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Displaying 1-50 out of 1,186 total
Proposal and Optimization of a Fuzzy Logic Model for Automobile Injection Diagnosis Using Evolutionary Algorithms
Found in: 2013 International Conference on Mechatronics, Electronics and Automotive Engineering (ICMEAE)
By Cesar Leonardo Gonzalez Pinzon,Helbert Eduardo Espitia Cuchango,Carlos Ponce Corral,Jaime Romero Gonzalez
Issue Date:November 2013
pp. 96-102
This article presents results for the design of a fuel injection diagnostic strategy for motor vehicles in Ciudad Juárez, Chihuahua. The first part of this research develops a diagnosis model for the injector MD162524, implementing Fuzzy Logic. Characteriz...
 
Scalable Huge Directories through OSD+ Devices
Found in: 2013 21st Euromicro International Conference on Parallel, Distributed and Network-Based Processing (PDP)
By Ana Aviles-Gonzalez,Juan Piernas,Pilar Gonzalez-Ferez
Issue Date:February 2013
pp. 1-8
Management of directories with millions of files, accessed by thousands of clients at the same time, is a problem recently identified in HPC environments. This paper introduces an OSD+-based technique to deal with those directories. We use directory object...
 
Proposal of Game Design Document from software engineering requirements perspective
Found in: 2012 17th International Conference on Computer Games: AI, Animation, Mobile, Interactive Multimedia, Educational & Serious Games (CGAMES)
By Mario Gonzalez Salazar,Hugo A. Mitre,Cuauhtemoc Lemus Olalde,Jose Luis Gonzalez Sanchez
Issue Date:July 2012
pp. 81-85
The Game Design Document (GDD) plays a key role in the design phase of every game development. A poorly elaborated GDD can lead to rework and loss of investment in production and postproduction phases. To address these issues, an analysis of several availa...
 
A Metadata Cluster Based on OSD+ Devices
Found in: Computer Architecture and High Performance Computing, Symposium on
By Ana Avilés-Gonz´lez,Juan Piernas,Pilar Gonz´lez-Férez
Issue Date:October 2011
pp. 64-71
We present the design and implementation of both an enhanced type of OSD device, the OSD+ device, and a metadata cluster based on it. OSD+s support data objects and directory objects. A directory object stores file names and attributes, and supports metada...
 
Ubiquity of Virtual Disguisers and Potential Impact on Ethical Behavior
Found in: International Conference on Ubi-Media Computing
By G. Kobayashi, M.C. Broens, J. A. Quilici-Gonzalez, M.E.Q. Gonzalez
Issue Date:July 2011
pp. 186-190
The widespread availability of wirelessly connected portable computers, smartphones and other mobile devices, and the pervasive presence of computer services in our everyday environment, has brought the prediction of Mark Weiser of future ubiquitous comput...
 
Multiplier SEPIC converter
Found in: Electronics, Communications, and Computers, International Conference on
By J. C. Rosas-Caro, J. C. Mayo-Maldonado, J. E. Valdez-Resendiz, R. Salas-Cabrera, A. Gonzalez-Rodriguez, E. N. Salas-Cabrera, H. Cisneros-Villegas, J. G. Gonzalez-Hernandez
Issue Date:March 2011
pp. 232-238
This work introduces a set of PWM SEPIC dc-dc converters specially designed for high voltage-gain conversion, the voltage gain in the proposed converters can be adjusted by PWM and by adding diodes and capacitors in a diode-capacitor multiplier structure.
 
3D city models: Mapping approach using LIDAR technology
Found in: Electronics, Communications, and Computers, International Conference on
By Denis-Eduardo Hernandez-Garcia, Jose-Joel Gonzalez-Barbosa, Juan-Bautista Hurtado-Ramos, Francisco-Javier Ornelas-Rodriguez, Eduardo Castillo Castaneda, Alfonso Ramirez, Angel Ivan Garcia, Ricardo Gonzalez-Barbosa, Juan Gabriel Avina-Cervantez
Issue Date:March 2011
pp. 206-211
We propose a map building system for generation of 3D city models using a vehicle equipped with LIDAR (Light Detection And Ranging) technology, which is capable of obtaining more than one million points per second. This approach is based in two methods: pl...
 
