Mariel B.

About Me

Qualified Data Scientist specialized in Artificial Intelligence with 7+ years of experience in creative modeling of complex data for classification and prediction using Python and R. Mariel is proficient in Data Analysis and communicating results to audiences with diverse backgrounds. Contributed to multiple research projects, while being a Bioinformatics Ph.D. candidate in the School of Mathematics, Statistics and Applied Mathematics at the National University of Ireland - Galway with peer-reviewed publications in Artificial Intelligence and Bioinformatics.

AI, ML & LLM

Other

Work history

UpStack
UpStack
Data Scientist
2020 - Present (5 years)
Remote
  • Create and implement data analysis pipelines, including data access, ingestion, munging / manipulation / cleansing, analysis / modelling, testing, deployment / integration into business applications and services.

  • Enhance operational aspects of businesses by increasing control of the company's data.

  • Working in cross-functional teams to provide data-driven solutions for increased efficiency and productivity.

National University of Ireland, Galway
National University of Ireland, Galway
PhD Graduate Student
2017 - 2021 (4 years)
Ireland
  • Worked on a project for performing the risk prediction in kidney transplant patients in a more appropriate manner using gene expression data.

  • Performed data pre-processing and analysis using Python to develop an Ensemble Learning System with Particle Swarm Optimisation (PSO) approach for hyper-parameter optimization.

  • Led to increased predictive performance when compared with the Ensemble alone when using a random oversampling technique.

Federal University of Rio Grande do Sul
Federal University of Rio Grande do Sul
Course Instructor
2017 - 2017
Brazil
  • Performed course ministration for undergraduate and graduate students in Python for Bioinformatics.

  • Developed an appropriate instructional plan, as well as plan lessons and assignments.

  • Kept up to date with changes and innovations in their field and published research and analysis in books and academic journals.

National University of Ireland, Galway
National University of Ireland, Galway
Research Intern
2016 - 2016
Ireland
  • Worked on the research of automated classification of ultrasonic vocalization patterns in a genetic mouse model of autism spectrum disorder.

  • Applied information-theoretic and statistical approaches to the study of vocalization patterns in wild-type and heterozygous Tbx1 mice, which show distinct phenotype in terms of neuronal development and social communication. Supervisor: Pilib Ó Broin, PhD

  • Performed data analysis, interpretation of results and co-wrote the paper.

Federal University of Rio Grande do Sul
Federal University of Rio Grande do Sul
Undergraduate Student Researcher / Course Instructor
2013 - 2016 (3 years)
Brazil
  • Worked on the research of Protein Structure Prediction Algorithms and Tools, Protein Data Bank using a Data mining approach.

  • Performed research of Evolutionary history of RAGE family, using a systems biology approach; Geneplast using the R package development.

  • Held courses in the subject area Python for Bioinformatics for undergraduate and graduate students.

Showcase

PhD Candidate / Data Scientist /AI specialist / Python Developer - Risk prediction of kidney transplant patients
PhD Candidate / Data Scientist /AI specialist / Python Developer - Risk prediction of kidney transplant patients
  • The project focuses on risk prediction for kidney transplant patients using gene expression data.

  • It utilizes an Optimised Ensemble Learning System with Particle Swarm Optimization (PSO) for hyper-parameter tuning.

  • The approach demonstrated improved predictive performance compared to a random oversampling technique using publicly available data.

PhD Candidate / Data Scientist / AI specialist / R and Python Developer - Automated classification of vocalization patterns
PhD Candidate / Data Scientist / AI specialist / R and Python Developer - Automated classification of vocalization patterns
  • The project involves analyzing vocalization files from two study groups using R Shiny, generating Entropy analysis, Markov Models, Linear Models, and Classification results.

  • A Python implementation of Shannon's Entropy function was developed, utilizing the Reticulate R package for the interface.

  • R developed a Markov Chain model for call transitions using Jensen-Shannon divergence and a mixed-effects linear model for classification, leveraging Boruta and Random Forest.

Research Assistant / Machine Learning specialist / Python developer - APL: An angle probability list to improve knowledge-based metaheuristics for the three-dimensional protein structure prediction
Research Assistant / Machine Learning specialist / Python developer - APL: An angle probability list to improve knowledge-based metaheuristics for the three-dimensional protein structure prediction
  • The project focuses on challenging a bioinformatics problem: predicting tertiary protein structure.

  • A new computational approach was developed using information from the Protein Data Bank to optimize the folding mechanism of proteins.

  • A Particle Swarm Optimization (PSO) approach was implemented using the Angle Probability List for improved predictive performance.

Education

Education
Ph.D. Bioinformatics
National University of Ireland, Galway
2017 - 2021 (4 years)
Education
Undergraduate exchange scholarship
National University of Ireland, Galway
2015 - 2016 (1 year)
Education
Bachelor's degree, Biotechnology - Major in Bioinformatics
Federal University of Rio Grande do Sul
2012 - 2016 (4 years)
Education
Bachelor's degree, Biomedical Sciences, General
Federal University of Health Sciences of Porto Alegre
2008 - 2011 (3 years)