Tootfinder

Polish engineer Piotr Ostapowicz has created what may be the world's smallest 8-bit Atari computer recreation, the "Atarino". The entire system—processor, graphics chips, sound hardware, and memory controllers—fits on a module measuring just 2×1.5 centimeters (about 0.79×0.59 inches), roughly the size of a postage stamp:

Polish engineer creates postage stamp-sized 1980s Atari computer
Hobby project shrinks 1980s computer platform that pierced the Iron Curtain.

Designing an Adaptive Storytelling Platform to Promote Civic Education in Politically Polarized Learning Environments
Christopher M. Wegemer, Edward Halim, Jeff Burke
https://arxiv.org/abs/2507.00161

Designing an Adaptive Storytelling Platform to Promote Civic Education in Politically Polarized Learning Environments
Political polarization undermines democratic civic education by exacerbating identity-based resistance to opposing viewpoints. Emerging AI technologies offer new opportunities to advance interventions that reduce polarization and promote political open-mindedness. We examined novel design strategies that leverage adaptive and emotionally-responsive civic narratives that may sustain students' emotional engagement in stories, and in turn, promote perspective-taking toward members of political out…

An Advanced Cyber-Physical System Security Testbed for Substation Automation
Akila Herath, Chen-Ching Liu, Junho Hong, Mansi Girdhar
https://arxiv.org/abs/2505.24021

An Advanced Cyber-Physical System Security Testbed for Substation Automation
A Cyber-Physical System (CPS) testbed serves as a powerful platform for testing and validating cyber intrusion detection and mitigation strategies in substations. This study presents the design and development of a CPS testbed that can effectively assess the real-time dynamics of a substation. Cyber attacks exploiting IEC 61850-based SV and GOOSE protocols are demonstrated using the testbed, along with an analysis on attack detection. Realistic timing measurements are obtained, and the time fra…

Teaching Cars to Drive: Spotlight on Connected and Automated Vehicles
Filippos N. Tzortzoglou, Andreas A. Malikopoulos
https://arxiv.org/abs/2507.01211 htt…

Teaching Cars to Drive: Spotlight on Connected and Automated Vehicles
In recent decades, society has witnessed significant advancements in emerging mobility systems. These systems refer to transportation solutions that incorporate digital technologies, automation, connectivity, and sustainability to create safer, more efficient, and user-centered mobility. Examples include connected and automated vehicles (CAVs), shared mobility services (car-pooling), electric vehicles, and mobility-as-a-service platforms. These innovations have the potential to greatly impact a…

LLM-Mesh: Enabling Elastic Sharing for Serverless LLM Inference
Chuhao Xu, Zijun Li, Quan Chen, Han Zhao, Minyi Guo
https://arxiv.org/abs/2507.00507 https:…

LLM-Mesh: Enabling Elastic Sharing for Serverless LLM Inference
The rise of LLMs has driven demand for private serverless deployments, characterized by moderate-scale models and infrequent requests. While existing solutions follow exclusive GPU deployment, we take a step back to explore modern platforms and find that: Emerging CPU architectures with built-in accelerators are capable of serving LLMs but remain underutilized, and both CPUs and GPUs can accommodate multiple LLMs simultaneously. We propose LLM-Mesh, a serverless inference scheme for small-to-…

We had the pleasure of presenting at FIRST.org 2025, showcasing the Vulnerability-Lookup and GCVE.eu initiatives.
Slides are now available.
#cybersecurity #vulnerability #cve

Integrated bright source of polarization-entangled photons using lithium niobate photonic chips
Changhyun Kim, Hansol Kim, Minho Choi, Junhyung Lee, Yongchan Park, Sunghyun Moon, Jinil Lee, Hyeon Hwang, Min-Kyo Seo, Yoon-Ho Kim, Yong-Su Kim, Hojoong Jung, Hyounghan Kwon
https://arxiv.org/abs/2506.23625

Integrated bright source of polarization-entangled photons using lithium niobate photonic chips
Quantum photonics has rapidly advanced as a key area for developing quantum technologies by harnessing photons' inherent quantum characteristics, particularly entanglement. Generation of entangled photon pairs, known as Bell states, is crucial for quantum communications, precision sensing, and quantum computing. While bulk quantum optical setups have provided foundational progress, integrated quantum photonic platforms now offer superior scalability, efficiency, and integrative potential. In th…

Anatomy of High-Performance Column-Pivoted QR Decomposition
Maksim Melnichenko, Riley Murray, William Killian, James Demmel, Michael W. Mahoney, Piotr Luszczek, Mark Gates
https://arxiv.org/abs/2507.00976

Anatomy of High-Performance Column-Pivoted QR Decomposition
We introduce an algorithmic framework for performing QR factorization with column pivoting (QRCP) on general matrices. The framework enables the design of practical QRCP algorithms through user-controlled choices for the core subroutines. We provide a comprehensive overview of how to navigate these choices on modern hardware platforms, offering detailed descriptions of alternative methods for both CPUs and GPUs. The practical QRCP algorithms developed within this framework are implemented as pa…

Our partners at the NOAA Great Lakes Environmental Research Laboratory have found cyanobacteria microcystin toxins in the western basin of Lake Erie April 28, far earlier this year than ever before. The season starts earlier and lasts longer due to #ClimateChange.

Docuseries on Cowboys' Jerry Jones gets August premiere date from Netflix https://cowboyswire.usatoday.com/story/sports/nfl/cowboys/2025/06/11/netflix-jerry-jones-docuseries-august-premiere/84151875007/…