Tootfinder

Ok one of the annoying things about Mastodon - I thought I was already following @… and then I saw someone repost one of his posts, and I clicked on his name, and I see “pending request”
So I cancel it, hit follow again and I’m following him now.
I usually don’t don’t try to follow someone a second time, because I don’t want to be pestering them…

Primer to get you started with Optimization and Mathematical Programming in R #rstats

This https://arxiv.org/abs/2312.02351 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

No U(1) 'electric-magnetic' duality in Einstein gravity
We revisit the question of whether classical general relativity obeys, beyond the linearised order, an analogue of the global U(1) electric-magnetic duality of Maxwell theory, with the Riemann tensor playing the role analogous to the field strength. Following contradictory claims in the literature, we present a simple gauge-invariant argument that the duality does not hold. The duality condition is the conservation of the helicity charge. Scattering amplitudes of gravitons in general relativity…

This https://arxiv.org/abs/2310.07649 has been replaced.
link: https://scholar.google.com/scholar?q=a

Automated Layout Design and Control of Robust Cooperative Grasped-Load Aerial Transportation Systems
We present a novel approach to cooperative aerial transportation through a team of drones, using optimal control theory and a hierarchical control strategy. We assume the drones are connected to the payload through rigid attachments, essentially transforming the whole system into a larger flying object with "thrust modules" at the attachment locations of the drones. We investigate the optimal arrangement of the thrust modules around the payload, so that the resulting system is robust to disturb…

#Generative AI Conversations using #LangChain4j ChatMemory
https://www.sivalabs.…

#Movies
Via Tom Reagan’s Hat @RufusTSuperfly
·
37m
Bob Hoskins on losing Al Capone in The Untouchables to DeNiro:
‘I got a $200,000 cheque in the post & a note: ‘Thanks for your time, love Brian DePalma’.
I rang him & said
‘Brian, listen, you got any other films you don’t want me to be in, babe, I’m there for you!’

Noise-BERT: A Unified Perturbation-Robust Framework with Noise Alignment Pre-training for Noisy Slot Filling Task
Jinxu Zhao, Guanting Dong, Yueyan Qiu, Tingfeng Hui, Xiaoshuai Song, Daichi Guo, Weiran Xu
https://arxiv.org/abs/2402.14494

Noise-BERT: A Unified Perturbation-Robust Framework with Noise Alignment Pre-training for Noisy Slot Filling Task
In a realistic dialogue system, the input information from users is often subject to various types of input perturbations, which affects the slot-filling task. Although rule-based data augmentation methods have achieved satisfactory results, they fail to exhibit the desired generalization when faced with unknown noise disturbances. In this study, we address the challenges posed by input perturbations in slot filling by proposing Noise-BERT, a unified Perturbation-Robust Framework with Noise Ali…

Recently I've added a cheap hack to the standard #Gentoo invocation for #PyTest to throw errors if unhandled async functions are detected. The goal was to increase our chances of finding packages with missing dependency on dev-python/pytest-asyncio (or another equivalent plugin), or packages disabling plugin autoloading and failing to load such a plugin.
Today, I've gotten a first bug report, regarding dev-python/ipython. I've grepped the sources and confirmed that the package depends on PyTest-AsyncIO, except that it pins to < 0.22. Well, we don't have one that old but let's hope it works anyway. So I've tried adding the dep, `-p asyncio`… and PyTest still apparently couldn't find the plugin. I've scratched my head and tried `PYTEST_PLUGINS` instead — still the same result. What the…?
So I've checked the git repository out, tried with older PyTest-AsyncIO, and indeed the tests worked. Tried with the newest, 0.23.6, and the same issue occurred. I've checked the git history and discovered that the version pin was added because of a buggy 0.22.0 release. However, the issue has been fixed since, the release was yanked and my problem was nothing like that.
So I've investigated more. For some reason, #IPython test suite does not mark tests with `pytest.mark.asyncio` marker directly. Instead, it globally iterates over all test functions, and implicitly adds the marker to all coroutines. This used to work with older versions, but does not work anymore — the test is correctly marked, but for some reason it stops being recognized as a coroutine. So I've made a minimal reproducer and filed a bug.
The key point here is: the (potential) bug went unnoticed for a while now, because of the premature, then obsolete pin in IPython.
#Python

#Movies
Via Tom Reagan’s Hat @RufusTSuperfly
·
37m
Bob Hoskins on losing Al Capone in The Untouchables to DeNiro:
‘I got a $200,000 cheque in the post & a note: ‘Thanks for your time, love Brian DePalma’.
I rang him & said
‘Brian, listen, you got any other films you don’t want me to be in, babe, I’m there for you!’

This https://arxiv.org/abs/2401.09332 has been replaced.
link: https://scholar.google.com/scholar?q=a

Synergistic Reinforcement and Imitation Learning for Vision-driven Autonomous Flight of UAV Along River
Vision-driven autonomous flight and obstacle avoidance of Unmanned Aerial Vehicles (UAVs) along complex riverine environments for tasks like rescue and surveillance requires a robust control policy, which is yet difficult to obtain due to the shortage of trainable riverine environment simulators. To easily verify the vision-based navigation controller performance for the river following task before real-world deployment, we developed a trainable photo-realistic dynamics-free riverine simulation…