Cesar D. Guerrero

Cesar D. Guerrero
Autonomous University of Bucaramanga | UNAB · Dirección General de Investigaciones

Ph.D. in Computer Science
Chief Research Officer at UNAB

About

72
Publications
30,662
Reads
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435
Citations
Additional affiliations
August 2009 - July 2020
Autonomous University of Bucaramanga
Position
  • Managing Director
August 2004 - May 2009
University of South Florida
Education
August 2004 - May 2009
University of South Florida
Field of study
  • Engineering

Publications

Publications (72)
Conference Paper
Full-text available
Available bandwidth estimation techniques are being used in network monitoring and management tools to provide information about the utilization of the network and verify the compliance of service level agreements. However, the use of these techniques in other applications and network environments is limited by the convergence time, accuracy, and a...
Article
Available bandwidth estimation techniques are being used in network monitoring and management tools to provide information about the utilization of the network and verify the compliance of service level agreements. However, the use of these techniques in other applications and network environments is limited by the long convergence times, accuracy...
Article
Available Bandwidth Estimation Techniques and Tools (ABETTs) have recently been envisioned as a supporting mechanism in areas such as compliance of service level agreements, network management, traffic engineering and real-time resource provisioning, flow and congestion control, construction of overlay networks, fast detection of failures and netwo...
Article
Full-text available
The Internet of Things favors using technological tools in rural environments thanks to the ability to connect to the Internet between devices that facilitate daily tasks. The research aims to evaluate the usability of the decision support system for irrigation in agriculture, AgroRIEGO, through the development of an IoT-based device. The sponsors...
Thesis
Smart University is a concept strongly related to smart technologies; it focuses on improving its technological infrastructure to achieve quality educational goals. Organizations, including universities, need to embrace smart technologies to leverage the capabilities they provide to transform their processes and drive them towards new organizationa...
Article
Creativity scholars Runco and Charles (1993) asserted that creativity not only requires originality but it also requires some fit or appropriateness. That is why culture is so influential; it defines appropriateness. In a similar vein, Westwood and Low (2003) emphasized that, “creativity takes place within, is constituted and influenced by, and has...
Chapter
Technology management in universities impacts the quality of their administrative and academic processes. Smart technologies, such as big data, artificial intelligence, the Internet of Things, and cloud computing, continue to be disruptive and highly relevant. The factors for adopting smart technology and the key indicators will contribute to the k...
Article
Full-text available
A pesar de la necesidad de trazar los flujos y la evolución de la investigación en el Desempeño de los Sistemas de Innovación, DSI, pocos esfuerzos se han realizado para comprender este campo de conocimiento a partir del contraste de las perspectivas de los autores y de las revistas. El presente artículo implementa un análisis de la estructura conc...
Chapter
The core value of Cloud Computing is in the management of information. Universities require elements that improve, streamline and safeguard information and have it available whenever it is needed. The adoption of cloud computing in education has the potential to improve knowledge management. For this reason, the education sector is the one that has...
Article
Purpose This paper aims to assess information and communication technologies (ICT) policies for digital transformation in Colombia to determine their effectiveness in technology readiness for Internet of Things (IoT) adoption in small and medium enterprises (SMEs) in the trading sector. Design/methodology/approach The authors conducted a longitudi...
Conference Paper
An evolutionary approach for a traditional university to progress through levels towards a smart university can be seen in a maturity model. Although maturity models are numerous and widely applicable, there is little documentation on how to develop them. So far, academics often fall short of providing detailed guidelines and useful tools to suppor...
Conference Paper
The adoption of technological trends such as the Internet of Things is a challenge for Small and Medium Enterprises (SMEs), considering their financial and technological limitations. Based on the literature review, IoT readiness in SMEs is related to two factors: availability of ICT infrastructure and organizational culture focused on adopting digi...
