Tootfinder

MV-frames
Jean B Nganou
https://arxiv.org/abs/2405.03604 https://arxiv.org/pdf/2405.03604…

MV-frames
Complete MV-algebras are naturally equipped with frame structures. We call them MV-frames and investigate some of their main the properties as frames. We completely characterized algebraic MV-frames as well as regular MV-frames. In addition, we consider nuclei on MV-frames in general and on MV-frames of ideals of Lukasiewicz rings. Finally, we used the Chang-Mundici functor to explore the frame structures of complete unital lattice-ordered groups.

Raney extensions of frames: algebraic aspects
Anna Laura Suarez
https://arxiv.org/abs/2405.02990 https://arxiv.org/pdf/2405.02990

Raney extensions of frames: algebraic aspects
We draw from Raney duality and generalize the notion of canonical extension for distributive lattices to the context of frames. This is a generalization because for distributive lattices we are in the context of coherent spaces, whereas frames represent arbitrary spaces. We introduce Raney extensions of frames, pairs $(L,C)$ where $C$ is a coframe, $L\subseteq C$ is a frame that meet-generates it, and the inclusion $L\subseteq C$ preserves the frame operations as well as the strongly exact meet…

Bryce Miller: Fires seven shutout frames
#MLB #Baseball #Rotowire

A Study of Dropout-Induced Modality Bias on Robustness to Missing Video Frames for Audio-Visual Speech Recognition
Yusheng Dai, Hang Chen, Jun Du, Ruoyu Wang, Shihao Chen, Jiefeng Ma, Haotian Wang, Chin-Hui Lee
https://arxiv.org/abs/2403.04245

A Study of Dropout-Induced Modality Bias on Robustness to Missing Video Frames for Audio-Visual Speech Recognition
Advanced Audio-Visual Speech Recognition (AVSR) systems have been observed to be sensitive to missing video frames, performing even worse than single-modality models. While applying the dropout technique to the video modality enhances robustness to missing frames, it simultaneously results in a performance loss when dealing with complete data input. In this paper, we investigate this contrasting phenomenon from the perspective of modality bias and reveal that an excessive modality bias on the a…

VLBI Astrometry of Radio Stars to Link Radio and Optical Celestial Reference Frames: Observing Strategies
Jingdong Zhang, Bo Zhang, Shuangjing Xu, Niu Liu, Wen Chen, Hao Ding, Pengfei Jiang, Yan Sun, Jinqing Wang, Lang Cui, Shiming Wen, Xiaofeng Mai, Jinling Li, Fengchun Shu, Yidan Huang
https://arxiv.org/abs/2403.04141

VLBI Astrometry of Radio Stars to Link Radio and Optical Celestial Reference Frames: Observing Strategies
The Gaia celestial reference frame (Gaia-CRF) will benefit from a close assessment with independent methods, such as Very Long Baseline Interferometry (VLBI) measurements of radio stars at bright magnitudes. However, obtaining full astrometric parameters for each radio star through VLBI measurements demands a significant amount of observation time. This study proposes an efficient observing strategy that acquires double-epoch VLBI positions to measure the positions and proper motions of radio s…

I mostly dislike the Digital Foundry videos about consoles. These guys (well, excluding Oliver) compare everything with their jewel encrusted 4090s, and instead of fun and games, talk about frames per second, or how 10 less frames per second make your existence on this planet devoid of meaning, or why playing without RT means you don't actually play a game. They "discuss" rumors. They benchmark the same hardware for three straight years. Basically, they've run out of things…

This https://arxiv.org/abs/2403.02332 has been replaced.
link: https://scholar.google.com/scholar?q=a

UniCtrl: Improving the Spatiotemporal Consistency of Text-to-Video Diffusion Models via Training-Free Unified Attention Control
Video Diffusion Models have been developed for video generation, usually integrating text and image conditioning to enhance control over the generated content. Despite the progress, ensuring consistency across frames remains a challenge, particularly when using text prompts as control conditions. To address this problem, we introduce UniCtrl, a novel, plug-and-play method that is universally applicable to improve the spatiotemporal consistency and motion diversity of videos generated by text-to…

Automatically describe data and models as text using the {report} package. #rstats

This https://arxiv.org/abs/2403.03755 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qu…

Relativization in naturally functorial
In this note, we provide some categorical perspectives on the relativization construction arising from quantum measurement theory in the presence of symmetries and occupying a central place in the operational approach to quantum reference frames. This construction provides, for any quantum system, a quantum channel from the system's algebra to the invariant algebra on the composite system also encompassing the chosen reference, contingent upon a choice of the pointer observable. These maps are …

Yay, new visuals from #Odysseus! Namely from the small astronomy camera ILO-X from which many thumbnaiils and a few hi-res images taken during descent made it to Earth: see https://iloa.org/ilo-x-precursor/ and https://twitter.com/ILOA_Hawaii/status/1765135232221802734 for an animation of all good and bad pictures and https://skyweek.wordpress.com/2024/03/03/crew-8-vor-start-nachster-schichtwechsel-der-iss/ (scroll down) for five of the hi-res frames retrieved from it!

Long story about Scratch and a vast empty field full of tiny bears
My son and I do some simple game projects in Scratch. Scratch is cool. But the situation has a problem: the Boy likes to show the stuff we make to his friends at school. They have Chromebooks provided by the school. Chromebooks come with Chrome installed, and the kids can't install stuff, so Chrome is the only available browser. Chrome has a bug: one webpage can have at most about 500 distinct images. Google is aware of this bug and has been for a long time - they don't seem to have any intent to fix it. So, if you start using sprites with animations, for an RPG, say, you will quickly blow out this 500-image limit. One mob might easily have 30 or 40 frames.
So I had an idea.
The scratch screen is 480x360. What if I "blew up" a spritesheet so that each 16x16 image had a 480-pixel transparent pad between it and its left and right neighbors, and a 360-pixel transparent pad between it and its up and down neighbors? Then I could just load one image - the exploded spritesheet - and when I drew it I would set the offset so that the one image I wanted was at the screen coordinates I wanted. Because of the pads, all of the other images would necessarily be off the screen.
So I wrote a C program to call ImageMagick programs to explode the spritesheet, and that worked fine. The exploded spritesheet is about 9000 x 6000 pixels, but it's only 90k. But then I tried to upload it and hit Scratch's image size limit, enforced on upload, which is like 900x700.
But (the forums said) you could defeat that by making an svg! You can tell it the svg size is whatever pixels, it's stroked. Sure, it's 900 x 700 with a lot of tiny little bears in different poses, each smaller than a pixel.
Unfortunately automated png-to-svg conversion is not something current technology has really solved, or at least not adobe's online converter. It turned all of my bears into little brown smears.
My next plan is to bypass Scratch's image upload size limiter by exporting my scratch program, unzipping it, inserting the image directly in there, rezipping it, and reuploading. I have had some luck with this sort of thing before. But I am about out of energy for this project for today so I thought instead I would write about it on here.

