Intelligent Networks Laboratory

We've produced the summer releases of our graph systems simulator, Graphitti (v1.1), and our graph systems analysis software (v0.5-alpha). This version of Graphitti includes a number of enhancements and significant negative code written (with the promise of more negative code as we push some of the changes through the code base), including the ability to write graph structures out during the simulation (and at the end), a redo of how we specify graphs (so we're now exclusively using GraphML for this), working CPU STDP (spike timing dependent plasticity) code, new Recorder classes for simplified data file generation requiring no new code for new models, a new DeviceVector class for automatic GPU memory management, and a variety of internal improvements (mostly simplifications). Our graph systems analysis code includes code for analyzing STDP effects on structure and behavior, spatiotemporal behavior analysis of neural networks, and basic analyses for ESCS (emergency services communications systems).

Hari Priya Dhanasekaran successfully defended her MS thesis, "Understanding Neural Burst Patterns Through Graph Neural Network Explainability in Simulated Neuronal Networks".

Arjun Taneja successfully defended his MS project, "Spatiotemporal Analysis of Neuronal Avalanches in Self-Organized Criticality".

Prof. Stiber gave the presentation, "Spatiotemporal bursting in simulated cortical cultures", co-authored with Natalie Gonzales, at the Neural Coding 2025 meeting.

Avikant Wadhwa successfully defended his MS thesis, "Abstractions for Code Migration from CPU to GPU in Simulation Domain".

Our lab contributed a chapter to the book Perspectives on Paradata: Research and Practice of Documenting Data Processes, which had its official book launch today. The book is open access and can be downloaded free of charge. Our chapter is "Paradata in Emergency Services Communications Systems", by Megan Cohen, Jardi Martinez Jordan, M. Scott Sotebeer, and Michael Stiber.

Prof. Stiber gave the keynote talk, "An Orientation to AI for Natural Intelligences" at the IEEE New Era AI Innovation Renaissance conference in Bothell.

Jardi Martinez Jordan presented the paper "Graph-based Modeling and Simulation of Emergency Services Communication Systems", co-authored with Prof. Stiber, at the 32nd International Conference on Modeling, Analysis and Simulation of Computer and Telecommunication Systems (MASCOTS) in Krakow, Poland.

Xiang Li successfully defended her MS project, "Agile Data Recording Architecture for Complex Scientific Simulations".

Jardi Martinez Jordan successfully defended his MS thesis, "Graph-based Modeling and Simulation of Emergency Services Communication Systems".

Prof. Stiber regularly presents an introduction to our lab's work at the CSS graduate seminar, CSS 599; this is one way that our graduate students learn about INL. At this meeting, he received a word cloud from students' summaries of his talk:

We had one undergraduate present at the UWB School of STEM Summer Symposium: Andrzej Dawiec, "Developing Graph-Based Systems With Graphitti".

Link to Publication
Alumna Jewel Lee's publication, "Ambulatory Risk Models for the Long-Term Prevention of Sepsis: Retrospective Study" is linked above.

Divya Kamath successfully defended her MS project, "Migrating a complex, CPU-GPU based simulator to modern C++ standards".

Prof. Stiber's interview with KIRO-7 TV news on how to protect yourself online was on the air and is reachable online by clicking on the image above.

We had one undergraduate present at the UWB School of STEM Summer Symposium: Alex Neary, "Using GIS data to model NG911".

Ashwini Rudrawar successfully defended her MS project, "Evaluating impact of GPU API evolution on software development and application performance".

Graduate student Jardi Martinez Jordan presented the poster, "Graph-Based Simulation of Emergency Services Communications Systems" at the 2022 Annual Modeling and Simulation Conference in San Diego.

One lab member presented at the UW Bothell School of STEM Spring Symposium:

• Conor Mcintosh: Automation of UML and Coding Style Checks on Graphitti Project

Tony Varela successfully defended his thesis, "Discrete Learning Submodels in Artificial Neural Networks".