Efficient Extraction of Protein-Protein Interactions from Full-Text Articles
Found in: IEEE/ACM Transactions on Computational Biology and Bioinformatics (TCBB)
By Chitta Baral, Christopher Miller, Christopher Miller, Graciela Gonzalez, Graciela Gonzalez, Jorg Hakenberg, Jorg Hakenberg, Luis Tari, Luis Tari, Nguyen Ha Vo, Nguyen Ha Vo, Robert Leaman, Robert Leaman, Ryan Sullivan, Ryan Sullivan, Siddha
Issue Date:July 2010
pp. 481-494
Proteins and their interactions govern virtually all cellular processes, such as regulation, signaling, metabolism, and structure. Most experimental findings pertaining to such interactions are discussed in research papers, which, in turn, get curated by p...
     
Approximating corridors and tours via restriction and relaxation techniques
Found in: ACM Transactions on Algorithms (TALG)
By Arturo Gonzalez-Gutierrez, Teofilo F. Gonzalez
Issue Date:June 2010
pp. 1-36
Given a rectangular boundary partitioned into rectangles, the Minimum-Length Corridor (MLC-R) problem consists of finding a corridor of least total length. A corridor is a set of connected line segments, each of which must lie along the line segments that ...
     
Multimodal Biometrics-Based Student Attendance Measurement in Learning Management Systems
Found in: Multimedia, International Symposium on
By Elisardo González Agulla, Enrique Argones Rúa, José Luis Alba Castro, Daniel González Jiménez, Luis Anido Rifón
Issue Date:December 2009
pp. 699-704
In this paper we present a solution to obtain useful and reliable user logs in a Learning Management System (LMS).Current LMS logs are combined with biometric-based logs that show the student behaviour. Our system models the student behaviour, allowing to ...
 
A Pattern Methodology to Specify Usable Security in Websites
Found in: Database and Expert Systems Applications, International Workshop on
By Ricardo Mendoza Gonzalez, Jaime Muñoz-Arteaga, Miguel Vargas Martin, Francisco Álvarez-Rodriguez, Juan Gonzalez Calleros
Issue Date:September 2009
pp. 155-159
This paper presents an overview of a new pattern methodology which is oriented to achieve basic usability and security design requirements in websites. We emphasize the need of adequate and uniform guidelines useful to incorporate essential security and us...
 
The Multiscenario Multienvironment BioSecure Multimodal Database (BMDB)
Found in: IEEE Transactions on Pattern Analysis and Machine Intelligence
By Javier Ortega-Garcia, Julian Fierrez, Fernando Alonso-Fernandez, Javier Galbally, Manuel R. Freire, Joaquin Gonzalez-Rodriguez, Carmen Garcia-Mateo, Jose-Luis Alba-Castro, Elisardo Gonzalez-Agulla, Enrique Otero-Muras, Sonia Garcia-Salicetti, Lorene Allano
Issue Date:June 2010
pp. 1097-1111
A new multimodal biometric database designed and acquired within the framework of the European BioSecure Network of Excellence is presented. It is comprised of more than 600 individuals acquired simultaneously in three scenarios: 1) over the Internet, 2) i...
 
A PicoBlaze-Based Embedded System for Monitoring Applications
Found in: Electronics, Communications, and Computers, International Conference on
By D. Antonio-Torres, D. Villanueva-Perez, E. Sanchez-Canepa, N. Segura-Meraz, D. Garcia-Garcia, D. Conchouso-Gonzalez, J.A. Miranda-Vergara, J.A. Gonzalez-Herrera, A.L. Riquer-Martinez de Ita, B. Hernandez-Rodriguez, R. Castañeda-Espinosa de los Monte
Issue Date:February 2009
pp. 173-177
PicoBlaze is an 8-bit soft core microprocessor developed by Xilinx that can be synthesized in some FPGA families. This paper presents a set of peripherals that have been developed to interface with PicoBlaze: VGA control, serial communication, PS/2 keyboar...
 
