Tootfinder

"By attaching the new product to a popular speculation, especially one with built-in dramatic tension, the founders can elevate a buggy, unproven, or partially conceived technology into the cultural firmament, even if only briefly. It’s a cheat code, a way of getting us to relate to a future that’s already been culturally prototyped, and it can be quite successful."
(Original title: For tech CEOs, the dystopia is the point)

For tech CEOs, the dystopia is the point
We mock Musk, Altman and Zuck for using bleak sci-fi references to market products — but these 'useful dystopias' might just be the point

Negative pressure as a quantum effect in free-streaming in the cosmological background
F. Becattini (University of Florence,INFN), D. Roselli (University of Florence,INFN)
https://arxiv.org/abs/2403.08661

Negative pressure as a quantum effect in free-streaming in the cosmological background
We present a study of energy density and pressure of a free real scalar quantum field after its decoupling from a thermal bath in the spatially flat Friedman-Lemaitre-Robertson-Walker space-time by solving the Klein-Gordon equation both analytically and numerically for different predetermined scale factor functions $a(t)$. The energy density and pressure, defined by subtracting the vacuum expectation values at the decoupling time, feature corrections with respect to the classical free-streaming…

This https://arxiv.org/abs/2310.05880 has been replaced.
link: https://scholar.google.com/scholar?q=a

The Hitchin Image in Type-D
Motivated by their appearance as Coulomb branch geometries of Class S theories, we study the image of the local Hitchin map in tame Hitchin systems of type-D with residue in a special nilpotent orbit $\mathcal{O}_H$. We describe two important features which distinguish it from the type A case studied in arXiv:2008.01020. The first feature, which we term even type constraints, arise iff the partition label $[\mathcal{O}_H]$ has even parts. In this case, our Hitchin image is non-singular and thus…

This https://arxiv.org/abs/2304.00848 has been replaced.
link: https://scholar.google.com/scholar?q=a

Towards Goal-Oriented Semantic Communications: New Metrics, Open Challenges, and Future Research Directions
Since Shannon's pioneering masterpiece which established the prototype of modern information theory, the goal of communications has long been promising accurate message reconstruction at a refined bit-by-bit level, which deliberately neglects the semantics/effectiveness aspect of information. Nevertheless, the recent development of wireless technologies and the spurt of deep learning (DL) techniques allow us to reclaim the meaning/usefulness aspect in the design of future 6G communication parad…

An interview with Andrew Bosworth on the 10th anniversary of Reality Labs, the past and future of VR/AR/AI, Meta's next AR glasses prototype, and more (Scott Stein/CNET)
https://www.cnet.com/tech/computing/ten-years-aft…

10 Years After Facebook Bought Oculus, What's Next for Meta's VR Plans?
Meta CTO Andrew Bosworth talks with CNET about the past and future of VR, AR and AI.

This https://arxiv.org/abs/2310.00206 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csRO_…

An Investigation of Multi-feature Extraction and Super-resolution with Fast Microphone Arrays
In this work, we use MEMS microphones as vibration sensors to simultaneously classify texture and estimate contact position and velocity. Vibration sensors are an important facet of both human and robotic tactile sensing, providing fast detection of contact and onset of slip. Microphones are an attractive option for implementing vibration sensing as they offer a fast response and can be sampled quickly, are affordable, and occupy a very small footprint. Our prototype sensor uses only a sparse a…

This https://arxiv.org/abs/2310.09489 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepe…

Study of residual artificial neural network for particle identification in the CEPC high-granularity calorimeter prototype
Particle Identification (PID) plays a central role in associating the energy depositions in calorimeter cells with the type of primary particle in a particle flow oriented detector system. In this paper, we propose novel PID methods based on the Residual Network (ResNet) architecture which enable the training of very deep networks, bypass the need to reconstruct feature variables, and ensure the generalization ability among various geometries of detectors, to classify electromagnetic showers an…

Cybersecurity student helps friend who got locked out of his laptop while updating Windows Hello's facial recognition. They used USB tools but failed to detect the OS partition with MediCat. Successful use of Kali Linux live image and the chntpw command unlocked laptop account. This "real world" hacking experience outside a controlled environment was motivational for the student, aspiring to work in Penetration Testing/Red Team roles in future. https://reddit.com/r/cybersecurity/comments/1b8n5dj/

Zero-one Laws for a Control Problem with Random Action Sets
J\'anos Flesch, Arkadi Predtetchinski, William D Sudderth, Xavier Venel
https://arxiv.org/abs/2404.07012

Zero-one Laws for a Control Problem with Random Action Sets
In many control problems there is only limited information about the actions that will be available at future stages. We introduce a framework where the Controller chooses actions $a_{0}, a_{1}, \ldots$, one at a time. Her goal is to maximize the probability that the infinite sequence $(a_{0}, a_{1}, \ldots)$ is an element of a given subset $G$ of $\mathbb{N}^{\mathbb{N}}$. The set $G$, called the goal, is assumed to be a Borel tail set. The Controller's choices are restricted: having taken a s…