Tootfinder

A post from the archive 📫:
Columbus Fantasy Transit Map
#musings

As expected, @… (OpenStreetMap France) has bid to host #StateOfTheMap 2026 in #Paris, #France

Robust Robotic Exploration and Mapping Using Generative Occupancy Map Synthesis
Lorin Achey, Alec Reed, Brendan Crowe, Bradley Hayes, Christoffer Heckman
https://arxiv.org/abs/2506.20049

Robust Robotic Exploration and Mapping Using Generative Occupancy Map Synthesis
We present a novel approach for enhancing robotic exploration by using generative occupancy mapping. We introduce SceneSense, a diffusion model designed and trained for predicting 3D occupancy maps given partial observations. Our proposed approach probabilistically fuses these predictions into a running occupancy map in real-time, resulting in significant improvements in map quality and traversability. We implement SceneSense onboard a quadruped robot and validate its performance with real-worl…

Here’s a series of side quests on my other side projects:
1. WBGT (Wet Bulb Globe Temperature) readings are now displayed as 🔥 on https://checkweather.sg/
Open-source: https:…

Great chart of #SEAsia's largest urban parks. Should be an national embarrassment how far down you have to scroll to find the any #city #park from one country in particular, the name of which wouldn't surprise any…

Largest urban parks in Southeast Asia
A list of the largest urban parks in Southeast Asia. Urban parks in Southeast Asia map [Map of urban parks in Southeast Asia.] Notes about the urban park list This is an ongoing list that I am coll…

Huch, Quer (BR) nutzt in einem Beitrag nicht GoogleMaps, sondern Maptiler (OpenStreetMap) (#openstreetmap

This TTC rider was fed up with subway delays. So he built a real-time map to help other users
https://www.thestar.com/news/gta/this-ttc-rider-was-fed-up-with-subway-delays-so-he-…

Przekrój przez wieżę ciśnień. #Błotnica, nieopodal Przemętu, #Wielkopolska.
https://www.openst…

PALM: PAnoramic Learning Map Integrating Learning Analytics and Curriculum Map for Scalable Insights Across Courses
Mahiro Ozaki, Li Chen, Shotaro Naganuma, Valdemar \v{S}v\'abensk\'y, Fumiya Okubo, Atsushi Shimada
https://arxiv.org/abs/2507.18393

PALM: PAnoramic Learning Map Integrating Learning Analytics and Curriculum Map for Scalable Insights Across Courses
This study proposes and evaluates the PAnoramic Learning Map (PALM), a learning analytics (LA) dashboard designed to address the scalability challenges of LA by integrating curriculum-level information. Traditional LA research has predominantly focused on individual courses or learners and often lacks a framework that considers the relationships between courses and the long-term trajectory of learning. To bridge this gap, PALM was developed to integrate multilayered educational data into a curr…

Point Cloud Environment-Based Channel Knowledge Map Construction
Yancheng Wang, Wei Guo, Guanying Chen, Ye Zhang, Shuguang Cui
https://arxiv.org/abs/2506.21112

Point Cloud Environment-Based Channel Knowledge Map Construction
Channel knowledge map (CKM) provides certain levels of channel state information (CSI) for an area of interest, serving as a critical enabler for environment-aware communications by reducing the overhead of frequent CSI acquisition. However, existing CKM construction schemes adopt over-simplified environment information, which significantly compromises their accuracy. To address this issue, this work proposes a joint model- and data-driven approach to construct CKM by leveraging point cloud env…

Vigilance jaune Météo France–Fortes chaleurs. Pensez Š vous hydrater avant votre arrivée en gare et emportez de l'eau pour votre trajet. Retrouvez les points d’eau potable accessibles ici [https://

I love this map, seen at the American Museum in Bath. The creatures are closer to reality than many such maps, but still very much mythical.
Map of the Polar Regions
Theodor de Bry (1528-1598) Copperplate engraving, Frankfurt, 1601
#Art #maps

«Komoot’s core tech of Leaflet map, Graphhopper routing engine, and #OpenStreetMap data are all free, open-source projects. This is in addition to all the open-source web servers, databases, and operating systems that tech companies build upon. They leech off the open-source commons»
I'm convinced that this is one of the big reasons why we need some form of @… sooner rather than later, to ensure our commons can be saved from corp capture.