INL undergraduate Natalie Gonzales presented her Mary Gates Scholarship research, "Bursting Activity Across Simulated Neural Networks" at the 25th Annual UW Undergraduate Research Symposium. Sadly, Prof. Stiber didn't take a photo while she was presenting.

One lab member presented at the the UW Bothell School of STEM Winter Symposium:

• Vu Tieu: Intelligent Networks Lab

Four lab members presented their work at the UW Bothell School of STEM Autumn Symposium:

• Natalie Gonzales: Bursting Activity across Simulated Neural Networks
• Shakeel Khan: Workbench: A Provenance Visualization Tool
• James Kim: Graphitti — Improving Software Maintainability
• Mark Sorvick: Graphitti: A Graph-Based Simulator
• Angelina Tang: Developing Education Software on Web-Based Neural Networks

The INL secured funding support from InterPARES Trust AI for a project to develop a repository of emergency communications data (911 in the US) and apply AI techniques to that data to infer "real world" events from the emergency calls made and to help us understand how cyber-attacks could effect emergency communications. This project is in collaboration with colleagues Erik Borglund (Mid Sweden University), Megan Cohen (University of British Columbia), Barbara Endicott-Popovsky (University of Washington), Arika Kaneko (University of British Columbia), Scott Sotebeer (USA Strategics), and Samuel Tweneboah-Koduah (Ghana Institute of Management and Public Administration). InterPARES Trust AI is housed at the University of British Columbia and is a multi-national interdisciplinary project aiming to design, develop, and leverage Artificial Intelligence to support the ongoing availability and accessibility of trustworthy public records.

Prof. Stiber participated in an invited panel on the "Cybersecurity Lexicon" at the 25th Colloquium on Information Systems Security Education, online, October 4-6, 2021.

Three lab members presented their undergraduate capstone projects at the CSS Summer Colloquium:

• Jordan Brown: Graphitti: Graph-Based Systems Simulator
• Vivek Gandhi: Graph-based Simluations with Graphitti
• Steven Leighton: Improving Software Usability and Maintainability

Victoria Salvatore successfully defended her thesis, "Demonstrating Software Reusability: Simulating Emergency Response Network Agility with a Graph-Based Simulator", on July 29.

Joe Conquest's paper on the unified Workbench software, "Software and Data Provenance as a Basis for eScience Workflow" was accepted to IEEE eScience 2021.

Based on our work on extending our Graphitti simulator to next-generation 911 emergency communications systems, our grant from the US National Security Agency has been funded for a second year. This is important recognition of all of the hard work by our lab members!

Undergraduate capstone project presented at the CSS Spring Colloquium:

• Kyle Dukart: Advancing Software Maturity in a Graph-Based Simulator

Lab member Natalie Gonzales was featured in a UW Bothell news article about her Mary Gates Scholarship.

With the transition of our core simulation infrastructure from "BrainGrid" to "Graphitti", and the expansion of our laboratory's research aims from computational neuroscience and data analysis to all types of network-structured systems and AI-driven data analysis, we are rebranding our laboratory as the Intelligent Networks Laboratory. This has been a year in the making as we've worked to revamp our tools to apply to a wider range of problems. To celebrate, we have an entirely new website design!

Prof. Stiber was gratified to be nominated for the UW Bothell Distinguished Research, Scholarship, and Creative Activity Award. Although he was not the final recipient, he was touched by this show of support from students and colleagues.

Congratulations to Natalie Gonzales, who has earned a prestigious Mary Gates Research Scholarship to support her work in our laboratory! Natalie will be investigating how spike timing dependent plasticity (STDP) changes the behavior of network bursting during development.

Snigdha Singh successfully defended her thesis, "Graph Analysis For Simulated Neural Network With STDP" on March 11.

Prof. Stiber is one of the faculty featured in the video below, developed to provide new students, particularly pre-majors, with an introduction to our Technology and Engineering meta-major.