Tootfinder

This https://arxiv.org/abs/2403.07592 has been replaced.
link: https://scholar.google.com/scholar?q=a

Accurate Spatial Gene Expression Prediction by integrating Multi-resolution features
Recent advancements in Spatial Transcriptomics (ST) technology have facilitated detailed gene expression analysis within tissue contexts. However, the high costs and methodological limitations of ST necessitate a more robust predictive model. In response, this paper introduces TRIPLEX, a novel deep learning framework designed to predict spatial gene expression from Whole Slide Images (WSIs). TRIPLEX uniquely harnesses multi-resolution features, capturing cellular morphology at individual spots,…

XAV: A High-Performance Regular Expression Matching Engine for Packet Processing
Jincheng Zhong, Shuhui Chen, Chuan Yu
https://arxiv.org/abs/2403.16533 htt…

XAV: A High-Performance Regular Expression Matching Engine for Packet Processing
Regular expression matching is the core function of various network security applications such as network intrusion detection systems. With the network bandwidth increases, it is a great challenge to implement regular expression matching for line rate packet processing. To this end, a novel scheme named XAV targeting high-performance regular expression matching is proposed in this paper. XAV first employs anchor DFA to tackle the state explosion problem of DFA. Then based on anchor DFA, two tec…

The EU publishes draft election security guidelines aimed at platforms with 45M regional MAUs that are regulated under the DSA, ahead of elections in June (Natasha Lomas/TechCrunch)
https://techcrunch.com/2024/03/26/eu-election-security-guidance-for-vlo…

EU publishes election security guidance for social media giants and others in scope of DSA | TechCrunch
The European Union published draft election security guidelines Tuesday aimed at larger platforms with a legal duty to mitigate systemic risks like political deepfakes while also safeguarding freedom of expression.

🐖🪽 https://github.com/google/mtail/releases/tag/v3.0.0

Release v3.0.0 · google/mtail
Changelog 9a38264 doc: Fix a confusing regular expression in an example.

Bill Maher launches The Club Random Studios, a podcast network with a focus on "freedom of expression", and hires ex-ESPN anchor Sage Steele as its first host (Alex Weprin/The Hollywood Reporter)
https://www.hollywoodreporter.com/business

Bill Maher to Launch Podcast Network, Hires Ex-ESPN Anchor Sage Steele as First Host
"I am looking for people who are not talking point people," the HBO host tells THR of his new podcast venture.

Integrating Heterogeneous Gene Expression Data through Knowledge Graphs for Improving Diabetes Prediction
Rita T. Sousa, Heiko Paulheim
https://arxiv.org/abs/2404.14970

Integrating Heterogeneous Gene Expression Data through Knowledge Graphs for Improving Diabetes Prediction
Diabetes is a worldwide health issue affecting millions of people. Machine learning methods have shown promising results in improving diabetes prediction, particularly through the analysis of diverse data types, namely gene expression data. While gene expression data can provide valuable insights, challenges arise from the fact that the sample sizes in expression datasets are usually limited, and the data from different datasets with different gene expressions cannot be easily combined. This …

**Size matters...**
Imagine that there was only one Social Media site which provided the only viable forum for the public expression of political opinion. Whether or not the Constitution or the law allowed that site to censor legal speech, would it be right for it to do so?
I believe that, at some point, a site gains such a dominance over public discourse that it is right to regulate it. In a democracy, private control of public speech must be limited.

This https://arxiv.org/abs/2402.13248 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Explicit expressions for the gamma vector leading to connections to upper/lower bounds and structural properties
We find an explicit formula for the gamma vector in terms of the input polynomial in a way that extends it to arbitrary polynomials. More specifically, we find explicit linear combination in terms of coefficients of the input polynomial (using Catalan numbers and binomial coefficients) and an expression involving the derivative of the input polynomial. The first expression suggests connections to common Coxeter group/noncrossing partition structures in existing gamma positivity examples. In the…

Meaningless regular expression: [a-z] punk

Bleating 'woke' truly is the measure of unfathomably dumb. Like, 'never read a book, steal my money and abuse my vote,' dumb.
I don't always agree with Angry Joe, but occasionally, he earns my full respect, especially when the true fan in him brings him against the even angrier crowd, and he chooses not to pander. Notice his expression and the long pause he makes, as he tries to stay on topic when he mentions the "woke" tweets and comments about The Acolyt…

Build Gnome apps with Swift:
https://swift.org/blog/adwaita-swift/

Writing GNOME Apps with Swift
Swift is well-suited for creating user interfaces thanks to the clean syntax, static typing, and special features making code easier to write. Result builders, combined with Swift’s closure expression syntax, can significantly enhance code readability.

FRAP analysis Measuring biophysical kinetic parameters using image analysis
Sharva V Hiremath, Gregory T. Reeves, Cranos M. Williams
https://arxiv.org/abs/2402.16615

FRAP analysis Measuring biophysical kinetic parameters using image analysis
Understanding transcription factor dynamics is crucial for unraveling the regulatory mechanisms of gene expression that underpin cellular function and development. Measurements of transcription factor subcellular movement are essential for developing predictive models of gene expression. However, obtaining these quantitative measurements poses significant challenges due to the inherent variability of biological data and the need for high precision in tracking the movement and interaction of mol…

This https://arxiv.org/abs/2402.10400 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csCL_…

Chain of Logic: Rule-Based Reasoning with Large Language Models
Rule-based reasoning, a fundamental type of legal reasoning, enables us to draw conclusions by accurately applying a rule to a set of facts. We explore causal language models as rule-based reasoners, specifically with respect to compositional rules - rules consisting of multiple elements which form a complex logical expression. Reasoning about compositional rules is challenging because it requires multiple reasoning steps, and attending to the logical relationships between elements. We introduc…

This https://arxiv.org/abs/2403.01195 has been replaced.
link: https://scholar.google.com/scholar?q=a

