Papers by Luz A. Sánchez-Gálvez
Tecnología educativa, Jan 2, 2021
Resumen. Actualmente, las propuestas de desarrollo en el ámbito educativo se centran en el Aprend... more Resumen. Actualmente, las propuestas de desarrollo en el ámbito educativo se centran en el Aprendizaje Colaborativo Soportado por Computadora (Computer Supported Collaborative Learning, CSCL), donde los estudiantes aprenden mediante un proceso de planteamiento y compartición de ideas para la resolución de tareas; beneficiándose con el diálogo y la reflexión de las propuestas de sus compañeros. Esto ha incrementado el uso de CSCL, tales como MOODLE, Blackboard, ILIAS, Edmodo y Schoology. Sin embargo, algunos de éstos suelen tener costo, otros requieren que los administradores tengan conocimientos de programación para adaptarlos a las distintas necesidades de la institución que los utiliza y/o deban ser configurados de forma especial para obtener su máximo provecho. Por consiguiente, en este trabajo de investigación se propone una plataforma colaborativa basada en un enfoque constructivista social que simplifique, agilice y facilite la gestión académica en una institución de educación superior.
Research in Computing Science, Dec 31, 2016
The process of groupware development can be founded on the conceptual modeling of group interacti... more The process of groupware development can be founded on the conceptual modeling of group interaction, since the interaction determines how the group members communicate, collaborate, and coordinate in order to perform some tasks-in accordance with the roles; users can play-to achieve a common goal. Therefore, in this paper a formalism to model the group interaction is proposed, this approach is inspired by formalisms that have been developed within this context: an ontology of the session management policy, which establishes the group organizational structure, in terms of the roles that users (group members) will play; an Model-View-Controller architectural pattern, which establishes a set of recommendations to facilitate the process of groupware development; and a Methodology that supports the process of ontologies development, by using a set of tasks, allowing us to simplify this process. The formalism to analyze and design the interaction in a shared workspace, is composed by the following modeling: 1) Role Modeling; 2) Interaction Modeling; and 3) User Interface Modeling. Finally, a proof of concept based on a case study is presented.
Ontology-Based Modelling of Session Management Policies for Groupware Applications
Springer eBooks, Nov 16, 2007
Groupware applications support group work and groups may perform geographically distributed with ... more Groupware applications support group work and groups may perform geographically distributed with different roles and using different organizational structures. It is important that these applications do not provide only the needed infrastructure to support group work, but also grant some ways to change the group behaviour during a session. Therefore, this paper presents a conceptual model of the session management
Research in Computing Science, Dec 31, 2016
The workflow model represents the set of steps performed by different entities and their executio... more The workflow model represents the set of steps performed by different entities and their execution ordering to control and manage the carried out process on organization. In which, the structure organizational determines the division of labor in order to persons perform the organization process in an appropriated manner. In collaborative applications, this structure determines how the interaction among users, as well as between the users and the application, are carried out. For this reason, a workflow to manage the group organizational structure will be ideal. Although, workflow lacks the expressive power to represent the domain knowledge and the sequence of operations. An ontology describes the knowledge domain through concepts, relations, axioms and instances, but ontology does not specify how these entities should be used and combined. Therefore, in this paper a workflow ontology to control the group organizational structure is proposed. A case study is presented to show the use of knowledge-based workflow ontology for this structure.
SAMCA: Service-based Architectural Model for Collaborative Applications
ABSTRACT This paper proposes a Service based-Architectural Model for Collaborative Applications (... more ABSTRACT This paper proposes a Service based-Architectural Model for Collaborative Applications (SAMCA), which allows us to develop this type of applications as well as to adapt them to different collaborative scenarios. A collaborative application may be represented by five concerns according to SAMCA. These concerns are represented as layers in the proposed model. Therefore, it contains Data Layer, Group Layer, Cooperation Layer, Application Layer, and Adaptation Layer. Each layer is made-up of services and/or modules, which supply the necessary elements to build any collaborative application. The architectural model proposed in this work, uses SOA (Service-Oriented Architecture), to specify each service of SAMCA, and allows reutilization, and adaptation of the developed collaborative application. The construction of a Conference Management System (CMS), is presented as a case study to show the SAMCA usefulness.