A 65nm 36nJ/Decision Bio-inspired Temporal-Sparsity-Aware Digital Keyword Spotting IC with 0.6V Near-Threshold SRAM
Qinyu Chen, Kwantae Kim, Chang Gao, Sheng Zhou, Taekwang Jang, Tobi Delbruck, Shih-Chii Liu
https://arxiv.org/abs/2405.03905

A 65nm 36nJ/Decision Bio-inspired Temporal-Sparsity-Aware Digital Keyword Spotting IC with 0.6V Near-Threshold SRAM
This paper introduces, to the best of the authors' knowledge, the first fine-grained temporal sparsity-aware keyword spotting (KWS) IC leveraging temporal similarities between neighboring feature vectors extracted from input frames and network hidden states, eliminating unnecessary operations and memory accesses. This KWS IC, featuring a bio-inspired delta-gated recurrent neural network (ΔRNN) classifier, achieves an 11-class Google Speech Command Dataset (GSCD) KWS accuracy of 90.5% and energ…

Group-aware Parameter-efficient Updating for Content-Adaptive Neural Video Compression
Zhenghao Chen, Luping Zhou, Zhihao Hu, Dong Xu
https://arxiv.org/abs/2405.04274

Group-aware Parameter-efficient Updating for Content-Adaptive Neural Video Compression
Content-adaptive compression is crucial for enhancing the adaptability of the pre-trained neural codec for various contents. Although these methods have been very practical in neural image compression (NIC), their application in neural video compression (NVC) is still limited due to two main aspects: 1), video compression relies heavily on temporal redundancy, therefore updating just one or a few frames can lead to significant errors accumulating over time; 2), NVC frameworks are generally more…

D968,431 - issued to Netflix in 2022 for a design for a "display panel of a programmed computer system with a graphical user interface." #DesignPatents

Here's the writeup of the new #http2 continuation flood vulnerability from the researcher who discovered it: https://nowotarski.info/http2-continuation-flood-technical-details/…

#Apache #httpd 2.4.59 has been released. It addresses CVE-2024-27316 (DoS using #HTTP2 continuation frames) and a couple of low-severity response splitting vulnerabilities.

This https://arxiv.org/abs/2309.16250 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Fuzzy bi-Gödel modal logic and its paraconsistent relatives
We present the axiomatisation of the fuzzy bi-Gödel modal logic (formulated in the language containing $\triangle$ and treating the coimplication as a defined connective) and establish its PSpace-completeness. We also consider its paraconsistent relatives defined on fuzzy frames with two valuations $e_1$ and $e_2$ standing for the support of truth and falsity, respectively, and equipped with \emph{two fuzzy relations} $R^+$ and $R^-$ used to determine supports of truth and falsity of modal for…

@… any idea why Ethernet BASE-T PHYs declare support for a certain size of jumbo frames? why would the PHY even care? I can't imagine clock recovery or the AFE caring much between "one 20k frame" and "two back-to-back 10k frames", so what gives?
is it just "we tested it with 10k frames and that's the only thing we'll …

Well, I guess I will be doing some OpenCV to track my ants from the recorded footage when I get the energy. Currently thinking about how to detect frames where ants are doing things

Optimizing Mobile-Friendly Viewport Prediction for Live 360-Degree Video Streaming
Lei Zhang, Tao Long, Weizhen Xu, Laizhong Cui, Jiangchuan Liu
https://arxiv.org/abs/2403.02693 <…

Optimizing Mobile-Friendly Viewport Prediction for Live 360-Degree Video Streaming
Viewport prediction is the crucial task for adaptive 360-degree video streaming, as the bitrate control algorithms usually require the knowledge of the user's viewing portions of the frames. Various methods are studied and adopted for viewport prediction from less accurate statistic tools to highly calibrated deep neural networks. Conventionally, it is difficult to implement sophisticated deep learning methods on mobile devices, which have limited computation capability. In this work, we propos…

Dual Mean-Teacher: An Unbiased Semi-Supervised Framework for Audio-Visual Source Localization
Yuxin Guo, Shijie Ma, Hu Su, Zhiqing Wang, Yuhao Zhao, Wei Zou, Siyang Sun, Yun Zheng
https://arxiv.org/abs/2403.03145

Dual Mean-Teacher: An Unbiased Semi-Supervised Framework for Audio-Visual Source Localization
Audio-Visual Source Localization (AVSL) aims to locate sounding objects within video frames given the paired audio clips. Existing methods predominantly rely on self-supervised contrastive learning of audio-visual correspondence. Without any bounding-box annotations, they struggle to achieve precise localization, especially for small objects, and suffer from blurry boundaries and false positives. Moreover, the naive semi-supervised method is poor in fully leveraging the information of abundant …

A BiRGAT Model for Multi-intent Spoken Language Understanding with Hierarchical Semantic Frames
Hongshen Xu, Ruisheng Cao, Su Zhu, Sheng Jiang, Hanchong Zhang, Lu Chen, Kai Yu
https://arxiv.org/abs/2402.18258

A BiRGAT Model for Multi-intent Spoken Language Understanding with Hierarchical Semantic Frames
Previous work on spoken language understanding (SLU) mainly focuses on single-intent settings, where each input utterance merely contains one user intent. This configuration significantly limits the surface form of user utterances and the capacity of output semantics. In this work, we first propose a Multi-Intent dataset which is collected from a realistic in-Vehicle dialogue System, called MIVS. The target semantic frame is organized in a 3-layer hierarchical structure to tackle the alignment …

