Résumé ↓

UC BERKELEY · COMPUTER SCIENCE

Ethan Xu

ETHAN

Hey, I'm Ethan. I study CS at Berkeley, build ML models, scrape messy data, and write research papers about what I find.

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WORLD 1

Player select

Portrait of Ethan Xu
P1 · ETHAN XU
Class
Computer Science, B.A.
Guild
UC Berkeley
Title
Regents' & Chancellor's Scholar
GPA
4.0
Grad
May 2028

I build machine learning models and the data pipelines behind them, from sentiment models that read earnings calls to trading-strategy backtests and a NeurIPS workshop paper on sentiment drift in LLMs. Outside research, I've spent four years teaching kids around the world to code.

Inventory

  • PyPython
  • TfTensorFlow · Keras
  • HfHugging Face
  • PdPandas
  • BsBeautiful Soup
  • JvJava
  • ApAspen Plus
  • ScScratch

WORLD 2

Quest log

  1. ● Active Fall 2026 – Now

    Undergraduate Researcher

    URAP · UC Berkeley

    • Building a pipeline that scrapes American Economic Review issues and pulls citation counts from the Crossref and OpenAlex APIs to rank recent work by impact.

    Rewards Python · Web scraping · REST APIs

  2. ★ Complete Oct 2024 – Dec 2025

    Algorithm Developer

    IPMD Inc. · ASTAI Group

    • Built logistic-regression models with output thresholds in Keras/TensorFlow that beat S&P benchmarks by 13% over 10 years in backtests.
    • Backtested Elliott Wave, candlestick and support/resistance strategies on 10 years of daily S&P 500 OHLCV data, reaching a 20% cumulative return.
    • Built an automated Yahoo Finance news-ingestion pipeline with Beautiful Soup to feed sentiment into multimodal models.

    Rewards TensorFlow · Keras · Backtesting · NLP

  3. ★ Complete Jun 2025 – Sep 2025

    Lab Assistant, Dr. Christoph Eick

    Data Analysis & Intelligent Systems Lab · University of Houston

    • Mapped NOAA underwater elevation data to geofenced deep-sea images to build training sets.
    • Helped develop a CNN that classifies, labels and extracts front-facing horizon images from large deep-sea datasets.

    Rewards Computer vision · CNNs · Geospatial data

  4. ★ Complete Apr 2025 – Sep 2025

    Research Assistant, Dr. Melissa Baldo

    College of Business · Lamar University

    • Researched short-sea freight shipping as a sustainable alternative to US trucking under the Jones Act.
    • Wrote original case studies comparing GHG and PM emissions against rail and trucking for real Texas freight routes; built all tables and figures for a paper submission.

    Rewards Research writing · Emissions analysis

  5. ★ Complete May 2022 – Jul 2026

    Program Coordinator, Board Member & Instructor

    Appropriate Development Technology (ADTech) Inc.

    • Led a 6-week STEM summer camp across 8 subjects for 60+ underserved students internationally.
    • Taught three 10-week Python courses to 50+ students across 3 continents.

    Rewards Leadership · Teaching

  6. ★ Complete Jun 2024 – Feb 2025

    Code Instructor

    Beaumont Code Wiz

    • Taught 20+ K–12 students in weekly programming classes; certified in Python, Java and Scratch.

    Rewards Python · Java · Scratch

WORLD 3

Loot & trophies

Publication · NeurIPS 2025

SENTINEL

Sentiment Evolution and Narrative Tracking in Extended LLM Interactions

A framework for measuring sentiment drift within long-context LLM conversations and agentic workflows, aimed at reducing LLM emotional hallucination. Published at the NeurIPS MTI-LLM 2025 Workshop.

OpenReview ↗ NeurIPS ↗

Project · ML

Fintrax

Python · Pandas · Hugging Face · Beautiful Soup

A BERT-based confidence model that compares the sentiment of executives' prepared remarks with their open Q&A answers on earnings calls, then turns the gap into buy/sell signals using transcripts scraped in real time.

GitHub ↗

Project · In progress

AER Citation Tracker

Python · Beautiful Soup · Crossref · OpenAlex

Scrapes recent American Economic Review issues, looks up each article's DOI on Crossref and OpenAlex, and outputs a CSV ranked by citation count. Built for URAP research.

Award · 2nd place

Emission-Free Maritime Transport

CAPA National Reach Paper Competition · Dec 2024

Designed and presented a new concept for emission-free shipping, including an Aspen Plus process simulation of a closed-loop Allam Power Cycle engine.

Achievements unlocked

WORLD 4

Save point

Rest here and say hi.

I'm open to internships, research roles, and interesting collaborations.

LinkedIn ↗ GitHub ↗ Résumé ↓