Tootfinder

oooh! seem like there's a new, promising neural-net-like architecture: #KAN (Kolmogorov-Arnold Networks).
and they are actually pretty easy to understand, too 👀!
instead of fixed nonlinearities on the nodes and learnable linear weights, edges are are learnable nonlinearities (using splines) and the nodes simply add.
well i'm not exactly sure how the training works yet, but i g…

KAN: Kolmogorov-Arnold Networks
Inspired by the Kolmogorov-Arnold representation theorem, we propose Kolmogorov-Arnold Networks (KANs) as promising alternatives to Multi-Layer Perceptrons (MLPs). While MLPs have fixed activation functions on nodes ("neurons"), KANs have learnable activation functions on edges ("weights"). KANs have no linear weights at all -- every weight parameter is replaced by a univariate function parametrized as a spline. We show that this seemingly simple change makes KANs outperform MLPs in terms of ac…

if you set two dozen people on solving the environmental problems we face,
and they each focused on different things,
would their different solutions be harmonious? like a "yes, and"?
e.g. are all straightforward, cost effective, solutions we can do now... non-conflicting?
like swapping to alternatives for milk / not shipping water around,
or meat, or air travel,
swapping to EVs for rural america and improving trains to replace highways/flying, a cleaner grid but also the battery recycling,
swapping to nuclear, wind, and solar, dealing with recycling all of them in stride
supply chain plastics, single use plastics,
not using massive AI datacenters to do that stuff
changes in lobbying, taxes, subsidies, regulations,
if you had 24 people - would their ideas be synergistic? #ClimateChange #GreenEnergy

Y’know. I really LIKE Safari.
But here’s the thing: I LOVE having alternatives. There was a point where I was running like 7 different browsers and my fave was “OmniWeb”.
I want there to be good alternatives this constant Tech Decay (“enshittification”) of all the browsers out there. JFC. Just make a browser that works and protects people’s privacy. That seems like it would give you plenty to do already.

This https://arxiv.org/abs/2309.02862 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csGT_…

TSO Games -- On the decidability of safety games under the total store order semantics (extended LMCS version with appendix)
We consider an extension of the classical Total Store Order (TSO) semantics by expanding it to turn-based 2-player safety games. During her turn, a player can select any of the communicating processes and perform its next transition. We consider different formulations of the safety game problem depending on whether one player or both of them transfer messages from the process buffers to the shared memory. We give the complete decidability picture for all the possible alternatives.

What are some good (simple!) options for automagically posting RSS stuff on the Fediverse?
This works with Mastodon well enough, but I'd love a list of alternatives.
➡️ https://github.com/aserper/masto-rss

GitHub - aserper/masto-rss: A Mastodon bot that posts RSS updates to a Mastodon account
A Mastodon bot that posts RSS updates to a Mastodon account - aserper/masto-rss

Excerpts from an analysis of the California Journalism Preservation Act, which has yet to pass the state Senate, including its many weaknesses and alternatives (Jeff Jarvis/Nieman Lab)
https://www.niemanlab.org…

The California Journalism Preservation Act would do more harm than good. Here’s how the state might better help news
"If there are resources to be put to work, we must ask where those resources should come from, who should receive them, and on what basis they should be distributed."

Sub-100-fs formation of dark excitons in monolayer WS$_2$
Pavel V. Kolesnichenko, Lukas Wittenbecher, Qianhui Zhang, Run Yan Teh, Chandni Babu, Michael S. Fuhrer, Anders Mikkelsen, Donatas Zigmantas
https://arxiv.org/abs/2403.08390

Sub-100-fs formation of dark excitons in monolayer WS$_2$
Two-dimensional semiconductors based on transition metal dichalcogenides are promising for electronics and optoelectronics applications owing to their properties governed by strongly-bound bright and dark excitons. Momentum-forbidden dark excitons have recently received attention as better alternatives to bright excitons for long-range transport. However, accessing the dynamics of dark excitons is challenging experimentally. The most direct, but very complicated, experiment is transient angle-r…

My Aunt Lanie has left this world. I don’t pretend to know where she’s gone, but I hope she’s on a wonderful new adventure. She was one of the good ones. https://www.funeralok.com/obituary/KARON-H…

Obituary for KARON ELAINE (ABBOTT) HARRISON | Alternatives Cremation and Funeral Service
KARON ELAINE (ABBOTT) HARRISON death notice and obituary, Monday March 4, 2024. Alternatives Cremation and Funeral Service OKLAHOMA CITY, OK 73139

This https://arxiv.org/abs/2403.05246 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_ees…

LightM-UNet: Mamba Assists in Lightweight UNet for Medical Image Segmentation
UNet and its variants have been widely used in medical image segmentation. However, these models, especially those based on Transformer architectures, pose challenges due to their large number of parameters and computational loads, making them unsuitable for mobile health applications. Recently, State Space Models (SSMs), exemplified by Mamba, have emerged as competitive alternatives to CNN and Transformer architectures. Building upon this, we employ Mamba as a lightweight substitute for CNN an…

I’ve been discouraged lately to see attacks on DEI work on social media and even by certain governments. It’s based on a fundamental lack of understanding of why the work is important. The naysayers claim that DEI results in the best candidates being overlooked in favour of underqualified alternatives.
(A short thread about hiring, from a guy who did a lot of it in my corporate years)
1/n
#DEI

"The findings show that mainstream parties have raised the issues of the far right and brought them from the fringes into the mainstream debate. Instead of drawing attention to far-right actors and issues, mainstream parties could use their public visibility to highlight the issues and ideas they represent and offer political alternatives."

