Tootfinder

Media And Democracy Project: Mapping Your Local Journalist SuperHeroes
https://thedemlabs.org/2024/03/29/media-and-democracy-project-local-journalist-map/

Media And Democracy Project
Local journalists are the real heroes of Democracy. They report local news so readers know about the issues that matter. Real news.

A (digital?) makeover of a vintage map with elevation data.
Based on the 1894 Rand McNally Map of #Africa
(source unknown)
#Geography #Topography

Because City of Cambridge isn't here, i didn't know that the Mass Ave Planning Study had kicked off, and has its first meeting tomorrow, 6-7:30pm.
https://cambridgema.zoom.us/meeting/register/tZAqdeytqjkqGNxUEKNTqybzja_ISwNYOL2X#/registrati…

I guess LA is about to have more Slow Streets than SF
Their neighborhood enhanced network (now mandated by HLA) would target <1500 vehicles/day with 85th percentile speed <20mph, close to the Slow Street definition

Me: which threat is worse, climate change or nuclear weapons?
Texas: why can't we have both
"Nuclear weapon factory forced to evacuate as Texas wildfires threaten Pantex plant"
https://www.independent.co.uk/climate-change/…

Effective methods for plane quartics, their theta characteristics and the Scorza map
Giorgio Ottaviani
https://arxiv.org/abs/2403.19599 https://

Effective methods for plane quartics, their theta characteristics and the Scorza map
This is a revised version of the lecture notes prepared for the workshop on "Plane quartics, Scorza map and related topics", held in Catania, January 19-21, 2016. The last section contains eight Macaulay2 scripts on theta characteristics and the Scorza map, with a tutorial. The first sections give an introduction to these scripts. The tutorial contains a list of the 36 Scorza preimages of the Edge quartic.

South Carolina to use congressional map deemed unconstitutional
This is an indictment of the Supreme Court. It is not fit for purpose. It needs to be overhauled and reformed. It’s letting an unconstitutional map continue by using its superpower of delay.
We can all see what is happening here.
https://wapo.st/4cxSINs

South Carolina latest state to use congressional map deemed illegal
The Supreme Court heard arguments on the redistricting case in October but has yet to rule, essentially running out the clock for this year’s election.

What fantastic memories this map must encapsulate....
https://pubeurope.com/@europesays/112007373492456878
europesays@pubeurope.com -

Category of a map and nonlinear analysis
Cesar A. Ipanaque Zapata
https://arxiv.org/abs/2403.18848 https://arxiv.org/pdf/2403.18848…

Category of a map and nonlinear analysis
A classic problem in analysis is to solve nonlinear equations of the form \begin{equation*} F(x)=0, \end{equation*} where $F:D^n\to \mathbb{R}^m$ is a continuous map of the closed unit disk $D^n\subset\mathbb{R}^n$ in $\mathbb{R}^m$. A topological technique, which exists in the literature, for the existence of solutions of nonlinear equations is the topological degree theory. In this work, we will use the category of a map theory to solve the problem of existence of solutions of nonlinear equat…

fly_hemibrain: Fly hemibrain (2020)
A synaptic map of the hemibrain connectome of fruit fly Drosophila melanogaster. Nodes are neurons, and edges are synaptic connections, traced individually from brain image sections using EM reconstruction techniques. Neurons are labeled by their type. Edges are annotated by the connection strength between the neurons.
This network has 21739 nodes and 4259624 edges.
Tags: Biological, Connectome, Weighted, Metadata

Someone at the local museum found this map today and sent it to me. It's from 1892 of Stamp Harbour in #PortAlberni near the very beginning of the settlement by colonialists in the area.
The mark that sticks out for me is “Remains of old Indian Vil.” (about 1/4 up the river in the top right). I believe this is what is properly known as “Nuupts’ ikapis” by the Tseshaht and H…

Greek Archaeologists Use The Iliad as a Map to Find 10 Ancient Shipwrecks https://www.goodnewsnetwork.org/greek-archaeologists-use-the-iliad-as-a-map-to-find-10-ancient-shipwrecks/

Greek Archaeologists Use The Iliad as a Map to Find 10 Ancient Shipwrecks
In the epic, Homer writes that the people of Kasos sent ships to fight in the wars with Ilium, which helped the researchers find the wrecks

This Mothers' Day (Sunday May 12)... join us for a Special Edition Slow Ride to a truly-car-free space in our own back yard: Angel Island!
Meet at the Ferry Building Gate B at 11:30AM, roll at 12PM (SHARP!). The ferry costs $9.50 each way and accepts clipper card.

Why Swiss maps are full of hidden secrets
Cartography is serious business in Switzerland — but once in a while, the occasional map gag slips through.
https://bigthink.com/strange-maps/swiss-maps/

Even With Gaza Under Siege, Some Are Imagining Its Reconstruction
-- Thinking of Jared Kushner
https://www.nytimes.com/2024/04/28/business/gaza-economy-rebuilding.html?smid=nytcore-ios-share&amp…

Even With Gaza Under Siege, Some Are Imagining Its Reconstruction
International development agencies have been meeting with Middle East business interests and urban planners to map out an economic future for the territory.