An isovariant Blakers--Massey theorem
Inbar Klang, Sarah Yeakel
https://arxiv.org/abs/2506.21259 https://arxiv.org/pdf/2506.21259

An isovariant Blakers--Massey theorem
An isovariant map is an equivariant map between $G$-spaces which strictly preserves isotropy groups. In this paper, we lay the groundwork for the study of isovariant stable homotopy theory. We prove an isovariant Blakers--Massey theorem and its $n$-cubical generalization, define a suitable notion of suspension (by a trivial representation sphere) in the isovariant category, and prove an isovariant Freudenthal suspension theorem.

I've been a member of the RSGS for almost 30 years and still never visited the Fair Maid's house. Maybe I should 🤔 It looks lovely...
https://mastodon.social/@Infoseepage/114751023629030656
Infoseepage@mastodon.social - Today I walked into Perth and visited the Scottish Geographic Society's digs in the Fair Maid's House.  It was, in its heyday, a sort of Scottish adventurers club. They've got an interesting reference library and an overstuffed map room. Ernest Shackleton was briefly secretary of the society and they have some of his stuff on display.

Schön war die heutige äh gestrige #CriticalMass in #Zürich. Und mit 25km auch etwas länger als sonst. Mit An- und Abreise waren's für mich 33.5km, die wegen Home-Office heute gut aufs #BikeToWork…

Way: ‪Überlandpark‬ (‪1386852445‬)
OpenStreetMap is a map of the world, created by people like you and free to use under an open license.

Supreme Court defers decision on challenge to Louisiana congressional map (Maureen Groppe/USA Today)
https://www.usatoday.com/story/news/politics/2025/06/27/supreme-court-decision-racial-gerrymandering-louisiana/83480597007/
http://www.memeorandum.com/250628/p4#a250628p4

Morphisms on the modular curve $X_0(p)$ and degree $6$ points
Maarten Derickx, Petar Orli\'c
https://arxiv.org/abs/2506.21166 https://

Morphisms on the modular curve $X_0(p)$ and degree $6$ points
Let $p$ be a prime. We study the morphisms $f:X_0(p)_{\mathbb Q} \to Y$, where $Y/{\mathbb Q}$ is a curve of genus $\geq2$. We prove that for $p<3000$ such an $f$ must be isomorphic to the quotient map $X_0(p)\to X_0^+(p)$. This allows us to classify all points of degree $\leq 25$ on $X_0(p)$ that come from a map to some curve of genus $\geq 2$. As an application, we were able to determine all curves $X_0(p)$ with infinitely many points of degree $6$ over $\mathbb Q$, continuing the previous re…

The {purrr} package is a powerfull way to replace loops. The {furrr} package takes this approach one step further by parallel execution: #rstats

Apply Mapping Functions in Parallel using Futures
Implementations of the family of map() functions from purrr that can be resolved using any future-supported backend, e.g. parallel on the local machine or distributed on a compute cluster.

My favorite part of Uber is following the little jellybean on the map. It's like being a drone pilot except I don't get to drop a grenade on anybody.

I find this map especially amusing in that in 1893, 238 colonists departed Australia (purportedly nonexistent) to found the New Australia colony in Paraguay (ditto).
Of course, Australia didn’t federate till 1901, so it could be argued that Australia didn’t *actually* exist at the time. And given Paraguay’s tremendous (but still hotly contested) losses in the 1864-70 Paraguayan War, the latter country was itself hanging on by a thread.

Sometimes I'm falsely credited with discovering the North Bernal Wiggle, the low-traffic bike route up to Bernal Heights Park that avoids steeper slopes. But it was actually Brian Coyne who told me about it.

