PRODUCTIVIDAD

PUBLICACIONES

En esta sección encontrarás información y enlaces a las publicaciones realizadas por nuestro grupo de investigación, en revistas, congresos y editoriales.

No se encontraron resultados que coincidieran con los parámetros ingresados
2017
Application of image analysis to optimization of the bread-making process based on the acceptability of the crust color
Wilson Castro, Jimy Oblitas, Tony Chuquizuta, Himer Avila-George
Revista
2017
LIGA
Revista: Jornal of Cereal Science
Resumen

Consumption of bread and the demands concerning its quality features, being one of them its appearance, have been experiencing rapid growth. Thus, the standardization of its production aiming to keep its quality, applying new methods. The objective of this research was to develop a method to optimize the bread-making processes based on the acceptability of its crust color. For this effect, bread was experimentally produced using a Box-Behnken experimental design with three factors (sugar-flour relation, Baking temperature and Baking time) and three answer variables (L*, a*, b* ¼ parameters of CIELab color space); determination of color, by means of the acquisition, pre-processing, and analysis of images of bread samples until getting the color expressed in CIELab coordinates; an analysis of sensorial acceptance was made determining the L*, a*, and b* with the highest acceptance by consumers; finally, the optimization of the production process was made based on the L*, a*, and b* parameters, getting the optimal production parameters. The results show that by using the proposed method, it is possible to correlate the parameters of CIELab color space and the acceptance of the final consumer aiming to optimize bread making processes, it means getting bread with crust color of maximum acceptability.

Application of image analysis to optimization of the bread-making process based on the acceptability of the crust color
Wilson Castro, Jimy Oblitas, Tony Chuquizuta, Himer Avila-George
Revista
Modelling Personality-Based Individual Differences in the Use of Emotion Regulation Strategies
Juan Martínez-Miranda and Matías Alvarado
Congreso
2017
LIGA
Congreso: 30th Canadian Conference on Artificial Intelligence. Advances in Artificial Intelligence
Resumen

The modelling of the emotion regulation process is an important aspect that can contribute to the creation of more realistic intelligent virtual agents. The emotional reactions in a virtual agent, produced by the regulation process, can be useful to better adapt the agent's behaviour to the particular requirements of a social interactive scenario. We propose a computational model of emotion regulation where the use of di erent strategies to down-regulate the negative emotions is based on personality-based individual di erences. Our model implements a fuzzy mechanism that reproduce the correlation between di erent personality traits and the use of the speci c emotion regulation strategies described in the literature. The validation of the model has been performed through a set of simulations where synthetic data have been enerated to represent individuals with di erent personalities.

Modelling Personality-Based Individual Differences in the Use of Emotion Regulation Strategies
Juan Martínez-Miranda and Matías Alvarado
Congreso
2016
A novel approach to improve the planning of adaptive and interactive sessions for the treatment of Major Depression
Adrián Bresó, Juan Martínez-Miranda, Elies Fuster-García, Juan Miguel García-Gómez
Revista
2016
LIGA
Revista: Int. J. Human-Computer Studies
A novel approach to improve the planning of adaptive and interactive sessions for the treatment of Major Depression
Adrián Bresó, Juan Martínez-Miranda, Elies Fuster-García, Juan Miguel García-Gómez
Revista
A two-stage algorithm for combinatorial testing
Himer Avila George, Idelfonso Izquierdo Marquez
Revista
2016
LIGA
Resumen

Covering arrays are combinatorial structures which have applications in fields like software testing and hardware Trojan detection. In this paper we proposed a two-stage simulated annealing algorithm to construct covering arrays. The proposed algorithm is instanced in this paper through the construction of ternary covering arrays of strength three. We were able to get 579 new upper bounds. In order to show the generality of our proposal, we defined a new benchmark composed of 25 instances of MCAs taken from the literature, all instances were improved.

A two-stage algorithm for combinatorial testing
Himer Avila George, Idelfonso Izquierdo Marquez
Revista
Reacciones Afectivas en Interacciones Niño-Robot: Recopilación y Análisis de Datos"
Juan Martínez-Miranda, Humberto Pérez-Espinosa, Luis Villaseñor- Pineda, Carlos A. Reyes-García, Ismael Espinosa-Curiel, Himer Ávila- George y Josefina Rodríguez-Jacobo
Revista
2016
LIGA
Revista: Komputer Sapiens
Reacciones Afectivas en Interacciones Niño-Robot: Recopilación y Análisis de Datos"
Juan Martínez-Miranda, Humberto Pérez-Espinosa, Luis Villaseñor- Pineda, Carlos A. Reyes-García, Ismael Espinosa-Curiel, Himer Ávila- George y Josefina Rodríguez-Jacobo
Revista
Tuning the Parameters of a Convolutional Artificial Neural Network by Using Covering Arrays
H. Pérez-Espinosa, H. Avila- George, J. Rodríguez-Jacobo, H.A. Cruz-Mendoza, J.Martínez-Miranda, and I. Espinosa-Curiel
Congreso
2016
Congreso: Mexican International Conference on Artificial Intelligence (MICAI)
Tuning the Parameters of a Convolutional Artificial Neural Network by Using Covering Arrays
H. Pérez-Espinosa, H. Avila- George, J. Rodríguez-Jacobo, H.A. Cruz-Mendoza, J.Martínez-Miranda, and I. Espinosa-Curiel
Congreso
Usability and acceptability assessment of an empathic virtual agent to prevent major depression
A. Bresó, J. Martínez-Miranda, C. Botella, R. M. Baños, and J. M. García-Gómez1
Revista
2016
LIGA
Revista: Expert Systems
Usability and acceptability assessment of an empathic virtual agent to prevent major depression
A. Bresó, J. Martínez-Miranda, C. Botella, R. M. Baños, and J. M. García-Gómez1
Revista
2015
A Branch & Bound Algorithm to Derive a Direct Construction for Binary Covering Arrays
Himer Avila George, Idelfonso Izquierdo Marquez, Aldo Gonzalez-Gomez
Capítulo de libro
2015
LIGA
Resumen

Covering arrays are used in testing deterministic systems where failures occur as a result of interactions among subsystems. The goal is to reveal if any interaction induces a failure in the system. Application areas include software and hardware testing. A binary covering arrayCA(N;t,k,2) is an N×kN×k array over the alphabet {0,1}{0,1} with the property that each set of tcolumns contains all the 2t2t possible t-tuples of 0's and 1's at least once. In this paper we propose a direct method to construct binary covering arrays using an specific interpretation of binomial coefficients: a binomial coefficient with parameters k and r will be interpreted as the set of all the k-tuples from {0,1}{0,1} having r ones and k−rk−r zeroes. For given values of k and t, the direct method uses an explicit formula in terms of both k and t to provide a covering array CA(N;t,k,2)expressed as the juxtaposition of a set of binomial coefficients; this covering array will be of the minimum size that can be obtained by any juxtaposition of binomial coefficients. In order to derive the formula, a Branch & Bound (B&B) algorithm was first developed; the B&B algorithm provided solutions for small values of k and t that allowed the identification of the general pattern of the solutions. Like others previously reported methods, our direct method finds optimal covering arrays for k=t+1k=t+1 and k=t+2k=t+2; however, the major achievement is that nine upper bounds were significantly improved by our direct method, plus the fact that the method is able to set an infinite number of new upper bounds for t≥7t≥7 given that little work has been done to compute binary covering arrays for general values of k and t.

