments were successfully amplified with method A (100%), B (77%), and C (88%), respectively. We conclude that these nondestructive DNA extraction methods avoid the destruction of tissue and preserve the original insects and their morphological characteristics for future reference. Key words: non-destructive DNA extraction, cytochrome oxidase I, biological control, entomophagous insects. L'un des defis majeurs de l'analyse moleculaire des arthropodes, en particulier pour les ennemis naturels des insectes ravageurs, est la preservation intacte des specimens a integrer dans les collections entomologiques. Cependant, la plupart des protocoles d'extraction d'ADN impliquent une maceration des tissus, ce qui ne permet pas la conservation de l'echantillon original. Deux protocoles classiques ont ete adaptees en protocoles d'extraction d'ADN non destructifs, le kit DNeasy[R] Blood & Tissue (A) et la methode avec un tampon de lyse au [CaCl.sub.2] (B), tandis que le potentiel du protocole avec un tampon de lyse alcaline (HotSHOT; C) a ete evalue pour la premiere fois sur des echantillons d'insectes. Ces protocoles ont ete evalues pour la recuperation d'ADN de Ceraeochrysa valida, Tamarixia radiata et Hippodamia convergens. Les cliches photographiques ont montre que les caracteristiques morphologiques des specimens ont ete preservees apres le processus d'extraction de l'ADN. Le fragment de COI a ete amplifie avec succes avec le protocole A (100 %), B (77 %) et C (88 %), respectivement. Nous concluons que ces methodes d'extraction d'ADN non destructives evitent la destruction des tissus et preservent les insectes originaux et leurs caracteristiques morphologiques pour consultation ulterieure. Mots-cles : extraction d'ADN non-destructive, cytochrome oxidase I, lutte biologique, insectes entomophages., Introduction Molecular techniques are becoming increasingly important in insect research, including taxonomic, population genetics, and evolutionary studies (Lagisz et al. 2010). The identification of arthropod pests and species with emphasis [...]

Published
2019
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26. On the Influence of Illumination Quality in 2D Facial Recognition

Author

Sánchez, Ángel, Vélez, José F., Moreno, A. Belén, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Ferrández Vicente, José Manuel, editor, Álvarez-Sánchez, José Ramón, editor, de la Paz López, Félix, editor, Toledo-Moreo, Fco. Javier, editor, and Adeli, Hojjat, editor

Published
2015
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30. Automatic Detection of Facial Landmarks in Images with Different Sources of Variations

Author

Sánchez, Ángel, Moreno, A. Belén, Vélez, José F., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Ferrández Vicente, José Manuel, editor, Álvarez Sánchez, José Ramón, editor, de la Paz López, Félix, editor, and Toledo Moreo, Fco. Javier, editor

Published
2013
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32. Forecasting in a Multi-skill Call Centre

Author

Millán-Ruiz, David, Pacheco, Jorge, Hidalgo, J. Ignacio, Vélez, José L., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Goebel, Randy, editor, Siekmann, Jörg, editor, Wahlster, Wolfgang, editor, Rutkowski, Leszek, editor, Scherer, Rafał, editor, Tadeusiewicz, Ryszard, editor, Zadeh, Lotfi A., editor, and Zurada, Jacek M., editor

Published
2010
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40. PROTEGT: protector de vasos contra sustancias tóxicas

Author

Barrera Bolivar, Miguel Angel, Plaza Perez, Laura Valentina, Castro Roa, Daniel Felipe, and Castelblanco Velez, Jose Miguel

Abstract

El presente proyecto contiene la propuesta acerca del plan de mercadeo digital para la marca PROTGT, teniendo como producto a un protector de vasos multifuncional en forma de moña, que reduce el riesgo al cual se encuentran expuestas las mujeres al salir y disfrutar de una bebida. Este trabajo se desarrolla con base en investigaciones previas realizadas a lo largo de la materia de PADE 1, enfocado en la situación actual de la marca, su competencia, su público objetivo, el desarrollo de la estrategia de marketing, sus objetivos, resultados esperados y presupuesto.