Presentation
Full-text available
This document presents five guidelines to promote SMEs' IoT readiness, considering the Technology-Organization-Environment Model (TOE): The CIO as leader of the digital transformation process in SMEs, Training programs focused on promoting IoT skills in employees, Transition to high-speed broadband, Acquisition of low-cost IoT solutions suitable fo...
Article
Full-text available
Smart University is an emerging concept, strongly anchored to smart technologies and considered by different authors in the literature. Organizations, including universities, need to incorporate smart technologies to take advantage of their capabilities to transform their processes and drive them toward new organizational models. A Smart University...
Conference Paper
New technologies foster a variety of smart solutions in university settings to improve the quality of life and performance for both teachers and students. Research on information governance shows the importance of the alignment between information and communication technologies (ICTs) and strategic objectives. From this perspective, the adoption of...
Chapter
The emergence of newtechnologies has broughtmany advantages to organizations and other sectors, they manage to streamline manual processes and are of vital importance in decision-making. Today many entities decide to make use of emerging technologies that facilitate the work and perform it more effectively, how ever, the adoption rate is not as hig...
Article
Full-text available
El concepto de universidad inteligente es emergente, fuertemente anclado a las tecnologías inteligentes, y considerado por diferentes autores. Las organizaciones, incluidas las universidades, necesitan incorporar las tecnologías inteligentes para aprovechar las capacidades que proporcionan para transformar sus procesos e impulsarlas hacia nuevos mo...
Chapter
The quality of administrative, academic, and extension processes is influenced by the management of technology in universities. Smart technologies such as artificial intelligence (AI), cloud computing, the Internet of things (IoT), and big data continue to emerge with great prominence. Universities must use tools that connect learning with the use...
Article
Full-text available
Increasingly, Agricultural Innovation Systems, AIS, have been recognized as fundamentals pathways for agricultural science impact. This new thinking focuses on innovation, not as the end of pipe outcome of knowledge transfer, but as a continuous process of social, technical and scientific collaboration at regional and higherlevel systems that impac...
Conference Paper
Higher education organizations see in new technologies an opportunity to improve the quality of their academic and administrative processes. However, the existence and application of new technologies in this type of institutions does not imply that it really has the expected impact on their processes, so many adoption initiatives fail generating lo...
Article
Full-text available
The Internet of Things (IoT) is a key technological trend for the digital transformation of organizations, boosting existing information and communication technologies or the deployment of new IoT solutions to improve their business models. Decision-making IoT adoption in small and medium enterprises is a complex task led by the Chief Information O...
Conference Paper
Internet of Things (IoT) is a key technological trend for the digital transformation of organizations, boosting existing information and communication technologies or the deployment of new IoT solutions to improve their business models. Decision-making IoT adoption in small and medium enterprises is a complex task led by the organization’s Chief In...
Article
Full-text available
El objetivo del artículo es mostrar la experiencia y pilares del Centro de Excelencia y Apropiación en Internet de las Cosas (CEA-IoT)-Nodo Oriente, su articulación desde la academia hacia el sector productivo. Se contextualiza desde IoT y su importancia para el desarrollo de la experiencia. Se concluye que los factores importantes en el éxito de l...
Article
Full-text available
Las organizaciones, incluidas las universidades, necesitan incorporar las tecnologías “Smart” para aprovechar las capacidades que éstas les proporcionan para transformar sus procesos e impulsar nuevos modelos organizativos. A nivel internacional, se han dado a conocer algunos ejemplos de universidades que han desarrollo el concepto emergente de uni...
Article
Full-text available
Este estudio busca verificar el estado actual de la producción científica relacionada a los criterios de usabilidad en soluciones ofrecidas por las tecnologías de la información y la comunicación (TIC)-Internet de las cosas (IOT por sus siglas en inglés Internet of thing) en la agricultura, a partir de dos metodologías: La primera sigue el modelo d...
Article
Full-text available
The constant growth of the Internet, driven by the demand for timely access to data center networks; has meant that the technological platforms necessary to achieve this purpose are outside the current budgets. In this order to make and validate relevant, timely and relevant contributions; it is necessary that a wider community, access to evaluatio...