A Branch & Bound Algorithm to Derive a Direct Construction for Binary Covering Arrays
Himer Avila George, Idelfonso Izquierdo Marquez, Aldo Gonzalez-Gomez
Capítulo de libro
A Mobile Platform for Remote Monitoring of Water Quality on Live Fish Transport Containers: Lessons Learned
Ismael Espinosa Curiel, Humberto Pérez Espinosa, Josué González Gonzáez, and Josefina Rodríguez Jacobo
Congreso
2015
LIGA
Congreso:

We provide an in-depth study of building a mobile
sensor platform for real-time remote monitoring of water
quality in live fish transport containers installed in transport
vehicles. From a case study, we identified a set of challenges
and system requirements that cover the hardware design of
the sensors nodes; the storage, display and security of data;
and the capabilities for remote data access and management. A
system architecture is proposed to address these requirements.
The currently deployed network consists of two elements:
the Mobile Remote Monitoring Platform (MRMP), and the
Central Monitoring Platform (CMP). The MRMP have eight
sensor nodes, a sink node, and a mobile application. The CMP
have a remote monitoring software and a database. From the
design, development, and testing of this monitoring platform,
we identified several important areas for further work. They
are related to the design, implementation and interconnection
of sensor nodes; the energy supply; the mobile application;
control facilities; the integration of platform with the business

processes, and the fish health monitoring.

A Mobile Platform for Remote Monitoring of Water Quality on Live Fish Transport Containers: Lessons Learned
Ismael Espinosa Curiel, Humberto Pérez Espinosa, Josué González Gonzáez, and Josefina Rodríguez Jacobo
Congreso
A New Algorithm for Post-Processing Covering Arrays
Carlos Lara-Alvarez / Himer Avila-George
Revista
2015
LIGA
Revista: International Journal of Advanced Computer Science and Applications,
A New Algorithm for Post-Processing Covering Arrays
Carlos Lara-Alvarez / Himer Avila-George
Revista
Automatic Classification of Context in Induced Barking
Humberto P ́erez-Espinosa1, Jos ́e Mart ́ın P ́erez-Mart ́ınez2, Jos ́e A ́ngel Dur ́an-Reynoso2, and Ver ́onica Reyes-Meza3
Congreso
2015
LIGA
Congreso:
Automatic Classification of Context in Induced Barking
Humberto P ́erez-Espinosa1, Jos ́e Mart ́ın P ́erez-Mart ́ınez2, Jos ́e A ́ngel Dur ́an-Reynoso2, and Ver ́onica Reyes-Meza3
Congreso
Construction of Test-Suites
Himer Ávila-George/José Torres-Jiménez
Libro
2015
Libro:
Resumen

A good strategy to test a software component involves the generation of the whole set of cases that participate in its operation. While testing only individual values may not be enough, exhaustive testing of all possible combinations is not always feasible. An alternative technique to accomplish this goal is called combinatorial testing. Combinatorial testing is a method that can reduce costs and increase the effectiveness of software testing for many applications. It is based on constructing functional test-suites of economical size, which provide coverage of the most prevalent configurations. Covering arrays are combinatorial objects, which have been applied to do functional tests of software components. The use of covering arrays allows testing all the interactions, of a given size, among the input parameters using the minimum number of test cases.

In this book, an overview of software testing is presented; the main methods to construct test-suites using combinatorial objects are listed; finally, we propose a new strategy to construct test-suites using a Grid/Parallel approach.

Construction of Test-Suites
Himer Ávila-George/José Torres-Jiménez
Libro
Fusing actigraphy signals for outpatient monitoring
E. Fuster-García, A. Bresó, J.Martínez-Miranda, J Rosell-Ferrer, C. Matheson, J. M. García-Gómez
Revista
2015
LIGA
Revista: Information Fusion
Resumen

Actigraphy devices have been successfully used as effective tools in the treatment of diseases such as sleep disorders or major depression. Although several efforts have been made in recent years to develop smaller and more portable devices, the features necessary for the continuous monitoring of outpatients require a less intrusive, obstructive and stigmatizing acquisition system. A useful strategy to overcome these limitations is based on adapting the monitoring system to the patient lifestyle and behavior by providing sets of different sensors that can be worn simultaneously or alternatively. This strategy offers to the patient the option of using one device or other according to his/her particular preferences. However this strategy requires a robust multi-sensor fusion methodology capable of taking maximum profit from all of the recorded information. With this aim, this study proposes two actigraphy fusion models including centralized and distributed architectures based on artificial neural networks. These novel fusion methods were tested both on synthetic datasets and real datasets, providing a parametric characterization of the models' behavior, and yielding results based on real case applications. The results obtained using both proposed fusion models exhibit good performance in terms of robustness to signal degradation, as well as a good behavior in terms of the dependence of signal quality on the number of signals fused. The distributed and centralized fusion methods reduce the mean averaged error of the original signals to 44% and 46% respectively when using simulated datasets. The proposed methods may therefore facilitate a less intrusive and more dependable way of acquiring valuable monitoring information from outpatients.

Fusing actigraphy signals for outpatient monitoring
E. Fuster-García, A. Bresó, J.Martínez-Miranda, J Rosell-Ferrer, C. Matheson, J. M. García-Gómez
Revista
Recognition of Paralinguistic Information in Spoken Dialogue Systems for Elderly People
Humberto Pérez-Espinosa and Juan Mart ́ınez-Miranda
Capítulo de libro
2015
LIGA
Recognition of Paralinguistic Information in Spoken Dialogue Systems for Elderly People
Humberto Pérez-Espinosa and Juan Mart ́ınez-Miranda
Capítulo de libro
Search-Based Software Engineering to Construct Binary Test-Suites
Jose Torres-Jimenez and Himer Avila-George
Capítulo de libro
2015
LIGA
Libro: Search-Based Software Engineering to Construct Binary Test-Suites
Resumen

Abstract Search-based software engineering is the application of optimization
techniques in solving software engineering problems. One challenge to testing
software systems is the effort involved in creating test suites that will systematically
test the system and reveal faults in an effective manner. Given the importance of the
software testing phase, a specific subarea called search-based software testing has
become increasingly important. This paper presents a search-based software testing
tool (SBSTT), for constructing test suites. Through the use of SBSTT we were able
to find 370 new upper bounds for binary test suites.

Search-Based Software Engineering to Construct Binary Test-Suites
Jose Torres-Jimenez and Himer Avila-George
Capítulo de libro
Sistemas Interactivos de ayuda al tratamiento de trastornos afectivos: importancia de reconocer y expresar las emociones adecuadas
Juan Martínez-Miranda, Humberto Pérez-Espinosa y Luis Villaseñor-Pineda
Revista
2015
LIGA
Revista: Komputer Sapiens

De acuerdo con la Organización Mundial de la Salud

(OMS), en todo el mundo alrededor de 450 millones
de personas padecen trastornos mentales y de conducta;
y se estima que una de cada cuatro personas desarrollará
uno o más de estos trastornos en el transcurso de
su vida. Cinco de las diez causas principales de discapacidad
y muerte prematura a nivel mundial se deben
a condiciones psiquiátricas. A pesar de que dichos trastornos
son un importante problema de salud pública a
nivel mundial, en la gran mayoría de países muchos de
sus ciudadanos no reciben un tratamiento adecuado que
les permita tener una recuperación completa.

