Skip to content
Open
Changes from all commits
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
57 changes: 7 additions & 50 deletions README.md
Original file line number Diff line number Diff line change
@@ -1,55 +1,12 @@
# Data Scientist
# ML Enthusiast

#### Technical Skills: Python, SQL, AWS, Snowflake, MATLAB
#### Technical Skills: Python (Pandas, NumPy, Scikit-learn), SQL, Git, Matplotlib/Seaborn:

## 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_)

## 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
B.S. in Computer Science — Yerevan State University, (_September 2024 - Present_)

## 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/img/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/img/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
1. Talebi S., Lary D.J., Wijeratne L. OH., and Lary, T. Modeling Autonomic Pupillary Responses from External Stimuli Using Machine Learning (2019). DOI: 10.26717/BJSTR.2019.20.003446
2. Wijeratne, L.O.; Kiv, D.R.; Aker, A.R.; Talebi, S.; Lary, D.J. Using Machine Learning for the Calibration of Airborne Particulate Sensors. Sensors 2020, 20, 99.
3. Lary, D.J.; Schaefer, D.; Waczak, J.; Aker, A.; Barbosa, A.; Wijeratne, L.O.H.; Talebi, S.; Fernando, B.; Sadler, J.; Lary, T.; Lary, M.D. Autonomous Learning of New Environments with a Robotic Team Employing Hyper-Spectral Remote Sensing, Comprehensive In-Situ Sensing and Machine Learning. Sensors 2021, 21, 2240. https://doi.org/10.3390/s21062240
4. Zhang, Y.; Wijeratne, L.O.H.; Talebi, S.; Lary, D.J. Machine Learning for Light Sensor Calibration. Sensors 2021, 21, 6259. https://doi.org/10.3390/s21186259
5. Talebi, S.; Waczak, J.; Fernando, B.; Sridhar, A.; Lary, D.J. Data-Driven EEG Band Discovery with Decision Trees. Preprints 2022, 2022030145 (doi: 10.20944/preprints202203.0145.v1).
6. Fernando, B.A.; Sridhar, A.; Talebi, S.; Waczak, J.; Lary, D.J. Unsupervised Blink Detection Using Eye Aspect Ratio Values. Preprints 2022, 2022030200 (doi: 10.20944/preprints202203.0200.v1).
7. Talebi, S. et al. Decoding Physical and Cognitive Impacts of PM Concentrations at Ultra-fine Scales, 29 March 2022, PREPRINT (Version 1) available at Research Square [https://doi.org/10.21203/rs.3.rs-1499191/v1]
8. Lary, D.J. et al. (2022). Machine Learning, Big Data, and Spatial Tools: A Combination to Reveal Complex Facts That Impact Environmental Health. In: Faruque, F.S. (eds) Geospatial Technology for Human Well-Being and Health. Springer, Cham. https://doi.org/10.1007/978-3-030-71377-5_12
9. Wijerante, L.O.H. et al. (2022). Advancement in Airborne Particulate Estimation Using Machine Learning. In: Faruque, F.S. (eds) Geospatial Technology for Human Well-Being and Health. Springer, Cham. https://doi.org/10.1007/978-3-030-71377-5_13

- [Data Science Blog](https://medium.com/@shawhin)
- Performed data preprocessing and feature engineering for predictive modeling using **Python**.
- Built and validated ML models (Linear Regression) to solve regression tasks.
- Collaborated with other students/engineers to test and refine model performance.
- Documented experiment results and metrics (Accuracy, F1-score) in **Jupyter Notebooks**.