Tootfinder

"AI, encryption, and the sins of the 90s"
https://signal.org/blog/pdfs/ndss-keynote.pdf

"AI, encryption, and the sins of the 90s"
https://signal.org/blog/pdfs/ndss-keynote.pdf

Helicity-dependent parton distribution functions at next-to-next-to-leading order accuracy from inclusive and semi-inclusive deep-inelastic scattering data
MAP (Multi-dimensional Analyses of Partonic distributions), Collaboration, :, Valerio Bertone, Amedeo Chiefa, Emanuele R. Nocera
https://arxiv.org/abs/2404.04712

Helicity-dependent parton distribution functions at next-to-next-to-leading order accuracy from inclusive and semi-inclusive deep-inelastic scattering data
We present MAPPDFpol1.0, a new determination of the helicity-dependent parton distribution functions (PDFs) of the proton from a set of longitudinally polarised inclusive and semi-inclusive deep-inelastic scattering data. The determination includes, for the first time, next-to-next-to-leading order QCD corrections to both processes, and is carried out in a framework that combines a neural-network parametrisation of PDFs with a Monte Carlo representation of their uncertainties. We discuss the qu…

Insecure Features in PDFs
https://web-in-security.blogspot.com/2021/01/insecure-features-in-pdfs.html

Bookmarked: OCR PDFs and images directly in your browser #OCR

This https://arxiv.org/abs/2403.16703 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

Consistency of pion form factor and unpolarized transverse momentum dependent parton distributions beyond leading twist in the light-front quark model
We investigate the interplay among the pion's form factor, transverse momentum dependent distributions (TMDs), and parton distribution functions (PDFs) extending our light-front quark model (LFQM) computation based on the Bakamjian-Thomas construction for the two-point function[41,42] to the three-point and four-point functions. Ensuring the four-momentum conservation at the meson-quark vertex from the Bakamjian-Thomas construction, the meson mass is taken consistently as the corresponding inva…

If you're working with #IdAustria signed PDFs and want to verify that A-Trust didn't pull an Austrian Solution again, signed PDFs can also be verified at <https://eidas.ec.europa.eu/efda/tl-bro

What sites should I avoid because there's a danger of finding PDFs/ePubs you can't legally find anywhere on the web, like mid 20th century books?

Started the day 1.5hrs earlier to get some work done before leaving home to hike but made zero progress because:
- Laptop restarted overnight for no apparent reason. No crash. Update history says nothing for 10 days.
- 20 mins recreating environment: various logins, PPTs, PDFs, web pages, dev environ,…
- Noticed a license change that potentially interferes w a plan, researched origins and explanations.
- Stuff
- Need a sit down 😩
Modern

This https://arxiv.org/abs/2312.05032 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

Off-lightcone Wilson-line operators in gradient flow
Off-lightcone Wilson-line operators are constructed using local operators connected by time-like or space-like Wilson lines, which ensure gauge invariance. Off-lightcone Wilson-line operators have broad applications in various contexts. For instance, space-like Wilson-line operators play a crucial role in determining quasi-distribution functions (quasi-PDFs), while time-like Wilson-line operators are essential for understanding quarkonium decay and production within the potential non-relativist…

Fun things about publishing #437: learning how to export PDFs according PDF/X-1a:2001. Yep. That’s the name for a standard

@… Willkommen! 😃 Schau mal ganz unten auf der itchio-Seite:
"Paizo Inc. is offering PDF copies of Pathfinder Lost Omens: Knights of Lastwall to all backers of this charity bundle. Note: Paizo grants these PDFs through paizo.com, so you will need to provide an email account associated with a paizo.com account in order to receive this reward.…

Adobe launches AI Assistant in Acrobat in beta, to summarize PDFs, answer and recommend questions, and more, letting paying users "easily chat with documents" (Jess Weatherbed/The Verge)
https://www.theverge.com/2024/2/20/2407721

Adobe Acrobat’s new AI chatbot helps users navigate massive documents
Adobe is adding a new generative AI experience to its Acrobat PDF software that allows users to “easily chat with documents” to get the information they need.

@… @… Thank you, Al! The docs are top-notch,
I have at least one of the PDFs open daily as reference.

Do any of my connections have experience with LangChain?
I'll preface this with "I'm not a dev/coder".
I have a question on loading data. Say I have I am pointing to a directory of PDFs that I want to chat with. I start a chat session, it indexes it all into a vector db and I can chat with it. What happens when I add a new PDF in the directory? Does it update it does it wait until I restart the session?

