Oswaldo Terán

Oswaldo Terán
Universidad Católica del Norte (Chile) · Escuela de Ciencias Empresariales

Phd Computational Modelling

About

78
Publications
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220
Citations
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November 1992 - present
University of the Andes (Venezuela)
Position
  • Professor (Full)

Publications

Publications (78)
Article
This work suggests to complementarily use Multi-Fuzzy Cognitive Maps (MFCM) and Multi-agent Based Simulation (MABS) for social simulation studies, to overcome deficiencies of MABS for contextually understanding social systems, including difficulties for considering the historical and political domains of the systems, variation of social constructs...
Preprint
Full-text available
Chinese cross-border e-commerce has become the largest in the world, overtaking US e-commerce and representing about 40% of total global e-commerce spending in 2018. This market is highly complex, uncertain, and poorly understood. Surveys and statistics have been used to characterize it, but new approaches are required to better understand its comp...
Article
Full-text available
Chinese cross-border e-commerce has become the largest in the world, overtaking US e-commerce and representing about 40% of total global e-commerce spending in 2018. This market is highly complex, uncertain, and poorly understood. Surveys and statistics have been used to characterize it, but new approaches are required to better understand its comp...
Article
This article analyzes, through a computer social simulation model (i.e., the SocLab framework), the complex interactions between altruism, tenacity, the need or the importance of a resource, in particular a common resource (stake), and the number of actors and their impacts on cooperation within a system of organized action. It contributes to bette...
Article
Full-text available
El sistema de producción de papa venezolano sufre de diversas deficiencias, las cuales pueden ser reducidas si se cuenta con buenas herramientas de modelado para estudiar el sistema y explorar configuraciones o escenarios alternativos que informen la toma de decisiones y la política pública. Esto puede ser realizado utilizando herramientas y teoría...
Chapter
The Venezuelan system of potato and potato seed production endures many deficiencies, while potatoes used to be an essential component of inhabitants’ food. To discover the deep roots of these deficiencies, we propose a simulation model of this system, and then combine structural properties of the model with simulation results in order to consolida...
Article
The conformation of opinion in a society is analyzed in diverse studies, following diverse perspectives, methods and tools. Previous studies are basically descriptive, predictive, and not aiming at modeling the real situation. In this paper, we present a preliminary model representing the process of conformation of public opinion from the perspecti...
Article
Full-text available
Resumen La influencia de los medios de comunicación social en la opinión pública es amplia y moldea gran parte de los constructos y comportamientos sociales. Este trabajo presenta una descripción del proceso de influencia y control de los medios de comunicación social en la opinión pública. La misma se fundamen-ta en elementos cognitivos, psicológi...
Article
Full-text available
In this paper, we propose a Fuzzy Cognitive Map (FCM) to opinion mining, with special attention to media influence on public opinion. Particularly, in this paper, we describe the FCM, the concepts and relationships among them. Our opinion mining model is based on a multilevel FCM, to distribute the concepts according to the aspects that describe th...
Conference Paper
The Venezuelan system of potatoes and potato seeds production endures many deficiencies, while potatoes use to be a basic component of inhabitants’ food. To uncover the deep roots of these deficiencies, beyond the lack of commitment of certain actors, we proposes a simulation model of this system and combine structural properties of the model with...
Article
Full-text available
Purpose – The purpose of this paper is to present how to model moral sensitivity and emotions in organizational setting by using the SocLab formal framework. SocLab is a platform for the modelling, simulation and analysis of cooperation relationships within social organizations – and more generally Systems of Organized Action. Design/methodology/a...
Chapter
Full-text available
This chapter describes an autochthonous system of Knowledge, Science, and Technology (KST): its actors, policies, strategies, and instruments. It is proposed to create it via a continuous reflection-action process. Such a system is aimed at promoting an autonomous nation, and will strongly rest on culturally free KST, beyond its actual conception (...
Chapter
Full-text available
Mass media (e.g., TV) and social media (e.g., Facebook) have a large utilization nowadays; they are becoming an integral part of our life. This chapter describes the psychological effects of media bias and manipulation, along its impact on public opinion by using " agenda setting " and " prototypes/framing ". It shows how media can artificially cre...
Book
Open access to information resources and technology can have a profound impact on the economic development of a region as well as society in general. In recent years, reaction against proprietary knowledge and technology has led to tremendous debate both in academic and professional circles. Societal Benefits of Freely Accessible Technologies and K...
Chapter
Full-text available