The Drivers of Far-Right Mainstreaming in Public Debates
The far right is gaining power in many liberal democracies. Far-right actors threaten democracy by spreading their nativist, exclusionary and authoritarian ideas through various means (Mudde 2019). They are protesting on the streets, mobilising support on social media, getting elected to parliaments and participating in governments. In Europe, far-right parties have increased their share of the vote in recent years and are currently in government in Italy, Hungary, Finland and Switzerland (Rood…

Adaptive Strategy of Testing Alphas in High Dimensional Linear Factor Pricing Models
Chenxi Zhao, Ping Zhao, Long Feng, Zhaojun Wang
https://arxiv.org/abs/2404.06984

Adaptive Strategy of Testing Alphas in High Dimensional Linear Factor Pricing Models
In recent years, there has been considerable research on testing alphas in high-dimensional linear factor pricing models. In our study, we introduce a novel max-type test procedure that performs well under sparse alternatives. Furthermore, we demonstrate that this new max-type test procedure is asymptotically independent from the sum-type test procedure proposed by Pesaran and Yamagata (2017). Building on this, we propose a Fisher combination test procedure that exhibits good performance for bo…

Man, I wish I had an unethical patent lawyer ~30 years ago…
I’ve been using discrete public identities in email to thwart various #InfoSec risks since the first month of running my own mail server. If I had realized how many mail systems would eventually pick up the idea, I could have been rich...
It's not even about hiding a “real" email address. It's more about eliminati…

Non-Invertible Symmetries, Anomalies and Scattering Amplitudes
Christian Copetti, Lucia Cordova, Shota Komatsu
https://arxiv.org/abs/2403.04835 https://

Non-Invertible Symmetries, Anomalies and Scattering Amplitudes
We show that crossing symmetry of S-matrices is modified in certain theories with non-invertible symmetries or anomalies. Focusing on integrable flows to gapped phases in two dimensions, we find that S-matrices derived previously from the bootstrap approach are incompatible with non-invertible symmetries along the flow. We present consistent alternatives, which however violate standard crossing symmetry and obey modified rules dictated by fusion categories. We extend these rules to theories wit…

I feel like crap thanks to a (probable) cold complicated by being 50-going-on--90 year old, and the only thing I can think of is drinking sweet wine. A Sauternes would be splendid but I'm open to alternatives.
Unfortunately it's 15:30 which isn't sweet wine time unless you're a countess dowager and unfortunately I don't qualify.

Et d'un autre côté on nous explique qu'il n'y a pas de salut en dehors d'une concurrence libre et non faussée.
.
.
.
[Actu] - J* de Paris 2024 : #Visa sera la seule carte bancaire autorisée comme moyen de paiement.
La directrice générale de Visa a annoncé que seules les cartes Visa ou le cash seront acceptés pour payer sur le site des épreuves. Des solution…

JO de Paris 2024 : Visa sera la seule carte bancaire autorisée comme moyen de paiement | Actu
La directrice générale de Visa a annoncé que seules les cartes Visa ou le cash seront acceptés pour payer sur le site des épreuves. Des solutions alternatives seront proposées.

Entering the #fediverse
"…some of the alternatives that people went to after the collapse of Twitter are these newer models where you're not investing into a #platform as such, you're investing into a handle that you can kind of take with you.
So if you spend time cultivating, say,…

Social media is more 'chaotic' and 'fragmented' than ever, so what's the future of how we live online?
If you've lived online long enough for Facebook to start dredging up embarrassing status updates from a decade ago, chances are you've picked up on a distinct vibe shift in our virtual world.

SELF-[IN]CORRECT: LLMs Struggle with Refining Self-Generated Responses
Dongwei Jiang, Jingyu Zhang, Orion Weller, Nathaniel Weir, Benjamin Van Durme, Daniel Khashabi
https://arxiv.org/abs/2404.04298

SELF-[IN]CORRECT: LLMs Struggle with Refining Self-Generated Responses
Can LLMs continually improve their previous outputs for better results? An affirmative answer would require LLMs to be better at discriminating among previously-generated alternatives, than generating initial responses. We explore the validity of this hypothesis in practice. We first introduce a unified framework that allows us to compare the generative and discriminative capability of any model on any task. Then, in our resulting experimental analysis of several LLMs, we do not observe the per…

This https://arxiv.org/abs/2402.16309 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_eco…

Collective Evaluation Problem
This study focuses on situations where a finite set of alternatives is evaluated by collecting evaluations from several individuals, some of whom may not evaluate specific alternatives. The collection of subsets of alternatives that individuals (can) evaluate is referred to as an evaluability profile. For a given evaluability profile, we define a collective evaluation function whose inputs are the evaluation orders of individuals on the subsets of alternatives that they evaluate. We investigate…

Is there any TLD registry (not registrar) and accompanying domain name extension (.com, .net and so on) out there that’s owned by a small/independent, i.e. trustworthy business? Feels like they’re all owned by some creepy mega-corp.
.blog owned by Automattic is a decent example, though they’re not exactly very indie anymore, and have come under strong scrutiny of late. I wonder if there are even better alternatives.
UPDATE: .tel is a pretty interesting one.

Well, I tried Nostr, as recommended by some folks over there who said it wasn't as bad as it looked.
Well, I'm here to tell you, it's worse than it looked.🤣
Some people think Fedi is too "tech bro"?!? Go there, realize your "username" is a 32 character long random string. Then, realize the only alternatives are to use a "free" one that you don't get to choose or deal with domains and server files....🤣🤣🤣🤣🤣🤣
Dead on arrival. I tried. Not worth my time.
I am BeAware, not hyrulesquirrel45 or npub4928447372584863
#Nostr #SocialMedia #ConfusingAsFuck

I'm torturing myself by listening to Pierre Poillievre on CP24. After his "axe the tax" rhyming policy BS, he goes on to say within the first 90seconds that he would “lower the cost of low emitting alternatives" (note he doesn't say renewables) and then proceeds to list: Nuclear (extremely expensive), Hydro Power (extremely expensive, almost gone), Tidal Wave power (currently mostly non-existant), Carbon Capture and Storage (greenwashing nonsense) in that order, and n…