Level-2 IFS Thermodynamic Formalism: Gibbs probabilities in the space of probabilities and the push-forward map
A. O. Lopes, E. R. Oliveira
https://arxiv.org/abs/2403.19566

Level-2 IFS Thermodynamic Formalism: Gibbs probabilities in the space of probabilities and the push-forward map
We will denote by $\mathcal{M}$ the space of Borel probabilities on the symbolic space $Ω=\{1,2...,m\}^\mathbb{N}$. $\mathcal{M}$ is equipped Monge-Kantorovich metric. We consider here the push-forward map $\mathfrak{T}:\mathcal{M} \to \mathcal{M}$ as a dynamical system. The space of Borel probabilities on $\mathcal{M}$ is denoted by $\mathfrak{M}$. Given a continuous function $A: \mathcal{M}\to \mathbb{R}$, an {\it a priori} probability $Π_0$ on $\mathcal{M}$, and a certain convolution opera…

This https://arxiv.org/abs/2205.13436 has been replaced.
link: https://scholar.google.com/scholar?q=a

The cyclic open-closed map, u-connections and R-matrices
This paper considers the (negative) cyclic open-closed map $\mathcal{OC}^{-}$, which maps the cyclic homology of the Fukaya category of a symplectic manifold to its $S^1$-equivariant quantum cohomology. We prove (under simplifying technical hypotheses) that this map respects the respective natural connections in the direction of the equivariant parameter. In the monotone setting this allows us to conclude that $\mathcal{OC}^{-}$ intertwines the decomposition of the Fukaya category by eigenvalue…

This https://arxiv.org/abs/2309.11090 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Optimal map-making with singularities
In this work, we investigate the optimal map-making technique for the linear system $d=Ax+n$ while carefully taking into account singularities that may come from either the covariance matrix $C = \langle nn^t \rangle$ or the main matrix $A$. We first describe the general optimal solution, which is quite complex, and then use the modified pseudo inverse to create a near-optimal solution, which is simple, robust, and can significantly alleviate the unwanted noise amplification during map-making. …

New York Democrats reject bipartisan congressional map for a chance to draw their own lines (CNN)
https://www.cnn.com/2024/02/26/politics/new-york-congressional-map/
http://www.memeorandum.com/240226/p89#a240226p89

This https://arxiv.org/abs/2306.17304 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Characters in p-adic Heisenberg and Lattice Vertex Operator Algebras
We study characters of states in $p$-adic vertex operator algebras. In particular, we show that the image of the character map for both the $p$-adic Heisenberg and $p$-adic lattice vertex operator algebras contain infinitely-many non-classical $p$-adic modular forms which are not contained in the image of the algebraic character map.

This https://arxiv.org/abs/2311.04997 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csNI_…

Digital Twin-based 3D Map Management for Edge-assisted Device Pose Tracking in Mobile AR
Edge-device collaboration has the potential to facilitate compute-intensive device pose tracking for resource-constrained mobile augmented reality (MAR) devices. In this paper, we devise a 3D map management scheme for edge-assisted MAR, wherein an edge server constructs and updates a 3D map of the physical environment by using the camera frames uploaded from an MAR device, to support local device pose tracking. Our objective is to minimize the uncertainty of device pose tracking by periodically…

This https://arxiv.org/abs/2310.17727 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Cluster algebras and tilings for the m=4 amplituhedron
The amplituhedron $A_{n,k,m}(Z)$ is the image of the positive Grassmannian $Gr_{k,n}^{\geq 0}$ under the map ${Z}: Gr_{k,n}^{\geq 0} \to Gr_{k,k+m}$ induced by a positive linear map $Z:\mathbb{R}^n \to \mathbb{R}^{k+m}$. Motivated by a question of Hodges, Arkani-Hamed and Trnka introduced the amplituhedron as a geometric object whose tilings conjecturally encode the BCFW recursion for computing scattering amplitudes. More specifically, the expectation was that one can compute scattering amplitu…

Saturday, May 4: Adams Morgan (AdMo) Porchfest #music #WashingtonDC<…

Adams Morgan PorchFest - Adams Morgan Partnership BID
Adams Morgan Spring PorchFest Returns on Saturday, May 4 with 80+ Bands, 20 Locations, and a Road Closure Along 18th Street NW! [jump to: Lineup | Map | Wristband Discounts] Adams Morgan Spring PorchFest returns on Saturday, May 4 from 2-6pm! Featuring approximately 80 bands,

Top metal image (Mitutoyo 20x/0.42 plan apo, no focus stacking) of Sky130 MPW-8, die 8927D-C2.
Full res at https://siliconpr0n.org/map/efabless/mpw8-8927d-c2/azonenberg_mz_mit20x_rotated/#x=7744&y=10848&z=2…

Privacy-Preserving Map-Free Exploration for Confirming the Absence of a Radioactive Source
Eric Lepowsky, David Snyder, Alexander Glaser, Anirudha Majumdar
https://arxiv.org/abs/2402.17130

Privacy-Preserving Map-Free Exploration for Confirming the Absence of a Radioactive Source
Performing an inspection task while maintaining the privacy of the inspected site is a challenging balancing act. In this work, we are motivated by the future of nuclear arms control verification, which requires both a high level of privacy and guaranteed correctness. For scenarios with limitations on sensors and stored information due to the potentially secret nature of observable features, we propose a robotic verification procedure that provides map-free exploration to perform a source verif…

Adaptive Kernel Density Estimation for Improved Sky Map Computation in Gamma-Ray Astronomy
M. Holler, T. Mitterdorfer, S. Panny
https://arXiv.org/abs/2401.16103

Adaptive Kernel Density Estimation for Improved Sky Map Computation in Gamma-Ray Astronomy
We introduce an alternative method for the calculation of sky maps from data taken with gamma-ray telescopes. In contrast to the established method of smoothing the 2D histogram of reconstructed event directions with a static kernel, we apply a Kernel Density Estimation (KDE) where the kernel size of each gamma-ray candidate is related to its estimated direction uncertainty. Exploiting this additional information implies a gain in resulting image quality, which is validated using both simulatio…