Understanding Energy Level Structure Using Quantum Rubik's Cube
This study combines the quantum Rubik's Cube matrix with the Benalcazar Bernevig Hughes model, defines a matrix algorithm based on the reverse process of convolution, and constructs an expression for the quantum Rubik's Cube matrix and Hamiltonian. Furthermore, in order to make the operation of the quantum Rubik's Cube matrix clearer, we use a Josephus ring to draw a topological graph of the Rubik's Cube expansion. This article uses a quantum Rubik's Cube to calculate energy level transitions o…

A quaternion-based obtention of the angle between adjacent sides in the evolution of regular polygons of $M$ sides under the vortex filament equation
Fernando Chamizo, Francisco de la Hoz
https://arxiv.org/abs/2403.17758

A quaternion-based obtention of the angle between adjacent sides in the evolution of regular polygons of $M$ sides under the vortex filament equation
In this paper, using a quaternion formalism, we give a rigorous proof for the expression of the angle between adjacent sides in the skew polygons appearing at rational times in the evolution of regular polygons of $M$ sides under the vortex filament equation. More precisely, after transforming the rotation matrices that characterize those skew polygons into quaternions, we show that the products of those matrices can be expressed in terms of products of quaternions in a compact form, which enab…

This https://arxiv.org/abs/2402.12388 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csHC_…

EyeEcho: Continuous and Low-power Facial Expression Tracking on Glasses
In this paper, we introduce EyeEcho, a minimally-obtrusive acoustic sensing system designed to enable glasses to continuously monitor facial expressions. It utilizes two pairs of speakers and microphones mounted on glasses, to emit encoded inaudible acoustic signals directed towards the face, capturing subtle skin deformations associated with facial expressions. The reflected signals are processed through a customized machine-learning pipeline to estimate full facial movements. EyeEcho samples …

On AI music: "LET THEM TAKE THE MELODIES, THE SCALES, THE WAVEFORMS, THE TEMPORAL STRUCTURING OF SOUND AND FEED THEM INTO THEIR ALGORITHMS. THESE THINGS ARE NOT PRECIOUS - WE CAN PLUCK THEM FROM THE AIR BY LITERALLY PLUCKING THE AIR! THESE PRETTY VIBRATIONS ARE THE TINIEST PART OF WHAT MAKES MEANING IN MUSIC."
(Original title: THE MUSIC ABOLITIONIST PROVOCATION)

THE MUSIC ABOLITIONIST PROVOCATION
I can't remember exactly how long ago I wrote this, but I do remember it is the result of a coffee-fuelled expression of exasperation after reading yet another article about some kind of A.I.-driven startup tech bro claiming to 'solve' music. I enjoy writing manifestos because, just for

This https://arxiv.org/abs/2311.17993 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_grqc_…

Observational redshift from general spherically symmetric black holes
In this work, we obtain an expression for the total observational frequency shift of photons emitted by massive geodesic particles circularly orbiting a black hole in a general spherically symmetric background. Our general relations are presented in terms of the metric components and their derivatives that characterize the black hole parameters. As a concrete example of this general relativistic approach, a special case is studied by applying the formalism to a nonsingular black hole conformall…

This https://arxiv.org/abs/2401.00670 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_ees…

Hybrid physics-informed metabolic cybergenetics: process rates augmented with machine-learning surrogates informed by flux balance analysis
Metabolic cybergenetics is a promising concept that interfaces gene expression and cellular metabolism with computers for real-time dynamic metabolic control. The focus is on control at the transcriptional level, serving as a means to modulate intracellular metabolic fluxes. Recent strategies in this field have employed constraint-based dynamic models for process optimization, control, and estimation. However, this results in bilevel dynamic optimization problems, which pose considerable numeri…

Build Gnome apps with Swift:
https://swift.org/blog/adwaita-swift/

Writing GNOME Apps with Swift
Swift is well-suited for creating user interfaces thanks to the clean syntax, static typing, and special features making code easier to write. Result builders, combined with Swift’s closure expression syntax, can significantly enhance code readability.

Beyond Boolean networks, a multi-valued approach
J. Garc\'ia Galofre, M. P\'erez Mill\'an, A. Galarza Rial, R. Laubenbacher, A. Dickenstein
https://arxiv.org/abs/2404.16760

Beyond Boolean networks, a multi-valued approach
Boolean networks can be viewed as functions on the set of binary strings of a given length, described via logical rules. They were introduced as dynamic models into biology, in particular as logical models of intracellular regulatory networks involving genes, proteins, and metabolites. Since genes can have several modes of action, depending on their expression levels, binary variables are often not sufficiently rich, requiring the use of multi-valued networks instead. The steady state analysis …

Combinatorics of the integral closure of edge ideals of strong quasi-n-partite graphs
Monica La Barbiera, Roya Moghimipor
https://arxiv.org/abs/2403.16109 …

Combinatorics of the integral closure of edge ideals of strong quasi-n-partite graphs
Combinatorial properties of some ideals related to strong quasi-n-partites graphs are examined. We prove that the edge ideal of a strong quasi-n-partite graph is not integrally closed and we give an expression for its integral closure. Moreover, we are able to determine the structure of the ideals of vertex covers for the edge ideals associated to a strong quasi-n-partite graph.

