Listar Productos de investigación por autor "Puertas, Edwin"
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A computer vision system for detecting motorcycle violations in pedestrian zones
Hernández-Díaz, Nicolás; Peñaloza, Yersica C.; Rios, Y. Yuliana; Martínez-Santos, Juan Carlos; Puertas, Edwin (Cartagena de Indias, 2024-05-02)This paper presents a system that relies on computer vision to identify instances of motorcycle violations in crosswalks utilizing CNNs. The system was trained and evaluated on a novel public dataset published by the ... -
A sustainability maturity model for micro, small and medium-sized enterprises (MSMEs) based on a data analytics evaluation approach
Vásquez, Jenifer; Aguirre, Santiago; Puertas, Edwin; Bruno, Giulia; Priarone, Paolo C.; Settineri, Luca (Cartagena de Indias, 2021-05-28)A maturity model for micro, small and medium enterprises (MSMEs) is introduced to assess the level of implementation of sustainability strategies and practices in this type of business. According to the literature, only a ... -
Assembly of polarity, emotion and user statistics for detection of fake profiles Notebook for PAN at CLEF 2020
Moreno-Sandoval, Luis Gabriel; Puertas, Edwin; Pomares-Quimbaya, Alexandra; Alvarado-Valencia, Jorge Andres (Cartagena de Indias, 2020)The explosive growth of fake news on social networks has aroused great interest from researchers in different disciplines. To achieve efficient and effective detection of fake news requires scientific contributions from ... -
Automated depression detection in text data: leveraging lexical features, phonesthemes embedding, and roberta transformer model
Martinez, Elizabeth; Cuadrado, Juan; Martinez-Santos, Juan Carlos; Peña, Daniel; Puertas, Edwin (Cartagena de IndiasCampus TecnológicoMaestría en Ingeniería, 2023-12-05)Indexed keywords SciVal Topics Metrics Funding details Abstract Depression is a prevalent mental disorder characterized by persistent sadness, lack of interest, and diminished pleasure. Detecting depression is ... -
Component analysis to design an integral sustainability model for micro, small, and medium sized enterprises
Vásquez, Jenifer; Puertas, Edwin (Cartagena de IndiasCampus TecnológicoIngeniería Industrial, 2023-12-05)Micro, small, and medium enterprises (MSMEs) are the engine of economic, environmental and social stability in many countries but recently MSMEs have been facing instability in their sales, production, and feature a decrease ... -
Cost-Effectiveness Analysis of Strategies of COVID-19 Vaccination in Colombia: Comparison of High-Risk Prioritization and No Prioritization Strategies With the Absence of a Vaccination Plan
Morales Zamora, Gilberto Andres; Espinosa, Oscar; Puertas, Edwin; Fernández, Juan Carlos; Hernández, José; Zakzuk, Verónica; Cepeda, Magda; Alvis Guzmán, Nelson; Castañeda-Orjuela, Carlos; Paternina, Angel (Cartagena de Indias, 2022-05-26)Objectives: Our study compares two national COVID-19 vaccination plan strategies—high-risk prioritization and no prioritization—and estimates their cost-effectiveness compared with no vaccination, to generate possible ... -
Detection of broken bars in three-phase motors by using curve fits and classification algorithms
Hoyos, Gabriel; Puertas, Edwin; Villa, Jose Luis; Martinez-Santos, Juan Carlos (Cartagena de Indias, 2022)Since they transform electrical energy into mechanical energy, three-phase induction motors are one of the main assets that companies have. Therefore, good monitoring of their conditions and diagnosing their faults is ... -
Intelligent system to detect violations in pedestrian areas committed by vehicles in the city of Cartagena de Indias
Hernández-Díaz, Nicolás; Pañaloza, Yersica C.; Rios, Y. Yuliana; Martinez-Santos, Juan Carlos; Puertas, Edwin (Cartagena de IndiasCampus TecnológicoMaestría en Ingeniería, 2023-12-05)his article presents applied research which proposes an approach to a low-cost electronic system that allows the detection of violations in pedestrian areas. For this purpose, we proposed an electronic system that implements ... -
Long-Term Effects of Degradation on Photovoltaic System Return on Investment
Cuadrado, Juan; Martinez, Elizabeth; Puertas, Edwin; Martinez-Santos, Juan Carlos (Cartagena de IndiasCampus TecnológicoMaestría en Ingeniería, 2023-11-24)The adoption of photovoltaic (PV) systems has increased significantly in recent years, driven by the demand for off-grid and on-grid residential and commercial applications. However, the high initial investment required ... -
Natural language content evaluation system for multiclass detection of hate speech in tweets using transformers
Marrugo-Tobón, Duván Andres; Martinez-Santos, Juan Carlos; Puertas, Edwin (Cartagena de IndiasCampus TecnológicoMaestría en Ingeniería, 2023-12-05)In natural language processing, accurate categorization of tweets, including detecting hate speech, plays a pivotal role in efficient information organization and analysis. This paper presents a Natural Language Contents ... -
Natural language contents evaluation system for multi-class news categorization using machine learning and transformers
Marrugo, Duván A; Martinez-Santos, Juan Carlos; Puertas, Edwin (Cartagena de IndiasCampus TecnológicoMaestría en Ingeniería, 2023-12-05)The exponential growth of digital documents has come with rapid progress in text classification techniques in recent years. This paper provides text classification models, which analyze various steps of news classification, ... -
Phonetic Detection for Hate Speech Spreaders on Twitter
Puertas, Edwin; Martínez-Santos, Juan Carlos (Cartagena de Indias, 2021-09-24)Nowadays, hate messages have become the object of study on social media. Efficient and effective detection of hate profiles requires various scientific disciplines, such as computational linguistics and sociology. Here, ... -
Presidential preferences in Colombia through Sentiment Analysis
Puertas, Edwin; Martinez-Santos, Juan Carlos; Pertuz-Duran, Pablo Andres (Cartagena de Indias, 2022)This work carries out the sentiment analysis of the social network Twitter regarding the presidential debate on May 23, where a hashtag was left open so viewers could give their points of view on these three candidates: ... -
team UTB-NLP at finances 2023: financial targeted sentiment analysis using a phonestheme semantic approach
Cuadrado, Juan; Martinez, Elizabeth; Martinez-Santos, Juan Carlos; Puertas, Edwin (Cartagena de IndiasCampus TecnológicoMaestría en Ingeniería, 2023-12-06)Sentiment analysis in the financial domain is a challenging task that plays a crucial role in understanding public opinion, monitoring market trends, and assessing the impact of news on economic agents. In this shared task, ...
Universidad Tecnológica de Bolívar - 2017 Institución de Educación Superior sujeta a inspección y vigilancia por el Ministerio de Educación Nacional. Resolución No 961 del 26 de octubre de 1970 a través de la cual la Gobernación de Bolívar otorga la Personería Jurídica a la Universidad Tecnológica de Bolívar.