Sistemas Interactivos de ayuda al tratamiento de trastornos afectivos: importancia de reconocer y expresar las emociones adecuadas
Juan Martínez-Miranda, Humberto Pérez-Espinosa y Luis Villaseñor-Pineda
Revista
2014
Actigraphy Pattern Analysis For Outpatient Monitoring
E. Fuster-García, A. Bresó, J. Martínez-Miranda, J. M. García-Gómez
Capítulo de libro
2014
LIGA
PDF
Resumen

The actigraphy is a cost-effective method for assessing specific sleep disorders such as diagnosing insomnia, circadian rhythm disorders, or excessive sleepiness. Due to recent advances in wireless connectivity and motion activity sensors, the new actigraphy devices allow the non-intrusive and non-stigmatizing monitoring of outpatients for weeks or even months facilitating treatment outcome measure in daily life activities. This possibility has propitiated new studies suggesting the utility of actigraphy to monitor outpatients with mood disorders such as major depression, or patients with dementia. However, the full exploitation of data acquired during the monitoring period requires the use of automatic systems and techniques that allow the reduction of inherent complexity of the data, the extraction of most
informative features, and the interpretability and decision-making. In this study we purpose a set of techniques for actigraphy patterns analysis for
outpatient monitoring. These techniques include actigraphy signal pre-processing, quantification, nonlinear registration, feature extraction, detection of anomalies, and pattern visualization. In addition, techniques for daily actigraphy signals modelling and simulation are included to facilitate the development and test of new analysis techniques in controlled scenarios.

Actigraphy Pattern Analysis For Outpatient Monitoring
E. Fuster-García, A. Bresó, J. Martínez-Miranda, J. M. García-Gómez
Capítulo de libro
Fusing Affective Dimensions and Audio-Visual Features from Segmented Video for Depression Recognition: INAOE-BUAP's Participation at AVEC'14 Challenge Depression
Pérez-Espinosa, Humberto; Escalante-Balderas, Hugo Jair; Villaseñor-Pineda, Luis; Montes-y-Gómez, Manuel; Pinto-Avedaño, David; Reyez-Meza, Veronica
Congreso
2014
LIGA
Congreso: International Workshop on Audio/Visual Emotion Challenge

Depression is a disease that affects a considerable portion of the world population. Severe cases of depression interfere with the common live of patients, for those patients a strict monitoring is necessary in order to control the progress of the disease and to prevent undesired side effects. A way to keep track of patients with depression is by means of online monitoring via human-computer-interaction. The AVEC'14 challenge aims at developing technology towards the online monitoring of depression patients. This paper describes an approach to depression recognition from audiovisual information in the context of the AVEC'14 challenge. The proposed method relies on an effective voice segmentation procedure, followed by segment-level feature extraction and aggregation. Finally, a meta-model is trained to fuse mono-modal information. The main novel features of our proposal are that (1) we use affective dimensions for building depression recognition models; (2) we extract visual information from voice and silence segments separately; (3) we consolidate features and use a meta-model for fusion. The proposed methodology is evaluated, experimental results reveal the method is competitive.

Fusing Affective Dimensions and Audio-Visual Features from Segmented Video for Depression Recognition: INAOE-BUAP's Participation at AVEC'14 Challenge Depression
Pérez-Espinosa, Humberto; Escalante-Balderas, Hugo Jair; Villaseñor-Pineda, Luis; Montes-y-Gómez, Manuel; Pinto-Avedaño, David; Reyez-Meza, Veronica
Congreso
Leveraging Adaptive Sessions Based on Therapeutic Empathy Through a Virtual Agent
A. Bresó, J. Martínez-Miranda, J. M. García-Gómez
Congreso
2014
LIGA
PDF
Congreso: 6th. International Conference on Agents and Artificial Intelligence (ICAART 2014)
Resumen

This Doctoral Consortium paper outlines the author's proposed research for the improvement of the Human-Agent Interaction (HAI) applied to the computerised based treatment of Major Depression. In patients with chronic conditions such as Major Depression, the non-adherence to the treatment is a serious problem that increases the economic and clinical burden, and worsens the clinical status of the patient. The research work presented extends the work done in the previous author's MSc Thesis and promotes a better adherence to the treatment through two main contributions: (1) planning a flexible, personalized and adaptive daily interactive sessions, and (2) generating an adequate emotional response in a Virtual Agent used as the main system's interface based on a modelling of Therapeutic Empathy.

Leveraging Adaptive Sessions Based on Therapeutic Empathy Through a Virtual Agent
A. Bresó, J. Martínez-Miranda, J. M. García-Gómez
Congreso
Look on the Bright Side: A Model of Cognitive Change in Virtual Agents
J. Martínez-Miranda, A. Bresó, J. M. García-Gómez
Congreso
2014
LIGA
PDF
Congreso: 14th. International Conference on Inteligent Virtual Agents (IVA 2014)
Resumen

The modelling of empathic reactions in virtual agents has been recognised as a key aspect to improve agent-user relationship. Empathy is particularly important in a virtual agent used in computer-based psychotherapy applications. From a clinical perspective, it is more useful to produce therapeutic-empathy responses in the agent and not only natural empathic reactions as response to patient's inputs. Based on Gross's theory of emotion regulation, this paper presents a model of cognitive change used to reappraise with a more positive perspective those negative situations reported by the user and provide an adequate emotional reaction during the interaction. An initial evaluation of the model is also presented and the further work is described.

Look on the Bright Side: A Model of Cognitive Change in Virtual Agents
J. Martínez-Miranda, A. Bresó, J. M. García-Gómez
Congreso
Modelling Two Emotion Regulation Strategies as Key Features of Therapeutic Empathy
J. Martínez-Miranda, A. Bresó, J. M. García-Gómez
Capítulo de libro
2014
LIGA
PDF
Resumen

Computational models of affective processes have allowed the construction of synthetic characters able to produce empathic behaviours. The use of empathy, as a strategy to enhance engagement and cooperation with human pairs has proved good results in different application domains. Mental care is a particular area where the use of empathic virtual characters would offer several advantages facilitating the self-treatment management. Empathic responses in counselling and psychotherapy differ from "natural" empathy produced in everyday situations. Therapeutic empathy requires an emotional involvement of the therapist with the patient and an emotional detachment for a more objective appraisal of the situation. This paper introduces a model of emotion regulation as the first steps to get therapeutic empathy responses in a virtual agent constructed to support the treatment of major depression. The modelling of two specific strategies of emotion regulation based on Gross theory (cognitive change and response modulation) is described.

Modelling Two Emotion Regulation Strategies as Key Features of Therapeutic Empathy
J. Martínez-Miranda, A. Bresó, J. M. García-Gómez
Capítulo de libro
Software Process Improvement in Small Organizations: A Knowledge-Management Perspective
Ismael Edrein Espinosa Curiel, Josefina Rodríguez Jacobo, José Alberto Fernández Zepeda, Ulises Gutiérrez Osorio
Capítulo de libro
2014
LIGA
Capítulo de libro: Capítulo 11
Resumen

Recently, many micro and small-sized enterprises (MSEs) have implemented a model-based Software. Process Improvement (SPI) initiative. An initiative like this is a knowledge-intensive activity that uses and creates knowledge related to multiple areas (SPI knowledge) that should be managed. However, MSEs do not usually manage their SPI knowledge, which results in its erosion and eventual loss. This chapter discusses the importance of Knowledge Management (KM) for those MSEs that are implementing an SPI initiative. It also presents the knowledge created or required to accomplish the implementation of this type of initiative. Finally, it discusses the characteristics that a software tool should have to effectively support this KM process.

Software Process Improvement in Small Organizations: A Knowledge-Management Perspective
Ismael Edrein Espinosa Curiel, Josefina Rodríguez Jacobo, José Alberto Fernández Zepeda, Ulises Gutiérrez Osorio
Capítulo de libro
2013
A framework for evaluation and control of the factors that influence the software process improvement in small organizations
Ismael Edrein Espinosa Curiel, Josefina Rodríguez Jacobo, José Alberto Fernández Zepeda
Revista
2013
LIGA
PDF
Revista: Journal of Software: Evolution and Process
Resumen

Today, many micro-sized and small-sized software enterprises (MSEs) have initiated a software process improvement (SPI) initiative to be more competitive in the software market. SPI initiatives in MSEs have not been entirely successful; in general, MSEs consider them a long, expensive, and difficult activity. One of the reasons of these results is that a large number of human, social, technical, and organizational factors influence these initiatives. MSEs require to control, mitigate, or solve these factors to succeed in their initiatives. However, because there is a lack of information regarding the characteristics and behavior of these factors in the context of the MSEs, SPI managers have limited information to design strategies to control these factors. This work proposes a framework of factors that influence SPI initiatives in MSEs and a methodology to evaluate and control these factors. This framework includes 132 factors grouped in six categories. Additionally, we specify their properties, their value scales, and the property values for each factor. SPI managers could use this framework to evaluate and control potential threats to SPI initiatives and to propose better SPI strategies. Copyright © 2011 John Wiley & Sons, Ltd.