Mass media (e.g., TV) and social media (e.g., Facebook) have a large utilization nowadays; they are becoming an integral part of our life. This chapter describes the psychological effects of media bias and manipulation, along its impact on public opinion by using "agenda setting" and "prototypes/framing". It shows how media can artificially create...
Article
A major endeavor of ecology is to understand the emergence of complexity. This task requires the integration of knowledge and theories, moving from physical to social sciences. We use genetic programming to develop mathematical relationships between ecological emergence and variables such as self-organization, homeostasis, autopoiesis and complexit...
Article
Full-text available
The paper presents how moral sensitivity and emotions are modeled in organizational setting by using the SocLab formal framework. Additionally simulation results, including an interesting tendency for a Free Rider model, will be given. SocLab is a platform for the modeling, simulation and analysis of cooperation relationships within social organiza...
Article
Full-text available
Actors within an organization usually do not behave as expected at design-time. There are diverse reasons for this, notably the actors’ motivation and organizational commitment. In this paper, we explore the efficiency of a concrete public organization in the context of the Latin-American culture, to the light of the organizational commitment of it...
Conference Paper
Full-text available
Emotions play an essential role in the behaviour of human beings, either at their sudden occurrence or by the continuous care to prevent the occurrence of unpleasant ones and to search for the occurrence of pleasant ones. Notably, in any system of collective action, they influence the behaviours of the actors with respect to each others. SocLab is...
Data
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Article
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This work models Wikipedia and Free Software Development through a mul-tiagent architecture for self-organizing and emergent systems called MASOES without mathematically representing the system. In that sense, each component, mechanism and process of MASOES is instanced at individual and collective levels by the observed phenomena at the modeled sy...
Article
Full-text available
This work models Wikipedia and Free Software Development through a mul- tiagent architecture for self-organizing and emergent systems called MASOES without mathematically representing the system. In that sense, each component, mechanism and process of MASOES is instanced at individual and collective levels by the observed phenomena at the modeled s...
Article
Full-text available
MASOES is a 3agent architecture for designing and modeling self-organizing and emergent systems. This architecture describes the elements, relationships, and mechanisms, both at the individual and the collective levels, that favor the analysis of the self-organizing and emergent phenomenon without mathematically modeling the system. In this paper,...
Conference Paper
Full-text available
En busca de lograr una representaci ́on de los sistemas din ́amicos (SD) con un mayor nu ́mero de propiedades que faciliten su an ́alisis, este trabajo presenta las nociones nece- sarias para la definici ́on de un SD con las propiedades emergentes de auto-organizaci ́on, homeostasis y autopoi ́esis. A partir de ello, se definen los elementos prelim...
Article
Full-text available
In this work an affective model is proposed for the modeled of agents through MASOES. Each agent could change its behavior dynamically, guided by its emotional state for satisfying the objectives of the system dynamically through the self-organization of its activities. This affective model allows to MASOES to reach a commitment between the individ...
Article
The National Center for Research and Development of Free Technologies (CENDITEL) was born under a vision different from traditional organizational paradigms in Venezuela. This paradigm is based on participation and collaborative work, which seeks a change towards a critical attitude about technology. In this paper, indicators will be designed and a...
Article
Full-text available
MASOES is a multiagent architecture for designing and modeling self-organizing and emergent systems. The architecture describes the elements, relationships and mechanisms, both at the individual and the collective levels, which determine the self-organizing and emergent phenomena, without mathematically modeling the system. In this work is tested a...
Article
Full-text available
The proper study of Dynamical Systems (DS) considers phenomenal dynamics, from which it is possible to reach an approximate description of its operation and an explanation for their behavior, often complex and unpredictable. Studying dynamic systems (DSs) currently requires an integrated framework of concepts, which should allow analysis from a bro...
Article
Full-text available
This paper presents a land use/land change model in forest reserves considering social factors and using Multi Agent-based Simulation (MABS) and cell automata. It is inspired by the Caparo Forest Reserve (RFC) in western Venezuela. The model aims at helping to better comprehend the land occupation process at different forest reserves in Venezuela a...
Article
Full-text available
En este artículo se explora, desde una idea de Desarrollo Endógeno, entendido como despliegue del quehacer social en armonía con el entorno donde ese quehacer tiene lugar, los modos en que las dimensiones de ese desarrollo deben ser consideradas en aras de propiciar el desarrollo de una potencialidad local. Para ilustrar el desarrollo de esta línea...
Article
Full-text available