I propose that the B1G update the esteemed "Map" commercial with the new schools AND if a B1G team wins a Natty, that school gets the trophy added to their animation for that year along with the “20XX National NCAAX Champion” for whatever sport its in, for whichever sport the commercial is being aired for. Would potentially be like, 20 versions, BUT I SAY DO IT YOU COWARDS.

fly_hemibrain: Fly hemibrain (2020)
A synaptic map of the hemibrain connectome of fruit fly Drosophila melanogaster. Nodes are neurons, and edges are synaptic connections, traced individually from brain image sections using EM reconstruction techniques. Neurons are labeled by their type. Edges are annotated by the connection strength between the neurons.
This network has 21739 nodes and 4259624 edges.
Tags: Biological, Connectome, Weighted, Metadata

This https://arxiv.org/abs/2403.14916 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csCR_…

Snail: Secure Single Iteration Localization
Localization is a computer vision task by which the position and orientation of a camera is determined from an image and environmental map. We propose a method for performing localization in a privacy preserving manner supporting two scenarios: first, when the image and map are held by a client who wishes to offload localization to untrusted third parties, and second, when the image and map are held separately by untrusting parties. Privacy preserving localization is necessary when the image an…

Who criminalized IVF? Check this map.
https://thedemlabs.org/2024/02/25/map-of-maga-reps-who-voted-to-restrict-ivf-life-at-conception-bill/

Who criminalized IVF? Check this map.
Elections have consequences. IVF gets criminalized. Hold your MAGA reps accountable. Vote for President Biden and Democrats.

Someone at the local museum found this map today and sent it to me. It's from 1892 of Stamp Harbour in #PortAlberni near the very beginning of the settlement by colonialists in the area.
The mark that sticks out for me is “Remains of old Indian Vil.” (about 1/4 up the river in the top right). I believe this is what is properly known as “Nuupts’ ikapis” by the Tseshaht and H…

Affine Yangians and some cosets of non-rectangular $W$-algebras
Mamoru Ueda
https://arxiv.org/abs/2404.18064 https://arxiv.org/pdf/24…

Affine Yangians and some cosets of non-rectangular $W$-algebras
We construct a homomorphism from the affine Yangian associated with $\widehat{\mathfrak{sl}}(q_u-q_{u+1})$ to the universal enveloping algebra of a $W$-algebra associated with $\mathfrak{gl}(\sum_{s=1}^lq_s)$ and a nilpotent element of type $(1^{q_1-q_2},2^{q_2-q_3},\dots,(l-1)^{q_{l-1}-q_l},l^{q_l})$ by using the coproduct and evaluation map for the affine Yangian and the Miura map for non-rectangular $W$-algebras. As an application, we give a homomorphism from the affine Yangian to some coset…

My decision to try to get in a short bike ride this morning was a poor one... I followed it up by putting a gash in my knee when I got home. Hopefully the day improves from here!

Bilhorivka Defense: https://benborges.xyz/2024/03/28/bilhorivka-defense.html

Because of the EU DSA Google Search pages that contain a map no longer link to Google Maps (at least in Europe). Which I found a bit annoying. So I wrote a quick userscript for browsers to re-add the link:
https://greasyfork.org/en/scripts/489881-link-map-in-goo…

This https://arxiv.org/abs/2307.07788 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csSC_…

Deciding One to One property of Boolean maps: Condition and algorithm in terms of implicants
This paper addresses the computational problem of deciding invertibility (or one to one-ness) of a Boolean map $F$ in $n$-Boolean variables. This problem has a special case of deciding invertibilty of a map $F:\mathbb{F}_{2}^n\rightarrow\mathbb{F}_{2}^n$ over the binary field $\mathbb{F}_2$. Further the problem can be extended and stated over a finite field $\mathbb{F}$ instead of $\mathbb{F}_2$. Algebraic condition for invertibility of $F$ in this special case over a finite field is well known…

I’ll just take this news of ShotSpotter being a creepy police-state surveillance apparatus that operates outside of normal democratic oversight mechanisms as an opportunity to remind everyone that is ShotSpotter is also a mechanism for whitewashing police bias with statistics by taking a map of where police put microphones and presenting it as a supposed map of where gun violence occurs.

This https://arxiv.org/abs/2404.14096 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

The coproduct for the affine Yangian and the parabolic induction for non-rectangular $W$-algebras
By using the coproduct and evaluation map for the affine Yangian and the Miura map for non-rectangular $W$-algebras, we construct a homomorphism from the affine Yangian associated with $\widehat{\mathfrak{sl}}(n)$ to the universal enveloping algebra of a non-rectangular $W$-algebra of type $A$, which is an affine analogue of the one given in De Sole-Kac-Valeri. As a consequence, we find that the coproduct for the affine Yangian is compatible with the parabolic induction for non-rectangular $W$-…

Q-Learning to navigate turbulence without a map
Marco Rando, Martin James, Alessandro Verri, Lorenzo Rosasco, Agnese Seminara
https://arxiv.org/abs/2404.17495

Q-Learning to navigate turbulence without a map
We consider the problem of olfactory searches in a turbulent environment. We focus on agents that respond solely to odor stimuli, with no access to spatial perception nor prior information about the odor location. We ask whether navigation strategies to a target can be learned robustly within a sequential decision making framework. We develop a reinforcement learning algorithm using a small set of interpretable olfactory states and train it with realistic turbulent odor cues. By introducing a t…

Integrated Interpolation and Block-term Tensor Decomposition for Spectrum Map Construction
Hao Sun, Junting Chen
https://arxiv.org/abs/2402.17138 https://<…