This https://arxiv.org/abs/2307.14264 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csDS_…

A tight Monte-Carlo algorithm for Steiner Tree parameterized by clique-width
Recently, Hegerfeld and Kratsch [ESA 2023] obtained the first tight algorithmic results for hard connectivity problems parameterized by clique-width. Concretely, they gave one-sided error Monte-Carlo algorithms that given a $k$-clique-expression solve Connected Vertex Cover in time $6^kn^{O(1)}$ and Connected Dominating Set in time $5^kn^{O(1)}$. Moreover, under the Strong Exponential-Time Hypothesis (SETH) these results were showed to be tight. However, they leave open several important benchm…

This https://arxiv.org/abs/2402.13933 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_sta…

Powerful Large-scale Inference in High Dimensional Mediation Analysis
In genome-wide epigenetic studies, exposures (e.g., Single Nucleotide Polymorphisms) affect outcomes (e.g., gene expression) through intermediate variables such as DNA methylation. Mediation analysis offers a way to study these intermediate variables and identify the presence or absence of causal mediation effects. Testing for mediation effects lead to a composite null hypothesis. Existing methods like the Sobel's test or the Max-P test are often underpowered because 1) statistical inference is…

‘Cluelessly #Racist’: Joy Reid and Michael Steele Call Out Fox Personality Over Trump’s Sneakers
https://washingtoncurrent.substack.com/p/cluelessly-racist-black…

‘Cluelessly Racist’: Black TV Hosts Call Out Fox Personality Over Trump’s Sneakers
Republican Trump is hawking "ugly" $400 shoes sneakers 2024 election MSNBC Black voters racist Joy Reid Michael Steele Raymond Arroyo Fox News

The Grammarphobia Blog: ‘Dad wouldn’t have a bar of it’
"Q: Can you shed any light on the origin of the (mainly) Australian phrase “wouldn’t have a bar of it,” especially what “bar” is doing in there?
A: The expression “not to stand [or “have” or “want”] a bar of something” first appeared in Australian English in the early 20th century, according to Green’s Dictionary of Slang."

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…

Something the web interface in #Mastodon doesn't have but should is information about who posted something with a filtered expression in it.
I sometimes click on them just because I'm curious about who posted it, which kind of defeats the purpose of filtering in the first place.

Splitting methods for unbounded operators
Arieh Iserles, Karolina Kropielnicka
https://arxiv.org/abs/2403.15147 https://arxiv.org/pdf…

Splitting methods for unbounded operators
This paper considers computational methods that split a vector field into three components in the case when both the vector field and the split components might be unbounded. We first employ classical Taylor expansion which, after some algebra, results in an expression for a second-order splitting which, strictly speaking, makes sense only for bounded operators. Next, using an alternative approach, we derive an error expression and an error bound in the same setting which are however valid in t…

Pilot Study to Discover Candidate Biomarkers for Autism based on Perception and Production of Facial Expressions
Megan A. Witherow, Norou Diawara, Janice Keener, John W. Harrington, Khan M. Iftekharuddin
https://arxiv.org/abs/2404.16040

Pilot Study to Discover Candidate Biomarkers for Autism based on Perception and Production of Facial Expressions
Purpose: Facial expression production and perception in autism spectrum disorder (ASD) suggest potential presence of behavioral biomarkers that may stratify individuals on the spectrum into prognostic or treatment subgroups. Construct validity and group discriminability have been recommended as criteria for identification of candidate stratification biomarkers. Methods: In an online pilot study of 11 children and young adults diagnosed with ASD and 11 age- and gender-matched neurotypical (NT)…

Analytic expression of the DOS for a new model of 1d-potential and its random perturbation
Hakim Boumaza, Olivier Lafitte
https://arxiv.org/abs/2403.14453 …

Analytic expression of the DOS for a new model of 1d-potential and its random perturbation
In this article we present comparisons between the spectrum of a one-dimensional Schrödinger operator for a particular periodic potential and for its restriction to a finite number of sites. We deduce from this finite, but large, number of sites, the Integrated Density of States (IDS) associated to the Hamiltonian operator whose derivate is the DOS. The exact formula for the IDS is given and the expression of the DOS is analytical. All our calculations are done on the particular periodic Airy-…

A Coq Mechanization of JavaScript Regular Expression Semantics
No\'e De Santo, Aur\`ele Barri\`ere, Cl\'ement Pit-Claudel
https://arxiv.org/abs/2403.11919

A Coq Mechanization of JavaScript Regular Expression Semantics
We present an executable, proven-safe, faithful, and future-proof Coq mechanization of JavaScript regular expression (regex) matching, as specified by the last published edition of ECMA-262 section 22.2. This is, to our knowledge, the first time that an industrial-strength regex language has been faithfully mechanized in an interactive theorem prover. We highlight interesting challenges that arose in the process (including issues of encoding, corner cases, and executability), and we document th…

This https://arxiv.org/abs/2402.00280 has been replaced.
link: https://scholar.google.com/scholar?q=a

A quantization of interacting particle systems
Interacting particle systems studied in this paper are probabilistic cellular automata with nearest-neighbor interaction including the Domany-Kinzel model. A special case of the Domany-Kinzel model is directed percolation. We regard the interacting particle system as a Markov chain on a graph. Then we present a new quantization of the interacting particle system. After that, we introduce a zeta function of the quantized model and give its determinant expression. Moreover, we calculate the absol…

PEN America cancels 2024 awards after authors drop out over Gaza | PEN | The Guardian
https://www.theguardian.com/books/2024/apr/22/pen-america-awards-gaza

This https://arxiv.org/abs/2403.09581 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Universal Definitions of the Roman Factorial: Introduction to Foundational Functions and the Generalization Process
This paper introduces a new method for redefining the Roman factorial using universally applicable functions that are not expressed in closed form. We present a set of foundational functions, similar to Boolean operations, to simplify the factorial expression. Through a systematic process of generalization, termed generalization process, we aim to use these foundational functions to create recursive and non-recursive, global definitions of the Roman factorial.

Not going to lie. This is going to take some getting used to in #rust coming from the land of #dotnet

The Grammarphobia Blog: ‘Dad wouldn’t have a bar of it’
"Q: Can you shed any light on the origin of the (mainly) Australian phrase “wouldn’t have a bar of it,” especially what “bar” is doing in there?
A: The expression “not to stand [or “have” or “want”] a bar of something” first appeared in Australian English in the early 20th century, according to Green’s Dictionary of Slang."