In this work, we present a methodological framework for the analysis and evaluation of technologies and methodologies for the development of applications in the area of Industrial Automation. This methodological framework is required in the final phase of a context oriented methodology to implement of a previous technological prospective proposal....
Article
Full-text available
In this work, we present a methodological framework for the analysis and evaluation of technologies and methodologies for the development of applications in the area of Industrial Automation. This methodological framework is required in the final phase of a context oriented methodology to implement of a previous technological prospective proposal....
Chapter
This chapter presents a methodology used as reference model for a free software factory that is part of the National Centre for Free Technologies in Venezuela. This centre is oriented at promoting free software development for serving mostly the public sector in order to promote endogenous development and technologic autonomy. Under this strategy,...
Chapter
This chapter presents a methodology used as reference model for a free software factory that is part of the National Centre for Free Technologies in Venezuela. This centre is oriented at promoting free software development for serving mostly the public sector in order to promote endogenous development and technologic autonomy. Under this strategy,...
Article
Full-text available
Este trabajo presenta una metodología para el desarrollo de ejercicios de prospectiva tecnológica, desarrollada durante la conceptualización de la plataforma tecnológica de automatización de una organización pública venezolana. La propuesta presenta el conjunto de pasos necesarios para realizar ejercicios de prospectiva tecnológica, conceptualizado...
Article
Full-text available
This work is aimed at presenting and exemplifying a methodology for performing exercises of technologic prospective. Such a methodology was developed in a practical application for conceptualizing the automation technological platform of a Venezuelan public organization. The paper focuses on describing the sequence of steps necessary for such an ex...
Article
Full-text available
Mecanografiado Tesis (Ing. de Sistemas) -- Universidad de Los Andes, Facultad de Ingeniería, Escuela de Ingeniería de Sistemas, Mérida, 2008 Incluye bibliografía
Conference Paper
Full-text available
This work investigates the trade-off between individual and collective behavior, to dynamically satisfy the requirements of the system through self-organization of its activities and individual (agent) adaptability. For this purpose, it is considered that each agent varies its behavioral laws (behavior-switching) dynamically, guided by its emotiona...
Chapter
This chapter presents a methodology used as reference model for a free software factory that is part of the National Centre for Free Technologies in Venezuela. This centre is oriented at promoting free software development for serving mostly the public sector in order to promote endogenous development and technologic autonomy. Under this strategy,...
Article
Full-text available
Mecanografiado Tesis (Ing. de Sistemas) -- Universidad de Los Andes, Facultad de Ingeniería, Escuela de Sistemas, Mérida, 2007. Incluye bibliografía
Article
Full-text available
This paper intends to characterise the land holding distributions in a Multi-Agent Based Simulation (MABS) model inspired by the Caparo Forest Reserve, in Venezuela. This forest has been highly intervened with and seriously altered by opportunistic, nomadic, land-seeking colonists. The distribution of land holding results from a process of land enc...
Article
Full-text available
This paper intends to characterise the land holding distributions in a Multi-Agent Based Simulation (MABS) model inspired by the Caparo Forest Reserve, in Venezuela. This forest has been highly intervened with and seriously altered by opportunistic, nomadic, land-seeking colonists. The distribution of land holding results from a process of land enc...
Article
Full-text available
This paper presents an agent-based model of an organization. The model is made of a social network-composed of the different organization workers-and a knowledge network. Workers are assigned tasks, for which they have to use information in the knowledge network. We have modeled the quality of the information by assigning each information item a pr...
Article
Mecanografiado Tesis (Ing. de Sistemas) -- Universidad de Los Andes, Facultad de Ingeniería, Escuela de Ingeniería de Sistemas, Mérida, 2006 Incluye bibliografía
Article
Mecanografiado Tesis (Ing. de Sistemas) -- Universidad de Los Andes, Facultad de Ingeniería, Escuela de Ingeniería de Sistemas, Mérida, 2006 Incluye bibliografía
Article
Mecanografiado Tesis (Magister Scientiae)-- Universidad de Los Andes, Facultad de Ciencias Económicas y Sociales, Instituto de Estadística Aplicada y Computación, Mérida, 1994 Incluye bibliografía
Article
Mecanografiado Tesis (Ing. de Sistemas)-- Universidad de Los Andes, Facultad de Ingeniería, Escuela de Ingeniería de Sistemas, Mérida, 1992 Incluye bibliografía
Article
Mecanografiado Tesis (Ing. de Sistemas) -- Universidad de Los Andes, Facultad de Ingeniería, Escuela de Ingeniería de Sistemas, Mérida, 2008 Incluye bibliografía
Article
Mecanografiado Tesis (Ing. de Sistemas)-- Universidad de Los Andes, Facultad de Ingeniería, Escuela de Ingeniería de Sistemas, Mérida, 2004 Incluye bibliografía
Article
Mecanografiado Tesis (Ing. de Sistemas)-- Universidad de Los Andes, Facultad de Ingeniería, Escuela de Ingeniería de Sistemas, Mérida, 2004 Incluye bibliografía
Article
Tesis (Ing.de Sistemas)-- Universidad de Los Andes, Facultad de Ingeniería, Escuela de Ingeniería de Sistemas, Mérida, 2006 Incluye bibliografía
Article
Full-text available
