Josiah Hester

Assoc. Prof at @GTComputing. Kanaka maoli (Native Hawaiian). I build sustainable computational things. Prev. @NorthwesternU. I direct

[Josiah Hester @ProfJosiah]

It was wonderful to host you President @CabreraAngel!

[Ángel Cabrera @CabreraAngel]

My @gtcomputing colleagues @ProfJosiah + Celine @eiclab Lin are working with @ARPA_H on a surgically implantable intelligent device to target immunotherapy dosage adjusted in real time to a patient's cancer evolution, improve treatment, save lives, and reduce side effects

[Georgia Tech Computing @gtcomputing]

We're getting ready for @ACM_CSCW 25 ahead of next week's program (Oct. 20-22)! Check out our visual analysis 📊 of all 573 papers!

Stick around and meet Tech's paper experts (60 total) with 22 faculty, led by the College of Computing.

Explore now 🔗: https://t.co/azXOukISSP

[Josiah Hester @ProfJosiah]

These encodings were "lossy" of course, but useful. Given LLMs' extraordinary resource cost (water, energy, etc), we need better lossy encodings of the natural world. So I say again, look to how Indigenous folkx do it! (4/4)

[Josiah Hester @ProfJosiah]

Indigenous folks for millennia designed and validated systems, stories, traditions, and songs that map the natural 3D world in interpretable, teachable, even personal ways.

If LLMs hope to overcome this next hurdle, ask us (Indigenous) how we did it first. 🧵

[Rohan Paul @rohanpaul_ai]

Fei-Fei Li (@drfeifei) on limitations of LLMs.

"There's no language out there in nature. You don't go out in nature and there's words written in the sky for you.. There is a 3D world that follows laws of physics."

Language is purely generated signal.

[Josiah Hester @ProfJosiah]

Stories and even the structure of our society encoded aspects of the natural world in ways that were transmittable and also entertaining! Hula, and chants, are some of the highest forms of this idea. (3/4)

[Huaishu Peng @huaishup]

Tackling ♻️E-Waste with 💧DissolvPCB
E-waste is a global crisis. But for many engineers and designers, it can feel out of reach. We create electronics every day, yet the end-of-life impact often goes unaddressed.

Our new #UIST2025 paper takes a step toward changing that. DissolvPCB is a fabrication method for fully recyclable printed circuit boards that can be produced with any off-the-shelf FDM 3D printer. It uses PVA as the substrate and EGaIn as the conductor material.

🪦 At the end of its life, the PCB simply goes into water. The PVA dissolves, the EGaIn gathers into a reusable liquid metal bead, and components are fully recovered. These materials can then be reused to fabricate another PCB, closing the loop.

🛠 DissolvPCB works with through-hole and surface-mount components, supports single- and double-sided boards, and can be extended to 3D form factors or even 4D printing.

💻 We have also released an open-source KiCAD-based EDA tool to make adoption easy. Software: https://t.co/ROvAyoSMoc
📄 Paper preprint: https://t.co/XevuLgnxQl

Led by @ZYYan20H and Suhwan Hong, with amazing collaborators @ProfJosiah and @cheng_tingyu.

🤔 What if every PCB we designed could have a second life?

[Tingyu Cheng @cheng_tingyu]

The Internet of Matter (IoM) lab at Notre Dame CSE (https://t.co/HkSv771pQ0) is hiring one postdoctoral researcher or visiting scholars with a background in printed electronics and embedded systems. The ideal candidate should have hands-on experience with fabrication, such as printed electronics, PCB design, textile (knitting, weaving) and some level of machine learning.

If interested, please feel free to reach out or drop me a message. Retweets appreciated!

[Tech Square ATL @TechSqATL]

Taking battery-free computing to new heights ✈️

Although UAVs have many functions, their reliance on batteries also causes many limitations, including shorter and more expensive flights, as well as detrimental environmental effects. Research from GT's schools of Interactive Computing (@ICatGT) and Computer Science (@gatech_scs) showcases how UAVs can become more widespread: solar power. ☀️

🔗 Read the full article here: https://t.co/1qQ7ayEUut

@ProfJosiah

[Josiah Hester @ProfJosiah]

Jason taught the first embedded computing systems class I ever took 15+ years ago. I'm now a tenured prof at Georgia Tech– time flies!