Meeting points: using thread criticality to adapt multicore hardware to parallel regions
Found in: Proceedings of the 17th international conference on Parallel architectures and compilation techniques (PACT '08)
By Antonio Gonzalez, Grigorios Magklis, Jose Gonzalez, Pedro Chaparro, Qiong Cai, Ryan Rakvic
Issue Date:October 2008
pp. 133-133
We present a novel mechanism, called meeting point thread characterization, to dynamically detect critical threads in a parallel region. We define the critical thread the one with the longest completion time in the parallel region. Knowing the criticality ...
     
Comparative Analysis of Wireless Broadband Mesh and Multi-hop Networks
Found in: Electronics, Robotics and Automotive Mechanics Conference
By R. Aquino-Santos, V. Rangel-Licea, A. González-Potes, L.A. Villaseñor-González, M. García-Ruiz, A. Edwards-Block, S. Sandoval-Carrillo
Issue Date:October 2008
pp. 157-162
This paper provides a comparative analysis of wireless broadband mesh and multi-hop networks. This analysis focuses on synchronization and centralized and distributed scheduling in wireless broadband mesh networks. In addition, it also describes the additi...
 
Studying Different Variants of PBIL to Solve a Real-World FAP Problem in GSM Networks
Found in: Advanced Engineering Computing and Applications in Sciences, International Conference on
By Jose M. Chaves-González, Miguel A. Vega-Rodríguez, David Domínguez-González, Juan A. Gómez-Pulido, Juan M. Sánchez-Pérez
Issue Date:October 2008
pp. 83-88
In this paper we study different versions of the PBIL (Population-Based Incremental Learning) algorithm to evaluate and try to improve the results obtained by the standard version of the algorithm when it is used to solve a realistic-sized frequency assign...
 
Population-Based Incremental Learning to Solve the FAP Problem
Found in: Advanced Engineering Computing and Applications in Sciences, International Conference on
By Jose M. Chaves-González, Miguel A. Vega-Rodríguez, David Domínguez-González, Juan A. Gómez-Pulido, Juan M. Sánchez-Pérez
Issue Date:October 2008
pp. 123-128
Frequency assignment problem (FAP) is a very important issue in the field of telecommunications (especially in GSM–Global System for Mobile–Networks). In this work, we present the Population-Based Incremental Learning (PBIL) algorithm to solve a particular...
 
Thread fusion
Found in: Low Power Electronics and Design, International Symposium on
By José González, Qiong Cai, Pedro Chaparro, Grigorios Magklis, Ryan Rakvic, Antonio González
Issue Date:August 2008
pp. 363-368
This work proposes Thread Fusion as an effective way of reducing power consumption when a Simultaneous Multi-Threaded (SMT) core is executing two threads from a homogeneous parallel application. Two dynamic instances of the same static instruction, each fr...
 
Efficient resources assignment schemes for clustered multithreaded processors
Found in: Parallel and Distributed Processing Symposium, International
By Fernando Latorre, Jose Gonzalez, Antonio Gonzalez
Issue Date:April 2008
pp. 1-12
New feature sizes provide larger number of transistors per chip that architects could use in order to further exploit instruction level parallelism. However, these technologies bring also new challenges that complicate conventional monolithic processor des...
 
A software-hardware hybrid steering mechanism for clustered microarchitectures
Found in: Parallel and Distributed Processing Symposium, International
By Qiong Cai, Josep M. Codina, Jose Gonzalez, Antonio Gonzalez
Issue Date:April 2008
pp. 1-12
Clustered microarchitectures provide a promising paradigm to solve or alleviate the problems of increasing microprocessor complexity and wire delays. High-performance out-of-order processors rely on hardware-only steering mechanisms to achieve balanced wor...
 
Parallelizing PBIL for Solving a Real-World Frequency Assignment Problem in GSM Networks
Found in: Parallel, Distributed, and Network-Based Processing, Euromicro Conference on
By Jose M. Chaves-González, David Domínguez-González, Miguel A. Vega-Rodríguez, Juan A. Gómez-Pulido, Juan M. Sánchez-Pérez
Issue Date:February 2008
pp. 391-398
Frequency planning (also known as frequency assignment problem -FAP-) is a very important task for current GSM operators. The problem consists in trying to minimize the number of interferences caused when a limited number of frequencies has to be assigned ...
 