"For people in the business of opposing vaccination or unwelcome election results, mistrust of big financial institutions and tech companies is common. Increasingly, they can find alternatives being built by a community with a head start in developing the tools of the so-called freedom economy: the far right."
Anti-vaccine activists and the far right team up on parallel economy : NPR

So, since KDE is planning to abandon X11 one day² and Wayland feels sluggish on my 2013 laptop, I've been looking for alternatives which fully embrace X11.
And now I'm really REALLY itching to try out Xfce4 with that Windows XP total conversion pack¹.
That, or I just wait for the Wayland implementation of Plasma/KWin to get optimised. They are working on it, apparently.
¹

This https://arxiv.org/abs/1908.00379 has been replaced.
link: https://scholar.google.com/scholar?q=a

Outstanding: A Multi-Perspective Travel Approach for Virtual Reality Games
In virtual reality games, players dive into fictional environments and can experience a compelling and immersive world. State-of-the-art VR systems allow for natural and intuitive navigation through physical walking. However, the tracking space is still limited, and viable alternatives are required to reach further virtual destinations. Our work focuses on the exploration of vast open worlds - an area where existing local navigation approaches such as the arc-based teleport are not ideally suit…

“Meta is now automatically muting all posts that mention PixelFed, so its users can’t read about any alternatives to its services.”
https://mastodon.ar.al/@queue@todon.eu/112130436367389679
But I’m confused… Mastodon gGmbH and Meta Platforms, Inc. are be…

How Mastodon made friends with Meta
Founder Eugen Rochko on helping Threads federate, dodging venture capital, and why he hopes Bluesky abandons its protocol

This https://arxiv.org/abs/2303.00680 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

On uniformly consistent tests
Necessary and sufficient conditions of uniform consistency are explored. A hypothesis is simple. Nonparametric sets of alternatives are bounded convex sets in $\mathbb{L}_p$, $p >1$ with "small" balls deleted. The "small" balls have the center at the point of hypothesis and radii of balls tend to zero as sample size increases. For problem of hypothesis testing on a density, we show that, for the sets of alternatives, there are uniformly consistent tests for some sequence of radii of the balls, …

Women are getting off birth control amid misinformation explosion
Search for birth control on TikTok or Instagram and a cascade of misleading videos vilifying hormonal contraception appear:
Young women blaming their weight gain on the pill.
Right-wing commentators claiming that some birth control can lead to infertility.
Testimonials complaining of depression and anxiety.

Instead, many social media influencers recommend “natural” alternatives, such as timing se…

Women are getting off birth control amid misinformation explosion
Misinformation about birth control has exploded because of algorithms that feed young women a stream of videos reinforcing messages divorced from scientific evidence.

LightM-UNet: Mamba Assists in Lightweight UNet for Medical Image Segmentation
Weibin Liao, Yinghao Zhu, Xinyuan Wang, Cehngwei Pan, Yasha Wang, Liantao Ma
https://arxiv.org/abs/2403.05246

LightM-UNet: Mamba Assists in Lightweight UNet for Medical Image Segmentation
UNet and its variants have been widely used in medical image segmentation. However, these models, especially those based on Transformer architectures, pose challenges due to their large number of parameters and computational loads, making them unsuitable for mobile health applications. Recently, State Space Models (SSMs), exemplified by Mamba, have emerged as competitive alternatives to CNN and Transformer architectures. Building upon this, we employ Mamba as a lightweight substitute for CNN an…

"Plant-based records take the PVC out of vinyl"
#Music #Vinyl
https://newatlas.…

Startup spins out plant-based alternative to PVC in vinyl records
Though streaming accounts for most of our music consumption, sales of vinyl records have been on the rise for a few years now. But the plastic used to create them is bad news for the enviro-conscious listener. A UK startup is hoping to change that by pressing for plant-based alternatives.

I have gone over my #WordPress installations and made some adjustments which makes them less dependent on, and connected to, the dotcom.
I was just getting excited about WordPress again because of the #ActivityPub support but now I am thinking about alternatives for at least some o…

Although NASA is unlikely to speak about it publicly any time soon, the space agency is privately considering modifications to its #Artemis plan to land astronauts on the surface of the Moon later this decade: https://arstechnica.com/space/2024/04/nasa-may-alter-artemis-iii-to-have-starship-and-orion-dock-in-low-earth-orbit/ - multiple sources have confirmed that NASA is studying alternatives to the planned Artemis III landing of two astronauts on the Moon, nominally scheduled for September 2026, due to concerns about hardware readiness and mission complexity.

I'm still wondering what would be the best approach towards unique #eMail addresses with my domain.
For a long time, I've been using the " " approach with #GMail but that sucks because:
• A fair number of sites reject e-mail addresses containing a " ", and at this point it's no longer a matter of copy-pasting poor snippets, but people explicitly blocking cheap unique addresses.
• It's quite obvious, and so people can easily take the "base" address out of it.
I'm considering three alternatives:
1. The catch-all, or opt-out approach — just grab mail from all possible addresses. Easy to set up, and lets me dynamically get unique addresses with no effort. On the minus side, it's going to get lots of #spam, and I'll end up having to block a lot of commonly used usernames.
2. Prefixed catch-all — grab mail from all possible addresses starting with a specific prefix. Somewhat similar to the " " approach, except without special characters and less obvious. Would combine being able to quickly make new addresses up, while filtering out most of the generic spam. On the minus side, I don't think most of the mail providers would actually support something like that.
3. Explicit addresses, or opt-in approach — create aliases explicitly whenever I need one. Lots of work, but probably the cleanest solution. I'd probably also have to have a handful of "free" aliases on me, in case I needed to quickly give someone a unique e-mail address.