In the organizations, the groupwork is determined by an organizational structure that is governed... more In the organizations, the groupwork is determined by an organizational structure that is governed by a set of rules that establish its configuration. This configuration can change in accordance with tasks and group needs at a given moment. It is very important that the groupware applications can adapt dynamically to cope with changing organizational structure conditions and unexpected system errors. This paper presents, on the one hand the ontology-based modelled of the group organizational structure in the groupware applications; the ontology takes into account the dynamic aspects of the group organizational structure to adapting to different changes. On the other hand, the adaptation process that allows to adapt dynamically group organizational structure in the groupware applications. This process adjusts the application functionality by the user's direct intervention (adaptable process) and automatically (adaptive process); thus we show two cases studies for each type of adaptation.
Facilitating Access Control at Groupwork by Means of an Ontology of Its Organizational Structure and Concept of Stage
In the groupware applications one of the principal aims is to supply a common context, so the mor... more In the groupware applications one of the principal aims is to supply a common context, so the more information gets shared, the more easily common context can be achieved. However, the sharing of information in this type of applications leads to provide security mechanisms. Controlling the access to resources and activities is a key element in system security. In this
Policy-based Group Organizational Structure Management using an Ontological Approach
The policies provide the flexibility and autonomy necessary to regulate an environment, determini... more The policies provide the flexibility and autonomy necessary to regulate an environment, determining their behaviour according to a set of rules. They allow dynamically specifying behaviour of a system, which can be easily modified without the need for substantial changes of the structure or implementation environment. The policy-based systems management requires an appropriate policy specification. An ontology-based policy specification simplifies
previous years, this time we have extended our interest to include more general topics related to... more previous years, this time we have extended our interest to include more general topics related to Computer Science. We use the LA acronim of LANMR to stand both for Languages/Logic + Algorithms, as well as for "Latin America". There were 18 submissions. Each submission was reviewed by at least 1, and on the average 2.7, program committee members. The committee decided to accept 8 papers. The program also includes no invited talks. This edition of the workshop has been organized by The Autonomous University of Mexico State, UAEM (La Universidad Autónoma del Estado de México). The aim of the workshop was to bring together active researchers in formal areas of Computer Science (CS) such as Logic, Formal languages, Algorithms, and Non-Monotonic Reasoning. Particular topics of interest were: knowledge representation, belief revision, reasoning about actions, planning, logic programming, causality and algorithms complexity. In Latin America there are research groups interested in these areas. The number of papers and workshops submitted to different congresses related to Computer Science, such as IBERAMIA, ENC and MICAI, provides evidence of such interest. As a result, LANMR Workshop is designed to promote cooperation among practitioners and researchers across disciplines who are interested in the formal areas of Computer Science. The aims of the workshop were to:
Digital Libraries are information systems that allow managing and preserving digital resources, a... more Digital Libraries are information systems that allow managing and preserving digital resources, as well as providing access to them. The designing of these kinds of systems should always be completed having in mind the users. Accordingly, it is of outmost importance that the user interface presents a high level of usability. In this paper, a usability evaluation methodology of Digital Libraries is proposed; specifically for the Web site of Academic Digital Libraries. The methodology offers a evaluation instrument that collects the users' perceptions through four dimensions (effectiveness, efficiency, satisfaction and learnability). In addition, the gap theory of quality service is employed and a fuzzy linguistic approach using aggregation operators, which operate directly with words (linguistic information) is applied. Therefore, the methodology shows to be a significant, innovative contribution to the research area on usability evaluation of digital libraries. It can be useful for both an academic library Web site and an operational digital library. A case study is presented in order to demonstrate the usage of usability evaluation methodology of digital library.