#Framed #720
🎥 🟥 🟥 🟩 ⬛ ⬛ ⬛
https://framed.wtf

This https://arxiv.org/abs/2402.03134 has been replaced.
link: https://scholar.google.com/scholar?q=a

The Patch Topology in Univalent Foundations
Stone locales together with continuous maps form a coreflective subcategory of spectral locales and perfect maps. A proof in the internal language of an elementary topos was previously given by the second-named author. This proof can be easily translated to univalent type theory using resizing axioms. In this work, we show how to achieve such a translation without resizing axioms, by working with large and locally small frames with small bases. This requires predicative reformulations of severa…

{nplyr} has helper functions to work on nested dataframes: #rstats #datascience

Joint Reference Frame Synthesis and Post Filter Enhancement for Versatile Video Coding
Weijie Bao, Yuantong Zhang, Jianghao Jia, Zhenzhong Chen, Shan Liu
https://arxiv.org/abs/2404.18058 https://arxiv.org/pdf/2404.18058
arXiv:2404.18058v1 Announce Type: new
Abstract: This paper presents the joint reference frame synthesis (RFS) and post-processing filter enhancement (PFE) for Versatile Video Coding (VVC), aiming to explore the combination of different neural network-based video coding (NNVC) tools to better utilize the hierarchical bi-directional coding structure of VVC. Both RFS and PFE utilize the Space-Time Enhancement Network (STENet), which receives two input frames with artifacts and produces two enhanced frames with suppressed artifacts, along with an intermediate synthesized frame. STENet comprises two pipelines, the synthesis pipeline and the enhancement pipeline, tailored for different purposes. During RFS, two reconstructed frames are sent into STENet's synthesis pipeline to synthesize a virtual reference frame, similar to the current to-be-coded frame. The synthesized frame serves as an additional reference frame inserted into the reference picture list (RPL). During PFE, two reconstructed frames are fed into STENet's enhancement pipeline to alleviate their artifacts and distortions, resulting in enhanced frames with reduced artifacts and distortions. To reduce inference complexity, we propose joint inference of RFS and PFE (JISE), achieved through a single execution of STENet. Integrated into the VVC reference software VTM-15.0, RFS, PFE, and JISE are coordinated within a novel Space-Time Enhancement Window (STEW) under Random Access (RA) configuration. The proposed method could achieve -7.34%/-17.21%/-16.65% PSNR-based BD-rate on average for three components under RA configuration.

Still a lot of cool utilitarian architecture all over LA. I love how the windows reflect the sunlight on this one.
#architecture #urbanphotography #losangeles

FE-DeTr: Keypoint Detection and Tracking in Low-quality Image Frames with Events
Xiangyuan Wang, Kuangyi Chen, Wen Yang, Lei Yu, Yannan Xing, Huai Yu
https://arxiv.org/abs/2403.11662

FE-DeTr: Keypoint Detection and Tracking in Low-quality Image Frames with Events
Keypoint detection and tracking in traditional image frames are often compromised by image quality issues such as motion blur and extreme lighting conditions. Event cameras offer potential solutions to these challenges by virtue of their high temporal resolution and high dynamic range. However, they have limited performance in practical applications due to their inherent noise in event data. This paper advocates fusing the complementary information from image frames and event streams to achieve…

This https://arxiv.org/abs/2303.00443 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Pervin spaces and Frith frames: bitopological aspects and completion
A Pervin space is a set equipped with a bounded sublattice of its powerset, while its pointfree version, called Frith frame, consists of a frame equipped with a generating bounded sublattice. It is known that the dual adjunction between topological spaces and frames extends to a dual adjunction between Pervin spaces and Frith frames, and that the latter may be seen as representatives of certain quasi-uniform structures. As such, they have an underlying bitopological structure and inherit a natu…

Series D, Episode 04 - Stardrive
DAYNA: [Disbelieving laugh] What, at ten thousand frames per second? It'll take us hours.
AVON: So?
https://blake.torpidity.net/s/404/121 📺 B7B3

Meta's Ray-Ban Smart Glasses get support for video calling via WhatsApp and Messenger, Apple Music compatibility, and a new frame style (Victoria Song/The Verge)
https://www.theverge.com/2024/4/23/24138228/ray-ban-meta-smart-glas…

The Ray-Ban Meta Smart Glasses get video calling, Apple Music, and a new style
Meta announced several updates for the Ray-Ban Meta Smart Glasses. There are new cat-eye frames, Apple Music compatibility, video calling, and a multimodal AI rollout.

This https://arxiv.org/abs/2403.02332 has been replaced.
link: https://scholar.google.com/scholar?q=a

UniCtrl: Improving the Spatiotemporal Consistency of Text-to-Video Diffusion Models via Training-Free Unified Attention Control
Video Diffusion Models have been developed for video generation, usually integrating text and image conditioning to enhance control over the generated content. Despite the progress, ensuring consistency across frames remains a challenge, particularly when using text prompts as control conditions. To address this problem, we introduce UniCtrl, a novel, plug-and-play method that is universally applicable to improve the spatiotemporal consistency and motion diversity of videos generated by text-to…

Missiles hit Kyiv seconds after air raid alert, leaving people no time to shelter: https://benborges.xyz/2024/03/25/missiles-hit-kyiv.html

This https://arxiv.org/abs/2310.09539 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_grqc_…

On the canonical equivalence between Jordan and Einstein frames
A longstanding issue is the classical equivalence between the Jordan and the Einstein frames, which is considered just a field redefinition of the metric tensor and the scalar field. In this work, based on the previous result that the Hamiltonian transformations from the Jordan to the Einstein frame are not canonical on the extended phase space, we study the possibility of the existence of canonical transformations. We show that on the reduced phase space -- defined by suitable gauge fixing of …

The effect of frames on engagement with quantum technology
Aletta L. Meinsma, Casper J. Albers, Pieter Vermaas, Ionica Smeets, Julia Cramer
https://arxiv.org/abs/2404.14104