Integrated Interpolation and Block-term Tensor Decomposition for Spectrum Map Construction
This paper addresses the challenge of reconstructing a 3D power spectrum map from sparse, scattered, and incomplete spectrum measurements. It proposes an integrated approach combining interpolation and block-term tensor decomposition (BTD). This approach leverages an interpolation model with the BTD structure to exploit the spatial correlation of power spectrum maps. Additionally, nuclear norm regularization is incorporated to effectively capture the low-rank characteristics. To implement this …

Greek Archaeologists Use The Iliad as a Map to Find 10 Ancient Shipwrecks https://www.goodnewsnetwork.org/greek-archaeologists-use-the-iliad-as-a-map-to-find-10-ancient-shipwrecks/

Greek Archaeologists Use The Iliad as a Map to Find 10 Ancient Shipwrecks
In the epic, Homer writes that the people of Kasos sent ships to fight in the wars with Ilium, which helped the researchers find the wrecks

Pretty happy with myself for cramming 2 Apocalypse Frame mission options into one map so I only needed to prepare 2 maps for tonight's 3 available missions.
Sword mission: Harass a Republic train as a distraction for the Arrow mission.
Arrow mission: Sabotage a Republic chemical plant and acquire samples.
Shield mission: Bring an injured Survivalist to a nearby compound, make friends, plant bugs.
90% chance they take the sword mission and try to blow up the train.…

This https://arxiv.org/abs/2111.11521 has been replaced.
link: https://scholar.google.com/scholar?q=a

The Brownian transport map
Contraction properties of transport maps between probability measures play an important role in the theory of functional inequalities. The actual construction of such maps, however, is a non-trivial task and, so far, relies mostly on the theory of optimal transport. In this work, we take advantage of the infinite-dimensional nature of the Gaussian measure and construct a new transport map, based on the Föllmer process, which pushes forward the Wiener measure onto probability measures on Euclid…

Large Language Model Guided Knowledge Distillation for Time Series Anomaly Detection
Chen Liu, Shibo He, Qihang Zhou, Shizhong Li, Wenchao Meng
https://arXiv.org/abs/2401.15123

Large Language Model Guided Knowledge Distillation for Time Series Anomaly Detection
Self-supervised methods have gained prominence in time series anomaly detection due to the scarcity of available annotations. Nevertheless, they typically demand extensive training data to acquire a generalizable representation map, which conflicts with scenarios of a few available samples, thereby limiting their performance. To overcome the limitation, we propose \textbf{AnomalyLLM}, a knowledge distillation-based time series anomaly detection approach where the student network is trained to m…

PRO BAHN Post April 2024: Kurz vor Ostern ist die neue PRO BAHN Post aus Oberbayern erschienen. Neben einem Hinweis auf die Mitgliederversammlung von PRO BAHN Oberbayern geht es thematisch um den Trambahnausbau in München, um die sogenannte Live-Map der S-Bahn München, um Toiletten in bayerischen Zügen, ein Fitnessprogramm zur MVV-Erweiterung im Oberland, und einen Rückblick auf den Bundesverbandstag von PRO BAHN in Kiel. Kurznachrichten und Terminhinweise ergänzen das…

PRO BAHN Post April 2024
PRO BAHN Post April 2024

Impact of Traffic-Following on Order of Autonomous Airspace Operations
Anahita Jain, Husni R. Idris, John-Paul Clarke
https://arxiv.org/abs/2404.17627 http…

Impact of Traffic-Following on Order of Autonomous Airspace Operations
In this paper, we investigate the dynamic emergence of traffic order in a distributed multi-agent system, aiming to minimize inefficiencies that stem from unnecessary structural impositions. We introduce a methodology for developing a dynamically-updating traffic pattern map of the airspace by leveraging information about the consistency and frequency of flow directions used by current as well as preceding traffic. Informed by this map, an agent can discern the degree to which it is advantageou…

This https://arxiv.org/abs/2401.02968 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csCL_…

Rule-Guided Joint Embedding Learning over Knowledge Graphs
Recent studies focus on embedding learning over knowledge graphs, which map entities and relations in knowledge graphs into low-dimensional vector spaces. While existing models mainly consider the aspect of graph structure, there exists a wealth of contextual and literal information that can be utilized for more effective embedding learning. This paper introduces a novel model that incorporates both contextual and literal information into entity and relation embeddings by utilizing graph convol…

Level-2 IFS Thermodynamic Formalism: Gibbs probabilities in the space of probabilities and the push-forward map
A. O. Lopes, E. R. Oliveira
https://arxiv.org/abs/2403.19566

Level-2 IFS Thermodynamic Formalism: Gibbs probabilities in the space of probabilities and the push-forward map
We will denote by $\mathcal{M}$ the space of Borel probabilities on the symbolic space $Ω=\{1,2...,m\}^\mathbb{N}$. $\mathcal{M}$ is equipped Monge-Kantorovich metric. We consider here the push-forward map $\mathfrak{T}:\mathcal{M} \to \mathcal{M}$ as a dynamical system. The space of Borel probabilities on $\mathcal{M}$ is denoted by $\mathfrak{M}$. Given a continuous function $A: \mathcal{M}\to \mathbb{R}$, an {\it a priori} probability $Π_0$ on $\mathcal{M}$, and a certain convolution opera…

Crossing symmetry and the crossing map
Ricardo Correa da Silva, Luca Giorgetti, Gandalf Lechner
https://arxiv.org/abs/2402.15763 https://

Crossing symmetry and the crossing map
We introduce and study the crossing map, a closed linear map of order four acting on operators on the tensor square of a given Hilbert space inspired by the crossing property of quantum field theory. This map turns out to be closely connected to Tomita-Takesaki modular theory; in particular its fixed points define endomorphisms of standard subspaces. We also explain how the crossing property is related to finite index subfactor planar algebras/Q-systems. In the latter case, the crossing map tur…

This https://arxiv.org/abs/2311.13521 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

The Gauss map for bielliptic Prym varieties
We completely describe the degree of the Gauss map of the theta divisor of bielliptic Prym varieties. We characterize bielliptic Prym varieties whose Gauss degree is the same as Jacobians. We also construct bielliptic Prym varieties with a very low Gauss degree. In dimension $5$, we obtain a complete description of the Gauss degree on the Andreotti-Mayer locus.

