Lorena A Barba

Lorena A Barba

@labarba.bsky.social

Engineering professor, computational scientist, jazz buff, techie, academic writer & font geek. Faculty director of the GW Open Source Program Office. https://lorenabarba.com www.linkedin.com/in/lorenabarba

3.8K followers390 following124 posts

Last spring I taught a graduate course built on the idea that 𝘧𝘭𝘶𝘦𝘯𝘤𝘺 𝘸𝘪𝘵𝘩 𝘈𝘐 𝘪𝘴 𝘢 𝘳𝘦𝘴𝘦𝘢𝘳𝘤𝘩 𝘴𝘬𝘪𝘭𝘭, not a novelty: 𝗚𝗲𝗻𝗲𝗿𝗮𝘁𝗶𝘃𝗲 𝗔𝗜 𝗳𝗼𝗿 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 𝗥𝗲𝘀𝗲𝗮𝗿𝗰𝗵—all the course materials are now public. Take it, use it, adapt it for your own students or your own research. barbagroup.github.io/mae6291-genai/

barbagroup.github.ioGenerative AI for Engineering Research (MAE-6291) — Lorena A. Barba groupMAE-6291, Spring 2026. A graduate course teaching engineering PhD students to use generative AI as a research accelerator. Lecture notes and slides, openly shared.

The Journal of Open Source Software, JOSS, is embarking on the search for its next editor-in-chief. Founder EIC Arfon Smith is stepping down after a whole decade of incredible service. Interested in filling those big shoes? Apply by June 19, 2026: blog.joss.theoj.org/2026/05/call...

blog.joss.theoj.orgJOSS is seeking a new Editor-in-Chief | Journal of Open Source Software BlogAfter a decade of building and running JOSS, our founding Editor-in-Chief is stepping down. We're seeking a new EiC to lead editorial direction for the Journ...
Arfon Smith@arfon.bsky.social

After 10 years, I'm stepping down as Editor-in-Chief of @joss-openjournals.bsky.social. A few thoughts on the decade: www.arfon.org/stepping-dow... The EiC call: blog.joss.theoj.org/2026/05/call... #opensource #openscience

I just published open materials from our "AI Academy" for engineering faculty. Session 4 tackled the big shift: AI now does much more than answer your questions. It can go away, do research, and come back with a deliverable—faculty need the framework to understand this.

The session walks through: → How tools like deep research actually work behind the scenes → When to let AI run autonomously vs. when to stay hands-on → How to connect AI to yourthe tools you already use → How to write down your expertise so AI can follow it consistently

All materials are openly licensed (CC-BY) on Figshare. Use them, adapt them, build on them. 👉 doi.org/10.6084/m9.f... If you're helping faculty navigate AI at your institution, I hope this is useful.

doi.orgAI Academy Session 4: Agentic AI — From Asking Questions to Delegating TasksInstructional materials for the GW Engineering AI Academy, exploring the shift from conversational AI to "agentic" workflows, where AI systems act with increasing autonomy to execute multi-step tasks.Key topics covered include:The Anatomy of an AI Agent: Defining the "thought–action–observation" loop and the three essential ingredients for agency: reasoning, tools, and memory. The Model Context Protocol (MCP): An explanation of the industry-standard protocol that allows AI models to connect seamlessly with external services like Google Drive, Gmail, and GitHub. Agent Skills: Introduction to a standardized format (SKILL.md) for packaging domain-specific expertise—such as ABET accreditation mapping—into portable, reusable instructions for AI agents. Practical Workflows: Strategies for faculty to transition from manual prompting to orchestrating autonomous assistants that can analyze course outcomes, review student reports, or conduct deep research. The document includes an appendix demonstrating a concrete example of an agent skill for mapping Course Learning Outcomes (CLOs) to ABET Student Outcomes. See the full skill at: https://github.com/labarba/abet-clo-mapper GW AI Academy, session 4, April 3, 2026.