A framework for evaluation and control of the factors that influence the software process improvement in small organizations
Ismael Edrein Espinosa Curiel, Josefina Rodríguez Jacobo, José Alberto Fernández Zepeda
Revista
A metaheuristic approach for constructing functional test-suites
Himer Avila-George; Jose Torres-Jimenez - Vicente Hernández; Loreto Gonzalez-Hernandez
Revista
2013
LIGA
PDF
Revista: IET Software
Resumen

This study presents a metaheuristic approach based on a simulated annealing (SA) algorithm for constructing Mixed Covering Arrays. This algorithm incorporates several distinguishing features, including an efficient heuristic to generate good quality initial solutions, and a compound neighbourhood function that combines two carefully designed neighbourhood functions. The experimental design involved a benchmark reported in the literature and two real cases of software components. The experimental evidence showed that the SA algorithm equals or improves the obtained results by other approaches reported in the literature, and also finds the optimal solution in some of the solved cases.

A metaheuristic approach for constructing functional test-suites
Himer Avila-George; Jose Torres-Jimenez - Vicente Hernández; Loreto Gonzalez-Hernandez
Revista
Creation of Creative Work Teams using Multi-Agent based Social Simulation
A. Bresó, A. Pérez, J. Juan-Albarracín, J. Martínez-Miranda, M. Robles, J. M. García-Gómez
Congreso
2013
PDF
Congreso: 5th. International Conference on Agents and Artificial Intelligence
Resumen

Over the past decades, advances in Artificial Intelligence (AI) techniques have investigated the modelling of complex systems. In particular, the use of Multi-Agent Systems (MAS) opened new possibilities for studying different domains using social simulation. In the present work we have implemented and empirically evaluated a Multi-Agent Based Social Simulation (MABSS) system to support the formation of creative work teams. Based on existent psychological and organizational creativity studies, we have modelled a set of personal characteristics and contextual factors to represent and analyse their influence on creativity at both: the individual and the group level. The obtained initial results were significantly better than the results obtained with a pure stochastic model (average improvement of 8.2%). Additionally, we empirically confirm some hypothesis about group formation from the organizational studies.

Creation of Creative Work Teams using Multi-Agent based Social Simulation
A. Bresó, A. Pérez, J. Juan-Albarracín, J. Martínez-Miranda, M. Robles, J. M. García-Gómez
Congreso
Managing Data in Help4Mood
M. K. Wolters, J. Martínez-Miranda, S. Estévez, H. F. Hastie, C. Matheson
Revista
2013
LIGA
Revista: EAI Endorsed Transactions on Ambient Systems
Resumen

Help4Mood is a system that supports the treatment of people with depression in the community. It collects rich cognitive, psychomotor, and motor data through a Personal Monitoring System and a Virtual Agent, which is then analysed by a Decision Support System; analysis results are fed back to patients and their treating clinicians. In this paper, we describe how the complex data is managed and discuss ethical issues. Data is stored in functional units that correspond to treatment relevant entities. Custom XML DTDs are defined for each unit, which are used to exchange information between system components. As far as possible, observations and findings are coded using SNOMED CT to ensure interoperability with other applications such as Electronic Health Records.

Managing Data in Help4Mood
M. K. Wolters, J. Martínez-Miranda, S. Estévez, H. F. Hastie, C. Matheson
Revista
2012
Acoustic feature selection and classification of emotions in speech using a 3d continuous emotion model
Pérez-Espinosa, Humberto; Reyes-García, Carlos A.; Villaseñor-Pineda, Luis
Revista
2012
LIGA
PDF
Revista: Biomedical Signal Processing and Control
Resumen

In this paper we report the results obtained from experiments with a database of emotional speech in English in order to find the most important acoustic features to estimate Emotion Primitives which determine the emotional content on speech. We are interested in exploiting the potential benefits of continuous emotion models, so in this paper we demonstrate the feasibility of applying this approach to annotation of emotional speech and we explore ways to take advantage of this kind of annotation to improve the automatic classification of basic emotions.

Acoustic feature selection and classification of emotions in speech using a 3d continuous emotion model
Pérez-Espinosa, Humberto; Reyes-García, Carlos A.; Villaseñor-Pineda, Luis
Revista
Construction of orthogonal arrays of index unity using logarithm tables for galois fields
Jose Torres-Jimenez; Himer Avila-George; Nelson Rangel-Valdez; Loreto Gonzalez-Hernandez
Capítulo de libro
2012
LIGA
Libro: Cryptography and Security in Computing
Resumen

This chapter proposes an efficient implementation for the Bush's construction (Bush, 1952) of OAs of index unity, based on the use of logarithm tables for Galois Fields. This is an application of the algorithm of Torres-Jimenez et al. (2011). The motivation of this research work born from the applications of OAs in cryptography as shown by Hedayat et al. (1999). Also, it is discussed an alternative use of the logarithm table algorithm for the construction of cyclotomic matrices to construct CAs (Colbourn, 2010).

Construction of orthogonal arrays of index unity using logarithm tables for galois fields
Jose Torres-Jimenez; Himer Avila-George; Nelson Rangel-Valdez; Loreto Gonzalez-Hernandez
Capítulo de libro
Knowledge Management in Software Process Improvement Initiatives in Small Organizations
Josefina Rodríguez Jacobo, Ismael Edrein Espinosa Curiel, Ulises Gutiérrez Osorio, Violeta Ocegueda Miramontes, José Alberto Fernández Zepeda
Congreso
2012
Congreso: EuroSPI
Resumen

In recent years, an increasing number of micro-sized and small-sized enterprises (MSEs) started a model-based Software Process Improvement (SPI) initiative. These initiatives are knowledge intensive activities that use and create knowledge related to multiple areas (SPI knowledge); however, very often MSEs do not manage their SPI knowledge causing its erosion and eventual lost. We performed a case study with five Mexican MSEs to analyze their SPI knowledge management process. We integrated the resulting information and created the SPI knowledge management system, Sharebox. Finally, to study the adoption of this system, we performed five interviews and two empirical studies. Preliminary results show that Share-box is relevant in SPI initiatives, but several barriers limit its adoption.

Knowledge Management in Software Process Improvement Initiatives in Small Organizations
Josefina Rodríguez Jacobo, Ismael Edrein Espinosa Curiel, Ulises Gutiérrez Osorio, Violeta Ocegueda Miramontes, José Alberto Fernández Zepeda
Congreso
Modeling the Influence of Trust on Work Team Performance
J. Martínez-Miranda, J. Pavón
Revista
2012
LIGA
PDF
Revista: SIMULATION, Transactions of The Society for Modeling and Simulation International
Resumen

The selection of suitable people to make up a successful work team is not a trivial decision-making process, because of the diversity and complexity of the factors that influence individual and team performance. Teams are assembled by project managers using their experience and the information they have available (although this is frequently scarce, uncertain, and dynamic) about the personal and professional characteristics of potential team members. In this paper, we introduce an agent-based model developed to support this decision-making process where a virtual team can be configured using some selected characteristics of potential team members. Fuzzy sets and fuzzy rules are used to model the interaction between team members and a given set of tasks, generating statistical information that represents possible performance by team members. More specifically, the paper focuses on the concept of trust, an important social skill that influences performance at individual (team member) and global (work team) levels. We describe the implementation of an agent-based simulation system where the user can test different team configurations to compare performance and select the best possible work team for a given project. The evaluation and validation of the model was performed through face validity and historical data validation techniques, which are based on information collected from real work teams. The results show the suitability of the model as a helpful tool in the formation and configuration of work teams for specific scenarios.

