Olmer Garcia-Bedoya

Ekumen Labs

Robotics in healthcare has been potential to help in the quality of life of many people. This article present the methodology used during METRICS HEART-MET Assistive Robot Challenge at ICSR 2022 to recognition of a set of activities in videos. The methodology consists of a fine-tuning process from the VideoMAE model based in the data of the challen...

El presente artículo es resultado del Proyecto Modelo semiótico de planeación estratégica, financiado por la Universidad Jorge Tadeo Lozano. En él, se busca establecer variables para la fase diagnóstica de un Software piloto de apoyo a la planeación estratégica publicitaria. El punto de partida fue el análisis del trabajo con casos de los premios E...

The Guajira region in Colombia is renowned by ethno-tourists, who immerse themselves in a unique cultural experience by interacting with the Wayúu indigenous peoples. Such tourism is deemed to bring benefits to the region. To further foster tourism, we implement a Spanish-Wayuunaiki translator to facilitate communication between visitors and the Wa...

In this work, we compare various machine learning models for weather forecasting in tropical regions. We take the Colombian case as an example, using a dataset with monthly rainfall levels obtained from the Institute of Hydrology, Meteorology and Environmental Studies (IDEAM) from 1980 to 2018 for each meteorological station installed in the countr...

Introduction: To understand the sick leave situation and the causes and effects of a temporary loss of capacity to work allows for the strengthening of policies and management in the provision of health services. Objective: To analyze sick leave in Colombia in the 2016–2018 period. Materials and methods: A retrospective cross-sectional observationa...

* Grupo de 25 a 29 años en ambos sexos presentan más Incapacidad Temporal (IT) Las Tasas de (IT): * Son mayores en juventud (18 26 años) y menores en persona mayor, para cada año y en el acumulado del período. * Las mujeres entre 18 40 años se incapacitan más que hombres * Las tasas de IT son mayores para el sexo femenino en todos los años y en el...

The explosion of digital financial services during the last part of the 2010s in emerging markets needs a framework to confirm the customer identity for personalized service and to robust the compliance processes, especially, prevention of financial fraud and money laundering because sales of financial products and services use more frequently digi...

Autonomous vehicles will be a reality in the next decade, transforming mobility, turning vehicles into software-driven products. This article presents the hardware and software architecture of the embedded systems of an autonomous vehicle developed in the Autonomous Mobility Laboratory at UNICAMP. This vehicle aims to enable the testing of cooperat...

One of the biggest problems in higher education is student dropout. Prior to the pandemic, one of the biggest problems for university institutions was the dropout and dropout of many of their students. Today, the situation has become even more critical, as the pandemic has forced many people to drop out of school for a variety of reasons, whether f...

Purpose This study aims to explore the digital divide between students living in metropolitan and non-metropolitan areas in the Antioquia region of Colombia. This is achieved by collecting data about student interactions from the Moodle learning management system (LMS), and subsequently applying supervised machine learning models to infer the gap b...

En años recientes, la predicción del comportamiento del Indicador Bancario de Referencia (IBR) se ha hecho relevante debido a su importancia en el mercado monetario colombiano. El propósito de este trabajo es demostrar la eficiencia de las redes LSTM en la generación de predicciones de series de tiempo —a través de su memoria a corto y largo plazo—...

One of the main objectives of e-government is the use of data to improve processes, identify opportunities and make better decisions, this article describes a success story in the government of Colombia in building an information system that makes use of data exploitation techniques in one of the most important state entities in the country that gu...

The activities of money laundering are a result of corruption, illegal activities, and organized crime that affect social dynamics and involved, directly and indirectly, several communities through different mechanisms to launder illegal money. In this article, we propose a machine learning approach to the analysis of suspicious activities in non-b...

Insurance companies need to define actions to improve the persistence indicators of customers in subscription services. We want to fully understand the behavior of cancellations in mass sales channels with the retention tasks performed inside the company. As a proposal to increase the retention of customers calling to cancel, a logistic regression...