Normal people: using one #map app.
Me: using up to five apps:
1. MapFactor Navigator — with offline maps based on #OpenStreetMap.
#Android

This https://arxiv.org/abs/2311.09043 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qu…

Measurement-induced transitions beyond Gaussianity: a single particle description
Repeated measurements can induce entanglement phase transitions in the dynamics of quantum systems. Interacting models, both chaotic and integrable, generically show a stable volume-law entangled phase at low measurement rates which disappears for free, Gaussian fermions. Interactions break the Gaussianity of a dynamical map in its unitary part, but non-Gaussianity can be introduced through measurements as well. By comparing the entanglement and non-Gaussianity structure of different protocols,…

This https://arxiv.org/abs/2308.09269 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_nli…

Transition to anomalous dynamics in a simple random map
The famous Bernoulli shift (or dyadic transformation) is perhaps the simplest deterministic dynamical system exhibiting chaotic dynamics. It is a piecewise linear time-discrete map on the unit interval with a uniform slope larger than one, hence expanding, with a positive Lyapunov exponent and a uniform invariant density. If the slope is less than one the map becomes contracting, the Lyapunov exponent is negative, and the density trivially collapses onto a fixed point. Sampling from these two d…

Tel Aviv-based Exodigo, which uses AI and sensors to make underground maps for energy, utility, transport, and construction companies, raised a $105M Series A (Saritha Rai/Bloomberg)
https://www.bloomberg.com/news/articles/20

AI Startup Exodigo Raises $105 Million to Make Underground Maps
Exodigo, a startup that uses artificial intelligence and sensors to map the underground, closed a $105 million funding round led by Greenfield Partners and Zeev Ventures.

This https://arxiv.org/abs/2210.13045 has been replaced.
link: https://scholar.google.com/scholar?q=a

Quadratic forms and Genus Theory : a link with 2-descent and an application to non-trivial specializations of ideal classes
Genus Theory is a classical feature of integral binary quadratic forms. Using the author's generalization of the well-known correspondence between quadratic form classes and ideal classes of quadratic algebras, we extend it to the case when quadratic forms are twisted and have coefficients in any PID $R$. When ${R = \mathbb{K}[X]}$, we show that the Genus Theory map is the quadratic form version of the $2$-descent map on a certain hyperelliptic curve. As an application, we make a contribution t…

This https://arxiv.org/abs/2107.08824 has been replaced.
link: https://scholar.google.com/scholar?q=a

Verifying a Realistic Mutable Hash Table
In this work, we verify the mutable LongMap from the Scala standard library, a hash table using open addressing within a single array, using the Stainless program verifier. As a reference implementation, we write an immutable map based on a list of tuples. We then show that LongMap's operations correspond to operations of this association list. To express the resizing of the hash table array, we introduce a new reference swapping construct in Stainless. This allows us to apply the decorator pat…

fly_hemibrain: Fly hemibrain (2020)
A synaptic map of the hemibrain connectome of fruit fly Drosophila melanogaster. Nodes are neurons, and edges are synaptic connections, traced individually from brain image sections using EM reconstruction techniques. Neurons are labeled by their type. Edges are annotated by the connection strength between the neurons.
This network has 21739 nodes and 4259624 edges.
Tags: Biological, Connectome, Weighted, Metadata

CLARE: Cognitive Load Assessment in REaltime with Multimodal Data
Anubhav Bhatti, Prithila Angkan, Behnam Behinaein, Zunayed Mahmud, Dirk Rodenburg, Heather Braund, P. James Mclellan, Aaron Ruberto, Geoffery Harrison, Daryl Wilson, Adam Szulewski, Dan Howes, Ali Etemad, Paul Hungler
https://arxiv.org/abs/2404.17098

CLARE: Cognitive Load Assessment in REaltime with Multimodal Data
We present a novel multimodal dataset for Cognitive Load Assessment in REaltime (CLARE). The dataset contains physiological and gaze data from 24 participants with self-reported cognitive load scores as ground-truth labels. The dataset consists of four modalities, namely, Electrocardiography (ECG), Electrodermal Activity (EDA), Electroencephalogram (EEG), and Gaze tracking. To map diverse levels of mental load on participants during experiments, each participant completed four nine-minutes sess…

These Swiss Maps Are Full of Easter Eggs and Hidden Secrets - Atlas Obscura https://www.atlasobscura.com/articles/swiss-map-secrets

Swiss Maps Are Full of Hidden Secrets
Find the Easter eggs—or the naked lady.