This article presents the experience of FUNDACITE-Mérida in drawing up the Regional Innovation System (RIS ¿ SRI, Sistema Regional de Innovación) for management in science and technology in Mérida during the last three years, developed as part of the National System for Science, Technology and Innovation in the Venezuelan State. RIS is conceived as...
Conference Paper
Full-text available
This work describes an agent-based model of an organisation. The model is made of workers, which are assigned tasks that have to be solved by analyzing some information items. Information quality has been modelled by associating to each item a probability of being wrong. Workers can interact with each other to recommend information items. During th...
Article
Full-text available
Mecanografiado Tesis (Ing. de Sistemas) -- Universidad de Los Andes, Facultad de Ingeniería, Escuela de Ingeniería de Sistemas, Mérida, 2005 Incluye bibliografía
Article
Full-text available
This paper suggests procedures for decreasing misunderstanding between modellers in social simulation, aiming at helping modellers comprehending a certain phenomena from different perspectives, being aware of the relativity of each approach, and drawing conclusions from the different perspectives. A hierarchy of four levels of language, namely, cul...
Article
Mecanografiado Tesis (Ing. de Sistemas) -- Universidad de Los Andes, Facultad de Ingeniería, Escuela de Ingeniería de Sistemas, Mérida, 2005 Incluye bibliografía
Article
Full-text available
This paper addresses the problem of the diversity of perspectives about key concepts in the enterprise of the social simulation community and, in order to deal with this difficulty, proposes a Hierarchy of Contextual Levels as a framework for social simulation modelling. The concepts of language, system, levels of systems and context are reviewed f...
Article
Full-text available
This paper determines the complexity of a constraint model-based proof of the envelope of a tendency in the dynamics of a Multi-Agent-based simulation model. The proof is performed via a constraint model-based exploration of simulation trajectories using forward inference, by means of which a whole fragment of the simulation model theory is investi...
Conference Paper
In this paper we propose a methodology to help analyse tendencies in MAS to complement those of simple inspection, Monte Carlo and syntactic proof. We suggest an architecture that allows an exhaustive model-based search of possible system trajectories in significant fragments of a MAS using forward inference. The idea is to identify tendencies, esp...
Article
Full-text available
In this paper we present a methodology aimed at systematically exploring the shape of the 'envelope' of simulation trajectories and the implicit theory that a simulation represents. Thus it complements methods like Monte Carlo analysis, the inspection of single scenarios and syntactical proof. We propose a method for searching for tendencies and pr...
Article
Full-text available
In this paper we present a methodology aimed at systematically exploring the 'envelope' of simulation trajectories allowing us to prove the necessity of tendencies respect to Fragments of a Simulation Theory. More well-grounded conclusions about tendencies in a simulation can be dig up than those given by existing methods like Monte Carlo technique...
Article
Full-text available
The implicit theory that a simulation represents is precisely not in the individual choices but rather in the `envelope' of possible trajectories -- what is important is the shape of the whole envelope. Typically a huge amount of computation is required when experimenting with factors bearing on the dynamics of a simulation to tease out what affect...
Article
Full-text available
This paper presents a method used for systematically investigating the content of a simulation model [see 17-18] in terms of constraint logic programming, more specifically as a forward chaining (model-based) constraint exploration of simulation trajectories. Possible applications of this exploration in MAS-based modelling are: proving tendencies i...
Article
In this paper we propose a methodology to help analyse tendencies in MAS to complement those of simple inspection, Monte Carlo and syntactic proof.
Article
Full-text available
Discovering and studying emergent phenomena are among the most important activities in social research. Replicating this phenomenon in "the lab" using simulation is an important tool for understanding it. Multi-Agent Systems (MAS) provide a suitable framework for such simulation. When such simulations are used to represent social processes there ar...
Conference Paper
Full-text available
In this paper we present a methodology aimed at systematically exploring the shape of the 'envelope' of simulation trajectories and the implicit theory that a simulation represents. Thus it complements methods like Monte Carlo analysis, the inspection of single scenarios and syntactical proof. We propose a method for searching for tendencies and pr...
Article
Full-text available
Resumen. Se utiliza un ejemplo sencillo para lograr la simulación del cambio estructural con las herramientas que ofrece el lenguaje de simulación GLIDER desarrollado en la Universidad de los Andes. La experiencia lograda con el ejemplo permite determinar la información necesaria para lograr la simulación del Cambio Estructural. Finalmente se propo...
Article
Se utiliza un ejemplo sencillo para lograr la simulación del cambio estructural con las herramientas que ofrece el lenguaje de simulación GLIDER desarrollado en la Universidad de los Andes. La experiencia lograda con el ejemplo permite determinar la información necesaria para lograr la simulación del Cambio Estructural. Finalmente se propone amplia...

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