This https://arxiv.org/abs/2312.03383 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_grqc_…

Correlations for an anisotropic polarized stochastic gravitational wave background in pulsar timing arrays
The recent compelling observation of the nanohertz stochastic gravitational wave background has brought to light a new galactic arena to test gravity. In this paper, we derive a formula for the most general expression of the stochastic gravitational wave background correlation that could be tested with pulsar timing and future square kilometer arrays. Our expressions extends the harmonic space analysis, also often referred to as the power spectrum approach, to predict the correlation signatures…

Nothing says university quite like the phrase "brand expression."
#academia #AcademicChatter

Prove Symbolic Regression is NP-hard by Symbol Graph
Jinglu Song, Qiang Lu, Bozhou Tian, Jingwen Zhang, Jake Luo, Zhiguang Wang
https://arxiv.org/abs/2404.13820

Prove Symbolic Regression is NP-hard by Symbol Graph
Symbolic regression (SR) is the task of discovering a symbolic expression that fits a given data set from the space of mathematical expressions. Despite the abundance of research surrounding the SR problem, there's a scarcity of works that confirm its NP-hard nature. Therefore, this paper introduces the concept of a symbol graph as a comprehensive representation of the entire mathematical expression space, effectively illustrating the NP-hard characteristics of the SR problem. Leveraging the sy…

The procedure box model of #Prolog execution

A discretization of the iterated integral expression of the multiple polylogarithm
Minoru Hirose, Toshiki Matsusaka, Shin-ichiro Seki
https://arxiv.org/abs/2404.15210

A discretization of the iterated integral expression of the multiple polylogarithm
Recently, Maesaka, Watanabe, and the third author discovered a phenomenon where the iterated integral expressions of multiple zeta values become discretized. In this paper, we extend their result to the case of multiple polylogarithms and provide two proofs. The first proof uses the method of connected sums, while the second employs induction based on the difference equations that discrete multiple polylogarithms satisfy. We also investigate several applications of our main result.

I am more fluent in LaTeX than in plotmath expression. If you are the same, latex2exp will make your life easier. https://cran.r-project.org/web/packages/latex2exp/vignettes/using-latex2exp.html

Network Learning with Directional Sign Patterns
Anqi Dong, Can Chen, Tryphon T. Georgiou
https://arxiv.org/abs/2403.14915 https://arx…

Network Learning with Directional Sign Patterns
Complex systems can be effectively modeled via graphs that encode networked interactions, where relations between entities or nodes are often quantified by signed edge weights, e.g., promotion/inhibition in gene regulatory networks, or encoding political of friendship differences in social networks. However, it is often the case that only an aggregate consequence of such edge weights that characterize relations may be directly observable, as in protein expression of in gene regulatory networks.…

This https://arxiv.org/abs/2306.14747 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_nuc…

Shear viscosity expression for a graphene system in relaxation time approximation
We have gone through the detailed microscopic calculation of the shear viscosity of a 2-dimensional graphene system in the relaxation time approximation-based kinetic theory framework. After getting its final expressions, we compared it with the shear viscosity expressions of other possible 2-dimensional as well as 3-dimensional nonrelativistic and ultra-relativistic fluid systems. The aim of the comparison is to reveal how their different one-body dispersion relations affect their many-body fl…

"Musically, #sevdalinka is characterized by a light, slow tempo & rich harmony, which leave a melancholy feeling with the listener. They are very structurally complex songs and imbued with emotions, they are traditionally performed with a lot of passion & soul. Like any art form, the traditional #music

Sevdah: The perfect marriage of preservation and innovation
Sevdalinka (also known as sevdah) is the folk musical expression characteristic of Bosnia and Herzegovina, which has taken deep roots in the musical cultures of several other Western Balkans countries.

Driving Animatronic Robot Facial Expression From Speech
Boren Li, Hang Li, Hangxin Liu
https://arxiv.org/abs/2403.12670 https://arxiv…

Driving Animatronic Robot Facial Expression From Speech
Animatronic robots aim to enable natural human-robot interaction through lifelike facial expressions. However, generating realistic, speech-synchronized robot expressions is challenging due to the complexities of facial biomechanics and responsive motion synthesis. This paper presents a principled, skinning-centric approach to drive animatronic robot facial expressions from speech. The proposed approach employs linear blend skinning (LBS) as the core representation to guide tightly integrated i…

Don't know where this image originates but possibly the Kremlin.

Cross-modal Diffusion Modelling for Super-resolved Spatial Transcriptomics
Xiaofei Wang, Xingxu Huang, Stephen J. Price, Chao Li
https://arxiv.org/abs/2404.12973

Cross-modal Diffusion Modelling for Super-resolved Spatial Transcriptomics
The recent advancement of spatial transcriptomics (ST) allows to characterize spatial gene expression within tissue for discovery research. However, current ST platforms suffer from low resolution, hindering in-depth understanding of spatial gene expression. Super-resolution approaches promise to enhance ST maps by integrating histology images with gene expressions of profiled tissue spots. However, current super-resolution methods are limited by restoration uncertainty and mode collapse. Altho…

This https://arxiv.org/abs/2403.01150 has been replaced.
link: https://scholar.google.com/scholar?q=a

Sequential Rotations and Error Analysis of a Simple Quaternion Estimator
Reference [1] introduces a novel closed-form quaternion estimator from two vector observations. The simplicity of the estimator sometimes yields singular expressions, the current annotation provides the simple rotation schemes for four singular cases. The estimator enables clear physical insights and a closed-form expression for the bias as a function of the quaternion error covariance matrix. The latter could be approximated up to second order with respect to the underlying measurement noise a…

Gene Regulatory Network Inference in the Presence of Dropouts: a Causal View
Haoyue Dai, Ignavier Ng, Gongxu Luo, Peter Spirtes, Petar Stojanov, Kun Zhang
https://arxiv.org/abs/2403.15500