Hot.
For more on this, see #PHP #enum

This https://arxiv.org/abs/2001.08031 has been replaced.
link: https://scholar.google.com/scholar?q=a

United for Change: Deliberative Coalition Formation to Change the Status Quo
We study a setting in which a community wishes to identify a strongly supported proposal from a space of alternatives, in order to change the status quo. We describe a deliberation process in which agents dynamically form coalitions around proposals that they prefer over the status quo. We formulate conditions on the space of proposals and on the ways in which coalitions are formed that guarantee deliberation to succeed, that is, to terminate by identifying a proposal with the largest possible …

Adaptive Unit Root Inference in Autoregressions using the Lasso Solution Path
Martin C. Arnold, Thilo Reinschl\"ussel
https://arxiv.org/abs/2404.06205

Adaptive Unit Root Inference in Autoregressions using the Lasso Solution Path
We show that the activation knot of a potentially non-stationary regressor on the adaptive Lasso solution path in autoregressions can be leveraged for selection-free inference about a unit root. The resulting test has asymptotic power against local alternatives in $1/T$ neighbourhoods, unlike post-selection inference methods based on consistent model selection. Exploiting the information enrichment principle devised by Reinschlüssel and Arnold arXiv:2402.16580 [stat.ME] to improve the Lasso-ba…

Is there any TLD registry (not registrar) and accompanying domain name extension (.com, .net and so on) out there that’s owned by a small/independent, i.e. trustworthy business? Feels like they’re all owned by some creepy mega-corp.
.blog owned by Automattic is a decent example, though they’re not exactly very indie anymore, and have come under strong scrutiny of late. I wonder if there are even better alternatives.
UPDATE: .tel is a pretty interesting one.

🚁 Are Marines relying more on the CH-53E helicopters while their Ospreys are grounded?
#military

Are Marines relying more on the CH-53E helicopters while their Ospreys are grounded?
The Marines have few alternatives to their grounded Ospreys. The CH-53E is one of three vertical lift aircraft organic to marine aviation.

Installed #postmarketOS on qemu to start trying it out :3
Phosh rn, but I also want to test kde mobile and gnome mobile
I’ll also start trying out alternatives for the apps I use, as well as waydroid for apps I use that have no alternatives but an android version

Hi Mastodon, I need some tech advice please about alternatives to Youtube. Our community garden has produced a series of short videos about all aspects of food gardening. We want to embed them on out Wordpress site, and we don't want to monetise. We have a small amount of funding available. Alternatives to uploading to Youtube? (Please share if you can think of anyone who might be able to help? #video

20th Anniversary – probably
In 2004 I found myself unemployed. By some strange coincidence this morning I read a post from Ben Parfitt "Thanks for the Great Ride". It seems that just as I was looking for a new job he had found one: "my new capacity as a resource policy analyst with the Canadian Centre for Policy Alternatives, BC Office." I wasn't exactly clear on the precise date of either event, so I went looking in my filing cabinet and come across this docume…

20th Anniversary – probably
In 2004 I found myself unemployed. By some strange coincidence this morning I read a post from Ben Parfitt “Thanks for the Great Ride”. It seems that just as I was looking for a new job…

This https://arxiv.org/abs/2204.05062 has been replaced.
link: https://scholar.google.com/scholar?q=a

On Locally Rationalizable Social Choice Functions
We consider a notion of rationalizability, where the rationalizing relation may depend on the set of feasible alternatives. More precisely, we say that a choice function is locally rationalizable if it is rationalized by a family of rationalizing relations such that a strict preference between two alternatives in some feasible set is preserved when removing other alternatives. Tyson (2008) has shown that a choice function is locally rationalizable if and only if it satisfies Sen's $γ$. We expa…

Who Followed the Blueprint? Analyzing the Responses of U.S. Federal Agencies to the Blueprint for an AI Bill of Rights
Darren Lage, Riley Pruitt, Jason Ross Arnold
https://arxiv.org/abs/2404.19076 https://arxiv.org/pdf/2404.19076
arXiv:2404.19076v1 Announce Type: new
Abstract: This study examines the extent to which U.S. federal agencies responded to and implemented the principles outlined in the White House's October 2022 "Blueprint for an AI Bill of Rights." The Blueprint provided a framework for the ethical governance of artificial intelligence systems, organized around five core principles: safety and effectiveness, protection against algorithmic discrimination, data privacy, notice and explanation about AI systems, and human alternatives and fallback.
Through an analysis of publicly available records across 15 federal departments, the authors found limited evidence that the Blueprint directly influenced agency actions after its release. Only five departments explicitly mentioned the Blueprint, while 12 took steps aligned with one or more of its principles. However, much of this work appeared to have precedents predating the Blueprint or motivations disconnected from it, such as compliance with prior executive orders on trustworthy AI. Departments' activities often emphasized priorities like safety, accountability and transparency that overlapped with Blueprint principles, but did not necessarily stem from it.
The authors conclude that the non-binding Blueprint seems to have had minimal impact on shaping the U.S. government's approach to ethical AI governance in its first year. Factors like public concerns after high-profile AI releases and obligations to follow direct executive orders likely carried more influence over federal agencies. More rigorous study would be needed to definitively assess the Blueprint's effects within the federal bureaucracy and broader society.

