brianletort.ai
Dr. Brian Letort
Enterprise AI Leader | Architect | Researcher

D. Brian Letort, Ph.D.

Head of Data Office & AI at Digital Realty

I lead enterprise AI programs, architect intelligent systems, and publish research on the infrastructure that will define the next era of human-AI work.

With 25+ years building at scale — from $13B defense proposals to global-scale AI platforms — I turn complex AI challenges into production systems, published frameworks, and open-source tools.

Scholar-Practitioner Proof

Leadership credibility reinforced by research, IP, teaching, and public knowledge work.

25+
Years Enterprise AI
5
U.S. Patents
16
Pluralsight Courses
15+ Years
Graduate Teaching
Books, papers, and industry views
Graduate, doctorate, and executive education
Keynotes, briefings, and industry talks

Current Research

Frameworks and theories I am actively developing

Selected Research

Anchor papers from a broader body of work, including the foundational Context Compilation paper, the three-paper trilogy, and adjacent research on governed AI delivery.

Zenodo PreprintFoundational paperApril 2026

Toward a Theory of Context Compilation for Human-AI Systems

Introduces the theory foundation for Context Compilation; the subsequent three-paper trilogy extends that foundation into IR/compiler semantics, runtime lifecycle, and precision-aware optimization.

DOI: 10.5281/zenodo.19490060
Zenodo PreprintPaper 1 • Representation and semanticsApril 2026

Context IR and Compiler Passes for Enterprise AI

Defines a four-level Context IR, a taxonomy of compiler passes for enterprise context pipelines, formalizes context graph breaks, and treats governance as intrinsic to compilation through policy-as-types and a portable Context ABI.

DOI: 10.5281/zenodo.19546798
Zenodo PreprintPaper 2 • Runtime and lifecycleApril 2026

Paged Context Memory: Runtime Systems for Evidence Blocks, Locality, Speculation, Linking, and Policy Preservation

Treats context as a semantic runtime: evidence blocks, working sets, locality, paging-style discipline, prediction and speculation, context GC, linking, and provenance as a causality graph with policy-preserving lifecycle transitions.

DOI: 10.5281/zenodo.19546800
Zenodo PreprintPaper 3 • Optimization and efficiencyApril 2026

Quantized Context: Utility-Preserving Compression and Mixed-Precision Context Assembly

Reframes compression as precision control with mixed-precision context assembly, distortion typing, semantic outlier protection, and recovery paths so systems stay cheap until risk demands higher fidelity.

DOI: 10.5281/zenodo.19546802
Zenodo PreprintAdjacent researchApril 2026

Cybernetic Software Delivery: A Governed Lifecycle for Agentic Engineering Work

Introduces a closed-loop lifecycle model for governing engineering work produced by autonomous agents, extending DORA with 13 new metrics.

DOI: 10.5281/zenodo.19490008

Scholarship & Influence

The site should not read like a narrow research portfolio. These signals show the broader scholar-practitioner footprint behind the current work.

Books & Publications

Multiple books, papers, and public industry writing spanning machine learning, data science, private AI, and enterprise systems.

Patents & IP

Five U.S. patents across private AI, data exchange, automation, and distributed systems architecture.

Graduate & Doctorate Teaching

15+ years teaching graduate and doctoral learners across university programs and professional education.

Pluralsight / Executive Education

16 public Pluralsight courses covering AI, RAG, LLM agents, data engineering, and enterprise AI topics.

View author page

Keynotes & Industry Voice

Executive briefings, conference talks, and public industry writing on private AI, governance, and next-generation AI infrastructure.

Systems I Build

Open-source platforms and reference implementations

MemoryOS

Research

Local-first memory pipeline. Reference implementation for Context Compilation Theory.

Praxo-PICOS

Systems

Personal intelligence operating system. Privacy-preserving, self-healing, commercial-grade.

Praxo-AgentOS

Research

Governed lifecycle tooling. Reference implementation for Cybernetic Software Delivery.

SemanticStudio

Open Source

Open-source multi-agent chat platform with GraphRAG-lite and self-learning ETL.

Latest Writing

Research notes, frameworks, and analysis

Speaking & Engagements

Available for keynotes, executive briefings, and workshops on enterprise AI, context systems, agent architectures, and the future of intelligent infrastructure.

5 U.S. Patents|16 Courses Authored|25+ Years Enterprise AI|15+ Years Graduate Teaching

“I lead AI programs, publish research, and build the systems that define how enterprises operate with intelligence at scale.”