At #JupyterCon, I saw the future of AI collaboration for data science and beyond—and it's not in a chat window. Abigayle Mercer and Zach Sailer demoed an experimental new version of Jupyter AI and it changes the plot for multi-agent systems. A thread with my thoughts… 🧵

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Current multi-agent frameworks (LangChain, AutoGen) orchestrate agents in the background. User prompts → agents debate invisibly → result appears. Jupyter AI makes agent coordination transparent. Human-in-the-loop, all the way down.

At #JupyterCon, I saw the future of AI collaboration for data science and beyond—and it's not in a chat window. Abigayle Mercer and Zach Sailer demoed an experimental new version of Jupyter AI and it changes the plot for multi-agent systems. A thread with my thoughts… 🧵

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Here's the genius: they're using @jupyter.org's Real-Time Collaboration (RTC) protocol—originally designed for humans—as the rail for AI interaction. AI agents get cursors and chat privileges, just like human collaborators. They just "enter the chat" when needed.

This respects what #Jupyter actually is: a medium for dialogue. Not a REPL with a GUI. Not an IDE with a chatbot bolted on. A conversational space where humans negotiate truth through computing.

At #JupyterCon, I saw the future of AI collaboration for data science and beyond—and it's not in a chat window. Abigayle Mercer and Zach Sailer demoed an experimental new version of Jupyter AI and it changes the plot for multi-agent systems. A thread with my thoughts… 🧵

If you use AI daily, you know "chat fatigue": prompt ➡ wait ➡ read ➡ re-prompt ➡ repeat Constantly context-switching between your work and a chat sidebar. Jupyter AI's new direction avoids this entirely.

In the demo: a Code-Cell-Editor agent encountered a statistics problem. It knows its limitations, so it @-mentioned a Statistician persona. The handoff happened visibly in the notebook—not in some hidden backend. The model is agents are teammates, not black boxes.

𝗖𝗼𝗺𝗲𝘁 𝗿𝘂𝗻𝘀 𝗰𝗶𝗿𝗰𝗹𝗲𝘀 𝗮𝗿𝗼𝘂𝗻𝗱 𝗝𝘂𝗽𝘆𝘁𝗲𝗿 Friends, I watched an AI agent complete my students' coding exercises in real-time, and I'm shook 🤯 I tested Perplexity's Comet browser on a Jupyter notebook with eigenvalue problems I assigned to my class… (video at the bottom of this thread)

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We're facing a 𝘄𝗶𝗰𝗸𝗲𝗱 𝗰𝗵𝗮𝗹𝗹𝗲𝗻𝗴𝗲: motivating genuine learning when the tools have become this capable. Assignments should help critical thinking rather than just testing procedural knowledge. But the pace and the scale of the changes required are 𝘮𝘰𝘯𝘴𝘵𝘳𝘰𝘶𝘴.

𝗖𝗼𝗺𝗲𝘁 𝗿𝘂𝗻𝘀 𝗰𝗶𝗿𝗰𝗹𝗲𝘀 𝗮𝗿𝗼𝘂𝗻𝗱 𝗝𝘂𝗽𝘆𝘁𝗲𝗿 Friends, I watched an AI agent complete my students' coding exercises in real-time, and I'm shook 🤯 I tested Perplexity's Comet browser on a Jupyter notebook with eigenvalue problems I assigned to my class… (video at the bottom of this thread)

What I witnessed: – The AI assistant analyzed the entire Jupyter notebook – Executed code cells autonomously – Wrote proper NumPy functions – Solved exercises completely – Even explained its reasoning All faster than students could read the problem statement.

I just rejected a paper because it was pointless in the age of AI. For the first time, I recommended a manuscript be rejected because its content was so easily replicable by an AI model with deep research capabilities. #AcademicPublishing #AIinResearch

The paper's abstract promised a "review of key trends" in AI for engineering education. My reasoning for immediate rejection: anyone can generate this with a single, well-crafted prompt. I tested it in Gemini 2.5 Pro, and the results were stunningly good and likely similar to the submitted article.