This morning, I opened a PDF to find Adobe Acrobat giving me an AI-generated summary of it. That led to a rabbit hole of finding all the places Acrobat’s AI Assistant has to be turned off. Here they are: https://www.wordsbywes.ink/articles/tools/turnin…

Turning Off Adobe Acrobat's AI Assistant - Words by Wes
This morning, I opened a PDF to find Acrobat giving me an AI-generated summary of it. Since I frequently deal with unpublished manuscripts and other confidential documents for clients, I can’t have them processed by generative AI tools (and I don’t want my PDFs being read by LLMs either). So…

Started the day 1.5hrs earlier to get some work done before leaving home to hike but made zero progress because:
- Laptop restarted overnight for no apparent reason. No crash. Update history says nothing for 10 days.
- 20 mins recreating environment: various logins, PPTs, PDFs, web pages, dev environ,…
- Noticed a license change that potentially interferes w a plan, researched origins and explanations.
- Stuff
- Need a sit down 😩
Modern

2021 retro-link! https://pdf.math.dev/ - paged.js: beautiful PDFs from HTML.

It's kinda weird that the PDF viewer/editor in Firefox is probably the best version to use for people on GNOME if you need more than mere viewing (adding an image/highlighting, etc).
I know there is Okular for KDE which is very good but I don't wanna pull in half of the K* stack just to add a signature to a bunch of PDFs.

Hierarchical Multimodal Pre-training for Visually Rich Webpage Understanding
Hongshen Xu, Lu Chen, Zihan Zhao, Da Ma, Ruisheng Cao, Zichen Zhu, Kai Yu
https://arxiv.org/abs/2402.18262

Hierarchical Multimodal Pre-training for Visually Rich Webpage Understanding
The growing prevalence of visually rich documents, such as webpages and scanned/digital-born documents (images, PDFs, etc.), has led to increased interest in automatic document understanding and information extraction across academia and industry. Although various document modalities, including image, text, layout, and structure, facilitate human information retrieval, the interconnected nature of these modalities presents challenges for neural networks. In this paper, we introduce WebLM, a mul…

Publish your data! Not PDFs. A clear ask for #OpendataCH from a team at the #OpenFarmingHackdays2024 who used a combination of public and private sources for their predictive farming #datascience

Schädlingsprognose mit Daten neu interpretiert
A small ML project that attempts to predict the occurrence of pests based on historical data.

a magazine archive i'd love to read: swing, a #music weekly published in #jamaica, 1969-1980ish. i've found 2 dead links to individual PDFs & a few scattered articles, but nothing complete. real-time coverage of the #reggae

From The Archives: Swing Magazine July August 1975 Part 1!

Wait what? #Firefox updated last night and now it can #edit #pdf ? Well that's a pleasant surpr-.
Ah nope. Too good to be true. Its not editing PDF, you can't modify anything in the PDF document itself, you can only add t…

Considering how we just lost Vice, kind of feel better about my choice to start my own lists of things. One thing I toyed with was providing PDFs of articles I recommend 30 days after the Penguin Pick just in case things go down like they did somewhere else. We need more proactive archiving.

#lifehack
Nach jedem IKEA-Einkauf direkt die Bauanleitungs-PDFs runterladen und mit Beschreibung des Möbels als Ordnername ablegen.
Euer zukünftiges Ich wird es euch beim nächsten Umzug danken.

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…

One of the most underrated Calibre features is the ability to full-text search and index the content of your books and PDFs.
It is not a surprise, though, because that feature is unbelievably hidden in an already kinda messy UI.

This morning, I opened a PDF to find Adobe Acrobat giving me an AI-generated summary of it. That led to a rabbit hole of finding all the places Acrobat’s AI Assistant has to be turned off. Here they are: https://www.wordsbywes.ink/articles/tools/turnin…

Turning Off Adobe Acrobat's AI Assistant - Words by Wes
This morning, I opened a PDF to find Acrobat giving me an AI-generated summary of it. Since I frequently deal with unpublished manuscripts and other confidential documents for clients, I can’t have them processed by generative AI tools (and I don’t want my PDFs being read by LLMs either). So…

People who ask for your opinion then get mad/argumentative when you tell them what they don't want to hear deserve to be in the bad place. Not that bad place, but the place where they're forced to do endless helpdesk calls showing executives how to open PDFs.

