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GuyOrlov authored Feb 22, 2024
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#### Technical Skills: Python, SQL

## Education
- Ph.D., Physics | The University of Texas at Dallas (_May 2022_)
- M.S., Physics | The University of Texas at Dallas (_December 2019_)
- B.S., Physics | The University of Texas at Dallas (_May 2017_)
- BSc., Computing Visualisation | Sheffield Hallam (_July 2009_)

## Work Experience
**Data Scientist @ Toyota Financial Services (_June 2022 - Present_)**
- Uncovered and corrected missing step in production data pipeline which impacted over 70% of active accounts
- Redeveloped loan originations model which resulted in 50% improvement in model performance and saving 1 million dollars in potential losses

**Data Science Consultant @ Shawhin Talebi Ventures LLC (_December 2020 - Present_)**
- Conducted data collection, processing, and analysis for novel study evaluating the impact of over 300 biometrics variables on human performance in hyper-realistic, live-fire training scenarios
- Applied unsupervised deep learning approaches to longitudinal ICU data to discover novel sepsis sub-phenotypes

## Projects
### Data-Driven EEG Band Discovery with Decision Trees
[Publication](https://www.mdpi.com/1424-8220/22/8/3048)

Developed objective strategy for discovering optimal EEG bands based on signal power spectra using **Python**. This data-driven approach led to better characterization of the underlying power spectrum by identifying bands that outperformed the more commonly used band boundaries by a factor of two. The proposed method provides a fully automated and flexible approach to capturing key signal components and possibly discovering new indices of brain activity.

![EEG Band Discovery](/assets/eeg_band_discovery.jpeg)

### Decoding Physical and Cognitive Impacts of Particulate Matter Concentrations at Ultra-Fine Scales
[Publication](https://www.mdpi.com/1424-8220/22/11/4240)

Used **Matlab** to train over 100 machine learning models which estimated particulate matter concentrations based on a suite of over 300 biometric variables. We found biometric variables can be used to accurately estimate particulate matter concentrations at ultra-fine spatial scales with high fidelity (r2 = 0.91) and that smaller particles are better estimated than larger ones. Inferring environmental conditions solely from biometric measurements allows us to disentangle key interactions between the environment and the body.

![Bike Study](/assets/bike_study.jpeg)

## Talks & Lectures
- Causality: The new science of an old question - GSP Seminar, Fall 2021
- Guest Lecture: Dimensionality Reduction - Big Data and Machine Learning for Scientific Discovery (PHYS 5336), Spring 2021
- Guest Lecture: Fourier and Wavelet Transforms - Scientific Computing (PHYS 5315), Fall 2020
- A Brief Introduction to Optimization - GSP Seminar, Fall 2019
- Weeks of Welcome Poster Competition - UTD, Fall 2019
- A Brief Introduction to Networks - GSP Seminar, Spring 2019

- [Data Science YouTube](https://www.youtube.com/channel/UCa9gErQ9AE5jT2DZLjXBIdA)

## Publications


- [Data Science Blog](https://medium.com/@shawhin)

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