User asks for advice on whether to stop logging ICMP traffic in their OT environment due to cost, despite knowing it may prevent detection of certain attacks. They seek opinions/alternatives on handling large volumes of ICMP traffic. https://reddit.com/r/cybersecurity/comments/1aswds8/

Perhaps the most interesting article I've read on Europe's efforts to decarbonise road transport, the controversy over electrification, the proposed alternatives, Chinese manufacturing and a way forward for Europe.
(article in French, screenshots translated with DeepL)
…

Fin du véhicule thermique : pourquoi et comment y parvenir ? | Terra Nova
Dans le cadre de la campagne pour les élections européennes 2024, nous avons demandé à différents experts de formuler des recommandations sur plusieurs questions stratégiques pour l’avenir de l’Union européenne. Nous ouvrons cette série avec une contribution de Jean-Philippe Hermine, directeur de l’Institut Mobilités en Transition (IMT), à qui nous avons posé la question de la fin du véhicule thermique. Alors que certains émettent des doutes sur les orientations du Green Deal…

It feels so simple, yet I spent several days on it and surprisingly learned a lot of time-related things (not just synchronization). I feel like adding more (perhaps caused by the proprietary alternatives out there), but I should also consider just leaving this very simple and not adding ridiculous (but cool) features.
https://time.gusted.xy…

An Analysis on Matching Mechanisms and Token Pruning for Late-interaction Models
Qi Liu, Gang Guo, Jiaxin Mao, Zhicheng Dou, Ji-Rong Wen, Hao Jiang, Xinyu Zhang, Zhao Cao
https://arxiv.org/abs/2403.13291

An Analysis on Matching Mechanisms and Token Pruning for Late-interaction Models
With the development of pre-trained language models, the dense retrieval models have become promising alternatives to the traditional retrieval models that rely on exact match and sparse bag-of-words representations. Different from most dense retrieval models using a bi-encoder to encode each query or document into a dense vector, the recently proposed late-interaction multi-vector models (i.e., ColBERT and COIL) achieve state-of-the-art retrieval effectiveness by using all token embeddings to …

Exploring Eco-Friendly Gas Mixtures for Resistive Plate Chambers: A Comprehensive Study on Performance and Aging
The RPC ECOGas@GIF collaboration, :, L. Quaglia, M. Abbrescia, G. Aielli, R. Aly, M. C. Arena, M. Barroso, L. Benussi, S. Bianco, D. Boscherini, F. Bordon, A. Bruni, S. Buontempo, M. Busato, P. Camarri, R. Cardarelli, L. Congedo, D. De Jesus Damiao, M. De Serio, A. Di Ciaccio, L. Di Stante, P. Dupieux, J. Eysermans, A. Ferretti, G. Galati, M. Gagliardi, S. Garetti, R. Gui…

Exploring Eco-Friendly Gas Mixtures for Resistive Plate Chambers: A Comprehensive Study on Performance and Aging
Resistive Plate Chambers (RPCs) are gaseous detectors widely used in high energy physics experiments, operating with a gas mixture primarily containing Tetrafluoroethane (C$_{2}$H$_{2}$F$_{4}$), commonly known as R-134a, which has a global warming potential (GWP) of 1430. To comply with European regulations and explore environmentally friendly alternatives, the RPC EcoGas@GIF++ collaboration, involving ALICE, ATLAS, CMS, LHCb/SHiP, and EP-DT communities, has undertaken intensive R\&D efforts to…

a tax on shipping water.
be it bottled, soda, milk, or milk alternatives
and an extra tax on it being plastic

A deconstruction of methods to derive one-point lensing statistics
Viviane Alfradique, Tiago Castro, Valerio Marra, Miguel Quartin, Carlo Giocoli, Pierluigi Monaco
https://arxiv.org/abs/2405.00147

A deconstruction of methods to derive one-point lensing statistics
Gravitational lensing is a crucial tool for exploring cosmic phenomena, providing insights into galaxy clustering, dark matter, and dark energy. Given the substantial computational demands of $N$-body simulations, approximate methods like $\texttt{PINOCCHIO}$ and $\texttt{turboGL}$ offer viable alternatives for simulating lensing probability density functions (PDFs). This paper evaluates these methods in contexts where baryonic effects are negligible, focusing on dark matter-dominated models an…

This week's post explores genealogy, revealing complex family histories, and critiques a proposed gun safety initiative, while highlighting successful alternatives for veteran suicide prevention.
#selfharm #22aday

Mowing Down History: Genealogy Discoveries, and Changes in the Backyard – Bob Mueller
Amidst genealogical discoveries and contemplations on gun safety, transitions abound.

Probabilistic Tracker Management Policies for Low-Cost and Scalable Rowhammer Mitigation
Aamer Jaleel, Stephen W. Keckler, Gururaj Saileshwar
https://arxiv.org/abs/2404.16256

Probabilistic Tracker Management Policies for Low-Cost and Scalable Rowhammer Mitigation
This paper focuses on mitigating DRAM Rowhammer attacks. In recent years, solutions like TRR have been deployed in DDR4 DRAM to track aggressor rows and then issue a mitigative action by refreshing neighboring victim rows. Unfortunately, such in-DRAM solutions are resource-constrained (only able to provision few tens of counters to track aggressor rows) and are prone to thrashing based attacks, that have been used to fool them. Secure alternatives for in-DRAM trackers require tens of thousands …

Hi Mastodon, I need some tech advice please about alternatives to Youtube. Our community garden has produced a series of short videos about all aspects of food gardening. We want to embed them on out Wordpress site, and we don't want to monetise. We have a small amount of funding available. Alternatives to uploading to Youtube? (Please share if you can think of anyone who might be able to help? #video

This https://arxiv.org/abs/2206.15333 has been replaced.
link: https://scholar.google.com/scholar?q=a

Classification of Gravitational Waves in Higher-dimensional Space-time and Possibility of Observation
The direct detection of gravitational waves opens the possibility to test general relativity and its alternatives in the strong field regime. Here we focus on the test of the existence of extra dimensions. The classification of gravitational waves in metric gravity theories according to their polarizations in higher-dimensional space-time and the possible observation of these polarizations in 3-dimensional subspace are discussed in this work. And we show that the difference in the response of g…

Forward Direct Feedback Alignment for Online Gradient Estimates of Spiking Neural Networks
Florian Bacho, Dminique Chu
https://arxiv.org/abs/2403.08804 htt…