Pixelmator Pro adds editable PDF support. Not editable forms, not the ability to drop text boxes on top of an existing document, it converts the document’s text vectors back into editable text.
https://www.macrumors.com/2024/04/12/pixelmator-pro-3-5-8-p…

Pixelmator Pro Adds Support for Editing Text in PDFs
Pixelmator Pro 3.5.8 has gone live on the Mac App Store, and the latest update to the popular image editing app brings the ability to edit text in...

Considering how we just lost Vice, kind of feel better about my choice to start my own lists of things. One thing I toyed with was providing PDFs of articles I recommend 30 days after the Penguin Pick just in case things go down like they did somewhere else. We need more proactive archiving.

A first determination of the strong coupling $\alpha_S$ at approximate N$^{3}$LO order in a global PDF fit
T. Cridge, L. A. Harland-Lang, R. S. Thorne
https://arxiv.org/abs/2404.02964

A first determination of the strong coupling $α_S$ at approximate N$^{3}$LO order in a global PDF fit
We present the first determination of the value of the strong coupling via a simultaneous global fit of the proton parton distribution functions (PDFs) at approximate N$^{3}$LO (aN$^{3}$LO) order in QCD. This makes use of the MSHT global PDF fitting framework, and in particular the recent theoretical advances that allow a PDF fit to now be performed at this order. The value of the strong coupling is found to be $α_S(M_Z^2)$(aN$^{3}$LO)$ = 0.1170 \pm 0.0016$. This is in excellent agreement with…

This https://arxiv.org/abs/2310.19047 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hep…

Transversity PDFs of the proton from lattice QCD with physical quark masses
We present a lattice QCD calculation of the transversity isovector- and isoscalar-quark parton distribution functions (PDFs) of the proton utilizing a perturbative matching at next-to-leading-order (NLO) accuracy. Additionally, we determine the isovector and isoscalar tensor charges for the proton. In both calculations, the disconnected contributions to the isoscalar matrix elements have been ignored. The calculations are performed using a single ensemble of $N_f = 2 +1$ highly-improved stagger…

Liouville models of particle-laden flow
Daniel Dom\'inguez-V\'azquez, Gustaaf B. Jacobs, Daniel M. Tartakovsky
https://arxiv.org/abs/2403.04913 htt…

Liouville models of particle-laden flow
Langevin (stochastic differential) equations are routinely used to describe particle-laden flows. They predict Gaussian probability density functions (PDFs) of a particle's trajectory and velocity, even though experimentally observed dynamics might be highly non-Gaussian. Our Liouville approach overcomes this dichotomy by replacing the Wiener process in the Langevin models with a (small) set of random variables, whose distributions are tuned to match the observed statistics.

This https://arxiv.org/abs/2309.11269 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

Impact of Inclusive Electron Ion Collider Data on Collinear Parton Distributions
A study is presented of the impact of simulated inclusive Electron Ion Collider Deep Inelastic Scattering data on the determination of the proton and nuclear parton distribution functions (PDFs) at next-to-next-to-leading and next-to-leading order in QCD, respectively. The influence on the proton PDFs is evaluated relative to the HERAPDF2.0 set, which uses inclusive HERA data only, and also relative to the global fitting approach of the MSHT20 PDFs. The impact on nuclear PDFs is assessed relati…

This https://arxiv.org/abs/2306.14960 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

Parton Distributions from Boosted Fields in the Coulomb Gauge
We propose a new method to calculate parton distribution functions (PDFs) from lattice correlations of boosted quarks and gluons in the Coulomb gauge. Compared to the widely used gauge-invariant Wilson-line operators, these correlations greatly simplify the renormalization thanks to the absence of linear power divergence. Besides, they enable access to larger off-axis momenta under preserved 3D rotational symmetry, as well as enhanced long-range precision that facilitates the Fourier transform.…

This https://arxiv.org/abs/2305.10497 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

The Photon Content of the Neutron
In this work, we complete our CT18qed study with the neutron's photon parton distribution function (PDF), which is essential for the nucleus scattering phenomenology. Two methods, CT18lux and CT18qed, based on the LUXqed formalism and the DGLAP evolution, respectively, to determine the neutron's photon PDF have been presented. Various low-$Q^2$ non-perturbative variations have been carefully examined, which are treated as additional uncertainties on top of those induced by quark and gluon PDFs.…

This https://arxiv.org/abs/2308.00115 has been replaced.
initial toot: https://mastoxiv.page/@arX…

