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WillPaz16/README.md

Will Paz

Mathematics · Data Science · Baseball

mathematics + data science @ Miami University.

Exploring exciting and complex problems through mathematics, data, and machine learning

LinkedIn · ORCID · X · Resume


About Me

  • I'm a Master's in Mathematics student at Miami University, working on my thesis and graduating in December 2026.
  • Currently working as a Data Science Intern at Arhaus after spending two years as Director of Analytics with Miami Baseball.
  • My work tends to sit somewhere between the intersection of all of the quantitative methods spanning applied mathematics, statistics, machine learning, AI, and just about anything in between.

Professional Experience

Data Science Intern, Arhaus (2026)
Built an automated document-ingestion pipeline (PostgreSQL + React) for cross-team data workflows, deployed via Azure and Docker; used Snowflake for graph-based ecommerce basket analysis and NLP-driven customer sentiment modeling.

Director of Analytics & Head Student Manager, Miami University Baseball (2023–2026)
Led a team of 4 student analysts overseeing advanced scouting, pitcher development plans, and pitch design collaboration with coaching staff. Built and deployed R Shiny/Plotly applications for player analysis; developed Stuff+, Location+, and swing-decision models. See Miami University Baseball below for the tooling built during this role.


Tools & Skills

Python R SQL Git React FastAPI Shiny Plotly PostgreSQL Snowflake Docker Azure Claude

Statistical Modeling Machine Learning Gradient Boosting Clustering Dimensionality Reduction Optimization NLP & Embeddings LLMs AI Automation Knowledge Graphs Topological Data Analysis


Projects

Baseball & Sports Analytics

Money Bull — Mathematical Sports Ranking
With Mia Adler, Ford McDill, and Tiffanie Ng: developed a novel linear-algebraic ranking model for professional rodeo, published in Mathematics and Sports and presented at JMM 2025. Paper

TDA Pitch Clustering — Topological Data Analysis
Applied the Mapper algorithm and clustering techniques to MLB pitch-level data to explore the structure and similarity of different pitch types. Live demo

  • Miami University Baseball — Built analytics tools, models, dashboards, and scouting resources using Trackman and other baseball data to support player evaluation and coaching decisions.
  • MoneyScore — With Harrison Cradduck, Joey Endres, and Sam Honicky: NHL performance-vs-pay modeling (MoneyScore composite metric, Elo ratings, XGBoost cap-hit prediction), presented at JMM 2026.

Databases

  • College Baseball Trackman DB — Decomposed national college baseball Trackman data (delivered as flat, per-game pitch-level CSVs) into a 17-table, 3NF-normalized MySQL schema. Hardened it with primary keys, 31 indexes, and real foreign key constraints (cutting a representative join from 15–40 minutes to 47 seconds), and found and fixed a data-integrity bug that had silently broken 100% of catcher-level joins.
  • Cobalt Mineral DB — Normalized MySQL schema, functional-dependency/normalization analysis, and stored procedures over USGS mineral-deposit data.

Machine Learning

  • ML Classifier Benchmark — Compared 9 classification algorithms (XGBoost, Random Forest, ANN, and more) on windowed sensor data, with full hyperparameter tuning and cross-validation.

Applied Math

  • SVD Image Compression and House of Reps TDA — linear algebra and topological methods applied to image compression and congressional voting data, the latter an early precursor to the TDA thesis work above.
  • Schedule Optimization — with Joseph Follrath and Jackson Frey, a mixed-integer linear program (OR-Tools) that builds optimal four-year course schedules under prerequisite, corequisite, and credit-load constraints.

Other Projects

  • MLB Job Automation — Personal local-first job search automation for MLB baseball ops/analytics/R&D roles — scrapes team career pages, tracks applications through a pipeline, and assists with (never auto-submits) applications.

Pinned Loading

  1. moneybull moneybull Public

    Analysis of Colley, Massey, Keener, and PageRank ranking methods applied to PRCA bareback rodeo riders. Research from NSF-funded Summer@ICERM 2024, published in Mathematics and Sports Journal.

    Jupyter Notebook 1

  2. miami-baseball miami-baseball Public

    Trackman-based pitching/hitting analytics for Miami University Baseball: data cleaning, scouting reports, a Shiny dashboard, and exploratory Python analysis.

    R

  3. tda-pitch-clustering tda-pitch-clustering Public

    Applying TDA's Mapper algorithm to MLB pitch-level Statcast data, paired with a CatBoost Stuff+ model, to study pitch quality and outcomes.

    Jupyter Notebook

  4. schedule-optimization schedule-optimization Public

    MILP-based four-year course scheduler with prerequisite/corequisite constraint modeling, built with OR-Tools. CSE 478 team project.

    Jupyter Notebook

  5. cradduhj/hockeyMoneyScore cradduhj/hockeyMoneyScore Public

    SLM 418 Final Project - NHL Performance Data

    Python

  6. college-baseball-trackman-db college-baseball-trackman-db Public

    Normalized 17-table MySQL schema for national college baseball Trackman data, with a documented audit/revamp pass (indexing, FK constraints, a real data-integrity bug fix).