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Wildertrek/README.md

Welcome to Joseph's GitHub

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πŸ‘‹ About Me

I am an AI Researcher and Applied Engineer (PhD Candidate, ABD) bridging high-stakes federal missions and advanced technical implementation. Currently Vice President of AI at US AI, I architect secure, human-aligned GenAI ecosystems and lead research into Security Normal Form (SNF) for canonicalizing large-scale security telemetry.

  • Mission: To treat AI safety as an empirical science, using rigorous measurement to understand how models impact human wellbeing.
  • Current Focus: Building Agentic Workflows, Graph RAG, and automated cATO patterns for federal GenAI adoption.
  • Philosophy: "Understanding the 'latent' traits of ourselves and others is the key to breaking down barriers and fostering empathy."

πŸ”¬ Research & Dissertation: Empirical AI Evaluation

My dissertation at the University of Tennessee, Knoxville (advisor: Jens Gregor) is APERTURE, a five-paper chain on measuring personality in language-model agents when no ground truth exists. The central finding: frontier models rating well-known subjects retrieve rather than measure, so a valid instrument needs supervision that cannot be retrieved. The record behind it is 129 pre-registrations with 31 refutations reported in full.

# Paper Status Companion repo
1 A Survey and Computational Atlas of Personality Models for AI Research ACM TIST, accepted. doi.org/10.1145/3828667 survey (public)
2 The Catcher in the Cache: Retrieval, Not Measurement, in LLM Personality Inference ACM TIST, submitted Aug 2026 catcher-in-the-cache (public)
3 Knowledge Distillation for Personality Profiling at Scale: Two Operating Points and a Cache-Free Coverage Boundary In preparation public at acceptance
4 Inscribed or Evoked? Specification Richness Determines What a Persona-Initialized LLM Agent Actually Becomes Complete public at acceptance
5 Designed Traits Reach Behavior Where the Task Lets Them: The Multi-Agent Menagerie Draft public at acceptance

πŸ—ΊοΈ Computational Atlas of Personality (Paper 1)

Forty-four psychometric models across seven traditions encoded as factor chains (6,694 chains, 358 factors) with embeddings, trained classifiers, a FAISS semantic index, and an expert-evaluation toolkit. 86.8% best-per-model accuracy on 418 human-authored items from 22 published instruments.

🧒 The Catcher in the Cache (Paper 2)

Six measurement methods on 562 literary characters across 75 works. A 25-rater panel spanning nine provider families reproduces the Honesty-Humility/Agreeableness fusion that HEXACO was built to separate, and that structure collapses on characters constructed to lie outside any training corpus. A cache-membership gauge separates retrieved from measured ratings at AUC 0.99. The repo holds the notebooks, data, and explainers to reproduce the paper in experiment order.

🎯 TIMBRE and Diagnostic Scene Elicitation (Papers 3 to 5)

Ground truth designed into synthetic material so the label is true by construction and cannot be retrieved. The frozen, hash-pinned scene-routed HEXACO instrument recovers all six axes at r = 0.75 to 0.81 with test-retest 0.946. Turned around, it shows that a persona specified as conduct is recovered at r = 0.81 and holds for twenty turns, and that designed traits reach behavior on tasks with countable outcomes.

πŸ₯ APERTURE-Clinic (research only)

The same discipline applied to PHQ-9, PCL-5, CAPS-5, C-SSRS, AUDIT-C, and HiTOP: six instruments encoded, tier-0 calibration, a drafted clinician-validation protocol, and a tiered ethics framework. No patient-derived data. Expert input from a VA National Center for PTSD clinical psychologist.

πŸ›‘οΈ Security Normal Form (SNF)

Applied research at US AI to canonicalize heterogeneous security telemetry using GPU-accelerated density clustering on Kubernetes/Kubeflow: 98,639 findings reduced to 21,444 canonical clusters.


πŸ—οΈ Featured Engineering

🧠 VA CLEVER Pipeline (Observational Science)

  • Impact: Deployed the VA’s first GenAI production system on Microsoft Azure Government (MAG), scaling to 1.5M+ daily records for mental health detection.
  • Innovation: Surfaces Social Determinants of Mental Health (SDoH) through closed-loop AI observation.

πŸ“š Pedagogy & Teaching

πŸŽ“ AA-LLM-Course (Graduate Curriculum)

A complete graduate-level curriculum (COSC 650, UTK) covering the practical applications of Generative AI.

  • Modules: RAG Foundations, Agentic Workflows, and Constitutional AI.
  • Resources: 400+ curated research papers and 50+ hands-on notebooks.

πŸ› οΈ Tech Stack & Arsenal

Python PyTorch Kubernetes Azure Neo4J Docker LangChain


πŸ† Honors & Awards

  • VA Innovation Award (2024): For the CLEVER Pipeline & AI-Assistant deployment.
  • $1.34M AVIN Innovation Grant: Integrating personality models into autonomous systems.
  • $1M ENCQOR 5G Grant: AI/ML behavioral integration in connected corridors.
  • NSA Scientific Achievement Award: Critical mission research in boundary defense.

πŸ“« Connect

Pinned Loading

  1. AA-LLM-Course AA-LLM-Course Public

    Advanced Applications of LLMs

    Jupyter Notebook 3 3

  2. survey survey Public

    A Computational Atlas of 44 Personality Models β€” standardized datasets, embeddings, classifiers, and cross-model search across 6,694 traits and 358 factors

    Jupyter Notebook 1 1

  3. catcher-in-the-cache catcher-in-the-cache Public

    Paper-scoped companion for 'The Catcher in the Cache: Retrieval, Not Measurement, in LLM Personality Inference' (Paper 2, ACM TIST under review). Only the notebooks, data, and explainers needed to …

    Jupyter Notebook