Hier in der Online-Version, dein frühgeschichtlicher Routenplaner.
http://www.landesgeschichte.uni-goettingen.de/handelsstrassen/map.php?lat=54.04426262198998&lon=18.654785156250004&z=6<…

This https://arxiv.org/abs/2403.11687 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_sta…

Nonsmooth Implicit Differentiation: Deterministic and Stochastic Convergence Rates
We study the problem of efficiently computing the derivative of the fixed-point of a parametric non-differentiable contraction map. This problem has wide applications in machine learning, including hyperparameter optimization, meta-learning and data poisoning attacks. We analyze two popular approaches: iterative differentiation (ITD) and approximate implicit differentiation (AID). A key challenge behind the nonsmooth setting is that the chain rule does not hold anymore. Building upon the recent…

Yes, it happens.
I know someone who had a vacant lot in a nice area near a lake in N. Carolina.
One day she got a call from a person who wanted to buy that lot, today, unconditionally, for a good price.
Turns out that someone else had bought another lot. Now, real property tends to have two addresses - a legal one by lot and parcel number based on a map, and a mailing address.
In this case that other person's lot had the correct legal address but had my friend&…

@… is still looking for a student to work on a Google Open Summer of Code proposal for the #OpenStreetMap iD editor:
Mapping widget for real world access restrictions

Prawie zatopiony pomost na jeziorze Jastrowie Wielkie, w Jastrowiu (tak, znowu tam byłem).
https://www.openstreetmap.org/?mlat=53.4115&mlon=16.8583#map=13/53.4115/16.8583
geo:53.4115,16.8583?z=13

CLASS Angular Power Spectra and Map-Component Analysis for 40 GHz Observations through 2022: #galaxy and beyond: https://www.eurekalert.org/news-releases/1035656 - results demonstrate novel strategy to probe the physics and history of the universe.

"Homeowners insurance costs have soared across the country partly due to unpredictable weather patterns, particularly in places like California, Texas and Florida, a development that has led to increased claims from customers that are hurting companies."
https://www.

Harmonic locus and Calogero-Moser spaces
Giovanni Felder, Alexander P. Veselov
https://arxiv.org/abs/2404.18471 https://arxiv.org/pdf…

Harmonic locus and Calogero-Moser spaces
We study the harmonic locus consisting of the monodromy-free Schrödinger operators with rational potential and quadratic growth at infinity. It is known after Oblomkov that it can be identified with the set of all partitions via the Wronskian map for Hermite polynomials. We show that the harmonic locus can also be identified with the subset of the Calogero--Moser space introduced by Wilson, which is fixed by the symplectic action of $\mathbb C^\times.$ As a corollary, for the multiplicity-free…

This https://arxiv.org/abs/2312.17165 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

Duality defects in $D_n$-type Niemeier lattice CFTs
We discuss the construction of duality defects in $c=24$ meromorphic CFTs that correspond to Niemeier lattices. We will illustrate our constructions for the $D_n$-type lattices. We will identify non-anomalous $\mathbb{Z}_2$ symmetries of these theories, and we show that on orbifolding with respect to these symmetries, these theories map to each other. We investigate this map, and in the case of self-dual orbifolds, we provide the duality defect partition functions. We show that exchange automor…

fly_hemibrain: Fly hemibrain (2020)
A synaptic map of the hemibrain connectome of fruit fly Drosophila melanogaster. Nodes are neurons, and edges are synaptic connections, traced individually from brain image sections using EM reconstruction techniques. Neurons are labeled by their type. Edges are annotated by the connection strength between the neurons.
This network has 21739 nodes and 4259624 edges.
Tags: Biological, Connectome, Weighted, Metadata

This https://arxiv.org/abs/2310.09548 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

General birationality and Hyperelliptic Theta divisors
We first state a condition ensuring that having a birational map onto the image is an open property for families of irreducible normal non uniruled varieties. We give then some criteria to ensure general birationality for a family of rational maps, via specializations. Among the applications is a new proof of a result obtained jointly with Luca Cesarano: that, for a general pair $(A,X)$ of an (ample) Hypersurface $X$ in an Abelian Variety $A$, the canonical map $Φ_X$ of $X$ is birational ont…

Emergency Caching: Coded Caching-based Reliable Map Transmission in Emergency Networks
Zeyu Tian, Lianming Xu, Liang Li, Li Wang, Aiguo Fei
https://arxiv.org/abs/2402.17550

Emergency Caching: Coded Caching-based Reliable Map Transmission in Emergency Networks
Many rescue missions demand effective perception and real-time decision making, which highly rely on effective data collection and processing. In this study, we propose a three-layer architecture of emergency caching networks focusing on data collection and reliable transmission, by leveraging efficient perception and edge caching technologies. Based on this architecture, we propose a disaster map collection framework that integrates coded caching technologies. Our framework strategically cache…

fly_larva: Drosophila larva brain (2023)
A complete synaptic map of the brain connectome of the larva of the fruit fly Drosophila melanogaster. Nodes are neurons, and edges are synaptic connections, traced individually from brain image sections using three-dimensional electron microscopy–based reconstruction. Node metadata include the neuron hempisphere, hemispherical homologue, cell type, annotations, and inferred cluster. Edge metadata include the type of interaction (`'aa'`,…

Arithmetic and Topology of the Hexponential map
Scott Schmieding, Christopher-Lloyd Simon
https://arxiv.org/abs/2402.17628 https://ar…

Arithmetic and Topology of the Hexponential map
The modular group $\operatorname{PSL}_2(\mathbb{Z})$ acts on the upper-half plane $\mathbb{HP}$ with quotient the modular orbifold, uniformized by the function $\mathfrak{j} \colon \mathbb{HP}\to \mathbb{C}$. We first show that second derived subgroup $\operatorname{PSL}_2(\mathbb{Z})''$ corresponds to a $\mathbb{Z}^2\rtimes \mathbb{Z}/6$ Galois cover of the modular orbifold by a hexpunctured plane, uniformized by the hexponential map $\operatorname{hexp} \colon \mathbb{HP} \to \mathbb{C} \setm…

Fatal incompetence: Mapping the deadly cost of Republicans ignoring COVID experts
https://thedemlabs.org/2024/04/24/covid-is-deadlier-when-politics-trump-science-covid-deaths-map/