An Intelligent Agent Using a Q-Learning Method to Allocate Replicated Data in a Distributed Database
Found in: Mexican International Conference on Artificial Intelligence
By Abel Rodríguez Morffi, Luisa Manuela González González, Darien Rosa Paz, Marisela Mainegra Hing
Issue Date:November 2007
pp. 231-240
The data distribution problem is a critical one that affects the global performance of the Distributed Database Systems because it directly influences the efficiency of the querying process. Due to the complexity of the problem, most of the proposed soluti...
 
Understanding the Thermal Implications of Multi-Core Architectures
Found in: IEEE Transactions on Parallel and Distributed Systems
By Pedro Chaparro, José González, Grigorios Magklis, Qiong Cai, Antonio González
Issue Date:August 2007
pp. 1055-1065
Multi-core architectures are becoming the main design paradigm for current and future processors. The main reason is that multi-core designs provide an effective way of overcoming ILP limitations by exploiting TLP. In addition, it is a power- and complexit...
 
EchoTech: A Water Management System
Found in: Electronics, Communications, and Computers, International Conference on
By Juan R. Del Rey, Gilberto Franco, Ramiro Berrelleza, Jesús Gutiérrez, Jair González, Luís Gonzalez
Issue Date:February 2007
pp. 31
One of the wordl?s major problems is the scarcity of water [5], due mainly to the unmeasured water consumption and the waste of this vital element. This paper describes a modular water management system, which helps not only in monitoring consumption but a...
 
Independent front-end and back-end dynamic voltage scaling for a GALS microarchitecture
Found in: Proceedings of the 2006 international symposium on Low power electronics and design (ISLPED '06)
By Antonio Gonzalez, Grigorios Magklis, Jose Gonzalez, Pedro Chaparro
Issue Date:October 2006
pp. 49-54
In recent years, Globally Asynchronous Locally Synchronous (GALS) designs and dynamic voltage scaling (DVS) have emerged as some of the most popular approaches to address the ever increasing microprocessor energy consumption. In this work, we propose two o...
     
Control Speculation for Energy-Efficient Next-Generation Superscalar Processors
Found in: IEEE Transactions on Computers
By Juan L. Aragón, José González, Antonio González
Issue Date:March 2006
pp. 281-291
Conventional front-end designs attempt to maximize the number of
 
Application of a state-space based mathematical model in the Passivity and Stability Analysis of an Envelope Detector Circuit
Found in: Electronics, Communications, and Computers, International Conference on
By S. A. Rodriguez, Manuel S. Gonzalez, Vazquez J.L. Gonzalez
Issue Date:March 2006
pp. 56
In this paper the stability and passivity analysis of a non linear envelope detector circuit is validated. Starting from the governing differential equations a vectorial representation with state variables is developed. Then, through a direct application o...
 
Interactive Computer Video Multimedia
Found in: Computational Intelligence and Multimedia Applications, International Conference on
By Pablo Gonzalez, Diana Elsa Gonzalez
Issue Date:August 2005
pp. 125-130
This paper adds to the growing amount of material on digital television; a new way of presenting video. A leap is made from the traditional 2-D video to a more realistic 3-D video. The 2-D and 3-D models will be compared. It will be shown that 3-D video of...
 
A Grid-Based Stochastic Simulation of Unitary and Membrane Ca^2+ Currents in Spherical Cells
Found in: Computer-Based Medical Systems, IEEE Symposium on
By Virginia González-Vélez, Horacio González-Vélez
Issue Date:June 2005
pp. 171-176
We present a stochastic simulation of L-type Ca2+ current assuming thousands of calcium channels on the membrane of a spherical cell. We propose a three-state Markov model to simulate the individual contribution of each channel. Rather than using a statist...
 
Hardware Architecture of MAP Algorithm for Turbo Codes Implemented in a FPGA
Found in: Electronics, Communications, and Computers, International Conference on
By Roberto Ramírez Marín, Andrés David García García, Luis Fernando González Pérez, Javier Eduardo González Villarruel
Issue Date:March 2005
pp. 70-75
Turbo codes represent a very powerful channel coding technique for next generation of mobile communications. In our days, the research is focus on the development and implementation of turbo coding-decoding algorithms in high-speed programmable platforms (...
 