Modeling the Influence of Trust on Work Team Performance
J. Martínez-Miranda, J. Pavón
Revista
New bounds for ternary covering arrays using a parallel simulated annealing
Himer Avila-George; Jose Torres-Jimenez; Vicente Hernández
Revista
2012
LIGA
Revista: Mathematical Problems in Engineering
Resumen

In this paper, there are three parallel approaches for simulated annealing: the independent, semi-independent, and cooperative searches are applied to the covering arrays construction problem. The empirical evidence supported by statistical analysis indicates that cooperative approach offers the best execution times and the same bounds as the independent and semi-independent approaches. Extensive experimentation was carried out, using 182 well-known benchmark instances of ternary covering arrays, for assessing its performance with respect to the best-known bounds reported previously. The results show that cooperative approach attains 134 new bounds and equals the solutions for other 29 instances.

New bounds for ternary covering arrays using a parallel simulated annealing
Himer Avila-George; Jose Torres-Jimenez; Vicente Hernández
Revista
Organizing data quality assessment of shifting biomedical data
C. Sáez, J. Martínez-Miranda, M. Robles, J. M. García-Gómez
Congreso
2012
LIGA
PDF
Congreso: The 24th Medical Informatics Conference
Resumen

Low biomedical Data Quality (DQ) leads into poor decisions which may affect the care process or the result of evidence-based studies. Most of the current approaches for DQ leave unattended the shifting behaviour of data underlying concepts and its relation to DQ. There is also no agreement on a common set of DQ dimensions and how they interact and relate to these shifts. In this paper we propose an organization of biomedical DQ assessment based on these concepts, identifying characteristics and requirements which will facilitate future research. As a result, we define the Data Quality Vector compiling a unified set of DQ dimensions (completeness, consistency, duplicity, correctness, timeliness, spatial stability, contextualization, predictive value and reliability), as the foundations to the further development of DQ assessment algorithms and platforms.

Organizing data quality assessment of shifting biomedical data
C. Sáez, J. Martínez-Miranda, M. Robles, J. M. García-Gómez
Congreso
Supercomputing and Grid computing on the verification of covering arrays.
Himer Avila-George; Jose Torres-Jimenez; Nelson Rangel-Valdez; Abel Carrion; Vicente Hernández
Revista
2012
LIGA
Revista: The Journal of supercomputing
Resumen

In this paper, we present an algorithm for CA verification and its implementation details in three different computation paradigms: (a) sequential approach (SA); (b) parallel approach (PA); and (c) Grid approach (GA). Four different PAs were compared in their performance of verifying a matrix as a CA; the PA with the best performance was included in a different experimentation where the three paradigms, SA, PA, and GA were compared in a benchmark composed by 45 possible CA instances. The results showed the limitations of the different paradigms when solving the verification of CA problem, and points out the necessity of a Grid approach to solve the problem when the size of a CA grows.

Supercomputing and Grid computing on the verification of covering arrays.
Himer Avila-George; Jose Torres-Jimenez; Nelson Rangel-Valdez; Abel Carrion; Vicente Hernández
Revista
2011
A Competency Framework for the Stakeholders of a Software Process Improvement Initiative
Ismael Edrein Espinosa Curiel, Josefina Rodríguez Jacobo, José Alberto Fernández Zepeda
Congreso
2011
LIGA
Congreso: ACM
Resumen

The competencies (a set of specific knowledges, skills, attitudes and behaviors; e.g. stress handling, commitment, collaboration and identification of conflicts) of the employees of software organizations are a fundamental element for the success of a Software Process Improvement (SPI) initiative. We performed three case studies to identify the competencies required for the stakeholders in an SPI initiative. To identify these competencies, we observed the activities that each stakeholder performs and the interactions among them. We also identified the competencies that are required to perform those activities. We performed a classification of the identified competencies and integrated them into a framework. This framework defines the competencies for seven roles involved in an SPI initiative and defines the level of expertise required by each role for each competency. To evaluate the framework, we performed ten interviews and two empirical tests. Preliminary results show that this framework is relevant in SPI initiatives, the use of this framework can raise the awareness about the competencies, and it can support some SPI activities.

A Competency Framework for the Stakeholders of a Software Process Improvement Initiative
Ismael Edrein Espinosa Curiel, Josefina Rodríguez Jacobo, José Alberto Fernández Zepeda
Congreso
Bilingual acoustic feature selection for emotion estimation using a 3d continuous model
Pérez-Espinosa, Humberto; Reyes-García, Carlos A.; Villaseñor-Pineda, Luis
Congreso
2011
LIGA
PDF
Congreso: IEEE International Conference on Automatic Face & Gesture Recognition and Workshops (FG 2011)
Resumen

Emotions are complex human phenomena. Numberless researchers have attempted a variety of approaches to model these phenomena and to find the optimal set of emotion descriptors. In this paper, we search for the most appropriate acoustic features to estimate the emotional content in speech based on a continuous multi-dimensional model of emotions. We analyze a set of 6,920 features using the feature selection method known as Linear Forward Selection. We studied the importance of the features dividing them into groups and working with two databases, one in English and one in German to analyze the multi-lingual importance of features and to know if these features are important regardless of the language.

Bilingual acoustic feature selection for emotion estimation using a 3d continuous model
Pérez-Espinosa, Humberto; Reyes-García, Carlos A.; Villaseñor-Pineda, Luis
Congreso
Construction of logarithm tables for Galois Fields
Jose Torres-Jimenez; Nelson Rangel-Valdez; Ana Loreto Gonzalez-Hernandez; Himer Avila-George
Revista
2011
LIGA
Revista: International Journal of Mathematical Education in Science and Technology
Resumen

A branch of mathematics commonly used in cryptography is Galois Fields GF(p^n ). Two basic operations performed in GF(p^n) are the addition and the multiplication. While the addition is generally easy to compute, the multiplication requires a special treatment. A well-known method to compute the multiplication is based on logarithm and antilogarithm tables. A primitive element of a GF(p^n ) is a key part in the construction of such tables, but it is generally hard to find a primitive element for arbitrary values of p and n. This article presents a naive algorithm that can simultaneously find a primitive element of GF(p^n) and construct its corresponding logarithm and antilogarithm tables. The proposed algorithm was tested in GF(p^n) for several values of p and n; the results show a good performance, having an average time of 0.46 seconds to find the first primitive element of a given GF(p^n) for values of n = {2, 3, 4, 5, 8, 12} and prime values p between 2 and 97.

Construction of logarithm tables for Galois Fields
Jose Torres-Jimenez; Nelson Rangel-Valdez; Ana Loreto Gonzalez-Hernandez; Himer Avila-George
Revista
Dimods: aplicación al modelo MoProSoft
Josefina Rodríguez Jacobo, Ismael Edrein Espinosa Curiel, José Alberto Fernández Zepeda
Libro
2011
LIGA
Libro: Dimods: aplicación al modelo MoProSoft
Prólogo

El presente libro es producto de un trabajo de investigación realizado por el Grupo de Ingeniería de Software Enfocado en la Persona (GISEP) del Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California (CICESE) y financiado parcialmente por el Fondo Mixto Baja California.