Published
2022
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44. SPONTANEOUS BILATERAL NON-RESOLVING PNEUMOTHORAX AS A COMPLICATION OF SEVERE SARS-COV-2 INFECTION

Author

GARCIA-PUEBLA, JUAN, primary, HERNANDEZ-MOYA, KYOMARA, additional, NIEVES-ORTIZ, ARNALDO, additional, PADILLA RODRIGUEZ, KIMBERLY, additional, FARINACCI VILARO, MARLENE, additional, RODRIGUEZ VELEZ, JOSE, additional, MARTINEZ, JONATHAN, additional, FERNANDEZ, RICARDO, additional, ADORNO-FONTANEZ, JOSE, additional, and RODRIGUEZ-ORTIZ, PABLO, additional

Published
2021
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50. Estudio de los Procesos de Transporte (Advección y Dispersión) de los sólidos suspendidos totales en la bahía interna de Buenaventura

Author

Ramirez Callejas, Carlos Alberto, Garcia Velez, Jose Luis, Barbosa Hurtado, Jennifer Paola, and Giraldo Idarraga, Claudia Patricia

Subjects
Transporte de sedimentos en suspensión, Modelación, Calidad de agua, Bahía de Buenaventura, Sólidos suspendidos totales
Abstract

La bahía de Buenaventura concentra elementos fundamentales de la economía del país (puertos, producción maderera y piscícola, etc.); es un estuario receptor de contaminantes provenientes de fuentes naturales y antrópicas que afectan la calidad del agua, poniendo en riesgo los ecosistemas, la salud humana y las actividades socioeconómicas. La evaluación de estos impactos ambientales resulta fundamental para la formulación de planes de manejo ambiental que contribuyan a su recuperación y conservación. Este proyecto tuvo como finalidad el análisis de la variabilidad espacial y temporal de las concentraciones de los sólidos suspendidos totales (SST) en la Bahía, considerando diferentes condiciones oceanográficas, aportes de tributarios y descargas de agua residual doméstica (ARD) provenientes del distrito de Buenaventura. Para esto se realizó una revisión de información y se efectuó una campaña de medición de SST en nueve (9) puntos de muestreo representativos del estuario. A partir de la información recolectada se llevó a cabo la implementación del modelo MOHID, el cual se calibró y validó con base en los registros de campo disponibles (CVC y Universidad del Valle, principalmente). Se plantearon cuatro escenarios según las proyecciones y acciones que pretenden realizarse en el Distrito de Buenaventura, contenidas en el Plan Maestro de Acueducto y Alcantarillado y el Plan de Saneamiento y Manejo de Vertimientos (Vallecaucana de Aguas - Unión Temporal Aquapozos, 2017), así: (1) año 2016, alternativa con seis sistemas de alcantarillado independientes, (2) año 2047, alternativa con seis sistemas de alcantarillado independientes, (3) año 2047, alternativa con dos sistemas de alcantarillado independientes, y (4) año 2047, sistema de alcantarillado con dos plantas de tratamiento de agua residual doméstica y un emisario submarino. En los tres primeros las ARD se vierten a la bahía sin ningún tipo de tratamiento y en el cuarto se vierten después de tratamiento primario. Los resultados muestran que las mayores concentraciones se presentan durante las bajamares vivas y muertas. Los resultados de las simulaciones realizadas para los escenarios al año 2047 realizando descargas en seis o dos zonas distintas en los sectores de la zona sur de la isla Cascajal y en el estero San Antonio, indican que la permanencia de las aguas en estas zonas es prolongada y la pluma de contaminación se desplaza hacia el interior del estero, lo que representa un riesgo para la población asentada en sus alrededores, las actividades productivas, comerciales e industriales y para la preservación de los ecosistemas acuáticos.En el escenario 4 se evaluó el desplazamiento de las partículas por medio del módulo Lagrangiano de MOHID, el cual indica que existe una corriente residual neta en dirección hacia afuera de la Bahía; no obstante, alguna fracción del vertimiento realizado a través del emisario submarino se desplaza hacia el sector de la isla Cascajal, afectando la calidad del agua en este sector, por lo cual se recomienda investigar la alternativa de llevar el emisario hasta afuera de la bahía.

Published
2019

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