Forward Direct Feedback Alignment for Online Gradient Estimates of Spiking Neural Networks
There is an interest in finding energy efficient alternatives to current state of the art neural network training algorithms. Spiking neural network are a promising approach, because they can be simulated energy efficiently on neuromorphic hardware platforms. However, these platforms come with limitations on the design of the training algorithm. Most importantly, backpropagation cannot be implemented on those. We propose a novel neuromorphic algorithm, the \textit{Spiking Forward Direct Feedbac…

On the Weighted Top-Difference Distance: Axioms, Aggregation, and Approximation
Andrea Aveni, Ludovico Crippa, Giulio Principi
https://arxiv.org/abs/2403.15198

On the Weighted Top-Difference Distance: Axioms, Aggregation, and Approximation
We study a family of distance functions on rankings that allow for asymmetric treatments of alternatives and consider the distinct relevance of the top and bottom positions for ordered lists. We provide a full axiomatic characterization of our distance. In doing so, we retrieve new characterizations of existing axioms and show how to effectively weaken them for our purposes. This analysis highlights the generality of our distance as it embeds many (semi)metrics previously proposed in the litera…

20th Anniversary – probably
In 2004 I found myself unemployed. By some strange coincidence this morning I read a post from Ben Parfitt "Thanks for the Great Ride". It seems that just as I was looking for a new job he had found one: "my new capacity as a resource policy analyst with the Canadian Centre for Policy Alternatives, BC Office." I wasn't exactly clear on the precise date of either event, so I went looking in my filing cabinet and come across this docume…

20th Anniversary – probably
In 2004 I found myself unemployed. By some strange coincidence this morning I read a post from Ben Parfitt “Thanks for the Great Ride”. It seems that just as I was looking for a new job…

This https://arxiv.org/abs/2305.04886 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Efficient vectors in priority setting methodology
The Analytic Hierarchy Process (AHP) is a much discussed method in ranking business alternatives based on empirical and judgemental information. We focus here upon the key component of deducing efficient vectors for a reciprocal matrix of pair-wise comparisons. It is not yet known how to produce all efficient vectors. It has been shown that the entry-wise geometric mean of all columns is efficient for any reciprocal matrix. Here, by combining some new basic observations with some known theory, …

Because of the sodium content; Aussie kids eat more then the recommended upper limit.
In Western Australia, public school lunches begin to limit the inclusions of certain foods, like ham | Salon.com
https://www.sa…

Be mindful of the food your child is consuming on a daily basis, especially in school
"When looking for low-salt alternatives to ham, there are several options to consider . . . "

Recent Advances on Transition-Metal-Based Layered Double Hydroxides Nanosheets for Electrocatalytic Energy Conversion
Yuchen Wang, Man Zhang, Yaoyu Liu, Zhikeng Zheng, Biying Liu, Meng Chen, Guoqing Guan, Kai Yan
https://arxiv.org/abs/2403.16461

Recent Advances on Transition-Metal-Based Layered Double Hydroxides Nanosheets for Electrocatalytic Energy Conversion
Transition-metal-based layered double hydroxides (TM-LDHs) nanosheets are promising electrocatalysts in the renewable electrochemical energy conversion system, which are regarded as alternatives to noble metal-based materials. In this review, recent advances on effective and facile strategies to rationally design TM-LDHs nanosheets as electrocatalysts, such as increasing the number of active sties, improving the utilization of active sites (atomic-scale catalysts), modulating the electron confi…

Collective Evaluation Problem
Yasunori Okumura
https://arxiv.org/abs/2402.16309 https://arxiv.org/pdf/2402.16309

Collective Evaluation Problem
This study focuses on situations where a finite set of alternatives is evaluated by collecting evaluations from several individuals, some of whom may not evaluate specific alternatives. The collection of subsets of alternatives that individuals (can) evaluate is referred to as an evaluability profile. For a given evaluability profile, we define a collective evaluation function whose inputs are the evaluation orders of individuals on the subsets of alternatives that they evaluate. We investigate…

This https://arxiv.org/abs/2311.11833 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_ees…

Towards Perturbation-Induced Static Pivoting on GPU-Based Linear Solvers
Linear system solving is a key tool for computational power system studies, e.g., optimal power flow, transmission switching, or unit commitment. CPU-based linear system solver speeds, however, have saturated in recent years. Emerging research shows that GPU-based linear system solvers are beginning to achieve notable speedup over CPU-based alternatives in some applications. Due to the architecture of GPU memory access, numerical pivoting represents the new bottleneck which prevents GPU-based s…

User is questioning if they can use Crowdstrike as their primary SIEM, and the potential pros and cons. They're also considering alternatives such as Security Onion for non-desktop/server devices based on cost and efficacy. https://reddit.com/r/cybersecurity/comments/1c78i8r/

This https://arxiv.org/abs/2403.15198 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csGT_…

On the Weighted Top-Difference Distance: Axioms, Aggregation, and Approximation
We study a family of distance functions on rankings that allow for asymmetric treatments of alternatives and consider the distinct relevance of the top and bottom positions for ordered lists. We provide a full axiomatic characterization of our distance. In doing so, we retrieve new characterizations of existing axioms and show how to effectively weaken them for our purposes. This analysis highlights the generality of our distance as it embeds many (semi)metrics previously proposed in the litera…

Quantile Granger Causality in the Presence of Instability
Alexander Mayer, Dominik Wied, Victor Troster
https://arxiv.org/abs/2402.09744 https://

Quantile Granger Causality in the Presence of Instability
We propose a new framework for assessing Granger causality in quantiles in unstable environments, for a fixed quantile or over a continuum of quantile levels. Our proposed test statistics are consistent against fixed alternatives, they have nontrivial power against local alternatives, and they are pivotal in certain important special cases. In addition, we show the validity of a bootstrap procedure when asymptotic distributions depend on nuisance parameters. Monte Carlo simulations reveal that …