Communication-Aware Map Compression for Online Path-Planning: A Rate-Distortion Approach
Ali Reza Pedram, Evangelos Psomiadis, Dipankar Maity, Panagiotis Tsiotras
https://arxiv.org/abs/2506.20579

Communication-Aware Map Compression for Online Path-Planning: A Rate-Distortion Approach
This paper addresses the problem of collaborative navigation in an unknown environment, where two robots, referred to in the sequel as the Seeker and the Supporter, traverse the space simultaneously. The Supporter assists the Seeker by transmitting a compressed representation of its local map under bandwidth constraints to support the Seeker's path-planning task. We introduce a bit-rate metric based on the expected binary codeword length to quantify communication cost. Using this metric, we for…

Development of MR spectral analysis method robust against static magnetic field inhomogeneity
Shuki Maruyama, Hidenori Takeshima
https://arxiv.org/abs/2506.20897

Development of MR spectral analysis method robust against static magnetic field inhomogeneity
Purpose:To develop a method that enhances the accuracy of spectral analysis in the presence of static magnetic field B0 inhomogeneity. Methods:The authors proposed a new spectral analysis method utilizing a deep learning model trained on modeled spectra that consistently represent the spectral variations induced by B0 inhomogeneity. These modeled spectra were generated from the B0 map and metabolite ratios of the healthy human brain. The B0 map was divided into a patch size of subregions, and t…

Multi-Objective Covariance Matrix Adaptation MAP-Annealing
Shihan Zhao, Stefanos Nikolaidis
https://arxiv.org/abs/2505.20712 https://…

Multi-Objective Covariance Matrix Adaptation MAP-Annealing
Quality-Diversity (QD) optimization is an emerging field that focuses on finding a set of behaviorally diverse and high-quality solutions. While the quality is typically defined w.r.t. a single objective function, recent work on Multi-Objective Quality-Diversity (MOQD) extends QD optimization to simultaneously optimize multiple objective functions. This opens up multi-objective applications for QD, such as generating a diverse set of game maps that maximize difficulty, realism, or other propert…

OpenStreetMap doesn't have as many streets documented as Google, but we can make it a killer app by mapping what Google won't! For an easy first destination, I propose we have a group of FOSS-loving volunteers commit ritual suicide and then map ring 2 of the 7th circle of Hell in accordance with Dante's Inferno

On MAP estimates and source conditions for drift identification in SDEs
Daniel Tenbrinck, Nikolas Uesseler, Philipp Wacker, Benedikt Wirth
https://arxiv.org/abs/2507.18443 https…

On MAP estimates and source conditions for drift identification in SDEs
We consider the inverse problem of identifying the drift in an SDE from $n$ observations of its solution at $M+1$ distinct time points. We derive a corresponding MAP estimate, we prove differentiability properties as well as a so-called tangential cone condition for the forward operator, and we review the existing theory for related problems, which under a slightly stronger tangential cone condition would additionally yield convergence rates for the MAP estimate as $n\to\infty$. Numerical simul…

On the reconstruction map in JT gravity
Chris Akers, Andrew Lucas, Amit Vikram
https://arxiv.org/abs/2506.18975 https://arxiv.org/pdf…

On the reconstruction map in JT gravity
An open question in AdS/CFT is how to reconstruct semiclassical bulk operators precisely enough that non-perturbative quantum effects can be computed. We propose a set of physically-motivated requirements for such a reconstruction map, and explicitly construct a map satisfying these requirements in Jackiw-Teitelboim (JT) gravity. Our map is found by canonically quantizing "action-angle" variables for JT gravity, which are chosen to ensure that the spectrum of the fundamental quantum theory matc…

Shape sensitivity analysis of the heat equation and the Dirichlet-to-Neumann map
Matteo Dalla Riva, Paolo Luzzini, Paolo Musolino
https://arxiv.org/abs/2506.21196

