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Amy-way05/README.md

Hi, I'm Amrutha Ravikumar πŸ‘‹

AI/ML Engineer Β· Data Scientist Β· Applied Researcher

Published first-author ML researcher with a business foundation.
I build end-to-end pipelines that turn messy data into decisions people trust.


πŸ’« Quick Facts

πŸ”¬ Currently building: an interactive research dashboard for a published NCAA hockey reinforcement learning study.

πŸ“Š Working on: a prior authorization / claim denial prevention tool using RAG over public CMS policy data.

🌱 Currently learning: agentic RAG architectures, evaluation frameworks for LLM-based tools.

πŸ’¬ Ask me about: Q-learning, Markov Chain modeling, k-means clustering, or turning messy survey data into a segmentation model.

⚑ Fun fact: I came into data science through a business and management degree, so I care as much about the decision a model changes as the model itself.


πŸ”¬ Featured Research

Penalty-Kill Personnel Deployment and Offensive-Value Exposure in NCAA Ice Hockey First-author preprint Β· Q-learning (8-state reward structure, 10,000 iterations) + Markov Chain transition modeling, validated via LOSO cross-validation and 500-game bootstrap resampling across 55 NCAA D1 programmes

πŸ“„ Read on SportRxiv Β· πŸ’» Live Dashboard Β· πŸ“ Repo




🎯 Notable Projects

  • Penalty-Kill Decision-Support Framework: Reinforcement learning system trained on 13,777 penalty outcomes across 55 D1 programmes. LOSO cross-validation, 500-game bootstrap, Wilcoxon p < 0.0001. Deployed as a live Streamlit research dashboard.

  • Yelp Business Closure Prediction: KNN classifier (75.2% accuracy, 89.2% specificity) on 11,266 businesses, paired with TF-IDF text mining and k-means clustering (k=7) across 10,000 reviews to surface qualitative failure patterns the structured model missed.

  • Maine Real Estate Price Analysis: Multi-predictor regression on 7,701 listings, improving explained price variance from 10.6% (single predictor) to 34.2% (adjusted RΒ²) through feature engineering and property-type encoding.

  • Food Intervention Priority Index: PostgreSQL database integrating 4 federal datasets across 72,531 census tracts, with a composite vulnerability scoring model statistically validated at p < 0.001.

  • Consumer Segmentation & Motivation Analysis: K-means clustering and chi-square testing on 3,000 survey respondents, identifying a target segment with an 18.8 percentage-point higher purchase intent (p < 0.001).

  • Power Outage Analysis: Ten hypothesis tests on 65 weather-linked outage events, isolating wind speed as the strongest statistically significant driver of outage severity (p = 0.0044).


πŸ’» Tech Stack

Languages & Databases Python R SQL SQLite

ML & Statistics scikit-learn Q-Learning Β· Markov Chains Β· Random Forest Β· XGBoost Β· Logistic Regression Β· K-Means Β· PCA Β· ANOVA Β· LASSO

NLP TF-IDF Β· Cosine Similarity Β· VADER Sentiment Β· Text Mining

Visualization & Deployment Tableau Power BI Streamlit Git Plotly Β· Chart.js Β· Jupyter Β· GitHub Pages


πŸ‘¨β€πŸ’Ό Experience

  • Sports Research Analyst β€” AU,NCAA data partnership with Sacred Heart University, CT (Jan 2026 – Present): Built reinforcement learning and Markov Chain models on 13,777 NCAA penalty outcomes; published first-author preprint with a 6-author cross-institutional team.
  • Data Analyst, Data for Social Good β€” Northeastern Roux Institute (Feb – Jun 2026): Designed a dual-phase AI evaluation framework for Maine nonprofits, combining Kirkpatrick survey methodology with NLP-based text mining.

πŸ“– Publications

  • Ravikumar, A., Kaya, T., Artan, N.S., Taber, C., Morris, J.R., Raval, M.S. (2026). Penalty-kill personnel deployment and offensive-value exposure in NCAA ice hockey: a box-score decision-support framework. SportRxiv. doi.org/10.51224/SportRxiv.972

πŸ“Š GitHub Stats


Finishing my Master's in Applied Machine Intelligence at Northeastern University, December 2026.

Pinned Loading

  1. food-intervention-priority-index food-intervention-priority-index Public

    Composite vulnerability scoring model built on a PostgreSQL database integrating four federal datasets (USDA, Census ACS, County Health Rankings, SNAP) across 72,531 census tracts, identifying coun…

    HTML

  2. restaurant-sales-analysis restaurant-sales-analysis Public

    Eight-year restaurant sales performance analysis covering revenue growth, operational timing, and menu category performance.

  3. shu-hockey-intelligence shu-hockey-intelligence Public

    Reinforcement learning and Markov Chain framework for NCAA ice hockey penalty-kill deployment, published as a first-author preprint.

    Python 1

  4. pmi-maine-membership-analytics pmi-maine-membership-analytics Public

    Membership growth and engagement analysis for a regional professional association, built on structure-matched synthetic data to preserve confidentiality.

    HTML

  5. redfin-maine-price-analysis redfin-maine-price-analysis Public

    Regression analysis of 7,701 Maine real estate listings identifying which property characteristics significantly predict sale price, from ANOVA through multiple linear regression

  6. yelp-closure-prediction yelp-closure-prediction Public

    Predictive modeling (KNN) and text mining (TF-IDF, k-means clustering, VADER sentiment) on 11,266 Yelp businesses, examining what separates open restaurants from closed ones. Group capstone project.

    R