CV

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Contact Information

Name Chase Walker
Professional Title Research Scientist
Email chasewalker@ufl.edu

Professional Summary

Research Scientist in Explainable AI specializing in attribution methods and faithfulness metrics for vision, language, and multimodal transformers. Author of 7 peer-reviewed publications at AAAI, ICLR, IJCAI, and AISTATS, with state-of-the-art contributions to attribution methods and metrics, robustness, and out-of-distribution detection. My work emphasizes principled, quantitative evaluation and reproducible research, alongside mentoring and open research software development

Experience

  • 2024 - present

    Gainesville, FL

    Graduate Research Assistant
    AI and Computing Lab
    Conduct research in Explainable AI (XAI), developing attribution methods and evaluation metrics for deep neural networks with applications in adversarial robustness and out-of-distribution detection for high-stakes deployments.
    • Developed Metric-Driven Attributions (MDA) framework outperforming 7 ViT attribution methods by 12% across 12 metrics on ImageNet, establishing state-of-the-art in transformer interpretability (ICLR 2025).
    • Developed attribution graphs to enable an understanding of how causal information propagates from an LLM prompt to its generation, improving faithfulness on SOTA LLMs by 20% on average (Preprint 2025).
    • Pioneered Magnitude Aligned Scoring (MAS) XAI evaluation benchmark 4x more sensitive to attribution changes, 2x more consistent, 1.6x more baseline-invariant than existing metrics (IJCAI 2024).
    • Designed Integrated Decision Gradients (IDG), a novel path-based attribution to address gradient saturation in deep networks, achieving state-of-the-art performance (AAAI 2024).
    • Created InFlow, an information flow-based explanation framework for ViTs outperforming 6 attribution methods by up to 18% in eight metrics (AISTATS 2025).
    • Developed attribution-based adversarial detection system achieving 99% accuracy classifying pixel and patch attacks in CNNs trained on ImageNet; supported by DARPA (MILCOM 2023).
    • Invited talk: “Towards Effective XAI of Modern Models”. Prince of Songkla University, Thailand (2024).
    • Best Poster Award: 2025 Nelms IoT Conference.
    • Mentored 12 undergraduate researchers; outcomes include 3 honors theses and 2 graduate admissions.
    • Reviewed for ICLR, ICML, IJCAI, CVPR, ECCV, and JMLR.
    • Volunteered for the 2024 and 2025 Nelms IoT Conferences.
  • 2021 - 2021

    Remote

    Back-End Developer Intern
    Avanade/Accenture
    • Contributed to 10-person development team building enterprise CRM system for field service management.
    • Architected and deployed CI/CD pipeline using Azure DevOps, reducing deployment time and increasing release reliability for client-facing applications.
    • Automated business workflows using Power Automate and Azure services, eliminating weekly manual processing and improving customer response time.
  • 2019 - 2021

    Orlando, FL

    Full Stack Developer & Electrical Engineering Intern
    Limbitless Solutions
    • Built website from design mockups as sole developer (Bootstrap/HTML/CSS/JS), serving as primary platform for donor outreach and patient enrollment; 80\% of code remains in production after 7+ years.
    • Built internal project and people management tools as sole developer, streamlining workflow coordination for 30+ person engineering team.
    • Designed custom HCI PCBs enabling gamified learning for prosthesis control.
    • Conducted human-subjects studies validating user experience improvements for pediatric patients.

Education

  • 2024 - 2026

    Gainesville, FL

    Doctor of Philosophy
    University of Florida
    Computer Engineering
    • Expected Graduation in August of 2026
    • Dean’s Research Award
  • 2022 - 2024

    Orlando, FL

    Master's of Science
    University of Central Florida
    Computer Engineering
    • Graduate Dean’s Fellowship
    • Graduate Presentation Fellowship
    • Alireza Seyedi Innovation Endowed Scholarship
  • 2018 - 2022

    Orlando, FL

    Bachelor's of Science
    University of Central Florida
    Computer Engineering
    • Burnett Honors College Graduate

Publications

References

  • Dr. Rickard Ewetz

    Associate Professor

    University of Florida

    rewetz@ufl.edu

    Dr. Rickard Ewetz is my PhD advisor.

  • Dr. Sumit Jha

    Professor

    University of Florida

    sumit.jha@ufl.edu

    Dr. Sumit Jha has been a frequent collaborator and co-author thoughout my PhD.

  • Dr. Albert Manero

    Executive Director

    Limbitless Solutions

    albert@limbitless-solutions.org

    Dr. Albert Manero was the head supervisor during my internship at Limbitless Solutions.

  • John Sparkman

    Director, Head of Research and Development of Technology

    Limbitless Solutions

    john.sparkman@limbitless-solutions.org

    John Sparkman was my primary supervisor during my internship at Limbitless Solutions.