Shape sensitivity analysis of the heat equation and the Dirichlet-to-Neumann map
We study a Dirichlet problem for the heat equation in a domain containing an interior hole. The domain has a fixed outer boundary and a variable inner boundary determined by a diffeomorphism $ϕ$. We analyze the maps that assign to the infinite-dimensional shape parameter $ϕ$ the corresponding solution and its normal derivative, and we prove that both are smooth. Motivated by an application to an inverse problem, we then compute the differential with respect to $ϕ$ of the normal derivative of…

Map view of Mastodon
https://fediverse.observer/map

Sonnet 068 - LXVIII
Thus is his cheek the map of days outworn,
When beauty lived and died as flowers do now,
Before these bastard signs of fair were born,
Or durst inhabit on a living brow;
Before the golden tresses of the dead,
The right of sepulchres, were shorn away,
To live a second life on second head;
Ere beauty's dead fleece made another gay:
In him those holy antique hours are seen,
Without all ornament, itself and true,…

Nach einem Brandanschlag auf ein Umspannwerk(?) in Südfrankreich ist dort das Netz teilweise zusammengebrochen. Zeitweise waren mehr als 160k Haushalte betroffen, u.A. auch in Cannes, wo grade das gleichnamige Filmfestival stattfindet.
Spekulation: Dürfte im Bereich Poste électrique du Biançon gewesen sein. Wichtiger Knotenpunkt mit 400/225kV und nem 20MW Wasserkraftwerk (Barrage de Saint-Cassien) dran.

Vigilance jaune Météo France–Fortes chaleurs. Pensez Š vous hydrater avant votre arrivée en gare et emportez de l'eau pour votre trajet. Retrouvez les points d’eau potable accessibles ici [https://

#USpol #epstein #EpsteinFiles #potus

When you plot the locations of "listed" buildings in England, there's a conspicuous bald spot north of Newbury. Is there nothing worth preserving there?

Deciding Robust Instances of an Escape Problem for Dynamical Systems in Euclidean Space
Eike Neumann
https://arxiv.org/abs/2506.21481 https://

Deciding Robust Instances of an Escape Problem for Dynamical Systems in Euclidean Space
We study the problem of deciding whether a point escapes a closed subset of $\mathbb{R}^d$ under the iteration of a continuous map $f \colon \mathbb{R}^d \to \mathbb{R}^d$ in the bit-model of real computation. We give a sound partial decision method for this problem which is complete in the sense that its halting set contains the halting set of all sound partial decision methods for the problem. Equivalently, our decision method terminates on all problem instances whose answer is robust under a…

#PhDCongratulations! 🥳 Philipp Löschl of the #IMPRS “Solar System School” has successfully defended his PhD thesis
“Science Preparation for SO/PHI: Building the First Multi-View Synoptic Map with SO/PHI and SDO/HMI”. ‪🌞
@…

Cuda inżynierii: kładka w Owińskach.
Nie, nie tamta kładka.
#Owińska

Continuous Map Matching to Paths under Travel Time Constraints
Yannick Bosch, Sabine Storandt
https://arxiv.org/abs/2506.18354 https://

Continuous Map Matching to Paths under Travel Time Constraints
In this paper, we study the problem of map matching with travel time constraints. Given a sequence of $k$ spatio-temporal measurements and an embedded path graph with travel time costs, the goal is to snap each measurement to a close-by location in the graph, such that consecutive locations can be reached from one another along the path within the timestamp difference of the respective measurements. This problem arises in public transit data processing as well as in map matching of movement tra…

On the Asymptotic Density of a GCD-based Map
Thang Pang Ern, Malcolm Tan Jun Xi
https://arxiv.org/abs/2506.19812 https://arxiv.org/pd…

