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Displaying 1-32 out of 32 total
Civic action brokering platforms: facilitating local engagement with ACTion Alexandria
Found in: Proceedings of the 17th ACM conference on Computer supported cooperative work & social computing (CSCW '14)
By Derek L. Hansen, Jes A. Koepfler, John C. Bertot, Paul T. Jaeger, Tracy Viselli
Issue Date:February 2014
pp. 1308-1322
Local communities are turning to new online systems to help motivate and coordinate local volunteerism and problem solving. Inspired by the American barn raising tradition, ACTion Alexandria is designed to help local residents and service-oriented organiza...
How to see values in social computing: methods for studying values dimensions
Found in: Proceedings of the 17th ACM conference on Computer supported cooperative work & social computing (CSCW '14)
By Jes A. Koepfler, Katie Shilton, Kenneth R. Fleischmann
Issue Date:February 2014
pp. 426-435
Human values play an important role in shaping the design and use of information technologies. Research on values in social computing is challenged by disagreement about indicators and objects of study as researchers distribute their focus across contexts ...
Easy, fast, and energy-efficient object detection on heterogeneous on-chip architectures
Found in: ACM Transactions on Architecture and Code Optimization (TACO)
By Ehsan Totoni, María Jesús Garzarán, Mert Dikmen
Issue Date:December 2013
pp. 1-25
We optimize a visual object detection application (that uses Vision Video Library kernels) and show that OpenCL is a unified programming paradigm that can provide high performance when running on the Ivy Bridge heterogeneous on-chip architecture. We evalua...
Virtual congresses for pharmaceutical learning
Found in: Proceedings of the First International Conference on Technological Ecosystem for Enhancing Multiculturality (TEEM '13)
By Cristina Maderuelo Martín, Jonás Samuel Pérez Blanco, José Manuel Armenteros del Olmo, Ana Martín Suárez, Aránzazu Zarzuelo Castañeda, Hinojal Zazo Gómez, José Martínez Lanao, Juan Cruz Benito, Ma del Carmen Gutiérrez Millán, Ma José de Jesús Valle
Issue Date:November 2013
pp. 73-77
The aim of the present work was to organize the presentation of the assignment from different subjects in the Pharmacy Degree as communications at a scientific congress. The objective was to carry out face to face activities without the need for students a...
Medical training for echo-guided infiltration of Botulinum toxin by an echograph simulator
Found in: Proceedings of the First International Conference on Technological Ecosystem for Enhancing Multiculturality (TEEM '13)
By Fco. Javier Serrano Rodríguez, Javier Nieto Blasco, Pablo Alonso Hernández, Belén Curto Diego, Felipe Hernández Zaballos, Jesús A. Alaejos Fuentes, Jose A. Santos Sánchez, Juan A. Juanes, Vidal Moreno Rodilla
Issue Date:November 2013
pp. 15-19
Taking self-learning or e-learning as a model and by the application of new technologies, we introduce the software application of an echograph simulator, a very useful tool to nurture knowledge and training of the health professionals, integrating the ima...
Aligning intergenerational communication patterns and rhythms in the age of social media
Found in: Proceedings of the 2013 Chilean Conference on Human - Computer Interaction (ChileCHI '13)
By Diego Muñoz, Francisco Gutierrez, Jesús Favela, Mónica Tentori, Raymundo Cornejo, Sergio F. Ochoa
Issue Date:November 2013
pp. 66-71
Social media is increasingly being used to support interaction among family members. However, differences in media preferences and interaction patterns challenge intergenerational communication. It impacts negatively on the physical and mental health of ol...
On the usefulness of object tracking techniques in performance analysis
Found in: Proceedings of SC13: International Conference for High Performance Computing, Networking, Storage and Analysis (SC '13)
By Germán Llort, Jesús Labarta, Juan González, Harald Servat, Judit Giménez
Issue Date:November 2013
pp. 1-11
Understanding the behavior of a parallel application is crucial if we are to tune it to achieve its maximum performance. Yet the behavior the application exhibits may change over time and depend on the actual execution scenario: particular inputs and progr...