The effect of frames on engagement with quantum technology
Quantum technology is predicted to have a significant impact on society once it matures. This study (n = 637 adults representative of the Dutch population) examined the effect of different frames on engagement - specifically, information seeking, internal efficacy, general interest and perceived knowledge - with quantum technology. The different frames were: enigmatic, explaining quantum physics, benefit, risk and balanced. Results indicated that framing quantum as enigmatic does not affect eng…

These dudes captured the speed of light on camera (10 trillion frames per second!)
#science

The Slow Mo guys use camera to capture light as it travels
​"The light is moving a million times faster than a bullet.”

the reason they tell you not to use vr if youre epileptic is not actually because of the games, it's because the software is all dogshit and there's always the chance that oculus link will start sending alternating black and white frames 120 times a second to your head mounted display

Quantum reference frames, measurement schemes and the type of local algebras in quantum field theory
Christopher J. Fewster, Daan W. Janssen, Leon Deryck Loveridge, Kasia Rejzner, James Waldron
https://arxiv.org/abs/2403.11973

Quantum reference frames, measurement schemes and the type of local algebras in quantum field theory
We develop an operational framework, combining relativistic quantum measurement theory with quantum reference frames (QRFs), in which local measurements of a quantum field on a background with symmetries are performed relative to a QRF. This yields a joint algebra of quantum-field and reference-frame observables that is invariant under the natural action of the group of spacetime isometries. For the appropriate class of quantum reference frames, this algebra is parameterised in terms of crossed…

Kernel theorems for operators on co-orbit spaces associated with localised frames
Dimitri Bytchenkoff, Michael Speckbacher, Peter Balazs
https://arxiv.org/abs/2402.18367

Kernel theorems for operators on co-orbit spaces associated with localised frames
Kernel theorems, in general, provide a convenient representation of bounded linear operators. For the operator acting on a concrete function space, this means that its action on any element of the space can be expressed as a generalised integral operator, in a way reminiscent of the matrix representation of linear operators acting on finite dimensional vector spaces. We prove kernel theorems for bounded linear operators acting on co-orbit spaces associated with localised frames. Our two main re…

"In this way “AI” is deeply dehumanizing: Making the spaces and opportunities for people to grow and be human smaller and smaller. Applying a straitjacket of past mediocrity to our minds and spirits.
And that is what is being booed: The salespeople of mediocrity who’ve made it their mission to speak lies from power. The lie that only tech can and will save us. The lie that a bit of statistics and colonial, mostly white, mostly western data is gonna create a brilliant future. The l…

Smashing Frames
While the crowd at sxsw2024 booing a sizzle reel of people either promising the beauty of the future "AI" will bring or claiming it to be "without alternative" is funny and went viral for all the right reasons, this event speaks to a deeper shift in perception. #ai #genAI #luddism

{nplyr} has helper functions to work on nested dataframes: #rstats #datascience

This https://arxiv.org/abs/2310.04372 has been replaced.
link: https://scholar.google.com/scholar?q=a

Rotation Curve Fitting Model
One key piece of evidence for dark matter is the flat rotation curve problem: the disagreement between measured galactic rotation curves and their luminous mass. A novel solution to this problem is presented here. A model of relativistic frame effects on Doppler shifts due to the slightly curved frames of an emitting galaxy and the Milky Way is derived. This model predicts observed Doppler shifted spectra (in excess of the luminous mass) based only on the observed luminous matter profile and on…

This https://arxiv.org/abs/2210.06342 has been replaced.
link: https://scholar.google.com/scholar?q=a

Derivation of generalized Einstein's equations of gravitation in some non-inertial reference frames based on the theory of vacuum mechanics
When solving the Einstein's equations for an isolated system of masses, V. Fock introduces harmonic reference frame and obtains an unambiguous solution. Further, he concludes that there exists a harmonic reference frame which is determined uniquely apart from a Lorentz transformation if suitable supplementary conditions are imposed. It is known that wave equations keep the same form under Lorentz transformations. Thus, we speculate that Fock's special harmonic reference frames may have provided…

Today I am very confused about how the bird detector is failing to spot birds on the video stream but if I run it against the analysed frames (which are saved out in debug mode) using the same model, code, etc., it finds them.

"AI" isn't going to take over the world until it's reliable and going off my experiences with that, it's a long way off.

(and that's not even getting into the inability to use different models because REASONS)

This https://arxiv.org/abs/2308.02928 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

Causal and stable first-order chiral hydrodynamics
We derive the set of inequalities that is necessary and sufficient for nonlinear causality and linear stability of first-order relativistic hydrodynamics with either a $U(1)_V$ conserved current or a $U(1)_A$ current with a chiral anomaly or both. Our results apply to generic hydrodynamic frames in which no relations among the transport parameters are imposed. Furthermore, our analysis yields, to the best of our knowledge, the first theory of viscous chiral hydrodynamics proven to be causal and…

This https://arxiv.org/abs/2311.14018 has been replaced.
initial toot: https://mastoxiv.page/@a…

Fabrication and extreme micromechanics of additive metal microarchitectures
The mechanical performance of metallic metamaterials with 3-dimensional solid frames is typically a combination of the geometrical effect ("architecture") and the characteristic size effects of the base material ("microstructure"). In this study, for the first time, the temperature- and rate-dependent mechanical response of copper microlattices has been investigated. The microlattices were fabricated via a localized electrodeposition in liquid (LEL) process which enables high-precision additive…

New study
Safeguarding the Peaceful Transfer of Power:
Pro-Democracy Electoral Frames and Journalist Coverage of Election Deniers During the 2022 U.S. Midterm Elections
https://journals.sagepub.com/doi/10.1177/19401612241235819
Heesoo Jang a…

https://nowotarski.info/http2-continuation-flood-technical-details/ - HTTP/2 CONTINUATION flood denial of service vulnerability.

lolsob somehow I managed to fuck up a Final Cut project so hard that certain clips are listed as “No Data” & exporting crashed a billion times due to corrupt frames (after 5–13 minutes, natch). also the background rendering made the project file 🎈 infinitely so I had to disable it (noticed it @ ~700 GB). dunno how I brought this upon me since I’ve never seen that but seems like some unholy combination of multicam clips & composite clips 🥲 got it exported in the end but gosh is this c…

Autoreframe is good. But what if I want to make a reel of this sequence at 50p, and motionflow it to 60p to avoid judder on phones? Yes, you can do it manually. But warp stabilizers need to be manually redone, you may get black frames here and there, and also more prone to exporting errors. #PremierePro

It gets fascinating from here.
“Lamont’s team evaluated coral reef restoration efforts done through the MARS Coral Reef Restoration Program on the coast of Indonesia and found that planting corals on a network of sand-coated steel frames brought a completely dead reef back to life in just four years.“
htt…

Seeding steel frames brings destroyed coral reefs back to life
It won't help with heat-driven bleaching, but other human damage can be fixed.

