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ysurya18/README.md

Hi, I'm Surya 👋

Data & Business Analyst in Boston. I turn messy, multi-source data into reporting and recommendations people act on.

My best work starts with a number that doesn't add up and ends with a business decision that changed because of it. MS in Business Analytics from Northeastern University.

Portfolio · LinkedIn · Email

Selected work

Project What it shows Stack
Donor propensity model Captured 37.7% of likely planned-gift donors in the top 1% tier, on a 0.1% positive class across 318K+ constituents Python · XGBoost · LightGBM
Student retention dashboard Who drops out and when to step in: ~80% dropout with no first-semester units passed vs ~10% with 6+ Power BI
U.S. airfare trends 11 interactive views of fares before and after the pandemic, in nominal and inflation-adjusted terms Tableau · SQL
Ride fare prediction Cut query latency from 4 min to 12 s on 690K+ records; XGBoost fares to $6.69 MAE BigQuery · PySpark · Flask
Football match agent (in progress) Plain-English questions answered by an XGBoost model, with Claude choosing the tool Python · DuckDB · Claude API
Spotify listening behavior Skip behavior and K-Means segmentation of ~150K streaming records Python · scikit-learn

Case studies for each, plus my work experience, are on my portfolio.

Toolkit

BI & visualization: Power BI (DAX, data modeling), Tableau, Excel (Power Query, Power Pivot, VBA)
Querying & data: SQL, Python (pandas, NumPy), R, Google BigQuery, PySpark, Alteryx
Analysis & ML: regression, classification, segmentation, XGBoost, LightGBM, scikit-learn, hypothesis testing

Pinned Loading

  1. donor-propensity-model donor-propensity-model Public

    Planned-gift propensity model for Northeastern University Advancement: XGBoost captured 37.7% of likely donors in the top 1% tier on a 0.1% positive class across 318K+ constituents.

    Python

  2. ysurya18.github.io ysurya18.github.io Public

    My portfolio: data and business analytics case studies, experience and skills.

    HTML

  3. US_Airfare_Trend_Analysis US_Airfare_Trend_Analysis Public

    How U.S. airfares shifted before and after the pandemic, 2018–2024: 11 interactive Tableau visualizations by state, city and airport, nominal and inflation-adjusted.

  4. football-ml-agent football-ml-agent Public

    Natural-language agent over an XGBoost model that predicts international football results. Claude tool-use + DuckDB + 92-feature pipeline over 49k matches.

    Python