Intrinsic Limits of Charge Carrier Mobilities in Layered Halide Perovskites
Bruno Cucco, Joshua Leveillee, Viet-Anh Ha, Jacky Even, Mika\"el Kepenekian, Feliciano Giustino, George Volonakis
https://arxiv.org/abs/2404.12960

Intrinsic Limits of Charge Carrier Mobilities in Layered Halide Perovskites
Layered halide perovskites have emerged as potential alternatives to three-dimensional halide perovskites due to their improved stability and larger material phase space, allowing fine-tuning of structural, electronic, and optical properties. However, their charge carrier mobilities are significantly smaller than that of three-dimensional halide perovskites, which has a considerable impact on their application in optoelectronic devices. Here, we employ state-of-the-art ab initio approaches to u…

This https://arxiv.org/abs/2310.13694 has been replaced.
initial toot: https://mastoxiv.page/@arX…

Studying speed-accuracy trade-offs in best-of-n collective decision-making through heterogeneous mean-field modeling
To succeed in their objectives, groups of individuals must be able to make quick and accurate collective decisions on the best option among a set of alternatives with different qualities. Group-living animals aim to do that all the time. Plants and fungi are thought to do so too. Swarms of autonomous robots can also be programmed to make best-of-n decisions for solving tasks collaboratively. Ultimately, humans critically need it and so many times they should be better at it. Thanks to their mat…

This https://arxiv.org/abs/2403.04835 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

Non-Invertible Symmetries, Anomalies and Scattering Amplitudes
We show that crossing symmetry of S-matrices is modified in certain theories with non-invertible symmetries or anomalies. Focusing on integrable flows to gapped phases in two dimensions, we find that S-matrices derived previously from the bootstrap approach are incompatible with non-invertible symmetries along the flow. We present consistent alternatives, which however violate standard crossing symmetry and obey modified rules dictated by fusion categories. We extend these rules to theories wit…

Thickness effect on superconducting properties of niobium films for radio-frequency cavity applications
Antonio Bianchi, Marco Bonura, Carlota P. A. Carlos, Stewart Leith, Guillaume Rosaz, Carmine Senatore, Walter Venturini Delsolaro
https://arxiv.org/abs/2403.11245

Thickness effect on superconducting properties of niobium films for radio-frequency cavity applications
Niobium-coated copper radio-frequency cavities are cost-effective alternatives to bulk niobium cavities, given the lower material costs of copper substrates and their operation in liquid helium at around 4.2 K. However, these cavities historically exhibited a gradual degradation in performance with the accelerating field. This phenomenon, not yet fully understood, limits the application of niobium thin film cavities in accelerators where the real-estate gradient needs to be maximized. Recent st…

User is seeking information on open-source or low-cost cybersecurity controls as alternatives to traditional big brands for everyday enterprise. They are open to suggestions, comments, or tips that can help them find the right resources. https://reddit.com/r/cybersecurity/comments/1c689uh/

This https://arxiv.org/abs/2401.09905 has been replaced.
initial toot: https://mastoxiv.page/@ar…

FAT-GEMs: (Field Assisted) Transparent Gaseous-Electroluminescence Multipliers
The idea of implementing electroluminescence-based amplification through transparent multi-hole structures (FAT-GEMs) has been entertained for some time. Arguably, for such a technology to be attractive it should perform at least at a level comparable to conventional alternatives based on wires or meshes. We present now a detailed calorimetric study carried out for 5.9~keV X-rays in xenon, for pressures ranging from 2 to 10~bar, resorting to different geometries, production and post-processing …

Estudos de cen\'arios de implanta\c{c}\~ao de um imposto ambiental no transporte a\'ereo no Brasil
Carolina B. Resende, Alessandro V. M. Oliveira
https://arxiv.org/abs/2402.12404

Estudos de cenários de implantação de um imposto ambiental no transporte aéreo no Brasil
In recent years, the topic of global warming and greenhouse gas emissions has been increasingly in the media. This theme has raised various flags, showing concern for the future and seeking alternatives for a more sustainable life over the years. When studying greenhouse gas emissions, one of the main emitters of such gases is the burning of fuels, in which transport vehicles that depend on gas and oil are included. In this respect, air transport through aircraft is one of the sources emitting …

This https://arxiv.org/abs/2205.10969 has been replaced.
link: https://scholar.google.com/scholar?q=a

Application of tropical optimization for solving multicriteria problems of pairwise comparisons using log-Chebyshev approximation
We consider a decision-making problem to find absolute ratings of alternatives that are compared in pairs under multiple criteria, subject to constraints in the form of two-sided bounds on ratios between the ratings. Given matrices of pairwise comparisons made according to the criteria, the problem is formulated as the log-Chebyshev approximation of these matrices by a common consistent matrix (a symmetrically reciprocal matrix of unit rank) to minimize the approximation errors for all matrices…

Macroscopic pricing schemes for the utilization of pool ride-hailing vehicles in bus lanes
Lynn Fayed, Gustav Nilsson, Nikolas Geroliminis
https://arxiv.org/abs/2403.13651

Macroscopic pricing schemes for the utilization of pool ride-hailing vehicles in bus lanes
With the increasing popularity of ride-hailing services, new modes of transportation are having a significant impact on the overall performance of transportation networks. As a result, there is a need to ensure that both the various transportation alternatives and the spatial network resources are used efficiently. In this work, we analyze a network configuration where part of the urban transportation network is devoted to dedicated bus lanes. Apart from buses, we let pool ride-hailing trips us…

This https://arxiv.org/abs/2304.06961 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_eco…

