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Ruben A
@aets017
Top Rated
Finding Patterns in the Data
Venezuela
English
About me
PhD in Statistics, econometrician, and data scientist with extensive experience in predictive modeling, data analytics, time series, panel data, financial risk, and machine learning/deep learning. I have delivered international consulting projects for clients in Australia, the United Kingdom, the United States, Qatar, Germany, and other markets, using methodologies such as ARIMAX, VAR/SVAR/VECM, GMM, GARCH, XGBoost, Random Forest, GRU, LSTM, hybrid models, and Generative AI. I also bring a strong academic background from the Central University of Venezuela and experience in applied research.
Skills
Ruben A
$60/hour
Offline •
Average response time: 1 hour
See my services
Time Series Analysis
I will do predictive analytics and predictive modelling
Time Series Analysis
I will do econometrics with ai tools
Want to work on an hourly basis?
Tell Ruben A what you need.
$60
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hourPortfolio
Work experience
Fiverr
Freelance • 27 yrs 4 mos
Econometrician
May 2017 - Present • 9 yrs
Optimization of XGBoost, LightGBM, and CatBoost machine learning models for predicting commodity prices in the Kaggle competition: MITSUI&CO. Commodity Prediction Challenge.
Econometrician
Mar 2017 - Present • 9 yrs 2 mos
Built panel-data models to assess the impact of ESG certification, gender certification, and ESG bonds on the stock valuation of publicly listed firms in Mexico.
Data Scientist
Mar 2017 - Present • 9 yrs 2 mos
Forecast Qatar’s GDP growth using ARIMA, VAR, Random Forest, XGBoost, GRU, and LSTM models, including macroeconomic intervention analysis.
34 Reviews
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Rating Breakdown
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1-5 out of 34 Reviews
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mich2910
Repeat Client
Mexico
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tommo_99
New Zealand
Understood the problem quickly. Great work. Would use again
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arbitragedudear
United States
Great job. He did an assessment of the project. well done.
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tobiassanders
Germany
Outstanding deep knowledge, many thanks for your swift help Ruben!
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chriskronseder
Switzerland
Ruben is quick to understand the task at hand. My request was not very easy, but Ruben had a good grasp on it. Would work with him again
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