I started wearing glasses when I was 9 yrs old. I wasn’t allowed thin metal frames (which were relatively “cool” at that time) bc they were expensive—I had to settle for slightly pearlescent pink cat-eye glasses (they were cheapest*). They were EXTREMELY uncool then, but apparently, they’re now on trend! #IWasSimply50YearsAheadOfMyTime

VERA

Self-adhesivity in lattices of abstract conditional independence models
Tobias Boege, Janneke H. Bolt, Milan Studen\'y
https://arxiv.org/abs/2402.14053

Self-adhesivity in lattices of abstract conditional independence models
We introduce an algebraic concept of the frame for abstract conditional independence (CI) models, together with basic operations with respect to which such a frame should be closed: copying and marginalization. Three standard examples of such frames are (discrete) probabilistic CI structures, semi-graphoids and structural semi-graphoids. We concentrate on those frames which are closed under the operation of set-theoretical intersection because, for these, the respective families of CI models ar…

Equi-affine minimal-degree moving frames for polynomial curves
Hoon Hong, Irina A. Kogan
https://arxiv.org/abs/2402.06610 https://arx…

Equi-affine minimal-degree moving frames for polynomial curves
We develop a theory and an algorithm for constructing minimal-degree polynomial moving frames for polynomial curves in an affine space. The algorithm is equivariant under volume-preserving affine transformations of the ambient space and the parameter shifts. We show that any matrix-completion algorithm can be turned into an equivariant moving frame algorithm via an equivariantization procedure that we develop. We prove that if a matrix-completion algorithm is of minimal degree then so is the re…

So much to do, but can't stop watching & hacking on this pseudo fluid sim every now & then... 🤩 Probably will develop this further into a tutorial for #Animation …

DSL to define shader code in TypeScript and cross-compile to GLSL, JS and other targets

Tight Frames Generated By A Graph Short-Time Fourier Transform
Martin Buck, Kasso Okoudjou
https://arxiv.org/abs/2402.15902 https://a…

Tight Frames Generated By A Graph Short-Time Fourier Transform
A graph short-time Fourier transform is defined using the eigenvectors of the graph Laplacian and a graph heat kernel as a window parametrized by a non-negative time parameter $t$. We show that the corresponding Gabor-like system forms a frame for $\mathbb{C}^d$ and give a description of the spectrum of the corresponding frame operator in terms of the graph heat kernel and the spectrum of the underlying graph Laplacian. For two classes of algebraic graphs, we prove the frame is tight and indepe…

FE-DeTr: Keypoint Detection and Tracking in Low-quality Image Frames with Events
Xiangyuan Wang, Kuangyi Chen, Wen Yang, Lei Yu, Yannan Xing, Huai Yu
https://arxiv.org/abs/2403.11662

FE-DeTr: Keypoint Detection and Tracking in Low-quality Image Frames with Events
Keypoint detection and tracking in traditional image frames are often compromised by image quality issues such as motion blur and extreme lighting conditions. Event cameras offer potential solutions to these challenges by virtue of their high temporal resolution and high dynamic range. However, they have limited performance in practical applications due to their inherent noise in event data. This paper advocates fusing the complementary information from image frames and event streams to achieve…

Series D, Episode 04 - Stardrive
DAYNA: [Disbelieving laugh] What, at ten thousand frames per second? It'll take us hours.
AVON: So?
https://blake.torpidity.net/s/404/121 📺 B7B3

This https://arxiv.org/abs/2404.01518 has been replaced.
link: https://scholar.google.com/scholar?q=a

Temporally Consistent Unbalanced Optimal Transport for Unsupervised Action Segmentation
We propose a novel approach to the action segmentation task for long, untrimmed videos, based on solving an optimal transport problem. By encoding a temporal consistency prior into a Gromov-Wasserstein problem, we are able to decode a temporally consistent segmentation from a noisy affinity/matching cost matrix between video frames and action classes. Unlike previous approaches, our method does not require knowing the action order for a video to attain temporal consistency. Furthermore, our res…

This https://arxiv.org/abs/2308.01627 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Semilattice base hierarchy for frames and its topological ramifications
We develop a hierarchy of semilattice bases (S-bases) for frames. For a given (unbounded) meet-semilattice $A$, we analyze the interval in the coframe of sublocales of the frame of downsets of $A$ formed by all frames with the S-base $A$. We give an explicit description of the nuclei associated with these sublocales. We study various degrees of completeness of $A$, which generalize the concepts of extremally disconnected and basically disconnected frames. We also introduce the concepts of D-bas…

Spectral 2-actions, foams, and frames in the spectrification of Khovanov arc algebras
Anne Dranowski, Meng Guo, Aaron Lauda, Andrew Manion
https://arxiv.org/abs/2402.11368

Spectral 2-actions, foams, and frames in the spectrification of Khovanov arc algebras
Leveraging skew Howe duality, we show that Lawson-Lipshitz-Sarkar's spectrification of Khovanov's arc algebra gives rise to 2-representations of categorified quantum groups over $\mathbb{F}_2$ that we call spectral 2-representations. These spectral 2-representations take values in the homotopy category of spectral bimodules over spectral categories. We view this as a step toward a higher representation theoretic interpretation of spectral enhancements in link homology. A technical innovation in…

Homology of Moment Frames
Zoe Cooperband, Allan McRobie, Cameron Millar, Bernd Schulze
https://arxiv.org/abs/2404.07184 https://arxiv…