Distributing the Frontend for Temperature Reduction
Found in: High-Performance Computer Architecture, International Symposium on
By Pedro Chaparro, Grigorios Magklis, José González, Antonio González
Issue Date:February 2005
pp. 61-70
Due to increasing power densities, both on-chip average and peak temperatures are fast becoming a serious bottleneck in processor design. This is due to the cost of removing the heat generated, and the performance impact of dealing with thermal emergencies...
 
VLSI Architecture for the M Algorithm Suited for Detection and Source Coding Applications
Found in: Electronics, Communications, and Computers, International Conference on
By Luis F. González Pérez, Emmanuel Boutillon, Andrés D. García García, Javier E. González Villarruel, Reynaldo Félix Acua
Issue Date:March 2005
pp. 119-124
Trellis source coders consists of a trellis search algorithm as the encoder and a finite state machine as the decoder. The search algorithm finds the best sequence of codewords in the trellis representing the source sequence. The optimum trellis search is ...
 
RF Analysis Applied to Digital Wireless Receivers Design
Found in: Electronics, Communications, and Computers, International Conference on
By J. González Villarruel, D. Santana Gómez, L. F. González Pérez, A. García García
Issue Date:March 2005
pp. 36-41
Wireless In this paper an RF analysis on wireless receivers is presented. Existing receiver architectures and RF design issues are studied to suggest a suitable method for wireless receiver communications design. Due to limitation of portable equipment as ...
 
Late Allocation and Early Release of Physical Registers
Found in: IEEE Transactions on Computers
By Teresa Monreal, Víctor Viñals, José González, Antonio González, Mateo Valero
Issue Date:October 2004
pp. 1244-1259
The Register File is one of the critical components of current processors in terms of access time and power consumption. Among other things, the potential to exploit instruction-level parallelism is closely related to the size and number of ports of the re...
 
Thermal-Aware Clustered Microarchitectures
Found in: Computer Design, International Conference on
By Pedro Chaparro, José González, Antonio González
Issue Date:October 2004
pp. 48-53
As frequencies and feature size scale faster than operating voltages, power density is increasing in each processor generation. Power density and the cost of removing the heat it generates are increasing at the same rate. Leakage is significantly increasin...
 
Frontend Frequency-Voltage Adaptation for Optimal Energy-Delay^2
Found in: Computer Design, International Conference on
By Grigorios Magklis, José González, Antonio González
Issue Date:October 2004
pp. 250-255
In this paper we present a clustered, multiple-clock domain (CMCD) microarchitecture that combines the benefits of both clustering and Globally Asynchronous Locally Synchronous (GALS) designs. We also present a mechanism for dynamically adapting the freque...
 
Implantation Guide for Collaborative Web-Based Systems (IGCWS)
Found in: Database and Expert Systems Applications, International Workshop on
By V. M. Ruiz Penichet, J. A. Gallud, M. L. González, P. González
Issue Date:September 2004
pp. 259-263
Nowadays the traditional idea about information systems has changed due to the fact that communication technologies are better. An information system is not a simple program which resolves a particular problem. Now it is a coordination, cooperation and/or ...
 
Cache organizations for clustered microarchitectures
Found in: Proceedings of the 3rd workshop on Memory performance issues: in conjunction with the 31st international symposium on computer architecture (WMPI '04)
By Antonio Gonzalez, Fernando Latorre, Jose Gonzalez
Issue Date:June 2004
pp. 46-55
Clustered microarchitectures are an effective organization to deal with the problem of wire delays and complexity by partitioning some of the processor resources. The organization of the data cache is a key factor in these processors due to its effect on c...
     
Simultaneous Measurements of Pressure, Electric Charge and Transmitted Light Intensity During the Extrusion of Polymer Melts
Found in: Electronics, Communications, and Computers, International Conference on
By E. Moreno-García, J. Pérez-González, B. M. Marín-Santibáñez, F. Rodríguez González
Issue Date:February 2004
pp. 174
The simultaneous measurement and record of pressure, as well as the electric charge and transmitted light intensity in an extrudate allows one to study the flow instabilities occurring in the extrusion of linear polymer melts. An experimental procedure to ...
 
Dynamic Cluster Resizing
Found in: Computer Design, International Conference on
By José González, Antonio González
Issue Date:October 2003
pp. 375
Processor resources required for an effective execution of an application vary across different sections. We propose to take advantage of clustering to turn-off resources that do not contribute to improve performance. First, we present a simple hardware sc...
 