Conference Paper
This study examines the digital transformation of Colombian organizations during the period 2008–2017, in a sample of firms belonging to the following economic sectors: manufacturing industry sector, trade sector and services sector. Differences were found in the level of ICT appropriation depending on the economic sector to which the organization...
Article
Full-text available
Android es el sistema operativo móvil usado en la actualidad y el más atacado por los cibercriminales. El análisis forense digital es el proceso de aplicar métodos científicos para recopilar y analizar datos e información que puede ser utilizada como evidencia y puede ser aplicado a los dispositivos móviles. Varias instituciones e investigadores ha...
Chapter
This article reviews from the Internet of Things the emerging concept of smart university. The purpose is to present the problem situation, justification, hypothesis and conceptual framework about the term and characteristics of smart universities published in the scientific literature, from which the role of the IoT is emphasized as a fundamental...
Article
Full-text available
Technology is the intentional application of information in the design, production and use of goods and services. It also participates in the organization of human activities. It is contextualized from the architectures, technologies and their vital importance for the emerging concept of intelligent university. The purpose of this document is to ma...
Article
Full-text available
Bibliometrics is the application of quantitative models and methods for the understanding of research disciplines. The main concepts that are applied within the development of this type of analysis are associated to the analysis of networks and include the links, number of links and force of link within the networks of co-occurrence, co-citation, c...
Article
Full-text available
Smart Campus is an entity of any kind that uses technology and infrastructure to support and improve its processes, so people can use them better. This paper reviews the literature to contextualize the Internet of Things and its vital importance for the Smart Campus, as well as its relationship with the concepts of cybersecurity and wireless sensor...
Article
Full-text available
Smart Campus is an entity of any kind that uses technology and infrastructure to support and improve its processes, so people can use them better. This paper reviews the literature to contextualize the Internet of Things and its vital importance for the Smart Campus, as well as its relationship with the concepts of cybersecurity and wireless sensor...
Article
The estimation of the available bandwidth (av_bw) between two end nodes through the Internet, is an area that has motivated researchers around the world in the last twenty years, to have faster and more accurate tools; Due to the utility it has in various network applications; Such as routing management, intrusion detection systems and the performa...
Article
Full-text available
Se contextualiza desde el Internet de las Cosas y su vital importancia para las Smart Cities y el concepto emergente de Smart University. Estos últimos con sus características: Smart Governance, Smart People, SmartLiving, Smart Mobility, Smart Economy y Smart Environment. El propósito de este artículo es presentar una revisión sistemática de litera...
Conference Paper
Full-text available
In this paper, a Wireless Sensor Network (WSN) solution is proposed for soil’s condition measurement to monitor oil palm plantations (PalmNET) according to agricultural meteorological practices. The PalmNET monitoring system is composed by a WSN used for in-field soil’s condition measurement and a web-server interface for data visualization. PalmNE...
Article
Full-text available
Current Available Bandwidth Estimation Tools (ABET) insert into the network probing packets to perform a single estimation. The utilization of these packets makes ABET intrusive and prone to errors since they consume part of the available bandwidth they are measuring. This paper presents a comparative of Overhead Estimation Tools (OET) analysis of...
Conference Paper
Full-text available
Crop field monitoring systems are a strategic tool to get information for establishing better agriculture practices in crop management. Among the different technologies for crop monitoring, Wireless Sensor Networks (WSNs) are recognized as a powerful one to collect and process data in the agricultural domain with low-cost and low-energy consumption...
Conference Paper
Full-text available
In Colombia as in many other developing countries, the education of doctors in engineering presents different problems that become opportunities for new doctoral program initiatives. First, the number of existing programs and the annual graduation rate is well below other countries of Latin America and much further from developed countries like the...