Homology of Moment Frames
Using homological techniques we show that a pin-anchored frame that involves only moments and shears provides a conceptual bridge between the statics of moment frames and the kinematics of pin-jointed trusses. One immediate result is a long exact sequence whose alternating sum of dimensions gives a novel counting rule for self-stresses and mechanisms. This combines the Maxwell-Calladine count for pin-jointed trusses with the circuit rank (first Betti number) associated with self-stresses in mom…

Monadic aspects of the ideal lattice functor on the category of distributive lattices
Ando Razafindrakoto
https://arxiv.org/abs/2404.19642 https://<…

Monadic aspects of the ideal lattice functor on the category of distributive lattices
It is known that the construction of the frame of ideals from a distributive lattice induces a monad whose algebras are precisely the frames and frame homomorphisms. Using the Fakir construction of an idempotent approximation of a monad, we extend B. Jacobs' results on lax idempotent monads and show that the sequence of monads and comonads generated by successive iterations of this ideal functor on its algebras and coalgebras do not strictly lead to a new category. We further extend this result…

This https://arxiv.org/abs/2403.01598 has been replaced.
link: https://scholar.google.com/scholar?q=a

APISR: Anime Production Inspired Real-World Anime Super-Resolution
While real-world anime super-resolution (SR) has gained increasing attention in the SR community, existing methods still adopt techniques from the photorealistic domain. In this paper, we analyze the anime production workflow and rethink how to use characteristics of it for the sake of the real-world anime SR. First, we argue that video networks and datasets are not necessary for anime SR due to the repetition use of hand-drawing frames. Instead, we propose an anime image collection pipeline by…

thoughts on the openai Sora video examples
- it doesn't understand 3d, just fakes it, same way image generators do. (these are all diffusion models, 2d NN architecture trained on 2d image data. Sora is aware of multiple frames, so it's weakly 2d time)
- it's bad at following prompts. several prompts describe many things not in the output, which feels like it just reproduced from memory something "close enough"
- these critiques are like complaining that a…

This https://arxiv.org/abs/2404.01518 has been replaced.
link: https://scholar.google.com/scholar?q=a

Temporally Consistent Unbalanced Optimal Transport for Unsupervised Action Segmentation
We propose a novel approach to the action segmentation task for long, untrimmed videos, based on solving an optimal transport problem. By encoding a temporal consistency prior into a Gromov-Wasserstein problem, we are able to decode a temporally consistent segmentation from a noisy affinity/matching cost matrix between video frames and action classes. Unlike previous approaches, our method does not require knowing the action order for a video to attain temporal consistency. Furthermore, our res…

The growing backlash against AI
While the crowd at sxsw2024 booing a sizzle reel of people either promising the beauty of the future "AI" will bring or claiming it to be "without alternative" is funny and went viral for all the right reasons, this event speaks to a deeper shift in perception. #ai

Smashing Frames
While the crowd at sxsw2024 booing a sizzle reel of people either promising the beauty of the future "AI" will bring or claiming it to be "without alternative" is funny and went viral for all the right reasons, this event speaks to a deeper shift in perception. #ai #genAI #luddism

Do you need better performance than what the standard #tidyverse functions have? {collapse} might be worth a look: https://sebkrantz.github.io/collapse/

This https://arxiv.org/abs/2303.03870 has been replaced.
link: https://scholar.google.com/scholar?q=a

DanceAnyWay: Synthesizing Beat-Guided 3D Dances with Randomized Temporal Contrastive Learning
We present DanceAnyWay, a generative learning method to synthesize beat-guided dances of 3D human characters synchronized with music. Our method learns to disentangle the dance movements at the beat frames from the dance movements at all the remaining frames by operating at two hierarchical levels. At the coarser "beat" level, it encodes the rhythm, pitch, and melody information of the input music via dedicated feature representations only at the beat frames. It leverages them to synthesize the…

This https://arxiv.org/abs/2311.14018 has been replaced.
initial toot: https://mastoxiv.page/@a…

Fabrication and extreme micromechanics of additive metal microarchitectures
The mechanical performance of metallic metamaterials with 3-dimensional solid frames is typically a combination of the geometrical effect ("architecture") and the characteristic size effects of the base material ("microstructure"). In this study, for the first time, the temperature- and rate-dependent mechanical response of copper microlattices has been investigated. The microlattices were fabricated via a localized electrodeposition in liquid (LEL) process which enables high-precision additive…

This https://arxiv.org/abs/2308.01627 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Semilattice base hierarchy for frames and its topological ramifications
We develop a hierarchy of semilattice bases (S-bases) for frames. For a given (unbounded) meet-semilattice $A$, we analyze the interval in the coframe of sublocales of the frame of downsets of $A$ formed by all frames with the S-base $A$. We give an explicit description of the nuclei associated with these sublocales. We study various degrees of completeness of $A$, which generalize the concepts of extremally disconnected and basically disconnected frames. We also introduce the concepts of D-bas…

MeshBrush: Painting the Anatomical Mesh with Neural Stylization for Endoscopy
John J. Han, Ayberk Acar, Nicholas Kavoussi, Jie Ying Wu
https://arxiv.org/abs/2404.02999

MeshBrush: Painting the Anatomical Mesh with Neural Stylization for Endoscopy
Style transfer is a promising approach to close the sim-to-real gap in medical endoscopy. Rendering realistic endoscopic videos by traversing pre-operative scans (such as MRI or CT) can generate realistic simulations as well as ground truth camera poses and depth maps. Although image-to-image (I2I) translation models such as CycleGAN perform well, they are unsuitable for video-to-video synthesis due to the lack of temporal consistency, resulting in artifacts between frames. We propose MeshBrush…

It gets fascinating from here.
“Lamont’s team evaluated coral reef restoration efforts done through the MARS Coral Reef Restoration Program on the coast of Indonesia and found that planting corals on a network of sand-coated steel frames brought a completely dead reef back to life in just four years.“
htt…

Seeding steel frames brings destroyed coral reefs back to life
It won't help with heat-driven bleaching, but other human damage can be fixed.