Research in Computing Science, Dec 31, 2015
This paper presents a software architecture-based methodological approach to develop collaborativ... more This paper presents a software architecture-based methodological approach to develop collaborative applications. Today, the use of collaborative applications has spread to various domains, as they facilitate communication, collaboration, and coordination between several users. These applications require mechanisms to support and model communication activities and processing of information, vital in the dynamic nature to the group. In this paper, the use of a software architecture is recommended to develop collaborative applications. This architecture for specifying the structure and behavior through the application, providing a shared meeting space to simplify and agile the group work. Thus, it is possible to support dynamic group structure. In addition, specification tables are proposed to simplify the development of this kind of applications; since the developers to complete the table are analyzing the necessary elements required to build an application, so performing requirements analysis, design, and displayed as would the final application. A case study to validate the software architecture is proposed.
Research on computing science, 2020
Resumen. En el dominio de Groupware, la interacción es esencial entre los actores (usuarios) y lo... more Resumen. En el dominio de Groupware, la interacción es esencial entre los actores (usuarios) y los recursos compartidos, para alcanzar la meta común propuesta. La conciencia de grupo debe estar presente en este contexto, ya que permite a cada actor ser consciente de lo que hacen otros en el espacio compartido. Consecuentemente, esta conciencia debe ser dinámica, adaptarse a las necesidades cambiantes del grupo, detallarse de manera formal y explícita. Por ello, se requiere un enfoque basado en políticas para ajustarse continuamente a las condiciones internas y externas del sistema. Por tanto, este artículo propone un enfoque semántico de políticas para gestionar la conciencia de grupo; que está apoyado en una ontología, para describir, representar y adecuar las políticas de una manera explícita y formal. Este enfoque plantea políticas de Persona, Labor y Lugar para, gestionar adecuadamente la conciencia de grupo en Groupware. Finalmente, un caso de estudio se presenta para aplicar el enfoque propuesto.
Methontology-based Ontology Representing a Service-based Architectural Model for Collaborative Applications
Research on computing science, 2011
A Groupware Usability-Oriented Evaluation Methodology Based on a Fuzzy Linguistic Approach
Communications in computer and information science, 2019
Nowadays, many organizations or groups of persons must carry out group work effectively. Groupwar... more Nowadays, many organizations or groups of persons must carry out group work effectively. Groupware typically provides a shared workspace, which is displayed through shared user interfaces by group members, with appropriate resources to accomplish a common task. Consequently, an adequate design and development of groupware requires that the shared user interfaces offer a high level of usability for the users’ interaction and the utilization of the shared resources. In this paper, a groupware usability evaluation methodology, specifically for the shared user interfaces, is proposed. This methodology provides an evaluation instrument that collects the users’ perceptions through four dimensions—effectiveness, efficiency, learnability and satisfaction—In addition, the gap theory of quality service, and a fuzzy linguistic approach using aggregation operators—which operate directly with words—are applied. Accordingly, the methodology shows to be a significant, innovative contribution to the research area on groupware usability evaluation. A case study to validate methodology, is presented.
Engineering Letters, Apr 1, 2015
Given that knowledge is a portion of all human activities, it is necessary to store it-seizing it... more Given that knowledge is a portion of all human activities, it is necessary to store it-seizing its meaningorganize it and make it available. So, it requires a representation scheme to provide a set of procedures, which allows the knowledge, to be stored, organized, and to represent the problem naturally. In such a way, a knowledge base can be produced. The representation scheme must be denoted by a model of some domain of interest in which symbols assist as substitutes for real world artifacts. These symbols must be stored as interest domain statements. In this work, the model used is a workflow ontology. This proposal specifies the set of steps-along with their order of execution-performed by different symbols to develop collaborative applications. Ontology is one of the strategies for the structured representation of a chosen knowledge domain in a formal way, which removing ambiguity and redundancy, detecting errors, and allowing automated reasoning. A case study is presented to show the use of a workflow ontology as a knowledge base for the development of Collaborative Applications.
Platform to supports learning based on Social Network, Web Intelligence and CSCL
This paper presents a Collaborative Learning Platform (we have denominated in spanish Red Académi... more This paper presents a Collaborative Learning Platform (we have denominated in spanish Red Académica Colaborativa Institucional -RACI), which is based on methodologies used in Social Network, Web Intelligence, and CSCL (Computer Supported Collaborative Learning). ...