Alternative scenarios for the LHC based electron-proton collider
Construction of the ERLC (twin LC) collider tangential to LHC will give opportunity to investigate ep collisions at essentially higher center-of-mass energies than ERL50 and LHC based ep collider. Luminosity estimations show that values well exceeding 10^{34} cm^{-2}s^{-1} can be achieved for ERLC and HL-LHC based ep colliders. Certainly, proposed ep colliders have great potential for clarifying QCD basics and new physics search in addition to providing precise PDFs for adequate interpretation …

This https://arxiv.org/abs/2401.13663 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

Analytic Solutions of the DGLAP Evolution and Theoretical Uncertainties
The energy dependence for the singlet sector of Parton Distributions Functions (PDFs) is described by an entangled pair of ordinary linear differential equations. Although there are no exact analytic solutions, it is possible to provide approximated results depending on the assumptions and the methodology adopted. These results differ in their sub-leading, neglected terms and ultimately they are associated with different treatments of the theoretical uncertainties. In this work, a novel analyti…

This https://arxiv.org/abs/2311.08447 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

An analysis of parton distributions in a pion with Bézier parametrizations
We explore the role of parametrizations for nonperturbative QCD functions in global analyses, with a specific application to extending a phenomenological analysis of the parton distribution functions (PDFs) in the charged pion realized in the xFitter fitting framework. The parametrization dependence of PDFs in our pion fits substantially enlarges the uncertainties from the experimental sources estimated in the previous analyses. We systematically explore the parametrization dependence by employ…

Inclusive and diffractive dijet photoproduction in ultraperipheral Pb-Pb collisions at the LHC
V. Guzey (Jyvaskyla U.,Helsinki Inst. of Phys.)
https://arxiv.org/abs/2403.17449

Inclusive and diffractive dijet photoproduction in ultraperipheral Pb-Pb collisions at the LHC
In this contribution, we summarize NLO pQCD predictions for inclusive and diffractive dijet photoproduction in Pb-Pb UPCs at the LHC. We demonstrate that the theory describes well the preliminary ATLAS data on the inclusive cross section, which probes nuclear parton distributions (PDFs) down to $x_A \approx 0.005$ and which can reduce current uncertainties of the small-$x$ nuclear gluon distribution by approximately a factor of 2. Employing predictions of the leading twist approach to nuclear s…

Inclusive and diffractive dijet photoproduction in ultraperipheral Pb-Pb collisions at the LHC
V. Guzey (Jyvaskyla U.,Helsinki Inst. of Phys.)
https://arxiv.org/abs/2403.17449

Inclusive and diffractive dijet photoproduction in ultraperipheral Pb-Pb collisions at the LHC
In this contribution, we summarize NLO pQCD predictions for inclusive and diffractive dijet photoproduction in Pb-Pb UPCs at the LHC. We demonstrate that the theory describes well the preliminary ATLAS data on the inclusive cross section, which probes nuclear parton distributions (PDFs) down to $x_A \approx 0.005$ and which can reduce current uncertainties of the small-$x$ nuclear gluon distribution by approximately a factor of 2. Employing predictions of the leading twist approach to nuclear s…

This https://arxiv.org/abs/2308.00025 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

On the positivity of MSbar parton distributions
We revisit our argument that shows that parton distribution Functions (PDFs) in the MSbar{ scheme are non-negative in the perturbative region, with the main goals of elucidating its domain of validity and clarifying its theoretical underpinnings. We specifically discuss recent results proving that PDFs can turn negative at sufficiently low scale, we clarify quantitatively various aspects of our derivation of positivity in the perturbative region, and we provide an estimate for the scale above w…

This https://arxiv.org/abs/2301.07715 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

Target mass corrections in lepton--nucleus DIS: theory and applications to nuclear PDFs
Motivated by the wide range of kinematics covered by current and planned deep-inelastic scattering (DIS) facilities, we revisit the formalism, practical implementation, and numerical impact of target mass corrections (TMCs) for DIS on unpolarized nuclear targets. An important aspect is that we only use nuclear and later partonic degrees of freedom, carefully avoiding a picture of the nucleus in terms of nucleons. After establishing that formulae used for individual nucleon targets $(p,n)$, deri…

This https://arxiv.org/abs/2307.11153 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

Exploring the impact of high-precision top-quark pair production data on the structure of the proton at the LHC
The impact of recent LHC top-quark pair production single differential cross section measurements at 13 TeV collision energy on the structure of the proton is explored. In particular, the impact of these high-precision data on the gluon and other parton distribution functions (PDFs) of the proton at intermediate and large partonic momentum fraction $x$ is analyzed. This study extends the CT18 global analysis framework to include these new data. The interplay between top-quark pair and inclusive…