Impact of graphical fidelity on physiological responses in virtual environments
Found in: Proceedings of the 19th ACM Symposium on Virtual Reality Software and Technology (VRST '13)
By Andrew Kennedy, David Whittinghill, Vivianette Ocasio-De Jesús
Issue Date:October 2013
pp. 73-76
Higher quality computer graphics in interactive applications in the areas of virtual reality and games is generally assumed to create a more immersive experience for the end user. In this study we examined this assumption by testing to what degree graphica...
Sensitivity analysis using type-based constraints
Found in: Proceedings of the 1st annual workshop on Functional programming concepts in domain-specific languages (FPCDSL '13)
By Andreas Haeberlen, Benjamin Pierce, Emilio Jesús Gallego Arias, Loris D'Antoni, Marco Gaboardi
Issue Date:September 2013
pp. 43-50
Function sensitivity --- how much the result of a function can change with respect to linear changes in the input --- is a key concept in many research areas. For instance, in differential privacy, one of the most common mechanisms for turning a (possibly ...
Parallel algorithm for simulating the spatial transmission of influenza in EpiGraph
Found in: Proceedings of the 20th European MPI Users' Group Meeting (EuroMPI '13)
By David E. Singh, Gonzalo Martín, Jesús Carretero, Maria-Cristina Marinescu
Issue Date:September 2013
pp. 205-210
This paper introduces an approach to modeling and simulating the propagation of flu-like infectious diseases over large, widely spread urban areas connected by transportation networks. We incorporate geographic location and a transportation model into our ...
Improving MPI applications with a new MPI_Info and the use of the memoization
Found in: Proceedings of the 20th European MPI Users' Group Meeting (EuroMPI '13)
By Alejandro Calderón, Borja Bergua, Daniel Higuero, Felix García-Carballeira, Javier Fernandez, Jesús Carretero
Issue Date:September 2013
pp. 7-12
The MPI forum is actively working for a better MPI standard. The results are the new version 3 of the MPI standard, and the efforts for the incoming MPI 3.1/4.0. The technological changes provide many opportunities for improvements and new ideas. This pape...
Definition of processes for MDE-based migrations
Found in: Proceedings of the Third Workshop on Process-Based Approaches for Model-Driven Engineering (PMDE '13)
By Óscar Sánchez Ramón, Francisco Javier Bermúdez Ruiz, Jesús García Molina
Issue Date:July 2013
pp. 1-9
Nowadays, lots of companies are migrating their legacy applications since they are difficult to extend and maintain. On the other hand, MDE techniques applied to software migration are gaining popularity due to their ability to automate this kind of proces...
Developing services in a service oriented architecture for evolutionary algorithms
Found in: Proceeding of the fifteenth annual conference companion on Genetic and evolutionary computation conference companion (GECCO '13 Companion)
By Antonio Miguel Mora, Carlos Fernandes, Gustavo Romero, Jesús González, Juan Julián Merelo, María Isabel García Arenas, Pablo García-Sánchez, Paloma de las Cuevas, Pedro Ángel Castillo
Issue Date:July 2013
pp. 1341-1348
This paper shows the design and implementation of services for Evolutionary Computation following the Service Oriented Architecture paradigm. This paradigm allows independence over language and distribution mechanism. This development is challenging becaus...
A research roadmap towards achieving scalability in model driven engineering
Found in: Proceedings of the Workshop on Scalability in Model Driven Engineering (BigMDE '13)
By Dániel Varró, Dimitrios S. Kolovos, Esther Guerra, István Ráth, Jesús Sánchez Cuadrado, Jordi Cabot, Juan De Lara, Louis M. Rose, Massimo Tisi, Nicholas Matragkas, Richard F. Paige
Issue Date:June 2013
pp. 1-10
As Model-Driven Engineering (MDE) is increasingly applied to larger and more complex systems, the current generation of modelling and model management technologies are being pushed to their limits in terms of capacity and efficiency. Additional research an...
A stake in the issue of homelessness: identifying values of interest for design in online communities
Found in: Proceedings of the 6th International Conference on Communities and Technologies (C&T '13)
By Jes A. Koepfler, Katie Shilton, Kenneth R. Fleischmann
Issue Date:June 2013
pp. 36-45
Social media has the potential to impact how traditionally marginalized and geographically disparate communities, such as the homeless, connect with each other and social services online. However, little is known about how best to support these interaction...