Computación Y Sistemas, Mar 30, 2018
In CSCW (Computer Supported Cooperative Work), managing the group's organizational structure allo... more In CSCW (Computer Supported Cooperative Work), managing the group's organizational structure allows to control how the group members communicate, collaborate, and coordinate, to achieve a common goal, in order to benefit an organization or a community. Consequently, establishing an appropriate model of this structure's management is very important, as it can be used as a guide for implementing these kinds of systems. This modeling must be flexible enough, so that it can conform itself to changes within the group and to adjust to the different working styles of several groups, as well as to formally support a base of knowledge; helping to eradicate any ambiguity or redundancy. Therefore, this modeling must formally provide a knowledge representation in order to specify the elements and to control the set of orderly steps on an organizational structure. Thus, a workflow ontology to control such a structure is proposed in this paper. Since, the workflow manages and controls the process, via a set of steps ordered and executed by different organization entities, whereas the ontology specifies the domain of knowledge through concepts, relations, axioms, and instances in a formal, explicit, way. A case of study, to demonstrate the knowledge management of the group's organizational structure, through workflow ontology is shown.
Resumen Una aplicación colaborativa apoya a un grupo de personas alcanzar conjuntamente un objeti... more Resumen Una aplicación colaborativa apoya a un grupo de personas alcanzar conjuntamente un objetivo común a través de una interfaz de usuario compartida; siendo utilizadas estas aplicaciones en el ámbito educativo (e-learning), de comunicación (videoconferencias) de entretenimiento (redes sociales), de gestión (compartir archivos) y en muchos otros. Esta interacción entre los miembros del grupo implica una gran cantidad de peticiones (incluyendo concurrentes) de cada uno a la aplicación y entre ellos. Lo que implica realizar un manejo adecuado de las mismas para una pronta y adecuada respuesta. Por tanto, en este artículo se plantea desarrollar una aplicación colaborativa para la gestión de protocolos de tesis, funcionando como una API colocada en una Raspberry PI, que será el servidor; para gestionar el almacenamiento, peticiones y respuestas de información de una manera simple y económica tanto para dispositivos moviles como aplicaciones en la Web. Palabras Clave: API, aplicación ...
Pistas Educativas, Dec 10, 2020
El reconocimiento automático de voz es una disciplina de la inteligencia artificial, que tiene co... more El reconocimiento automático de voz es una disciplina de la inteligencia artificial, que tiene como objetivo permitir la comunicación hablada entre seres humanos y computadoras. Este artículo propone un sistema de reconocimiento de voz, basado en la extracción de características distintivas de la voz y el método de aprendizaje supervisado, denominado algoritmo k-NN (k-Nearest Neighbors), que requiere del entrenamiento del sistema. Así como se plantea calcular automáticamente por medio de la correlación de Pearson, para que el sistema de reconocimiento de voz sea más del algoritmo k-NN. Finalmente, se evalúa el sistema con voces de personajes conocidos para centrarse en la eficiencia del sistema.
Pistas Educativas, Nov 29, 2020
Al visitar un museo, la información completa sobre una obra de arte puede requerirse; sin embargo... more Al visitar un museo, la información completa sobre una obra de arte puede requerirse; sin embargo, a un lado de esta sólo se encuentran su nombre y del artista. Por tanto, en este trabajo se presenta el análisis y reconocimiento una obra de arte mediante la fotografía tomada con el celular del visitante, así como la recuperación de los datos más relevantes de la misma. De tal manera, que se obtenga la información completa en ese momento. Esta propuesta resulta importante para cualquier persona interesada en la cultura o que simplemente sienta curiosidad por una obra de arte. Consecuentemente, la aplicación resultante se puede ofrecer como un servicio en la nube a todas estas personas, con un tiempo brought to you by CORE View metadata, citation and similar papers at core.ac.uk provided by Instituto Tecnológico de Celaya: E-Journals
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Papers by Luz A. Sánchez-Gálvez