Gene Regulatory Network Inference in the Presence of Dropouts: a Causal View
Gene regulatory network inference (GRNI) is a challenging problem, particularly owing to the presence of zeros in single-cell RNA sequencing data: some are biological zeros representing no gene expression, while some others are technical zeros arising from the sequencing procedure (aka dropouts), which may bias GRNI by distorting the joint distribution of the measured gene expressions. Existing approaches typically handle dropout error via imputation, which may introduce spurious relations as t…

I once had a conversation with a professor of process philosophy about how we can be open to the prospect that there's only one Act, and that everything is that Act a certain way. And, given that adverbs can modify verbs and other adverbs, everything can be appreciated as an expression of that Act ... lovingly.
My toddler daughter was sitting on my knee during the conversation, and she summed up our philosophical musings this way:
"Hunky-dory is how everything is make.&q…

Unraveling cell-cell communication with NicheNet by inferring active ligands from transcriptomics data
Chananchida Sang-aram, Robin Browaeys, Ruth Seurinck, Yvan Saeys
https://arxiv.org/abs/2404.16358

Unraveling cell-cell communication with NicheNet by inferring active ligands from transcriptomics data
Ligand-receptor interactions constitute a fundamental mechanism of cell-cell communication and signaling. NicheNet is a well-established computational tool that infers ligand-receptor interactions that potentially regulate gene expression changes in receiver cell populations. Whereas the original publication delves into the algorithm and validation, this paper describes a best practices workflow cultivated over four years of experience and user feedback. Starting from the input single-cell expr…

This https://arxiv.org/abs/2403.09581 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Universal Definitions of the Roman Factorial: Introduction to Foundational Functions and the Generalization Process
This paper introduces a new method for redefining the Roman factorial using universally applicable functions that are not expressed in closed form. We present a set of foundational functions, similar to Boolean operations, to simplify the factorial expression. Through a systematic process of generalization, termed generalization process, we aim to use these foundational functions to create recursive and non-recursive, global definitions of the Roman factorial.

Free expression for me but not for thee.
—#SCOTUS https://mastodon.social/@GottaLaff/112100969737403617

Countdown To Day X: Denying Assange's Freedom Of Expression https://thedissenter.org/countdown-day-x-denying-assange-freedom-expression/

Blonde Redhead - In an Expression of the Inexpressible [1998, full album]
https://blonderedhead.bandcamp.com/album/in-an-expression-of-the-inexpressible

This https://arxiv.org/abs/2402.04307 has been replaced.
link: https://scholar.google.com/scholar?q=a

The fermion self-energy and damping rate in a hot magnetized plasma
We derive a general expression for the fermion self-energy in a hot magnetized plasma by using the Landau-level representation. In the one-loop approximation, the Dirac structure of the self-energy is characterized by five different functions that depend on the Landau-level index $n$ and the longitudinal momentum $p_z$. We derive general expressions for all five functions and obtain closed-form expressions for their imaginary parts. The latter receive contributions from three types of on-shell …

X reports taking down accounts and posts following an order by the Indian government, which local media tied to farmers' protests, and disagrees with the action (Shivam Patel/Reuters)
https://www.reuters.com/world/india/x-says

Outage Probability Analysis of Wireless Paths with Faulty Reconfigurable Intelligent Surfaces
Mounir Bensalem, Admela Jukan
https://arxiv.org/abs/2404.15074

Outage Probability Analysis of Wireless Paths with Faulty Reconfigurable Intelligent Surfaces
We consider a next generation wireless network incorporating a base station a set of typically low-cost and faulty Reconfigurable Intelligent Surfaces (RISs). The base station needs to select the path including the RIS to provide the maximum signal-to-noise ratio (SNR) to the user. We study the effect of the number of elements, distance and RIS hardware failure on the path outage probability, and based on the known signal propagation model at high frequencies, derive the closed-form expression …

Just realised #bash can't do floating point arithmetic, so I have to use bc.
I actually loved bash's "(( EXPRESSION ))" operator and mistakenly thought it could do floating point as well.

This https://arxiv.org/abs/2312.11131 has been replaced.
link: https://scholar.google.com/scholar?q=a

Towards classifying the interior dynamics of charged black holes with scalar hair
The study of the interior of hairy black holes has received significant attention recently. This paper builds upon our recent analytical approach to investigate the internal dynamics of charged black holes with scalar hair in general spacetime dimensions. The geometries of these hairy balck holes end at a spacelike singularity. We investigate the alternation of Kasner epoch at later interior times and obtain the analytic expression for two kinds of transformation, namely Kasner inversion and Ka…

Apply for the Michael Kelly Award
First Prize: $25,000
The Michael Kelly Award honors a writer or editor whose work exemplifies a quality that animated Michael Kelly’s own career: the fearless pursuit and expression of truth.
Deadline for entries: March 29. Apply here.
http://michaelkellyaward.com

Michael Kelly Award
The fearless pursuit and expression of truth The Michael Kelly Award honors a writer or editor whose work exemplifies the qualities that animated Michael Kelly’s life and career. 2023 Winner: Lynzy Billing, ProPublicaOver the course of nearly four years, Lynzy Billing, an intrepid and independent investigative journalist, did “what it appeared that no one else…

Pilot Study to Discover Candidate Biomarkers for Autism based on Perception and Production of Facial Expressions
Megan A. Witherow, Norou Diawara, Janice Keener, John W. Harrington, Khan M. Iftekharuddin
https://arxiv.org/abs/2404.16040

Pilot Study to Discover Candidate Biomarkers for Autism based on Perception and Production of Facial Expressions
Purpose: Facial expression production and perception in autism spectrum disorder (ASD) suggest potential presence of behavioral biomarkers that may stratify individuals on the spectrum into prognostic or treatment subgroups. Construct validity and group discriminability have been recommended as criteria for identification of candidate stratification biomarkers. Methods: In an online pilot study of 11 children and young adults diagnosed with ASD and 11 age- and gender-matched neurotypical (NT)…