Making space for values: communication & values levers in a virtual team
Found in: Proceedings of the 6th International Conference on Communities and Technologies (C&T '13)
By Jes A. Koepfler, Katie Shilton
Issue Date:June 2013
pp. 110-119
The infrastructure underlying the Internet continues to evolve, with ramifications for not only the technical protocols that govern network functions, but also implications for social, economic, and legal issues. This paper uses ethnography to examine how ...
Implementing OmpSs support for regions of data in architectures with multiple address spaces
Found in: Proceedings of the 27th international ACM conference on International conference on supercomputing (ICS '13)
By Eduard Ayguadé, Javier Bueno, Jesús Labarta, Rosa M. Badia, Xavier Martorell
Issue Date:June 2013
pp. 359-368
The need for features for managing complex data accesses in modern programming models has increased due to the emerging hardware architectures. HPC hardware has moved towards clusters of accelerators and/or multicores, architectures with a complex memory h...
Web data indexing in the cloud: efficiency and cost reductions
Found in: Proceedings of the 16th International Conference on Extending Database Technology (EDBT '13)
By Dario Colazzo, Ioana Manolescu, Jesús Camacho-Rodríguez
Issue Date:March 2013
pp. 41-52
An increasing part of the world's data is either shared through the Web or directly produced through and for Web platforms, in particular using structured formats like XML or JSON. Cloud platforms are interesting candidates to handle large data repositorie...
AMADA: web data repositories in the amazon cloud
Found in: Proceedings of the 21st ACM international conference on Information and knowledge management (CIKM '12)
By Andrés Aranda-Andújar, Dario Colazzo, François Goasdoué, Francesca Bugiotti, Ioana Manolescu, Jesús Camacho-Rodríguez, Zoi Kaoudi
Issue Date:October 2012
pp. 2749-2751
We present AMADA, a platform for storing Web data (in particular, XML documents and RDF graphs) based on the Amazon Web Services (AWS) cloud infrastructure. AMADA operates in a Software as a Service (SaaS) approach, allowing users to upload, index, store, ...
A framework for the development of organizational collaborative systems
Found in: Proceedings of the 13th International Conference on Interaccin Persona-Ordenador (INTERACCION '12)
By Crescencio Bravo, Jesús Gallardo, Sergio L. Antonaya
Issue Date:October 2012
pp. 1-2
It seems that the future of collaborative systems implies the incorporation of End-User Development processes and new mechanisms for adaptability, so that each user could be able to fit this specific type of software to their particular needs in a given ti...
A framework for the design of awareness support in collaborative situations of implicit interaction
Found in: Proceedings of the 13th International Conference on Interaccin Persona-Ordenador (INTERACCION '12)
By Ana Isabel Molina, Crescencio Bravo, Jesús Gallardo
Issue Date:October 2012
pp. 1-2
The application of the Ambient Intelligence (AmI) approach implies the use of new styles of computer-human interaction as well as the need of supporting activities of collaborative nature. In these contexts, the concept of implicit interaction refers to th...
Designing a Real Time Artificial Vision System for Human Interaction with an Omnidirectional Mobile Platform
Found in: 2012 Brazilian Robotics Symposium and Latin American Robotics Symposium (SBR-LARS)
By Carolina Moreno Salcedo,Cesar Augusto Pena,Jes de Jesus Cerqueira,Antonio Marcus Nogueira Lima
Issue Date:October 2012
pp. 21-26
In this paper we presents preliminary results about the development of an artificial vision system for Human Robot Interaction (HRI) based on methods for recognition of facial features, object detection and tracking. The purpose is to implement a vision sy...
Enriching family personal encounters with ambient social media
Found in: Proceedings of the 2012 ACM Conference on Ubiquitous Computing (UbiComp '12)
By Jesús Favela, Mónica Tentori, Raymundo Cornejo
Issue Date:September 2012
pp. 792-793
As SNS become ubiquitous, users are exploiting SNS content to enrich in-person gatherings. In this paper we present the results of a 26-weeks deployment study of an interactive display involving a lightweight Facebook client, and a movement-based social ex...