I started wearing glasses when I was 9 yrs old. I wasn’t allowed thin metal frames (which were relatively “cool” at that time) bc they were expensive—I had to settle for slightly pearlescent pink cat-eye glasses (they were cheapest*). They were EXTREMELY uncool then, but apparently, they’re now on trend! #IWasSimply50YearsAheadOfMyTime

VERA

STT: Stateful Tracking with Transformers for Autonomous Driving
Longlong Jing, Ruichi Yu, Xu Chen, Zhengli Zhao, Shiwei Sheng, Colin Graber, Qi Chen, Qinru Li, Shangxuan Wu, Han Deng, Sangjin Lee, Chris Sweeney, Qiurui He, Wei-Chih Hung, Tong He, Xingyi Zhou, Farshid Moussavi, Zijian Guo, Yin Zhou, Mingxing Tan, Weilong Yang, Congcong Li
https://

STT: Stateful Tracking with Transformers for Autonomous Driving
Tracking objects in three-dimensional space is critical for autonomous driving. To ensure safety while driving, the tracker must be able to reliably track objects across frames and accurately estimate their states such as velocity and acceleration in the present. Existing works frequently focus on the association task while either neglecting the model performance on state estimation or deploying complex heuristics to predict the states. In this paper, we propose STT, a Stateful Tracking model b…

Weaving Riesz Bases
Carlos Cabrelli, Ursula Molter, Felipe Negreira
https://arxiv.org/abs/2404.02229 https://arxiv.org/pdf/2404.02229…

Weaving Riesz Bases
This paper explores woven frames in separable Hilbert spaces with an initial focus on the finite-dimensional case. We begin by simplifying the problem to bases, for which we obtain a unique characterization. We establish a condition that is both necessary and sufficient for vector reconstruction, which applies to Fourier matrices. Furthermore, we show that these characterizations are still valid in the infinite-dimensional case, for Riesz bases. Finally, we obtain several results for weaving Ri…

Inexplicably, Channel 4's streaming football coverage is even worse than ITV's. Every one to two seconds, there's a micro-pause like the stream is backed up and then it does a blurry jerk forward for a handful of frames. Makes watching football (with its long sweeping camera movements) almost motion sickness inducing.

#Football

Quantum in the media: A content analysis of frames in Dutch newspapers
Aletta Lucia Meinsma, Thomas Rothe, W. Gudrun Reijnierse, Ionica Smeets, Julia Cramer
https://arxiv.org/abs/2403.05597

Quantum in the media: A content analysis of frames in Dutch newspapers
Quantum technology is expected to have an impact on society. Scientists warn against the use of certain frames because they may create barriers to effective science communication. We studied 385 Dutch newspaper articles for the use of these frames. Newspapers commonly explained quantum concepts when mentioning quantum technology. They also regularly framed quantum technology as beneficial and enigmatic, often in prominent positions of the articles. The economic development/competitiveness frame…

#Framed #705
🎥 🟥 🟥 🟩 ⬛ ⬛ ⬛
https://framed.wtf

Modal reduction principles: a parametric shift to graphs
Willem Conradie, Krishna Manoorkar, Alessandra Palmigiano, Mattia Panettiere
https://arxiv.org/abs/2403.14026

Modal reduction principles: a parametric shift to graphs
Graph-based frames have been introduced as a logical framework which internalizes an inherent boundary to knowability. They also support the interpretation of lattice-based (modal) logics as hyper-constructive logics of evidential reasoning. Conceptually, the present paper proposes graph-based frames as a formal framework suitable for generalizing Pawlak's rough set theory to a setting in which inherent limits to knowability need to be considered. Technically, the present paper establishes syst…

I did not know about ggplot_build() before. It can come in handy in situations where you want to access computed metrics of a #ggplot. https://ggplot2.tidyverse.org/reference/ggplot…

Inexplicably, Channel 4's streaming football coverage is even worse than ITV's. Every one to two seconds, there's a micro-pause like the stream is backed up and then it does a blurry jerk forward for a handful of frames. Makes watching football (with its long sweeping camera movements) almost motion sickness inducing.

#Football

This https://arxiv.org/abs/2207.02835 has been replaced.
link: https://scholar.google.com/scholar?q=a

Bouncing and collapsing universes dual to late-time cosmological models
We use the Jordan frame-Einstein frame correspondence to explore dual universes with contrasting cosmological evolutions. We study the mapping between Einstein and Jordan frames where the Einstein frame universe describes the late-time evolution of the physical universe, which is driven by dark energy and non-relativistic matter. The Brans-Dicke theory of gravity is considered to be the dual scalar-tensor theory in the Jordan frame. We show that an Einstein frame universe, with cosmological evo…

Audio-Visual Traffic Light State Detection for Urban Robots
Sagar Gupta, Akansel Cosgun
https://arxiv.org/abs/2404.19281 https://arxi…

Audio-Visual Traffic Light State Detection for Urban Robots
We present a multimodal traffic light state detection using vision and sound, from the viewpoint of a quadruped robot navigating in urban settings. This is a challenging problem because of the visual occlusions and noise from robot locomotion. Our method combines features from raw audio with the ratios of red and green pixels within bounding boxes, identified by established vision-based detectors. The fusion method aggregates features across multiple frames in a given timeframe, increasing robu…

This https://arxiv.org/abs/2306.06745 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Algebraic Frames in Priestley duality
We characterize Priestley spaces of algebraic, arithmetic, coherent, and Stone frames. As a corollary, we derive the well-known dual equivalences in pointfree topology involving various categories of algebraic frames.

This https://arxiv.org/abs/2306.06745 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Algebraic Frames in Priestley duality
We characterize Priestley spaces of algebraic, arithmetic, coherent, and Stone frames. As a corollary, we derive the well-known dual equivalences in pointfree topology involving various categories of algebraic frames.