K-Act2Emo: Korean Commonsense Knowledge Graph for Indirect Emotional Expression
Kyuhee Kim, Surin Lee, Sangah Lee
https://arxiv.org/abs/2403.14253 https://…

K-Act2Emo: Korean Commonsense Knowledge Graph for Indirect Emotional Expression
In many literary texts, emotions are indirectly conveyed through descriptions of actions, facial expressions, and appearances, necessitating emotion inference for narrative understanding. In this paper, we introduce K-Act2Emo, a Korean commonsense knowledge graph (CSKG) comprising 1,900 indirect emotional expressions and the emotions inferable from them. We categorize reasoning types into inferences in positive situations, inferences in negative situations, and inferences when expressions do no…

Force is simply a useful parameter to understand the behaviour of physical objects, because an empirical expression can be imposed using this parameter. For an obect to be stationary, the net force on it must be 0. (3/6)

I am having a very blatantly pathological expression of neurodivergence and I don’t like it.

In most of the world, it is tough to explain free software and open source. It is like that Ursula K. Le Guin quote, about the inescapable power of capitalism, and how difficult to imagine an alternative to this power, in its time as difficult as it was to imagine an escape from the divine right of kings. But in Gaza, before the Al Aqsa Flood, the expression of this power was different. Capitalism was present, but it was not all powerful. It was easy to imagine an alternative, because Gaza, a self-contained enclosure, was forcefully cut off from the market forces of rest of the world. In Gaza, to teach people about free software and open source hardware, was to teach them how to survive. Because by accessing open repositories, even people with no capital could build a tech scene, could develop new technology. This was Mohammed Abu Matar's life work, which he has had to interrupt now as the boundaries restricting the entrance of the outside forces into Gaza have been pierced. I want everyone who has ever contributed to open source hardware and software, to consider reaching out with a donation to Mohammed and to Gaza, to let them know they are not alone: https://www.gofundme.com/f/protect-an-open-source-engineer-and-his-family

A helpful guide from The Perkins School for the Blind on how to write #AltText. https://www.perkins.org/resource/how-write-alt-text-and-image-desc…

How to Write Alt Text and Image Descriptions for the visually impaired – Perkins School for the Blind
Making your website and social media accessible to people with blindness and low vision.

Rights groups back Observer writer Carole Cadwalladr over court costs
A coalition of organisations championing press freedom have rallied behind the award-winning Observer and Guardian journalist Carole Cadwalladr, stating they are “deeply disappointed” she has been refused permission to appeal against a ruling that ordered her to pay significant legal costs to the prominent Brexit backer Arron Banks.
The supreme court refused to let Cadwalladr contest a cost order six months ago …

This https://arxiv.org/abs/2404.09658 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

Scattering on the supermembrane
We compute the one-loop $2 \rightarrow 2$ scattering amplitude of massless scalars on the world volume of an infinite $D = 11$ supermembrane quantized in the static gauge. The resulting expression is manifestly finite and turns out to be much simpler than in the bosonic membrane case in arXiv:2308.12189 being simply proportional to the tree-level scattering amplitude. We also consider the case of $\mathbb{R}^{1,1} \times S^1$ membrane with one dimension compactified on a circle of radius R and …

Not going to lie. This is going to take some getting used to in #rust coming from the land of #dotnet

Why do so many "Contact us" portals (particularly for government bodies) squish paragraphs together into one giant, unreadable block of text?
What reason could there possibly be for doing such an awful thing.
Good writing uses paragraphs to structure the expression. Squishing the original paragraphs into a single block hides that structure and makes it much harder for the recipient to parse.
It is a dumb thing and I wish governments and corporate "contact us…

The Hankel determinants for the generalized derangement polynomials of order r
Ghania Guettai, Diffalah Laissaoui, Mourad Rahmani
https://arxiv.org/abs/2402.16160

The Hankel determinants for the generalized derangement polynomials of order r
This paper sets out to introduce the generalized derangement polynomials of order $r $. It then proceeds to establish various identities associated with these polynomials, along with providing recurrence relations for derangement polynomials of order $ r$. Additionally, the paper offers a probabilistic approach for the generalized derangement polynomials of order $r $. Furthermore, it furnishes a clear expression for the Hankel determinants pertaining to these generalized derangement polynomial…

Implicit returns are a feature in some languages. They have recently bitten me, so here’s my opinion.
#coding

I’m delighted to announce three spring classes starting in February and March.
- Oracular Writing online with Kathe Izzo.
- Zen and the Art of Attention in person at the Strother School of Radical Attention in Brooklyn.
- The Path of Expression: Zen Poetry online with the Village Zendo.
I’d love to see you at any or all of these!
#Writing

The iOS #calculator meme that’s going around where “50 50×2=” yields 150 and not 200, is a great example of *hidden states* in UX design.
Low-cost desktop calculators perform (most) operations strictly left-to-right: press any operator button ( -×÷), and the display is updated to show the result of the calculation so far, and *that* result becomes an operand for the operation. There is no o…

I feel the same way Calvin....I feel the same way....🤦‍♂️
#ADHD #neurodivergent #neurodiversity

Qualitative Approaches to Voice UX
Katie Seaborn, Jacqueline Urakami, Peter Pennefather, Norihisa P. Miyake
https://arxiv.org/abs/2404.14736 https://

Qualitative Approaches to Voice UX
Voice is a natural mode of expression offered by modern computer-based systems. Qualitative perspectives on voice-based user experiences (voice UX) offer rich descriptions of complex interactions that numbers alone cannot fully represent. We conducted a systematic review of the literature on qualitative approaches to voice UX, capturing the nature of this body of work in a systematic map and offering a qualitative synthesis of findings. We highlight the benefits of qualitative methods for voice…

Integrating Deep Learning and Synthetic Biology: A Co-Design Approach for Enhancing Gene Expression via N-terminal Coding Sequences
Zhanglu Yan, Weiran Chu, Yuhua Sheng, Kaiwen Tang, Shida Wang, Yanfeng Liu, Weng-Fai Wong
https://arxiv.org/abs/2402.13297