Social Welfare Functions with Voters Qualifications: Impossibility Results
We consider the social welfare function a la Arrow, where some voters are not qualified to evaluate some alternatives. Thus, the inputs of the social welfare function are the preferences of voters on the alternatives that they are qualified to evaluate only. Our model is a generalization of the peer rating model, where each voter evaluates the other voters (except for himself/herself). We demonstrate the following three impossibility results. First, if a transitive valued social welfare functio…

This https://arxiv.org/abs/2212.02285 has been replaced.
link: https://scholar.google.com/scholar?q=a

Realistic Total-Body J-PET Geometry Optimization -- Monte Carlo Study
Total-Body PET is one of the most promising medical diagnostics modalities. The high sensitivity provided by Total-Body technology can be advantageous for novel tomography methods like positronium imaging. Several efforts are ongoing to lower the price of the TB-PET systems. Among the alternatives, the Jagiellonian PET (J-PET) technology, based on plastic scintillator strips, offers a low-cost alternative. The work aimed to compare five Total-Body J-PET geometries as a possible next generation …

Machine Learning-guided accelerated discovery of structure-property correlations in lean magnesium alloys for biomedical applications
Sreenivas Raguraman, Maitreyee Sharma Priyadarshini, Tram Nguyen, Ryan McGovern, Andrew Kim, Adam J. Griebel, Paulette Clancy, Timothy P. Weihs
https://arxiv.org/abs/2404.13022

Machine Learning-guided accelerated discovery of structure-property correlations in lean magnesium alloys for biomedical applications
Magnesium alloys are emerging as promising alternatives to traditional orthopedic implant materials thanks to their biodegradability, biocompatibility, and impressive mechanical characteristics. However, their rapid in-vivo degradation presents challenges, notably in upholding mechanical integrity over time. This study investigates the impact of high-temperature thermal processing on the mechanical and degradation attributes of a lean Mg-Zn-Ca-Mn alloy, ZX10. Utilizing rapid, cost-efficient cha…

Physics-Guided Neural Networks for Intraventricular Vector Flow Mapping
Hang Jung Ling, Salom\'e Bru, Julia Puig, Florian Vix\`ege, Simon Mendez, Franck Nicoud, Pierre-Yves Courand, Olivier Bernard, Damien Garcia
https://arxiv.org/abs/2403.13040

Physics-Guided Neural Networks for Intraventricular Vector Flow Mapping
Intraventricular vector flow mapping (iVFM) seeks to enhance and quantify color Doppler in cardiac imaging. In this study, we propose novel alternatives to the traditional iVFM optimization scheme by utilizing physics-informed neural networks (PINNs) and a physics-guided nnU-Net-based supervised approach. Through rigorous evaluation on simulated color Doppler images derived from a patient-specific computational fluid dynamics model and in vivo Doppler acquisitions, both approaches demonstrate c…

This https://arxiv.org/abs/2312.14790 has been replaced.
initial toot: https://mastoxiv.page/@ar…

Production and optical characterisation of blended Polyethylene Tethraplate (PET)/Polyethylene Naphtalate (PEN) scintillator samples
In Particle and Nuclear Physics research and related applications, organic scintillators provide a cost-effective technology for the detection of ionising radiation. The next generation of experiments in this field is driving fundamental research and development on these materials, demanding improved light yield, radiation hardness, and fast response. Common materials such as PEN and PET have been found to offer scintillation properties competitive to commercial alternatives without the use of …

Spintronic devices as next-generation computation accelerators
Victor H. Gonz\'alez, Artem Litvinenko, Akash Kumar, Roman Khymyn, Johan {\AA}kerman
https://arxiv.org/abs/2403.13564

Spintronic devices as next-generation computation accelerators
The ever increasing demand for computational power combined with the predicted plateau for the miniaturization of existing silicon-based technologies has made the search for low power alternatives an industrial and scientifically engaging problem. In this work, we explore spintronics-based Ising machines as hardware computation accelerators. We start by presenting the physical platforms on which this emerging field is being developed, the different control schemes and the type of algorithms and…

This https://arxiv.org/abs/2309.15498 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

A Control Theoretical Approach to Online Constrained Optimization
In this paper we focus on the solution of online problems with time-varying, linear equality and inequality constraints. Our approach is to design a novel online algorithm by leveraging the tools of control theory. In particular, for the case of equality constraints only, using robust control we design an online algorithm with asymptotic convergence to the optimal trajectory, differently from the alternatives that achieve non-zero tracking error. When also inequality constraints are present, we…

This https://arxiv.org/abs/2309.15498 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

A Control Theoretical Approach to Online Constrained Optimization
In this paper we focus on the solution of online problems with time-varying, linear equality and inequality constraints. Our approach is to design a novel online algorithm by leveraging the tools of control theory. In particular, for the case of equality constraints only, using robust control we design an online algorithm with asymptotic convergence to the optimal trajectory, differently from the alternatives that achieve non-zero tracking error. When also inequality constraints are present, we…

The Limits of Identification in Discrete Choice
Christopher P. Chambers, Christopher Turansick
https://arxiv.org/abs/2403.13773 https://

The Limits of Identification in Discrete Choice
We study identification and linear independence in random utility models. We characterize the dimension of the random utility model as the cyclomatic complexity of a specific graphical representation of stochastic choice data. We show that, as the number of alternatives grows, any linearly independent set of preferences is a vanishingly small subset of the set of all preferences. We introduce a new condition on sets of preferences which is sufficient for linear independence. We demonstrate by e…

The Limits of Identification in Discrete Choice
Christopher P. Chambers, Christopher Turansick
https://arxiv.org/abs/2403.13773 https://

The Limits of Identification in Discrete Choice
We study identification and linear independence in random utility models. We characterize the dimension of the random utility model as the cyclomatic complexity of a specific graphical representation of stochastic choice data. We show that, as the number of alternatives grows, any linearly independent set of preferences is a vanishingly small subset of the set of all preferences. We introduce a new condition on sets of preferences which is sufficient for linear independence. We demonstrate by e…