Article
Full-text available
In Colombia as in many other developing countries, the education of doctors in engineering presents different problems that become opportunities for new doctoral program initiatives. First, the number of existing programs and the annual graduation rate is well below other countries of Latin America and much further from developed countries like the...
Research
Full-text available
This paper explores the relationship between creativity and innovation to determine whether creativity is just the initial step of innovation or it is present in all stages of an innovation process. It is shown how innovation can be performed at universities with the aid of technology transfer offices. By introducing the Three I´s Innovation Model,...
Conference Paper
Full-text available
La investigación, desarrollo tecnológico e innovación en redes de computadoras, se ha visto positivamente impactado por el surgimiento de una plataforma de prototipado denominada NetFPGA. Esta plataforma, que permite crear nuevos dispositivos de red, tiene una comunidad que se fortalece en la apropiación y uso de la misma para fines investigativos....
Conference Paper
Full-text available
La infraestructura de conectividad de alta velocidad que proporciona la Red Nacional de Tecnología Avanzada de Colombia, posibilita el desarrollo de programas de formación de alto nivel tanto para las actividades propias del desarrollo de cursos como para aquellas asociadas con el desarrollo de la investigación. Este artículo presenta la experienci...
Article
Full-text available
ABSTRACT In Colombia, there is a trend in the transfer of technology that affects endogenous innovation and technological development in the field of telematics. This can be evidenced in the following symptoms or consequences: (i) The amount of Telematic goods and services that are imported is significantly higher to the amount exported, (ii) Parti...
Conference Paper
Full-text available
Creativity can be seen as a skill own of engineers for the development of technological innovation processes that allow dealing problems of the society in appropriate way. Creativity can be fomented from engineering education, however this require changes in actual education. This paper presents the role of creativity in engineering as a basis for...
Conference Paper
Full-text available
Traffic classification is a technology that requires the implementation of specialized techniques in order to improve security, performance, priority and functionality of networks. With Internet growth, traffic classification has been subject of study over the last few years. This paper presents a review of techniques most used for traffic network...
Conference Paper
La formación de doctores en cualquier contexto socio-cultural conlleva un proceso en el cual el doctorando es conducido hacia la punta del conocimiento en el área específica de su saber. El proceso de formación parte de un punto en el cual el individuo tiene un dominio o competencia básica en los saberes necesarios para dar una solución a problemas...
Conference Paper
Full-text available
En la sociedad colombiana domina una tendencia a la transferencia de tecnología que se contrapone a la innovación y desarrollo tecnológico endógeno en el campo de telemática. Lo anterior se evidencia en los siguientes síntomas o consecuencias: (i) La importación de bienes y servicios telemáticos es significativamente mayor a la exportación de los m...
Article
Full-text available
Object-oriented programming is one of the core programming paradigms taught in introductory programming courses in engineering. It demands learning strategies that support the understanding of its concept and the implementation of these in computer programs. We present a Virtual Learning Environment (VLE) used to overcome the difficulties identifie...
Conference Paper
Full-text available
In Colombia has dominated a tendency to import, copy, transfer and use technological innovations that has been generated in other countries, namely, exogenous innovations. This tendency has been on detriment of technological innovations generated in Colombia (endogenous) and the appropriation of exogenous technology, with a critical reflection abou...
Data
Full-text available
In Colombia has dominated a tendency to import, copy, transfer and use technological innovations that has been generated in other countries, namely, exogenous innovations. This tendency has been on detriment of technological innovations generated in Colombia (endogenous) and the appropriation of exogenous technology, with a critical reflection abou...
Conference Paper
Full-text available
Technological education can be understood as a set of teachings to understand technology as a cultural phenomenon and as a human creation. This is a vital topic in the current academic community, which points to the imminent launch of an education reform. This paper presents a review of the literature on technological education in graduate educatio...
Data
Technological education can be understood as a set of teachings to understand technology as a cultural phenomenon and as a human creation. This is a vital topic in the current academic community, which points to the imminent launch of an education reform. This paper presents a review of the literature on technological education in graduate educatio...
