Fredy Orjuela

Fredy Orjuela

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PhD Candidate in Physics
Bogota, Colombia

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Jobs verified_user 0% verified
  • F
    Data Scientist
    Fundación Social Vive Colombia – FUNVIVE 2.0
    Jan 2022 - Dec 2024 (3 years)
    Collected and processed data using SQL and NoSQL technologies to extract and store information from multiple sources.Performed descriptive analysis and data visualization by producing reports and dashboards with Power BI and Tableau.Implemented automation workflows applying supervised, unsupervised, and generative machine-learning techniques to optimize data analysis and processing.
  • Universidad de los Andes
    Researcher
    Universidad de los Andes
    Jan 2021 - Jan 2025 (4 years 1 month)
    At the research level, I have carried out the following projects:Parameter fitting in the evolution of viscous decretion disks in Be stars for the L spectral band using Emcee, applying Bayesian inference tools for parameter estimation of infrared region spectra.Detection of buildings in rural areas using segmentation and analysis of satellite images obtained via ArcGIS, employing a YOLO-type model.Use of Machine Learning for parameter estimation of an N2H+ protocluster through a Variational AutoEncoder (VAE).Generation of synthetic data for infrared spectra of Be star disks using WGAN, aiming to perform data augmentation.
  • Universidad de los Andes
    Student Researcher | Lecturer
    Universidad de los Andes
    Jan 2021 - Jan 2025 (4 years 1 month)
    Served as a university lecturer in the following subjects:Complementary Physics IBasic Physics I (Complementary)Basic Physics II (Complementary)Experimental Physics IExperimental Physics IIBasic Experimental Physics I
  • Fundacion Universitaria San Mateo
    University Lecturer
    Fundacion Universitaria San Mateo
    Aug 2017 - Dec 2017 (5 months)
    Worked as a university lecturer in the following subjects:Mathematics: Discrete Mathematics, Linear Algebra, Differential Equations, Introduction to Calculus, Differential and Integral Calculus, Vector Calculus, Logical ThinkingPhysics: Mechanical Physics, Electrical Physics, Wave PhysicsStatistics: Statistics and Probability, Statistics and Sampling, Financial Mathematics
  • Universidad de los Andes
    Researcher
    Universidad de los Andes
    Jan 2017 - May 2020 (3 years 5 months)
    At the research level, I have carried out the following projects:Parameter fitting in the evolution of viscous decretion disks in Be stars for the L spectral band using Emcee, applying Bayesian inference tools for parameter estimation of infrared region spectra.Detection of buildings in rural areas using segmentation and analysis of satellite images obtained via ArcGIS, employing a YOLO-type model.Use of Machine Learning for parameter estimation of an N2H+ protocluster through a Variational AutoEncoder (VAE).Generation of synthetic data for infrared spectra of Be star disks using WGAN, aiming to perform data augmentation.
  • Universidad de los Andes
    Student Researcher | Lecturer
    Universidad de los Andes
    Jan 2017 - May 2020 (3 years 5 months)
    Served as a university lecturer in the following subjects:Complementary Physics IBasic Physics I (Complementary)Basic Physics II (Complementary)Experimental Physics IExperimental Physics IIBasic Experimental Physics I
  • F
    Teacher
    FUNPES (Fundación de Proyectos Educativos Sociales)
    Mar 2015 - Aug 2015 (6 months)
    Teacher in the areas of physics, mathematics, and statistics for students from sixth to eleventh grades under a cyclical education model, corresponding to Project 138 of the Santa Fe Local Administration.
  • T
    Teacher in a Personalized Education Model
    TEACHING AND TUTORING T&T COLLEGE DE COLOMBIA S.A.S
    Aug 2012 - Dec 2012 (5 months)
    Teacher in the areas of physics, mathematics, and statistics for students from fifth to eleventh grades under a personalized education model, with labs of up to 10 students.
  • C
    Teacher
    Colegio Manuela Beltrán I.E.D | Comprehensive Teaching Practice
    Feb 2012 - Jun 2012 (5 months)
    Physics teacher for tenth and eleventh-grade students in the Afternoon Shift at Colegio Manuela Beltrán.
Education verified_user 0% verified
  • Universidad de los Andes
    PhD Candidate in Science – Physics
    Universidad de los Andes
    Jan 2021 - Current (5 years 4 months)
    PhD Candidate in Science – Physics at Universidad de los Andes.
  • Universidad de los Andes  Colombia
    PhD in Physics, Astrostatistics and Astroinformatics
    Universidad de los Andes Colombia
    Jan 2021 - Dec 2025 (5 years)
  • Universidad de los Andes  Colombia
    Master's degree in Physics, Astronomy and Astrophysics
    Universidad de los Andes Colombia
    Jan 2017 - Dec 2020 (4 years)
  • Universidad de los Andes
    Master's Degree in Science – Physics
    Universidad de los Andes
    Jan 2017 - Dec 2020 (4 years)
    Master's Degree in Science – Physics from Universidad de los Andes.Thesis: Analysis of the Parameters in the Evolution of Viscous Decretion Disks in Be Stars for the L Spectral Band.
  • UNIVERSIDAD DISTRITAL FRANCISCO JOSÉ DE CALDAS
    Bachelor's Degree in Physics
    UNIVERSIDAD DISTRITAL FRANCISCO JOSÉ DE CALDAS
    Jan 2007 - Dec 2013 (7 years)
    Bachelor's Degree in Physics from Universidad Distrital.Thesis: Simulation and Analysis of an Inverted Pendulum Coupled to a Spring.
  • UNIVERSIDAD DISTRITAL FRANCISCO JOSÉ DE CALDAS
    Bachelor's degree in Physics, PHYSICAL SCIENCES
    UNIVERSIDAD DISTRITAL FRANCISCO JOSÉ DE CALDAS
    Jan 2007 - Dec 2012 (6 years)
  • E
    High School Diploma
    Externado Nacional Camilo Torres I.E.D
    Jan 2001 - Dec 2006 (6 years)
    Academic High School Diploma
Projects (professional or personal) verified_user 0% verified
  • M
    Machine Learning and Bayesian Inference: Finding Velocity Components of N2H+ in Protocluster G327.29 and Classifying Inf
    Jan 2021 - Jan 2025 (4 years 1 month)
    This project, part of the doctoral qualifying exam in Science – Physics at Universidad de los Andes, addresses two main challenges. First, the classification of N2H+ molecular tracer peaks in spectral data obtained from the Atacama Large Millimeter/submillimeter Array (ALMA). By using machine learning algorithms, the goal is to automate N2H+ identification and classification, improving efficiency and objectivity in large datasets and characterizing the G329.27 protocluster based on its kinematics and morphology. Second, the morphological classification of Be stars, using observational data—including infrared information from the San Pedro Mártir Observatory (Baja California, Mexico)—to develop a robust system for classifying the circumstell
  • A
    Analysis of the Parameters in the Evolution of Viscous Decretion Disks in Be Stars for the L Spectral Band
    Jan 2017 - Dec 2020 (4 years)
    This research project was carried out to fulfill the requirements for the Master's Degree in Science – Physics at Universidad de los Andes. The parameters of various decretion disk models in Be stars were determined for the L band of the infrared region of the electromagnetic spectrum. A radiative transfer code known as HDUST was used to obtain data on some observables of these models, and their analysis was performed using Bayesian Inference via the Emcee code.
Publications verified_user 0% verified
  • P
    A comprehensive modelling and experimental approach for damped oscillations in U-tubes via Easy JavaScript Simulations
    Physics Education Volume Number
    Jul 2023