Purpose The purpose of this paper is to examine the artificial intelligence (AI) methodologies to fight against money laundering crimes in Colombia. Design/methodology/approach This paper examines Colombian money laundering situations with some methodologies of network science to apply AI tools. Findings This paper identifies the suspicious opera...

One of the objectives of the fourth industrial revolution is the use of data to make decisions, in this sense the decisions of the government could be better if they are based on useful data sources, with quality and focused on services to citizens. This article presents a case of use in the government of Colombia in which an information system was...

Mobile robots have recently been used in different environments in order to safeguard the life and integrity of people in high-risk situations. Proof of this is the military robots that are used to Improvised Explosive Devices. These kinds of platforms are generally teleoperated through a control station or electronic devices such as gamepad. The p...

The purpose of this work is to show a way to improve agreement in group decision problems. This work focuses his effort on the issue refers to assign different importance to every decision-maker. We propose as a novelty a methodology to assign different levels of importance to every decision-maker according to their perceived importance in the grou...

The purpose of this work is to contribute to the extended use of hybrid models to solve MRP issues dealing with stochastic demand over main stock-keeping units. The methodology development first apply SARIMA (Seasonal Autoregressive Integrated Moving Average Model), Long short term memory networks and Fb-prophet as forecasting methods to predict th...

Virtual education is one of the educational trends of the 21st century; however knowing the perception of students is a new challenge. This article presents a proposal to define the essential components for the construction of a model for the analysis of the records given by the students enrolled in courses in a virtual learning platform (VLE). The...

The indices of citizen insecurity have been increasing in Colombia in recent years after the signing of the peace agreement. Many of the demobilized guerrilla members have gone to the streets of the country to seek a new direction or occupation and unfortunately have fallen into crime, increasing delinquency levels of crimes such as robbery, extort...

Serious Games applied to healthcare is expected to help in many treatments, with the advantage of being able to be applied in mass at low costs. The data management system for the treatment of patients with video games is based on the information produced by games that stimulate the executive functions of sustained attention, divided attention and...

The laboratory of the university has a continuous distillation tower where students carry out laboratory practice, require that student manipulate valve at high temperatures generating risk at operation. A control system was carried out on the plant to maintain the level of 0.18 meters in the bottom of the first column. For its identification, the...

The Automatic Emergency Braking (AEB) systems in vehicles is one of the technologies suggested by NHTSA to be included in vehicles by default. This article presents the dynamic model of the vehicle that should be considered to design control of EAB system. After that, the design of a classic controller is presented, following of some results of sim...

Pages: 355-368 Resumen:. Este documento muestra de manera cronológica, el desarrollo del proyecto VALI (Vehículo Antiexplosivos Liviano), destinado a apoyar las labores de neutralización de explosivos de las fuerzas armadas de Colombia. Durante el desarrollo del proyecto, realizado en una alianza entre universidad-empresa-estado, se construyeron do...

The main objective for this project is to design an architecture that’s able to offer a technological platform capable of providing an inter-institutional or federate service (between organizations) using a cloud-computing paradigm to deliver opportunistic resources. To accomplish the main purpose of this project, two technologies and types of impl...

This article presents the parallel implementation, using a graphical processing unit (GPU), of a Sequential Monte Carlo Method, which is a sophisticated model estimation technique based on simulations, also known as Particle Filter. The particle filter is applied to the localization of a simulated Ackerman mobile robot with a simplified kinematic m...

Competitive Intelligence (CI) is a valuable tool that allows organizations to have information relevant to their environment, allowing them to anticipate changes, identify opportunities and focus on innovation. Implement useful methods for the control and systematic monitoring of the impact generated in social networks, is very useful in the contex...

In the production of milk, pastures are the basis of bovine feeding, it is considered that around 50% of the costs to produce a liter of milk correspond to the feeding of the cows. Therefore the cultivation of pastures is an essential factor in the dairy industry. The cultivation of pastures requires the preparation of the soil adding fertilizers a...