Power-Aware Control Speculation through Selective Throttling
Found in: High-Performance Computer Architecture, International Symposium on
By Juan L. Aragón, José González, Antonio González
Issue Date:February 2003
pp. 103
<p>With the constant advances in technology that lead to the increasing of the transistor count and processor frequency, power dissipation is becoming one of the major issues in high-performance processors. These processors increase their clock frequ...
 
Control-Flow Speculation through Value Prediction
Found in: IEEE Transactions on Computers
By J. González, A. González
Issue Date:December 2001
pp. 1362-1376
<p>In this paper, we introduce a new branch predictor that predicts the outcome of branches by predicting the value of their inputs and performing an early computation of their results according to the predicted values. The design of a hybrid predict...
 
Selective Branch Prediction Reversal by Correlating with Data Values and Control Flow
Found in: Computer Design, International Conference on
By Juan L. Aragón, José González, José M. García, Antonio González
Issue Date:September 2001
pp. 0228
Abstract: Branch prediction is one of the main hurdles in the roadmap towards deeper pipelines and higher clock frequencies. This work presents a new approach to enhancing current branch predictors: Selective Branch Prediction Reversal. The rationale behin...
 
Software tool for transmission line analysis
Found in: Frontiers in Education, Annual
By E. Gago-Ribas, M.J. Gonzalez-Morales, C. Garcia-Vazquez, A. Pecharroman-Hernandez, S. Perez-Baraja, J.C. Fernandez-Perez, M.C. Gonzalez-Rodriguez
Issue Date:October 2000
pp. S1E/10-S1E/16
A brief description of a software tool developed to analyze transmission lines with arbitrary losses is presented in this paper. This tool summarizes a complete methodology for the analysis of arbitrary transmission lines by means of complex parametrizatio...
 
Libre Software for Computer Science Classes
Found in: IEEE Software
By Jesús M. González-Barahona, Pedro de-las-Heras-Quirós, José Centeno-González, Vicente Matellán-Olivera, Francisco J. Ballesteros
Issue Date:May 2000
pp. 76-79
The authors describe their early experiences using 386BSD to teach computer science classes at Spain's Carlos III University and discuss the lessons they've learned. They also review their reasons for using libre software for practical computer science tea...
 
Delaying Physical Register Allocation through Virtual-Physical Registers
Found in: Microarchitecture, IEEE/ACM International Symposium on
By Teresa Monreal, Victor Viñals, Antonio González, Mateo Valero, José González
Issue Date:November 1999
pp. 186
Register file access time represents one of the critical delays of current microprocessors, and it is expected to become more critical as future processors increase the instruction window size and the issue width. This paper present a novel physical regist...
 
Control-Flow Speculation through Value Prediction for Superscalar Processors
Found in: Parallel Architectures and Compilation Techniques, International Conference on
By Jose Gonzalez, Antonio Gonzalez
Issue Date:October 1999
pp. 57
In this paper, we introduce a new branch predictor that predicts the outcomes of branches by predicting the value of their inputs and performing an early computation of their results according to the predicted values. The design of a hybrid predictor compr...
 
Low Switching Noise CMOS Circuit Design Strategy Based on Regular Self-Timed Structures
Found in: Circuits and Systems, Midwest Symposium on
By Jo Gonzalez, Luis Gonzalez, Antonio Rubio
Issue Date:August 1998
pp. 176
In this paper a new design strategy used to implement low switching noise digital circuits is presented. The switching noise reduction is achieved by controlling the shape of the switching current waveform of the CMOS logic circuits. Self-timed structures ...
 
Virtual-Physical Registers
Found in: High-Performance Computer Architecture, International Symposium on
By A. González, J. González, M. Valero
Issue Date:February 1998
pp. 175
No summary available.
 
The design and performance of a conflict-avoiding cache
Found in: Microarchitecture, IEEE/ACM International Symposium on
By N. Topham, A. Gonzalez, J. Gonzalez
Issue Date:December 1997
pp. 71
High performance architectures depend heavily on efficient multi-level memory hierarchies to minimize the cost of accessing data. This dependence will increase with the expected increases in relative distance to main memory. There have been a number of pub...
 
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