But also he looks exactly the same and the dad jokes are still strong.

[FAU I-SENSE @FAU_ISENSE]

Grateful to @ProfJosiah for an incredible I-SENSE Seminar!
Also a full-circle moment—15+ years of collaboration with I-SENSE Executive Director Jason Hallstrom!

[FAU I-SENSE @FAU_ISENSE]

Honored to host White House PECASE awardee @ProfJosiah for a deep dive into embedded systems for good.
💡 Sustainability
🌍 Social impact
🔧 Tech that empowers
Join us: https://t.co/7FVcOnRN4S

[Tech Square ATL @TechSqATL]

🌺 Bridging Tradition & Technology in Hawai‘i’s Classrooms 🌺

Hawai‘i’s Kaiapuni schools face unique challenges in integrating computer science education—from teacher shortages to Western-centric learning tools that overlook cultural relevance.

Dr. Josiah Hester (@ProfJosiah) and his team at the @GeorgiaTech Ka Moamoa Lab located in Tech Square's TSRB building are working to change that. Their research is creating culturally responsive tech solutions that empower teachers and keep students connected to their heritage—while preparing them for the future of AI and computing.

🔗 Read more about how emerging technology is reshaping Hawaiian CS education in our latest article: https://t.co/O4jx1CzT4l

[Josiah Hester @ProfJosiah]

@xjasminelu @jooyoungparc @nadiacw Congrats and well deserved!! Rockstar!

[Jonathan Sebat @sebatlab]

All Elon is doing is torching the infrastructure that makes america the world leader in biomedial research. And he's not doing the economy any favors either, the negative effects of this are going to reverberate through biotech, pharma and the rest of the economy 5/N

[Josiah Hester @ProfJosiah]

@AlexKale17 Thank you Alex!

[Josiah Hester @ProfJosiah]

I love how the two GT PECASE awardees are all about solar energy! @jpcorreabaena 🌞

[Georgia Tech Computing @gtcomputing]

Batteries? We don’t need no stinkin’ batteries. At @GeorgiaTech, researchers are working on smart devices that take power from their environment.

Assoc. Professor Josiah Hester (@ProfJosiah), faculty in @ICatGT, has received the Presidential Early Career Award for Scientists and Engineers (PECASE) for his work on these battery-free embedded systems.

The applications are fascinating: self-powered sensors to monitor crops, or wildlife, or power grids. Wearable medical sensor networks powered by the patient’s own body. Simply reducing the number of batteries we use and discard would be an environmental boon.

News 🔗: https://t.co/5I4nMBZcna

#togetherwecompute #gtcomputing #gatech #ProgressandService

[Josiah Hester @ProfJosiah]

@jpcorreabaena @BaenaLab @GeorgiaTech Wooooo 👏👊🤩 !

[Georgia Tech School of Interactive Computing @ICatGT]

We are ecstatic to announce that our own @ProfJosiah was named to this year's list of PECASE winners by @POTUS! This is the nation's highest honor given to early career scientists and researchers! @gtcomputing @GeorgiaTech @GTResearchNews

https://t.co/Fz7ubFt6wP

[Josiah Hester @ProfJosiah]

So this happened 🤯

Honored/floored to receive a Presidential Early Career Award for Scientists and Engineers (PECASE)!

https://t.co/EbyWMxUomk

[Juan-Pablo Correa-Baena @jpcorreabaena]

Very honored to be selected for this award. I could not have made it without my group @BaenaLab and my colleagues @GeorgiaTech !

🥳

[Josiah Hester @ProfJosiah]

Thrilled that our soil-powered sensors won the Energy category at Prototypes for Humanity 2024! Honored to receive the award from @LatifaMRM among 2700+ submissions and 100 finalists. #prototypesforhumanity #dubaifuture
https://t.co/lT5gC6zroO