COVID is deadlier when politics trumps science
Fatal incompetence: Mapping the deadly cost of Republicans ignoring COVID experts: Mapping the deadly cost of Republicans ignoring COVID experts

This https://arxiv.org/abs/2403.02751 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csRO_…

Splat-Nav: Safe Real-Time Robot Navigation in Gaussian Splatting Maps
We present Splat-Nav, a real-time navigation pipeline designed to work with environment representations generated by Gaussian Splatting (GSplat), a popular emerging 3D scene representation from computer vision. Splat-Nav consists of two components: 1) Splat-Plan, a safe planning module, and 2) Splat-Loc, a robust pose estimation module. Splat-Plan builds a safe-by-construction polytope corridor through the map based on mathematically rigorous collision constraints and then constructs a Bézier …

Probing the topological phase transition in the Su-Schrieffer-Heeger model using Rydberg-atom synthetic dimensions
Yi Lu, Chuanyu Wang, Soumya K. Kanungo, F. Barry Dunning, Thomas C. Killian
https://arxiv.org/abs/2404.18420

Probing the topological phase transition in the Su-Schrieffer-Heeger model using Rydberg-atom synthetic dimensions
We simulate the the Su-Schrieffer-Heeger (SSH) model using Rydberg-atom synthetic dimensions constructed, in a single atom, from a ladder of six neighboring $n\:^3S_1$ Rydberg states in which adjacent states are coupled with two-photon transitions using microwave fields. Alternating strong/weak tunneling rates, controlled by adjusting the microwave amplitudes, are varied to map out the topological phase transition as a function of the ratio of the tunneling rates. For each ratio, quench dynam…

Desiateryk on putting Ukraine on the cinematic map: https://benborges.xyz/2024/03/23/desiateryk-on-putting.html

Hier in der Online-Version, dein frühgeschichtlicher Routenplaner.
http://www.landesgeschichte.uni-goettingen.de/handelsstrassen/map.php?lat=54.04426262198998&lon=18.654785156250004&z=6<…

This https://arxiv.org/abs/2305.15531 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Twists of Gr(3,n) Cluster Variables as Double and Triple Dimer Partition Functions
We give a combinatorial interpretation for certain cluster variables in Grassmannian cluster algebras in terms of double and triple dimer configurations. More specifically, we examine several Gr(3,n) cluster variables that may be written as degree two or degree three polynomials in terms of Plücker coordinates, and give generating functions for their images under the twist map - a cluster algebra automorphism introduced in work of Berenstein-Fomin-Zelevinsky. The generating functions range ove…

Fatal incompetence: Mapping the deadly cost of Republicans ignoring COVID experts
https://thedemlabs.org/2024/04/24/covid-is-deadlier-when-politics-trump-science-covid-deaths-map/

COVID is deadlier when politics trumps science
Fatal incompetence: Mapping the deadly cost of Republicans ignoring COVID experts: Mapping the deadly cost of Republicans ignoring COVID experts

An absorbing set for the Chialvo map
Paweł Pilarczyk, Grzegorz Graff
https://arXiv.org/abs/2401.15375 https://arXiv.org/pdf/2401.1537…

An absorbing set for the Chialvo map
The classical Chialvo model, introduced in 1995, is one of the most important models that describe single neuron dynamics. In order to conduct effective numerical analysis of this model, it is necessary to obtain a rigorous estimate for the maximal bounded invariant set. We discuss this problem, and we correct and improve the results obtained by Courbage and Nekorkin [Internat. J. Bifur. Chaos Appl. Sci. Engrg. 20 (2010), 1631-1651.] In particular, we provide an explicit formula for an absorbin…

The keys to Snaw-naw-as and the Island Corridor railway – Land Back, Realignment, Improvement.
A Blog post by @…
https://

This https://arxiv.org/abs/2304.12046 has been replaced.
link: https://scholar.google.com/scholar?q=a

When to Replan? An Adaptive Replanning Strategy for Autonomous Navigation using Deep Reinforcement Learning
The hierarchy of global and local planners is one of the most commonly utilized system designs in autonomous robot navigation. While the global planner generates a reference path from the current to goal locations based on the pre-built map, the local planner produces a kinodynamic trajectory to follow the reference path while avoiding perceived obstacles. To account for unforeseen or dynamic obstacles not present on the pre-built map, ``when to replan'' the reference path is critical for the s…

The keys to Snaw-naw-as and the Island Corridor railway – Land Back, Realignment, Improvement.
A Blog post by @…
https://

A dynamical interpretation of the connection map of an attractor-repeller decomposition
J. J. S\'anchez-Gabites
https://arxiv.org/abs/2403.18815 https:…

A dynamical interpretation of the connection map of an attractor-repeller decomposition
In Conley index theory one may study an invariant set $S$ by decomposing it into an attractor $A$, a repeller $R$, and the orbits connecting the two. The Conley indices of $S$, $A$ and $R$ fit into an exact sequence where a certain connection homomorphism $Γ$ plays an important role. In this paper we provide a dynamical interpretation of this map. Roughly, $R$ "emits" an element of its Conley index as a "wavefront", part of which intersects the connecting orbits in $S$. This subset of the wave…

On the relation between pseudocharacters and Chenevier's determinants
Amit Ophir
https://arxiv.org/abs/2402.18034 https://arxiv.o…

On the relation between pseudocharacters and Chenevier's determinants
Consider a commutative unital ring $A$ and a unital $A$-algebra $R$. Let $d$ be a positive integer. Chenevier proved that when $(2d)!$ is invertible in $A$, the map associating to a determinant its trace is a bijection between $A$-valued $d$-dimensional determinants of $R$ and $A$-valued $d$-dimensional pseudocharacters of $R$. In this paper, we show that assuming $d!$ is invertible in $A$ is sufficient. This assumption is already made in the definition of a $d$-dimensional pseudocharacter. O…

This https://arxiv.org/abs/2401.02235 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Reconstruction of curves from their theta hyperplanes in genera $6$ and $7$
We derive a formula for reconstructing a generic complex canonical curve $C$ of genus 6 and 7 in terms of the theta hyperplanes of $C$. Hence, we get a generic inverse to the Torelli map, as well as a complete description of the Schottky locus in these genera. The computational part of the proof relies on a certified numerical argument.