This raises a critical question: Are certain genres of scholarly work—especially simple literature reviews or trend summaries—no longer valuable as original scholarship? It's time for academia to rethink what we consider "original." What do you think? #PeerReview

🧵 Fall 2025 faculty: I wrote 7 pages on what you need to know about AI before classes start in a week or two—it's posted as PDF in the ‪@figshare.com‬ service under CC-BY: link below… Here are the highlights: 1/8

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7) Beware wearables: Smart glasses can photograph exam questions and get live AI answers. Your syllabus needs wearables policies NOW. Bottom line: Students will use AI anyway. Let's redesign courses to help them thrive with it. Full piece: doi.org/10.6084/m9.f... 8/8

doi.orgColleagues: what to know about AI as you plan your Fall 2025 coursesThis is an incomplete list of major developments and items to consider about the state of generative artificial intelligence, as we approach the Fall 2025 semester. My goal is simply to bring to your ...

🧵 Fall 2025 faculty: I wrote 7 pages on what you need to know about AI before classes start in a week or two—it's posted as PDF in the ‪@figshare.com‬ service under CC-BY: link below… Here are the highlights: 1/8

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5) AI is much more than chat. It's autonomous agents doing research, filling forms, completing coursework. One prompt = entire literature review. Will you change expectations of what students do in your class? 6/8

6) The AI polarity: It can amplify learning OR create cognitive laziness. The difference is in how we design assignments and teach usage. How might you design for active AI use and promote user patterns that result in positive outcomes? 7/8

🧵 Fall 2025 faculty: I wrote 7 pages on what you need to know about AI before classes start in a week or two—it's posted as PDF in the ‪@figshare.com‬ service under CC-BY: link below… Here are the highlights: 1/8

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3) Students perceive that they know AI better than faculty (they're probably right). This gap is creating stress and missed opportunities for everyone. What are you going to do about this? 4/8

4) Entry-level jobs were down 15% in 2024, and unemployment for new grads hit 4-year high this year. Meanwhile, companies now require AI use in their teams, and are conducting AI-enabled job interviews. Are we preparing students for this? 5/8

🧵 Fall 2025 faculty: I wrote 7 pages on what you need to know about AI before classes start in a week or two—it's posted as PDF in the ‪@figshare.com‬ service under CC-BY: link below… Here are the highlights: 1/8

1) Google just gave all US college students free access to Gemini Pro. They just need an .edu email for verification. This means validity of your take-home assignments is cooked: Gemini can do complex work for students and they don't need to think… 2/8

2) ChatGPT now has "Study Mode" and Gemini has "Guided Learning"—both promise Socratic tutoring versus immediate answers. But will students choose the hard path when instant answers are a click away? (They can turn Study mode on/off!) 🤔 3/8

Lorena A Barba reposted

Good benchmarks allow a user to choose the best method for a particular application. “But the first question is, what do we mean by ‘better’?” Fascinating story by @drmichaelbrooks.bsky.social on benchmarking in #AI. Thx @labarba.bsky.social for the suggestion! 🧪 www.nature.com/articles/d41...

nature.comIs your AI benchmark lying to you?Artificial intelligence models are too often assessed against flawed goals — a stumbling block for progress.

I did a hands-on tutorial for easily creating a static website using #Jekyll and #GitHub Pages. No local installations—everything is done directly on @github.com! Follow along to: – Fork a Jekyll theme – Deploy with GitHub Actions – Edit the content – Solve issues with #GitHubCopilot (link in reply)

I just released a preprint reporting on my experiment with generative AI in my Engineering Computations course. TL;DR: It was a mess. The biggest issue? The "illusion of competence." #GenAI #education #edtech

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Key takeaway: We have to adapt. AI isn't going away. We need to find the line between helpful tool and crutch. And share our failures, not just our successes. It requires courage! #genAI #learninginpublic

I just released a preprint reporting on my experiment with generative AI in my Engineering Computations course. TL;DR: It was a mess. The biggest issue? The "illusion of competence." #GenAI #education #edtech

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The "illusion of competence"—that's when learners think they understand, but the knowledge isn't really sticking (like what happens after a "clear lecture"). AI gave them quick answers, but they didn't actually get the concepts. Sound familiar?