El objetivo de este libro es proporcionar una herramienta que facilite la enseñanza y el aprendizaje de aquellos procesos organizacionles complejos y difíciles de implementar: La herramienta que proponemos es una técnica de visualización llamada dimods. Esta técnica es muy versátil y, a pesar de que se originó con la idea de facilitar la implementación y adopción de ciertos procesos que utilizan las organizaciones de desarrollo de software para mejorar la calidad de sus productos, se puede utilizar en general para modelar eficazmente una gran variedad de procesos organizacionales.

Este libro está pensado para todas aquellas personas que requieran modelar gráficamente algún proceso organizacional. Muestra cómo los dimods pueden modelar algún proceso a distintos niveles de acercamiento y de detalle, tanto desde el punto de vista del proceso o desde el punto de vista de la persona involucrada en el proceso. Este libro incorpora una metodología sencilla de diseño y un ejemplo de tamaño considerable para que se pueda ver el modelado de procesos organizacionales reales.

Como este libro también incorpora un ejemplo completo de todos los procesos del modelo MoProSoft modelado por medio de dimods, también lo pueden utilizar los estudiantes y profesionales de las ciencias computacionales como una herramienta complementaria para aprender o enseñar el modelo MoProSoft. Creemos que por su utilidad y bajo costo, este libro no debería faltar en aquellas organizaciones que estén pensando en modificar sus procesos, y especialmente en aquellas organizaciones de desarrollo de software que estén planeando o estén llevando a cabo la implementación de MoProSoft.

Esperamos que este libro sea del agrado de los lectores y lo disfruten tanto cuando lo lean, como nosotros cuando lo escribimos. Agradecemos a todas las personas que participaron amablemente en el caso de estudio y que nos apoyaron con sus comentarios y hallazgos.

Para la elaboración de los diagramas que se incluyen en el presente libro se utilizaron los manuales de la Norma Mexicana NMX-I-059-NYCE-2005 (MoProSoft). Dado que uno de los objetivos que nos propusimos con la creación de este libro fue el de apoyar el proceso de apopción del modelo MoProSoft en las organizaciones de desarrollo de software, el lector debe de estar consiente que los manuales que proporciona la norma son indispensables para poder implementar dicho modelo. Nuestro libro se debe ver como un material adicional que tiene ciertas características visuales y pedagógicas que pueden ayudar a comprender mejor este modelo y por ningún motivo puede reemplazar a los manuales proporcionados por la norma.

Dimods: aplicación al modelo MoProSoft
Josefina Rodríguez Jacobo, Ismael Edrein Espinosa Curiel, José Alberto Fernández Zepeda
Libro
Emowisconsin: an emotional children speech database in mexican spanish
Pérez-Espinosa, Humberto; Reyes-García, Carlos A.; Villaseñor-Pineda, Luis
Congreso
2011
LIGA
Congreso: Affective Computing and Intelligent Interaction
Resumen

The acquisition of naturalistic speech data and the richness of its annotation are very important to face the challenges of automatic emotion recognition from speech. This paper describes the creation of a database of emotional speech in the Spanish spoken in Mexico. It was recorded from children between 7 and 13 years old while playing a sorting card game with an adult examiner. The game is based on a neuropsychological test, modified to encourage dialogue and induce emotions in the player. The audio was segmented at speaker turn level and annotated with six emotional categories and three continuous emotion primitives by 11 human evaluators. Inter-evaluator agreement is presented for categorical and continuous annotation. Initial classification and regression experiments were performed using a set of 6,552 acoustic features.

Emowisconsin: an emotional children speech database in mexican spanish
Pérez-Espinosa, Humberto; Reyes-García, Carlos A.; Villaseñor-Pineda, Luis
Congreso
MAXCLIQUE Problem Solved Using SQL
Jose Torres-Jimenez; Nelson Rangel-Valdez; Himer Avila-George; Loreto Gonzalez-Hernandez
Congreso
2011
PDF
Congreso: The Third International Conference on Advances in Databases, Knowledge, and Data Applications
Resumen

This paper aims to show that SQL queries can be used to solve a well-known combinatorial optimization problem, the Maximum Clique Problem (MAXCLIQUE). This problem arises in many real world applications as computer vision and pattern recognition or coding theory to mention some of them. A clique of a graph is a complete subgraph, i.e., a graph where every pair of vertices is an edge. The MAXCLIQUE problem searches for the clique of the largest cardinality in a graph (the one with the greatest number of nodes). We propose a model based on SQL queries to solve this problem. We test our models in 62 random instances. Results show that the use of simple queries can yield solutions for the MAXCLIQUE problem in an easy and accessible form.

MAXCLIQUE Problem Solved Using SQL
Jose Torres-Jimenez; Nelson Rangel-Valdez; Himer Avila-George; Loreto Gonzalez-Hernandez
Congreso
The design and implementation of a novel security model for HealthAgents
Liang Xiao, Srinandan Dasmahapatra, Paul Lewis, Bo Hu, Andrew Peet, Alex Gibb, David Dupplaw, Madalina Croitoru, Francesc Estanyol, Juan Martínez-Miranda, Horacio González-Vélez, Magí lluch I Ariet
Revista
2011
LIGA
PDF
Revista: The Knowledge Engineering Review
Resumen

In this paper, we analyze the special security requirements for software support in health care and the HealthAgents system in particular. Our security solution consists of a link-anonymized data scheme, a secure data transportation service, a secure data sharing and collection service, and a more advanced access control mechanism. The novel security service architecture, as part of the integrated system architecture, provides a secure health-care infrastructure for HealthAgents and can be easily adapted for other health-care applications.

The design and implementation of a novel security model for HealthAgents
Liang Xiao, Srinandan Dasmahapatra, Paul Lewis, Bo Hu, Andrew Peet, Alex Gibb, David Dupplaw, Madalina Croitoru, Francesc Estanyol, Juan Martínez-Miranda, Horacio González-Vélez, Magí lluch I Ariet
Revista
The HealthAgents ontology: Knowledge representation in a distributed decision support system for brain tumours
Bo Hu, Madalina Croitoru, Roman Roset, David Dupplaw, Miguel Lurgi, Srinandan Dasmahapatra, Paul Lewis, Juan Martinez-Miranda, Carlos Saez
Revista
2011
LIGA
PDF
Revista: The Knowledge Engineering Review

In this paper we present our experience of representing the knowledge behind HealthAgents (HA), a distributed decision support system for brain tumour diagnosis. Our initial motivation came from the distributed nature of the information involved in the system and has been enriched by clinicians' requirements and data access restrictions. We present in detail the steps we have taken towards building our ontology starting from knowledge acquisition to data access and reasoning. We motivate our representational choices and show our results using domain examples used by clinical partners in HA.

The HealthAgents ontology: Knowledge representation in a distributed decision support system for brain tumours
Bo Hu, Madalina Croitoru, Roman Roset, David Dupplaw, Miguel Lurgi, Srinandan Dasmahapatra, Paul Lewis, Juan Martinez-Miranda, Carlos Saez
Revista
2010
A heuristic approach for constructing ternary covering arrays using trinomial coefficients
Jorge Martinez-Pena; Jose Torres-Jimenez; Nelson Rangel-Valdez; Himer Avila-George
Congreso
2010
LIGA
Congreso: Advances in Artificial Intelligence – IBERAMIA 2010
Resumen

This paper presents a simulated annealing (SA) algorithm for the construction of ternary covering arrays (CAs) using a trinomial coefficient representation. A ternary CA, denoted by CA(t, k, 3), is an N × k array where each N × t subarray contains each of the 3t combinations of symbols at least once. The construction of optimal CAs is, in general, an NP-complete problem. Many reported SA implementations use an N × k matrix representation for the CA construction. Instead of this, we represent ternary CAs using trinomial coefficients in order to reduce the search space for the SA algorithm.