This https://arxiv.org/abs/2309.14150 has been replaced.
link: https://scholar.google.com/scholar?q=a

Learned Contextual LiDAR Informed Visual Search in Unseen Environments
This paper presents LIVES: LiDAR Informed Visual Search, an autonomous planner for target search in unknown environments. We consider the pixel-wise environment perception problem where one is given wide Field of View 2D scan data and must perform LiDAR segmentation to contextually label points in the surroundings. These pixel classifications provide an informed prior on which to plan next best viewpoints during visual search tasks. The map-generalizable classifier is trained from expert data c…

Key 2024 Races Map
#elections

Key 2024 Races Map
Never doubt that a small group of thoughtful, committed, citizens can change the world. Indeed, it is the only thing that ever has.

On the boundedness of solutions of a forced discontinuous oscillator
Tere M-Seara, Luan V. M. F. Silva, Jordi Villanueva
https://arxiv.org/abs/2403.18068 h…

On the boundedness of solutions of a forced discontinuous oscillator
We study the global boundedness of the solutions of a non-smooth forced oscillator with a periodic and real analytic forcing. We show that the impact map associated with this discontinuous equation becomes a real analytic and exact symplectic map when written in suitable canonical coordinates. By an accurate study of the behaviour of the map for large amplitudes and by employing a parametrization KAM theorem, we show that the periodic solutions of the unperturbed oscillator persist as two-dimen…

Getting ready for a 5KM walk this afternoon with friends and family! Most will do the 2KM circuit. #CNOY #PortAlberni

Symmetry defect of $n$-dimensional complete intersections in $\mathbb{C}^{2n-1}$
L. R. G. Dias, Z. Jelonek
https://arxiv.org/abs/2404.18927 https://…

Symmetry defect of $n$-dimensional complete intersections in $\mathbb{C}^{2n-1}$
Let $X, Y \subset \mathbb{C}^{2n-1}$ be $n$-dimensional strong complete intersections in a general position. In this note, we consider the set of midpoints of chords connecting a point $x \in X$ to a point $y \in Y$. This set is defined as the image of the map $Φ(x,y)=\frac{x+y}{2}.$ Under geometric conditions on $X$ and $Y$, we prove that the symmetry defect of $X$ and $Y$, which is the bifurcation set $B(X,Y)$ of the mapping $Φ$, is an algebraic variety, characterized by a topological invar…

Cash for Clout: Mapping Multi-Millionaire Republicans Shopping For Senate Seats
https://thedemlabs.org/2024/03/22/republican-gop-senate-multi-millionaire-candidates-map/

Cash for Clout: Meet the Senate Seat Shoppers
The Very Rich G.O.P. Senate Candidates Bidding for Working-Class Votes

This https://arxiv.org/abs/2305.04204 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Congruences on tropical rational function semifields and tropical curves
We define tropical rational function semifields $\overline{\boldsymbol{T}(X_1, \ldots, X_n)}$ and prove that a tropical curve $\varGamma$ is realized (except for points at infinity) as the congruence variety $V \subset \boldsymbol{R}^n$ associated with a congruence on $\overline{\boldsymbol{T}(X_1, \ldots, X_n)}$ by giving a specific map $\varGamma \to V$. Also, we shed light on the relation between congruences $E$ on $\overline{\boldsymbol{T}(X_1, \ldots, X_n)}$ and congruence varieties associ…

Amalgams of matroids, fibre products and tropical graph correspondences
Dmitry Mineev
https://arxiv.org/abs/2404.18127 https://arxiv.…

Amalgams of matroids, fibre products and tropical graph correspondences
We prove that the proper amalgam of matroids $M_1$ and $M_2$ along their common restriction $N$ exists if and only if the tropical fibre product of Bergman fans ${B(M_1) \times_{B(N)} B(M_2)}$ is positive. We introduce tropical correspondences between Bergman fans as tropical subcycles in their product, similar to correspondences in algebraic geometry, and define a "graph correspondence" of the map of lattices. We prove that graph construction is a functor for the "covering" maps of lattices, e…

Check this map for the Arizona Republicans who voted to ban abortions
#RoeYourVote #Vote4Healthcare

Map of the Arizona Republicans who votes to ban abortions
Hold Republicans who banned abortions accountable.

Dynamical systems on some elliptic modular surfaces via operators on line arrangements
Lukas K\"uhne, Xavier Roulleau
https://arxiv.org/abs/2402.18207

Dynamical systems on some elliptic modular surfaces via operators on line arrangements
This paper further studies the matroid realization space of a specific deformation of the regular $n$-gon with its lines of symmetry. Recently, we obtained that these particular realization spaces are birational to the elliptic modular surfaces $Ξ_{1}(n)$ over the modular curve $X_1(n)$. Here, we focus on the peculiar cases when $n=7,8$ in more detail. We obtain concrete quartic surfaces in $\mathbb{P}^3$ equipped with a dominant rational self-map stemming from an operator on line arrangements…

Legalize it: Map of state marijuana laws
#cannabis

Legalize it: Mapping state marijuana laws
"Too many lives have been upended because of our failed approach to marijuana. It’s time that we right these wrongs." -  President Biden