Tried to adjust the exam format, and the students revolted. 😬 It highlighted a key issue: are our assessments valid in the age of AI? What now? I've scrapped homework and exams (yes I did!) and moved to in-class, collaborative exercises. It's better, but still a WiP…

I just released a preprint reporting on my experiment with generative AI in my Engineering Computations course. TL;DR: It was a mess. The biggest issue? The "illusion of competence." #GenAI #education #edtech

I really thought providing an AI tool trained on course materials (via RAG) would be a game-changer. Instead, students started using it to bypass actual learning. Attendance tanked. Class dynamics broke down as I tried to remedy learning loss…

Starting now! So excited for our inaugural #GWOSCON Dean Geneva Henry welcoming everyone with optimism about the role of #OpenSource in our university. Inspiring!

CURIOSS@curiossorg.bsky.social

🍀 Best of luck to #CURIOSS member, @david-lippert.bsky.social, and all involved in the inaugural #GWOSCON next week! 🏆 What a great tagline from @labarba.bsky.social : "Free to attend, free t-shirt, free lunch, free coffee ☕️ And of course, free and open source software 🚀" ℹ️ bit.ly/4imRlDZ

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Starting now! So excited for our inaugural #GWOSCON Dean Geneva Henry welcoming everyone with optimism about the role of #OpenSource in our university. Inspiring!

CURIOSS@curiossorg.bsky.social

🍀 Best of luck to #CURIOSS member, @david-lippert.bsky.social, and all involved in the inaugural #GWOSCON next week! 🏆 What a great tagline from @labarba.bsky.social : "Free to attend, free t-shirt, free lunch, free coffee ☕️ And of course, free and open source software 🚀" ℹ️ bit.ly/4imRlDZ

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#OpenSource software is more secure! In 2024/25, the CMS OSPO partnered with CISA to ran a bug bounty: 200 vulnerabilities were submitted and 18 critical vulnerabilities identified and cleared. If exploited they would have cost millions of dollars!

Starting now! So excited for our inaugural #GWOSCON Dean Geneva Henry welcoming everyone with optimism about the role of #OpenSource in our university. Inspiring!

CURIOSS@curiossorg.bsky.social

🍀 Best of luck to #CURIOSS member, @david-lippert.bsky.social, and all involved in the inaugural #GWOSCON next week! 🏆 What a great tagline from @labarba.bsky.social : "Free to attend, free t-shirt, free lunch, free coffee ☕️ And of course, free and open source software 🚀" ℹ️ bit.ly/4imRlDZ

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Paul Barrett began advocating for the use of #Python in astronomy while working at Goddard Space Flight Center. In his talk, "The Early Years of Scientific Python," he notes that key to scientific Python was the slicing or indexing syntax, enabling multi-dimensional arrays! 🚀 #GWOSCON

Starting now! So excited for our inaugural #GWOSCON Dean Geneva Henry welcoming everyone with optimism about the role of #OpenSource in our university. Inspiring!

CURIOSS@curiossorg.bsky.social

🍀 Best of luck to #CURIOSS member, @david-lippert.bsky.social, and all involved in the inaugural #GWOSCON next week! 🏆 What a great tagline from @labarba.bsky.social : "Free to attend, free t-shirt, free lunch, free coffee ☕️ And of course, free and open source software 🚀" ℹ️ bit.ly/4imRlDZ

March 2, 1867. CHAP. CLVIII. — An Act to establish a Department of Education. "…for the purpose of collecting such statistics and facts as shall show the condition and progress of education in the several States and Territories."