Tootfinder

Amsterdam – Mesdagstraat
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Fiona Ross: Voices Unheard
#MustListen #MustSee
https://www.youtube.com/watch?v=Zr9mTaxuob

(Bicycle) Speed and safety
For years I've heard people talking about how motor-assisted bicycles "are safer" because they can "match traffic speed", but I think this is mistaken.  Here's three reasons why. For me the most compelling reason comes from a 2007 paper by Laurie F. Beck, Ann M. Dellinger, and Mary E. O’Neil in the American Journal of Epidemiology, "Motor Vehicle Crash Injury Rates by Mode of Travel, United States: Using Exposure-Based Methods…

(Bicycle) Speed and safety
For years I’ve heard people talking about how motor-assisted bicycles “are safer” because they can “match traffic speed”, but I think this is mistaken.  Here’s t…

This https://arxiv.org/abs/2504.06151 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csOS_…

Zerrow: True Zero-Copy Arrow Pipelines in Bauplan
Bauplan is a FaaS-based lakehouse specifically built for data pipelines: its execution engine uses Apache Arrow for data passing between the nodes in the DAG. While Arrow is known as the "zero copy format", in practice, limited Linux kernel support for shared memory makes it difficult to avoid copying entirely. In this work, we introduce several new techniques to eliminate nearly all copying from pipelines: in particular, we implement a new kernel module that performs de-anonymization, thus eli…

This https://arxiv.org/abs/2503.22694 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

On the Marinus--Ptolemy and Delisle--Euler conical maps
We examine connections between the mathematics behind methods of drawing geographical maps due, on the one hand to Marinos and Ptolemy (1st-2nd c. CE) and on the other hand to Delisle and Euler (18th century). A recent work by the first two authors of this article shows that methods of Delisle and Euler for drawing geographical maps, which are improvements of methods of Marinus and Ptolemy, are best among a collection of geographical maps we term ``conical''. This is an instance where after pra…

Puppy dog eyes, Burt Reynolds mustache

I had a bad day and made a mistake, but I chose to do the right thing and move forward.
Proud bisexual, gender-fluid, autistic anarchist committed to building a world based on mutual aid, solidarity, and freedom for all.
If you believe in challenging power and creating change from the ground up, let’s connect and let’s grow this movement together.
Now, here I am, feeling stronger and ready for better days ahead.

[2025-05-15 Thu (UTC), no new articles found for q-fin.TR Trading and Market Microstructure]
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This https://arxiv.org/abs/2505.06780 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csOS_…

Work-in-Progress: Multi-Deadline DAG Scheduling Model for Autonomous Driving Systems
Autoware is an autonomous driving system implemented on Robot Operation System (ROS) 2, where an end-to-end timing guarantee is crucial to ensure safety. However, existing ROS 2 cause-effect chain models for analyzing end-to-end latency struggle to accurately represent the complexities of Autoware, particularly regarding sync callbacks, queue consumption patterns, and feedback loops. To address these problems, we propose a new scheduling model that decomposes the end-to-end timing constraints o…

[2025-05-14 Wed (UTC), no new articles found for q-fin.TR Trading and Market Microstructure]
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