Christopher O’Hara | Ohara's Atelier

Assurance-Centered Agentic AIOps for Industrial DevSecAIOps

Contested orchestration, policy gates, and local-cloud OT control planes

Purpose. This post summarizes the public-facing architecture behind my integrated industrial application project: an assurance-centered agentic AIOps artifact for IIoT/OT operations. The reposit...

Posted by Christopher O'Hara on May 8, 2026

SOX ITGC Control Assurance as a Cybersecurity System

Evidence, exceptions, threat intelligence, and audit-ready control health

Purpose. This post documents a public lab I built to make SOX IT general controls concrete: a simulated financial-systems control environment with evidence packets, deterministic tests, risk sco...

Posted by Christopher O'Hara on April 18, 2026

Noisy Neighbors in Real-Time IIoT Edge Systems

EDF Scheduling, Interference, and Knowledge Graph Insights

This post is framed as an AIOps case study, where we combine runtime observability, scheduling analysis, and knowledge graphs to diagnose a noisy-neighbor fault in a multi-robot IIoT environment. ...

Posted by Christopher O’Hara on September 25, 2025

FSMs and Logic Controllers

A System Design Course Example

Finite State Machines (FSMs) and logic controllers are core abstractions in system design. They appear everywhere: industrial PLCs, avionics control loops, robotics, automotive ECUs. These structur...

Posted by Christopher O’Hara on September 21, 2025

Kalman Filters: Multimodal LLM Breaking

A worked LTI example, explicit derivation, and practical extensions

Kalman filtering is often presented with simplified block diagrams that hide where noise actually enters the system and whether a direct feedthrough exists. For robust evaluation (or grading) of a ...

Posted by Christopher O'Hara on September 17, 2025

PID Controllers and Error Dynamics

A Process Control Course Example

Proportional–Integral–Derivative (PID) controllers are the workhorse of process control and instrumentation. They appear everywhere: chemical reactors, power plants, spacecraft attitude loops, vehi...

Posted by Christopher O’Hara on September 15, 2025

Resilience Engineering & System Evolution

Seven-paper synthesis and a completed research program on adaptive robots

Purpose. Rewrite of my full investigation notes (originally compiled as a graduate diploma final report) into a blog-friendly format. I preserved the technical detail: paper summaries, images, c...

Posted by Christopher O’Hara on January 20, 2025

Evolving GRN–Metabolic Networks: Signal Transduction under Selection

Universal Biology: How to _design life?_

Notebook: Code and figures are available in the companion Jupyter notebook: OHARA_Universal_Biology_GRN_Metabolic.ipynb Introduction This post couples a gene regulatory network (GRN) with a met...

Posted by Christopher O’Hara on March 25, 2024

Unsupervised Learning for Software Defect Prediction

KC1 (NASA), Method Motivations, Effort–Difficulty Maps, and PHM Transfer

Modern engineering often begins with lots of data and few trustworthy labels. The NASA KC1 software dataset is a classic example: many module metrics (Halstead, complexity, coupling), sparse/uncert...

Posted by Christopher O’Hara on February 12, 2024

Japan: SPRING-GX, WING-CFS, and SDGs

Interdisciplinary Energy and Resilience Experiences

Purpose: The SPRING-GX and WING-CFS programs at the University of Tokyo are designed to produce researchers capable of bridging science, engineering, policy, and medicine. My participation conne...

Posted by Christopher O’Hara on December 20, 2023

ABOUT ME

Ohara's Atelier

AI System Architect & Digital-Twin Engineer