A heuristic approach for constructing ternary covering arrays using trinomial coefficients
Jorge Martinez-Pena; Jose Torres-Jimenez; Nelson Rangel-Valdez; Himer Avila-George
Congreso
Competency Framework for Software Engineers
José Gamaliel Rivera Ibarra, Josefina Rodríguez Jacobo, José Alberto Fernández Zepeda, Miguel Angel Serrano Vargas
Congreso
2010
LIGA
Congreso: Competency Framework for Software Engineers
Resumen

One of the main concerns of the software industry is to develop the talent of its human resources, since the quality and innovation of its products and services depend to a great extent on the knowledge, the ability and the talent that software engineers apply in the software development process. A competency framework defines a set of knowledge, skills, and behaviors that professionals must have to excel in their careers. A competency framework facilitates the identification of training needs and guides the design of a professional development program. In this paper we propose a competency framework for software engineers, whose design is based on the activities and interactions that they perform during the software development process.

Competency Framework for Software Engineers
José Gamaliel Rivera Ibarra, Josefina Rodríguez Jacobo, José Alberto Fernández Zepeda, Miguel Angel Serrano Vargas
Congreso
Features selection for primitives estimation on emotional speech
Pérez-Espinosa, Humberto; Reyes-García, Carlos A.; Villaseñor-Pineda, Luis
Congreso
2010
LIGA
PDF
Congreso: IEEE International Conference on Acoustics Speech and Signal Processing (ICASSP)
Resumen

This paper examines the importance of different groups of speech acoustic features in the estimation of emotional primitives which define a three-dimensional continuous model of emotions. A set of proposed features is extracted from a database of German spontaneous emotional speech. This features set tries to represent several aspects of emotional content in speech that have been discussed separately in other works. Features selection and dimensionality reduction techniques are applied to find the features subsets that best estimate the emotional primitives Valence, Activation and Dominance. Finally, the emotional primitives are estimated using different classifiers based on the proposed features getting better results than the ones previously reported on related works.

Features selection for primitives estimation on emotional speech
Pérez-Espinosa, Humberto; Reyes-García, Carlos A.; Villaseñor-Pineda, Luis
Congreso
Graphical Technique to Support the Teaching/Learning Process of Software Process Reference Models
Ismael Edrein Espinosa Curiel, Josefina Rodríguez Jacobo, José Alberto Fernández Zepeda
Congreso
2010
LIGA
Congreso: EuroSPI 2010
Resumen

In this paper, we propose a set of diagrams to visualize software process reference models (PRM). The diagrams, called dimods, are the combination of some visual and process modeling techniques such as rich pictures, mind maps, IDEF and RAD diagrams. We show the use of this technique by designing a set of dimods for the Mexican Software Industry Process Model (MoProSoft). Additionally, we perform an evaluation of the usefulness of dimods. The result of the evaluation shows that dimods may be a support tool that facilitates the understanding, memorization, and learning of software PRMs in both, software development organizations and universities. The results also show that dimods may have advantages over the traditional description methods for these types of models.

Graphical Technique to Support the Teaching/Learning Process of Software Process Reference Models
Ismael Edrein Espinosa Curiel, Josefina Rodríguez Jacobo, José Alberto Fernández Zepeda
Congreso
Modelling human behaviour at work: an agent-based simulation to support the configuration of work teams
J. Martínez-Miranda
Tesis
2010
LIGA
Universidad: Universidad Complutense de Madrid
Resumen

The modelling and implementation of human behaviour into artificial systems have attracted the interest of several people from different disciplines given the natural complexity and multidisciplinary of this phenomenon. This type of models offers a great potential in a large set of domains including military applications, training and learning, e-health, and the representation of crisis and emergency situations among others. A particular interesting application is the modelling of human behaviour within groups. More specifically, the model of human behaviour in a work team would be used to analyse the specific dynamics behind individual and work team performance. The analysis of these dynamics then can be used as additional and useful information that supports the decision-making in the formation and configuration of real work teams in companies.

The work described in this thesis presents a novel agent-based simulation model that aims to support this decision-making process. This global objective is achieved through the modelling of the team candidates as software agents forming a virtual team. The configured virtual team then can be used to experiment with the internal and contextual factors that produce and direct the individual and work team performance. The real team candidates are modelled through a set of selected human characteristics that have been proved to influence human behaviour when making work activities in a work team. These characteristics include cognitive capabilities, emotional state, personality styles and social-related skills. Using the values in these attributes in combination with values represented in the attributes of project's tasks, the model produces statistical information that represents the possible performance of the teammembers over the assigned project. The theoretical background of the model is presented through a deep review of existing (mainly psychological, sociological and organisational) theories focused in the study of human behaviour within the particular context of teams.

The work presented in this thesis uses the findings from this theoretical research to implement the main characteristics of the proposed agent-based model and to further develop a usable software simulation tool. This tool has been used to validate the proposed model through the comparison of the work team's performance results generated by the simulation tool against the performance evaluation results of a real work team from a large company. The validation results and the identified open issues to improve the model are also presented in the final part of this thesis document.

Modelling human behaviour at work: an agent-based simulation to support the configuration of work teams
J. Martínez-Miranda
Tesis
2009
Detection of negative emotional state in speech with anfis and genetic algorithms
Pérez-Espinosa, Humberto; Reyes-García, Carlos A.
Congreso
2009
LIGA
Congreso: 6th International Workshop on Models and Analysis of Vocal Emissions for Biomedical Applications
Resumen

In this work we present the design of an Automatic Emotion Recognizer which tries to take advantage of three soft computing techniques: Neural Networks, Fuzzy Inference Systems and Genetic Algorithms in order to identify and classify emotions from speech signal. The classification is done between two emotional states: Negative and Idle. The emotion recordings used for this work belongs to the FAU AIBO database, where children interacting with Sony's pet robot Aibo were recorder. We propose and analyze the use of 18 acoustic features. A classification system based on ANFIS is implemented. Genetic Algorithms are used to select features and tune the ANFIS configuration settings. System implementation and some experimental results are shown.

Detection of negative emotional state in speech with anfis and genetic algorithms
Pérez-Espinosa, Humberto; Reyes-García, Carlos A.
Congreso
2004
Formación de grupos de desarrollo de software. Un enfoque psicosocial
Josefina Rodríguez Jacobo
Libro
2004
Libro: Formación de grupos de desarrollo de software. Un enfoque psicosocial
Prólogo

Al terminar de leer el libro que ahora presento, me evocó la imagen de un puente que une dos riberas y que a lo largo de la historia del hombre de la modernidad han avanzado separadas, cada una por su lado: el mundo de la razón técnica emparentada con las ciencias duras y el universo de la razón afectiva vinculada con las ciencias humanas, ciencias sociales o humanidades.

Los cimientos que sostienen el puente en las orillas son sólidos: por un lado, Josefina Rodríguez cuenta con una formación en física y en ciencias de la computación, por el otro en psicoterapia guestalt y psicoterapias existenciales. Su nivel, incuestionable: licenciatura, maestría y doctorado.

La obra deja ver que el hombre tiende a formar grupos y teóricamente se sabe que hay que alimentar la creación de los mismos, empero en la práctica se fomenta lo individual tal como lo expresan las palabras que aparecen en la introducción del escrito: "…el desarrollo tecnológico ha propiciado un ambiente competitivo en el que predomina el trabajo individual".

Este documento resaltar la importancia de revalorar lo grupal. No es posible caminar en una visión egoísta y terriblemente competitiva como la que se fomentó y se sigue propiciando en muchos lugares. Es necesario avanzar hacia una visión que privilegie lo grupal y lo colaborativo. Ese humanismo centrado en el yo generó un individualismo insostenible. Ya no se puede mantener la costumbre que postula el quehacer de grupo en su discurso y en su práctica ensalza las tareas individuales con lo que mata el valor del trabajo, ya que el aislamiento borra el sentido para qué se realiza una labor. El trabajo sólo tiene sentido a la luz de la comunidad a la que pertenece.