Evaluation of a collaborative instructional framework for programming learning
Found in: Proceedings of the 17th ACM annual conference on Innovation and technology in computer science education (ITiCSE '12)
By Jesús Ángel Velázquez-Iturbide, Luis Miguel Serrano Cámara, Maximiliano Paredes Velasco
Issue Date:July 2012
pp. 162-167
Our work lies within the collaborative approach to learning CS1. We developed an instructional framework for collaborative learning (named CIF) that is oriented by educational objectives at the analysis level of Bloom's taxonomy. Moreover, the framework is...
We are visible: technology-mediated social participation in a Twitter network for the homeless
Found in: Proceedings of the 2012 iConference (iConference '12)
By Derek L. Hansen, Jes A. Koepfler
Issue Date:February 2012
pp. 492-493
This paper examines patterns of follow relationships in the @wearevisible ego-network on Twitter -- a project encouraging homeless individuals to "sign up, speak out, [and] be seen" online. A content analysis of the public profiles in this network identifi...
Studying the values of hard-to-reach populations: content analysis of tweets by the 21st century homeless
Found in: Proceedings of the 2012 iConference (iConference '12)
By Jes A. Koepfler, Kenneth R. Fleischmann
Issue Date:February 2012
pp. 48-55
This paper describes a content analysis of a corpus of 5,313 tweets from 32 individuals collected during a three-week period in March/April 2011. The corpus comprised two study groups: Group H -- Twitter users who self-identified as homeless or formerly ho...
Dynamic Modeling with Nonlinear Inputs and Backstepping Control for a Hexarotor Micro-Aerial Vehicle
Found in: Latin American Robotics Symposium and Intelligent Robotics Meeting
By Armando S. Sanca, P.J. Alsina, Jés de Jesus F. Cerqueira
Issue Date:October 2010
pp. 36-42
In this paper the hexarotor dynamic model with nonlinear inputs and full state back stepping technique is presented. Dead zone and saturation nonlinear inputs are considered reflected to the rotors. The goal is to obtain a faithful mathematical representat...
DS-CDMA Descrambling and Despreading with the Cell Broadband Engine
Found in: Signal Acquisition and Processing, International Conference on
By Jes Toft Kristensen, Peter August Simonsen, Andreas Popp, Peter Koch, Yannick Le Moullec
Issue Date:April 2009
pp. 128-133
This paper presents an investigation of the challengesin efficient programming of a DS-CDMA descrambling anddespreading application for the Cell Broadband Engine(CBE) architecture. A signal model of the DS-CDMA de-scrambling and despreading operations, exp...
Dynamic Modelling of a Quadrotor Aerial Vehicle with Nonlinear Inputs
Found in: Latin American Robotics Symposium and Intelligent Robotics Meeting
By Armando S. Sanca, Pablo J. Alsina, Jés de Jesus F. Cerqueira
Issue Date:October 2008
pp. 143-148
In this paper the quadrotor dynamic model with nonlinear inputs is presented. Deadzone and saturation nonlinear inputs are considered for the quadrotor reflected to the actuators. The goal is to obtain a faithful mathematical representation of the mechanic...
Comparison between SLOCs and number of files as size metrics for software evolution analysis
Found in: Software Maintenance and Reengineering, European Conference on
By Israel Herraiz, Gregorio Robles, Jes us M. Gonzalez-Barahon
Issue Date:March 2006
pp. 206-213
There are some concerns in the research community about the convenience of using low-level metrics (such as SLOC, source lines of code) for characterizing the evolution of software, instead of the more traditional higher lever metrics (such as the number o...
Technique to Design MLP?s Networks in CMOS Technology with Adjustment of the Back-Propagation Algorithm
Found in: Neural Networks, Brazilian Symposium on
By Fabio de Albuquerque Pereira, Jés Jesus Fiais Cerqueira
Issue Date:November 2002
pp. 192
No summary available.
A Complement to the Back-Propagation Algorithm: An Upper Bound for the Learning Rate
Found in: Neural Networks, IEEE - INNS - ENNS International Joint Conference on
By Jés J.F. Cerqueira, Álvaro G.B. Palhares, Marconi K. Madrid
Issue Date:July 2000
pp. 4517
This paper presents as complement for the back-propagation algorithm, a local convergence analysis gotten from a vectorial approach. The analysis is made through application of Lyapunov's second method, and it supplies an upper bound for the learning rate.