Benchmarking the Robustness of Temporal Action Detection Models Against Temporal Corruptions
Runhao Zeng, Xiaoyong Chen, Jiaming Liang, Huisi Wu, Guangzhong Cao, Yong Guo
https://arxiv.org/abs/2403.20254

Benchmarking the Robustness of Temporal Action Detection Models Against Temporal Corruptions
Temporal action detection (TAD) aims to locate action positions and recognize action categories in long-term untrimmed videos. Although many methods have achieved promising results, their robustness has not been thoroughly studied. In practice, we observe that temporal information in videos can be occasionally corrupted, such as missing or blurred frames. Interestingly, existing methods often incur a significant performance drop even if only one frame is affected. To formally evaluate the robus…

This https://arxiv.org/abs/2310.16139 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_ees…

Pix2HDR -- A pixel-wise acquisition and deep learning-based synthesis approach for high-speed HDR videos
Accurately capturing dynamic scenes with wide-ranging motion and light intensity is crucial for many vision applications. However, acquiring high-speed high dynamic range (HDR) video is challenging because the camera's frame rate restricts its dynamic range. Existing methods sacrifice speed to acquire multi-exposure frames. Yet, misaligned motion in these frames can still pose complications for HDR fusion algorithms, resulting in artifacts. Instead of frame-based exposures, we sample the videos…

On scalable $K$-frames and a version of Lax-Milgram theorem
F. Javadi, M. J. Mehdipour
https://arxiv.org/abs/2402.07699 https://arxiv…

On scalable $K$-frames and a version of Lax-Milgram theorem
In this paper, we first prove a theorem by a little modification on the Lax-Milgram theorem. Then, using $K$-frames, we obtain lower and upper bounds for the results obtained from this theorem. Also, we present some methods for the characterization of scalable $K$-frames. Finally, we introduce piecewise scalable $K$-frames and give necessary and sufficient conditions for a $K$-frame to be piecewise scalable.

This https://arxiv.org/abs/2208.02355 has been replaced.
link: https://scholar.google.com/scholar?q=a

CAVE: Cerebral Artery-Vein Segmentation in Digital Subtraction Angiography
Cerebral X-ray digital subtraction angiography (DSA) is a widely used imaging technique in patients with neurovascular disease, allowing for vessel and flow visualization with high spatio-temporal resolution. Automatic artery-vein segmentation in DSA plays a fundamental role in vascular analysis with quantitative biomarker extraction, facilitating a wide range of clinical applications. The widely adopted U-Net applied on static DSA frames often struggles with disentangling vessels from subtract…

This https://arxiv.org/abs/2311.18095 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

On non-archimedean frames
In this investigation, we introduce the class of non-archimedean frames in spirit with the topological notion of non-archimedean spaces. We explore various properties of these frames - particularly their spaciality. We attach a base that constitutes a tree to each non-archimedean frame, and then we observe that every non-archimedean frame is a quotient of the frame of opens of the tree's branch space. Moreover, we give a partial answer to when these frames are canonically isomorphic; this leads…

This https://arxiv.org/abs/2402.14392 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csCV_…

Reading Relevant Feature from Global Representation Memory for Visual Object Tracking
Reference features from a template or historical frames are crucial for visual object tracking. Prior works utilize all features from a fixed template or memory for visual object tracking. However, due to the dynamic nature of videos, the required reference historical information for different search regions at different time steps is also inconsistent. Therefore, using all features in the template and memory can lead to redundancy and impair tracking performance. To alleviate this issue, we pr…

This https://arxiv.org/abs/2311.10788 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csCV_…

Efficient Temporally-Aware DeepFake Detection using H.264 Motion Vectors
Video DeepFakes are fake media created with Deep Learning (DL) that manipulate a person's expression or identity. Most current DeepFake detection methods analyze each frame independently, ignoring inconsistencies and unnatural movements between frames. Some newer methods employ optical flow models to capture this temporal aspect, but they are computationally expensive. In contrast, we propose using the related but often ignored Motion Vectors (MVs) and Information Masks (IMs) from the H.264 vid…

This https://arxiv.org/abs/2404.06351 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csCV_…

HPNet: Dynamic Trajectory Forecasting with Historical Prediction Attention
Predicting the trajectories of road agents is essential for autonomous driving systems. The recent mainstream methods follow a static paradigm, which predicts the future trajectory by using a fixed duration of historical frames. These methods make the predictions independently even at adjacent time steps, which leads to potential instability and temporal inconsistency. As successive time steps have largely overlapping historical frames, their forecasting should have intrinsic correlation, such …

Reading Relevant Feature from Global Representation Memory for Visual Object Tracking
Xinyu Zhou, Pinxue Guo, Lingyi Hong, Jinglun Li, Wei Zhang, Weifeng Ge, Wenqiang Zhang
https://arxiv.org/abs/2402.14392

Reading Relevant Feature from Global Representation Memory for Visual Object Tracking
Reference features from a template or historical frames are crucial for visual object tracking. Prior works utilize all features from a fixed template or memory for visual object tracking. However, due to the dynamic nature of videos, the required reference historical information for different search regions at different time steps is also inconsistent. Therefore, using all features in the template and memory can lead to redundancy and impair tracking performance. To alleviate this issue, we pr…

This https://arxiv.org/abs/2306.06881 has been replaced.
link: https://scholar.google.com/scholar?q=a

Unmasking Deepfakes: Masked Autoencoding Spatiotemporal Transformers for Enhanced Video Forgery Detection
We present a novel approach for the detection of deepfake videos using a pair of vision transformers pre-trained by a self-supervised masked autoencoding setup. Our method consists of two distinct components, one of which focuses on learning spatial information from individual RGB frames of the video, while the other learns temporal consistency information from optical flow fields generated from consecutive frames. Unlike most approaches where pre-training is performed on a generic large corpus…

HPNet: Dynamic Trajectory Forecasting with Historical Prediction Attention
Xiaolong Tang, Meina Kan, Shiguang Shan, Zhilong Ji, Jinfeng Bai, Xilin Chen
https://arxiv.org/abs/2404.06351

HPNet: Dynamic Trajectory Forecasting with Historical Prediction Attention
Predicting the trajectories of road agents is essential for autonomous driving systems. The recent mainstream methods follow a static paradigm, which predicts the future trajectory by using a fixed duration of historical frames. These methods make the predictions independently even at adjacent time steps, which leads to potential instability and temporal inconsistency. As successive time steps have largely overlapping historical frames, their forecasting should have intrinsic correlation, such …