También era fundamental enfrentar una realidad: la celeridad que promueve la mirada técnica a través de su instrumento: la máquina, hasta el grado de la autoprogramación. Así pasó esta faena del quehacer artesanal al industrial y mostró además, gracias a la socialización del producto y el abaratamiento del mismo, que se fortaleció su expansión, lo cual obligó al productor a un tratamiento novedoso: se requiere el uso de técnicas y métodos adecuados para solucionar la enorme variedad de problemas que se derivan de las aplicaciones en donde se desarrollan sistemas de software de gran tamaño.

El avance en este terreno plantea algunos peligros que hay que enfrentar. La escritora los menciona sin tapujos y se desprende de su reflexión que resaltan tres errores de la administración: 1) olvida al ser humano, 2) no se comunica con el participante y le aporta una solución elegante para un problema equivocado, y 3) no presta atención al proceso y cae en un grave riesgo: arrojar métodos técnicos y herramientas eficaces al vacío. Descuella el peligro del desperdicio.

La autora unió su formación a favor de una tarea primordial, que en sus palabras reza así: "a través de mi experiencia he llegado a formular un modelo de intervención educativa para formar grupos de desarrollo de software". El objetivo de la obra aparece con toda claridad: determinar los elementos o factores que permiten generar una guía para la formación de un grupo de desarrollo de software. Sin lugar a dudas, una obra educativa. En esta perspectiva este libro es una aportación a la pedagogía, específicamente a la didáctica de la especialidad. La misión, que aparece documentada en esta obra, es una historia que se concreta desde finales de 1995 hasta 2002 con grupos controlados a través de técnicas de sensibilización. En el capítulo octavo plantea claramente qué tipo de grupo quiere construir y afirma que es reducido, que sus miembros están dispuestos a adoptar o intercambiar roles y funciones con flexibilidad, de acuerdo con un procedimiento y que disponen de habilidades para manejar un proceso socio-afectivo en un clima de respeto y confianza.

Una nueva señal apareció en el camino: la relevancia de lo emocional

A partir del avance de la razón técnica y su proyecto matemático de la naturaleza se expatriaron las emociones del mundo del hombre. El hombre del siglo veintiuno es hijo de más de quinientos años de un aprendizaje esforzado para mostrar su existencia a partir de la conciencia que piensa, y este pensar debe ser cierto, esto es claro y distinto. Este escrito muestra que puso la semilla para que vuelvan a florecer las emociones en el mundo de la vida y rescatar al hombre-máquina de la mirada técnica que lo atrapa y lo encajona. Este libro manifiesta la implementación de un diseño que fomenta la vivencia de las emociones sin descalificar la formalidad científica ni la fuerza de la lógica del pensamiento, y trata de alimentar la calidad en la ingeniería de software sin olvidar la vida que florece en los seres humanos que la alimentan.

Con esta investigación se puede plantear con precisión que el trabajo de software se encuentra dentro de los modelos de afán que requieren de una labor en grupo: son varias personas reunidas para alcanzar un fin determinado, existen ciertas normas para alcanzarlo, existen diferentes posiciones y roles con distintas tareas. La tierra en donde se sembró la simiente para la formación de estos grupos era un terreno fértil y disponible: el acceso al campo de estudio abrió sus puertas al sugerirse el curso de Ingeniería y Metodología de la Programación en el posgrado de Ciencias de la Computación en el Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE).

Para poder avanzar en el modelo del diseño, la creadora del modelo se basó en Kart Lewin, psicólogo de la guestalt como uno de los creadores de la teoría de grupos, y en la psicoterapia guestalt iniciada por Fritz Perls, Laura Perls y Paul Goodman, para fortalecer el desarrollo psicosocial de las personas que integran los grupos. Con estos dos enfoques teórico-prácticos se instrumentó el trabajo con los grupos que cubrió tres acciones: 1) técnicas de sensibilización hacia el estado anímico, el comportamiento, la observación de sus limitaciones y el establecimiento de fronteras, 2) sesiones terapéuticas, y 3) técnicas grupales para fortalecer el grupo.

El trabajo de grupo resultó significativamente valioso y permitió hacer acopio de una gran cantidad de técnicas que fomentaban la emergencia de la dinámica de grupo. La vida de un grupo avanzó en medio de esa didáctica novedosa de aprendizaje que facilitó el crecimiento de las personas en su vida emocional al mismo tiempo que lo hacían su pensamiento. Un buen número de estas técnicas grupales aparecen descritas por estas páginas y son una estupenda aportación para la labor docente de los catedráticos que deseen utilizarlas y ponerlas al servicio de sus estudiantes.

La Dra. Rodríguez fungió como facilitadora del grupo con orientación guestalt y dio testimonio de las características que les acompañan como la importancia que juegan en la conducción de los ejercicios creativos para propiciar el crecimiento de las personas, ser quien toma la iniciativa en la formación de los experimentos de aprendizaje para favorecer la intensificación de la vivencia y aumentar la conciencia de los estímulos verbales y las conductas de evitación, ser quien guía las acciones para favorecer las interacciones en el grupo, ser quien toma la batuta en correr riesgos ante la confrontación de los miembros del grupo, estar abierto a sus sentimientos personales y no ocultarse tras la máscara del profesional. La meta primordial de los guestaltistas es mostrarse auténticos en las vivencias con el grupo.

Con estos avances en los estudiantes en formación, se puede plantear que para enfrentar los conflictos hay que tomar en cuenta el enfoque personal y la óptica de la organización con su entorno. La encrucijada se cierra así: se enfrenta el conflicto de manera directa o se le evita. Es primordial estar conciente de la situación real y el único modo de hacerlo es conciliar lo personal con lo organizacional. El planteamiento es: ¿existe un costo personal?, ¿existe un costo organizacional?, ¿éstos pueden cuantificarse? Si las respuestas son sí, es preciso manejar el conflicto. Si no, se requiere realizar una nueva reflexión sobre los diferentes enfoques.

El enfoque guestalt fue un elemento clave en la capacitación de los estudiantes, ya que con su estilo de confrontación y hábil frustración, preparó a los formandos a enfrentar el conflicto de una manera creativa y no evadirse o huir de él. Aprender a pararse en sus propios pies les permitió poder levantar la frente y mirar cara a cara los conflictos y no esconder la cabeza bajo tierra. Estaban formados para afrontar el reto.

Finalmente las balaustradas que resguardan el puente por cada lado son el método fenomenológico y el método hermenéutico, y ambos quedan fuertemente amarrados por el método de teoría fundamentada en que la autora se ha vuelto experta y dejó solidamente expuesto que el fin de la misma es su énfasis en la generación de la teoría, faena que para la institución en donde labora, el producir teoría, es fundante del trabajo didáctico y operacional.

Esta obra es hija de un gran esfuerzo personal que llevó a Josefina Rodríguez a probar en ella misma las bondades del crecimiento personal, del esfuerzo por unir la labor intelectual con el quehacer del corazón, y a su vez, entrelazar sus dos profesiones: la computación y la psicoterapia. Este documento despierta la alborada con los primero rayos de luz para que las huellas del homo ratio y el homo amans se tomen de la mano y caminen en la misma dirección.

Invito a los lectores a seguir este diálogo transdisciplinario en el que los saberes del hombre se abrazan para poner sus avances al servicio de la persona.
Espero que el documento despliegue sus alas y el lector vuele por las nuevas posibilidades que despierta.

Miguel Jarquín

Formación de grupos de desarrollo de software. Un enfoque psicosocial
Josefina Rodríguez Jacobo
Libro