Integrating Deep Learning and Synthetic Biology: A Co-Design Approach for Enhancing Gene Expression via N-terminal Coding Sequences
N-terminal coding sequence (NCS) influences gene expression by impacting the translation initiation rate. The NCS optimization problem is to find an NCS that maximizes gene expression. The problem is important in genetic engineering. However, current methods for NCS optimization such as rational design and statistics-guided approaches are labor-intensive yield only relatively small improvements. This paper introduces a deep learning/synthetic biology co-designed few-shot training workflow for N…

"But those who know Tom Parker say his IVF concurring opinion was not simply a heartfelt expression of faith, but part of a strategy the chief justice has used to create legal precedent for conservative causes."
Scripture-quoting Alabama judge in IVF case bridges natural law and Christian nationalism

Scripture-quoting Alabama judge in IVF case bridges natural law and Christian nationalism
(RNS) — But those who know Tom Parker say his IVF concurring opinion was not simply a heartfelt expression of faith, but part of a strategy the chief justice has used to create legal precedent for conservative causes.

This https://arxiv.org/abs/2309.05789 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_nuc…

Entropy current and entropy production in relativistic spin hydrodynamics
We use a first-principle quantum-statistical method to derive the expression of the entropy production rate in relativistic spin hydrodynamics. We show that the entropy current is not uniquely defined and can be changed by means of entropy-gauge transformations, much the same way as the stress-energy tensor and the spin tensor can be changed with pseudo-gauge transformations. We show that the local thermodynamic relations, which are admittedly educated guesses in relativistic spin hydrodynamics…

I once had a conversation with a professor of process philosophy about how we can be open to the prospect that there's only one Act, and that everything is that Act a certain way. And, given that adverbs can modify verbs and other adverbs, everything can be appreciated as an expression of that Act ... lovingly.
My toddler daughter was sitting on my knee during the conversation, and she summed up our philosophical musings this way:
"Hunky-dory is how everything is make.&q…

Multi-scale modeling of Snail-mediated response to hypoxia in tumor progression
Giulia Chiari, Martina Conte, Marcello Delitala
https://arxiv.org/abs/2404.16769

Multi-scale modeling of Snail-mediated response to hypoxia in tumor progression
Tumor cell migration within the microenvironment is a crucial aspect for cancer progression and, in this context, hypoxia has a significant role. An inadequate oxygen supply acts as an environmental stressor inducing migratory bias and phenotypic changes. In this paper, we propose a novel multi-scale mathematical model to analyze the pivotal role of Snail protein expression in the cellular responses to hypoxia. Starting from the description of single-cell dynamics driven by the Snail protein, w…

A Shintani lift for rigid cocycles
Isabella Negrini
https://arxiv.org/abs/2404.12936 https://arxiv.org/pdf/2404.12936

A Shintani lift for rigid cocycles
We construct a Shintani lift for rigid analytic cocycles of higher weight, attaching modular forms of half-integral weight to such cocycles. The expression for the Fourier coefficients of the modular form $\mathcal{RS}(J)$ attached to a cocycle $J$ is given in terms of the residues of $J$, and shares a striking similarity with the expression for the coefficients of the classical Shintani lift $\mathcal{S}(f)$ of an integral weight modular form $f$. This work aligns with the ideas of the nascent…

Integrating Deep Learning and Synthetic Biology: A Co-Design Approach for Enhancing Gene Expression via N-terminal Coding Sequences
Zhanglu Yan, Weiran Chu, Yuhua Sheng, Kaiwen Tang, Shida Wang, Yanfeng Liu, Weng-Fai Wong
https://arxiv.org/abs/2402.13297

Integrating Deep Learning and Synthetic Biology: A Co-Design Approach for Enhancing Gene Expression via N-terminal Coding Sequences
N-terminal coding sequence (NCS) influences gene expression by impacting the translation initiation rate. The NCS optimization problem is to find an NCS that maximizes gene expression. The problem is important in genetic engineering. However, current methods for NCS optimization such as rational design and statistics-guided approaches are labor-intensive yield only relatively small improvements. This paper introduces a deep learning/synthetic biology co-designed few-shot training workflow for N…

Manga Site Blocks Adult Content, But Only for US and UK Users https://www.404media.co/pixiv-manga-site-blocks-adult-content-but-only-for-us-and-uk-users/

Manga Site Blocks Adult Content, But Only for US and UK Users
Pixiv, a Japan-based image gallery site, is enforcing new "Restrictions for Healthy Expression" for users in the US and UK.

I am having a very blatantly pathological expression of neurodivergence and I don’t like it.

This https://arxiv.org/abs/2403.12670 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csRO_…

Driving Animatronic Robot Facial Expression From Speech
Animatronic robots aim to enable natural human-robot interaction through lifelike facial expressions. However, generating realistic, speech-synchronized robot expressions is challenging due to the complexities of facial biomechanics and responsive motion synthesis. This paper presents a principled, skinning-centric approach to drive animatronic robot facial expressions from speech. The proposed approach employs linear blend skinning (LBS) as the core representation to guide tightly integrated i…

Active RIS-Aided Massive MIMO Uplink Systems with Low-Resolution ADCs
Zhangjie Peng, Zecheng Lu, Xue Liu, Cunhua Pan, Jiangzhou Wang
https://arxiv.org/abs/2404.13875

Active RIS-Aided Massive MIMO Uplink Systems with Low-Resolution ADCs
This letter considers an active reconfigurable intelligent surface (RIS)-aided multi-user uplink massive multipleinput multiple-output (MIMO) system with low-resolution analog-to-digital converters (ADCs). The letter derives the closedform approximate expression for the sum achievable rate (AR), where the maximum ratio combination (MRC) processing and low-resolution ADCs are applied at the base station. The system performance is analyzed, and a genetic algorithm (GA)-based method is proposed to…