Autonomous vehicles will be a reality in our society shortly, first coming vehicle will come with level 3 of automation where the driver is expected to be available for occasional control either for pleasure or during critical situations. This article proposes a strategy that aims to predict the path desired by the driver through steering actions a...

Intelligent autonomous vehicles have received a great degree of attention in recent years. Although the technology required for these vehicles is relatively advanced, the challenge is firstly to ensure that drivers can understand the capabilities and limitations of such systems and secondly to design a system that can handle the interaction between...

Intelligent and autonomous vehicle concepts have received a great degree of attention in recent years. In addition to a set of sensors, actuators, mechanism, and components (hardware and/or software), new technologies should be developed in support of Automation, Control, Perception, Localization, and Navigation. This article presents the initial t...

This paper presents the design of a standard control based on the H2 standard and an H-infinity control applied in a manipulator of two degrees of freedom. The manipulator was modeled with the Euler-Lagrange equations and the Rayleigh dissipation function. A model was used in the SimMechanics Toolbox by exporting geometry and physical properties fr...

En vista del alto grado de contaminación que se presenta hoy en día, se han comenzado a buscar medidas para combatir y regular este problema. Entre estas medidas están los precipitadores electrostáticos (PES), dispositivos usados en el proceso de purificar el medio ambiente. Este proceso se realiza por medio de alta tensión de voltaje en placas de...

Abstract— Development of an operation package for the Scorbot ER III robotic arm, with ROS-industrial supported on the Ubuntu Mate® operating system. Update of the power stage and control stage, reverse engineering application to fine-tune the physical system. In the power stage, microcontrollers obtain the signal coming from the position sensors o...

This article presents an overview of machine learning in general and deep learning in particular applied to autonomous vehicles. The characteristics of the data from the noise and small size viewpoints made this problem intractable for other methods. The use of machine learning for this project required two hardware/software systems: one for traini...

Context: Before autonomous vehicles being a reality in daily situations, outstanding issues regarding the techniques of autonomous mobility must be solved. Hence, relevant aspects of a path planning for terrestrial vehicles are shown. Method: The approached path planning technique uses splines to generate the global route. For this goal, waypoints...

The vertical dynamics of a vehicle depends on the vertical forces acting on it. These forces are calculated as a function of relative displacement of the wheel and the ground, which are the vehicle dynamic response due to pavement’s irregularities (inputs) that are not easily obtained by sensors. Therefore, the objective of this work is to estimate...

The design of a robotic vehicle of Autonomous Mobility Laboratory (LMA) at UNICAMP is developed in-vehicle platform FIAT-PUNTO. In addition to a set of sensors, actuators, mechanisms and components (hardware and software), new technologies should be developed to support the Automation, Control, Perception, Localization and Navigation. The purpose o...

The design of the robotic vehicle VILMA at UNICAMP is developed in-vehicle platform Fiat Punto. In addition to a set of sensors, actuators, mechanism and components (hardware and/or software), new technologies should be developed in support of Automation, Control, Perception, Localization and Navigation. This work presents the design and simulation...

This article presents the non-linear mathematical model of a one-freedom degree electro-hydraulic shaking table for simulating earthquakes in soil scale models that are influenced by a centrifugal force. The problem presents two challenges: The first one is that when a body is exposed to a certain centrifugal force to simulate gravity force on it,...

The article presents the hardware and software architecture of the control of a mobile robot with anthropomorphic arm. The vehicle has an embedded system based in OS Linux, where is controlled all the functions of the vehicle using digital inputs and outputs, analog inputs and ports RS232. The architecture of the software in this system uses daemon...

It is introduced in this paper the design and development of a three-dimensional scanner, plus scanner, which uses in its data acquisition system the laser triangulation technique, through a line laser generator and a Webcam. The software allows the visualization of the virtual model in a three-dimensional environment controlled by the user; beside...