Article
Full-text available
Abstract— The estimation of the available bandwidth (AB) in an end-to-end manner can be used in several network applications to improve their performance. Several tools send pairs of packets from one end to the other and measure the packets’ dispersion to infer the value of the AB. Given the fractal nature of Internet traffic, these measurements ha...
Conference Paper
High quality television content such as IPTV is delivered at a high cost for network operators. Most of the time, the network capacity (maximum bandwidth) is under-utilized and therefore there is room for additional content to be placed by an IPTV content generator in the communication channel. In order to use the spare capacity, it is necessary to...
Conference Paper
Full-text available
There are different tools to estimate the end to end available bandwidth (AB). These tools use techniques which send pairs of packets to the network and observe changes in dispersion or propagation delays to infer the value of the AB. Given the fractal nature of Internet traffic, these observations are prompt to errors affecting the accuracy of the...
Technical Report
Full-text available
El propósito de este Proyecto era, en sus dos fases, el de realizar una descripción, en sus rasgos principales, del panorama de experiencias colombianas de implementación de los programas de especialización. Este esfuerzo apunta a brindar algunos elementos que aporten a bosquejar un panorama más ordenado de lo que se ha venido haciendo en los difer...
Data
Full-text available
Este instrumento de recolección de información es un recurso importante y un resultado del proyecto de investigación titulado “Características académicas, calidad e impacto de los programas de especialización en instituciones de educación superior en Colombia”, realizado en el marco del convenio entre la Red Colombiana de Posgrado (RCP) y la Univer...
Conference Paper
Full-text available
In this paper, we present a low cost and flexible testbed to evaluate the performance of available bandwidth esti- mation tools in a common and controlled environment. In addition, we include a model based on a network of M/M/1 queues to have an analytical reference to compare the ex- periments with. We then utilize the proposed testbed and model t...
Article
Full-text available
The Research Experiences for Undergraduates (REU) program supported by the National Science Foundation is designed to provide summer academic experiences for undergraduate students through participation in research. Although students are paired with faculty mentors to work on a research project, many times graduate students are highly involved in t...
Article
Full-text available
Abstract Undergraduate research is one of the most important recommended,vehicles to addresscurrent
Article
Full-text available
Available Bandwidth Estimation Techniques and Tools (ABETTs) have recently been envisioned as a supporting mechanism in areas such as compliance of service level agreements, network management, traffic engineering and real-time resource provisioning, flow and congestion control, construction of overlay networks, fast detection of failures and netwo...

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Projects

Projects (8)
Project
Small and medium enterprises (SMEs) are an essential engine of the country’s economy. During the last decades, SMEs have adopted and implemented digital technologies. Adopting technological trends such as the Internet of Things is challenging for SMEs, considering their financial and technological limitations. This thesis aims to guide decision-making IoT adoption in small and medium enterprises by defining a Decision Support System (DSS) based on The Technology-Organization-Environment Model (TOE). The decision support system will assist decision-makers indicating their technology readiness level and providing recommendations that support the digital transformation process. This research uses a mixed qualitative and quantitative approach to understand the factors influencing IoT adoption in SMEs. The Doctoral Thesis development was an enriching process that focused on providing a conceptual framework based on the TOE framework to understand the factors that affect IoT adoption in small and medium enterprises. Based on the conceptual framework Ready4IoT in SMEs, a decision support system named DSS Ready4IoT was developed, that according to the Software Usability Scale (SUS), has high usability. The DSS Ready4IoT’s purpose is to produce measurements that capture the particularities of SMEs in the trading sector to understand the adoption of digital technologies. Likewise, the Ready4IoT report can guide policymakers to design ICT policies focused on SMEs. In this way, technology readiness in SMEs can increase by attending to the ICT sector evolution, creating an agile economy that adapts to technological change promoting innovation.
Project
Objetivo general del proyecto (Inglés y español)