Dynamic Resolution Guidance for Facial Expression Recognition
Jie Ou, Xu Li, Tianxiang Jiang, Yuanlun Xie
https://arxiv.org/abs/2404.06365 https://<…

Dynamic Resolution Guidance for Facial Expression Recognition
Facial expression recognition (FER) is vital for human-computer interaction and emotion analysis, yet recognizing expressions in low-resolution images remains challenging. This paper introduces a practical method called Dynamic Resolution Guidance for Facial Expression Recognition (DRGFER) to effectively recognize facial expressions in images with varying resolutions without compromising FER model accuracy. Our framework comprises two main components: the Resolution Recognition Network (RRN) an…

This https://arxiv.org/abs/2404.03385 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

Signed eigenvalue/vector distribution of complex order-three random tensor
We compute the signed distribution of the eigenvalues/vectors of the complex order-three random tensor by computing a partition function of a four-fermi theory, where signs are from a Hessian determinant associated to each eigenvector. The issue of the presence of a continuous degeneracy of the eigenvectors is properly treated by a gauge-fixing. The final expression is compactly represented by a generating function, which has an expansion whose powers are the dimensions of the tensor index spac…

This evening's #contemplative rumination:
I sometimes #meditate in my sleep. And that helps me realize that my waking thinking "ego" self isn't the starting point — like sleep, it comes from somewhere; it's generated; it's an expression.
And that further helps …

Manga Site Blocks Adult Content, But Only for US and UK Users https://www.404media.co/pixiv-manga-site-blocks-adult-content-but-only-for-us-and-uk-users/

Manga Site Blocks Adult Content, But Only for US and UK Users
Pixiv, a Japan-based image gallery site, is enforcing new "Restrictions for Healthy Expression" for users in the US and UK.

Enhancing Empathetic Response Generation by Augmenting LLMs with Small-scale Empathetic Models
Zhou Yang, Zhaochun Ren, Wang Yufeng, Shizhong Peng, Haizhou Sun, Xiaofei Zhu, Xiangwen Liao
https://arxiv.org/abs/2402.11801

Enhancing Empathetic Response Generation by Augmenting LLMs with Small-scale Empathetic Models
Empathetic response generation is increasingly significant in AI, necessitating nuanced emotional and cognitive understanding coupled with articulate response expression. Current large language models (LLMs) excel in response expression; however, they lack the ability to deeply understand emotional and cognitive nuances, particularly in pinpointing fine-grained emotions and their triggers. Conversely, small-scale empathetic models (SEMs) offer strength in fine-grained emotion detection and deta…

This https://arxiv.org/abs/2310.14724 has been replaced.
link: https://scholar.google.com/scholar?q=a

A Survey on LLM-Generated Text Detection: Necessity, Methods, and Future Directions
The powerful ability to understand, follow, and generate complex language emerging from large language models (LLMs) makes LLM-generated text flood many areas of our daily lives at an incredible speed and is widely accepted by humans. As LLMs continue to expand, there is an imperative need to develop detectors that can detect LLM-generated text. This is crucial to mitigate potential misuse of LLMs and safeguard realms like artistic expression and social networks from harmful influence of LLM-ge…

Relations between Chebyshev, Fibonacci and Lucas polynomials via trigonometric sums
Lejla Smajlovi\'c, Zenan \v{S}abanac, Lamija \v{S}\'ceta
https://arxiv.org/abs/2403.12516

Relations between Chebyshev, Fibonacci and Lucas polynomials via trigonometric sums
In this paper we derive some new identities involving the Fibonacci and Lucas polynomials and the Chebyshev polynomials of the first and the second kind. Our starting point is a finite trigonometric sum which equals the resolvent kernel on the discrete circle with $m$ vertices and which can be evaluated in two different ways. An expression for this sum in terms of the Chebyshev polynomials was deduced in \cite{JKS} and the expression in terms of the Fibonacci and Lucas polynomials is deduced in…

Maximal hypersurfaces and aspects of volume of the Kerr family of black holes
Suraj Maurya, Sashideep Gutti, Rahul Nigam
https://arxiv.org/abs/2404.15140 h…

Maximal hypersurfaces and aspects of volume of the Kerr family of black holes
In Schwarzschild spacetime, Reinhart (1973) has shown the hypersurface $r_R = 3M/2$ (the subscript stands for "Reinhart") to be a maximal hypersurface. This Reinhart radius $r_R$ plays a crucial role in evaluating the interior volume of a black hole. In this article, we find such a maximal hypersurface for the Kerr and Kerr-Newaman black holes. We obtain the analytical expression for the Reinhart radius as a function of the polar angle $θ$ for a small $a/M$ limit for both the Kerr and Kerr-New…

On reduced expressions for core double cosets
Ben Elias, Hankyung Ko, Nicolas Libedinsky, Leonardo Patimo
https://arxiv.org/abs/2402.08673 https://<…

On reduced expressions for core double cosets
The notion of a reduced expression for a double coset in a Coxeter group was introduced by Williamson, and recent work of Elias and Ko has made this theory more accessible and combinatorial. One result of Elias-Ko is that any coset admits a reduced expression which factors through a reduced expression for a related coset called its core. In this paper we define a class of cosets called atomic cosets, and prove that every core coset admits a reduced expression as a composition of atomic cosets. …

This https://arxiv.org/abs/2309.02081 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_grqc_…

Quadrupolar radiation in de Sitter: Displacement memory and Bondi metric
We obtain the closed form expression for the metric perturbation around de Sitter spacetime generated by a matter source below Hubble scale both in generalized harmonic gauge and in Bondi gauge up to quadrupolar order in the multipolar expansion, including both parities (i.e. both mass and current quadrupoles). We demonstrate that such a source causes a displacement memory effect close to future infinity that originates, in the even-parity sector, from a $Λ$-BMS transition between the two non-…