On the Asymptotic Density of a GCD-based Map
We show that the symmetry of \[f\left(a,b\right)=\frac{\operatorname{gcd}\left(ab,a+b\right)}{\operatorname{gcd}\left(a,b\right)}\] stems from an $\operatorname{SL}_2\left(\mathbb{Z}\right)$ action on primitive pairs and that all solutions to $f\left(a,b\right)=n$ admit a uniform three-parameter description -- recovering arithmetic-progression families via the Chinese remainder theorem when $n$ is squarefree. It shows that the density of pairs with $f\left(a,b\right)=1$ tends to $\prod_p\left(1…

Statistical Inference for Optimal Transport Maps: Recent Advances and Perspectives
Sivaraman Balakrishnan, Tudor Manole, Larry Wasserman
https://arxiv.org/abs/2506.19025

Statistical Inference for Optimal Transport Maps: Recent Advances and Perspectives
In many applications of optimal transport (OT), the object of primary interest is the optimal transport map. This map rearranges mass from one probability distribution to another in the most efficient way possible by minimizing a specified cost. In this paper we review recent advances in estimating and developing limit theorems for the OT map, using samples from the underlying distributions. We also review parallel lines of work that establish similar results for special cases and variants of t…

Cool, #OpenStreetMap hat jetzt einen Vector Tile Layer, modern, skalierbar, anpassbar, gefällt mir gut!
https://www.openstreetmap.org/#map=18/51.213175/6.776043&layer…

Seen David Attenborough's film Ocean? Track countries' progress in signing and ratifying the High Seas Treaty, needed to protect 30% of the oceans.
https://highseasalliance.org/treaty-ratification/map/
Here's Europe:
orange = signed only,

High Seas Treaty Ratification Map
At least 60 countries must sign and ratify the High Seas Treaty for it to become international law. Follow progress and see who has signed and ratify the treaty on the world map.

Been playing Transiruby and the exploration poetics are top-notch, like rivalling Super Metroid good, which is a distinct rarity among metroidvanias.
Something the original Super Metroid had was required secrets and the expectation that you'd actually read the map as a gameplay skill. Many many metroidvanias don't have that, including favorites like Ori, but it's one of the things that makes Hollow Knight stand out. Transiruby sadly doesn't have maps-as-rewards, but it does have moments where consulting the map is expected (water cog is a big one since it's in the middle of an already-explored area by the time you can access it). The game also requires revisits with the coin door mechanic, but marks the things you need on the map and structures revisits really nicely with a variety of shortcuts that open up as you gain abilities.
I was kinda sad when the first movement power was double jump (le sigh) but the second movement power is really neat and original, so I'm happy again.
Besides the big things, there are a lot of little moments where there's ludonarrative harmony between the choice structures and the area themes/plot points.
Haven't finished it yet, but so far it's headed into my top tier of metroidvanias, or very close, even despite fairly simple combat and easy (if fun) bosses.
#Transiruby #AmPlaying #Metroidvania

Oof. #OpenStreetMap minutely replication is currently broken: https://community.openstreetmap.org/t/131884
For me this means that recent edits I made are not queryable via O…

Is OSM partially down? New data isn't able to be queried on the map, and new data isn't being rendered
I’m finding that I can pull data into JOSM and iD that I know exists (due to recently pushed edits), but a query on the map doesn’t list them (not to mention that they also aren’t being rendered; however, when something’s awaiting rendering, I always, at least by my experience, can still query it). For example, this query should list building=toilets, but it doesn’t. If I edit that location in iD I can see the aforementioned feature, and I can also pull it into JOSM, but it isn’t b…

I can't help thinking that there's some sort of "Sexual Dynamo Georg" who's throwing off the numbers somewhere
https://worldpopulationreview.com/country-rankings/average-number-of-sexual-partners-by-country

Multi-Objective Covariance Matrix Adaptation MAP-Annealing
Shihan Zhao, Stefanos Nikolaidis
https://arxiv.org/abs/2505.20712 https://…

Multi-Objective Covariance Matrix Adaptation MAP-Annealing
Quality-Diversity (QD) optimization is an emerging field that focuses on finding a set of behaviorally diverse and high-quality solutions. While the quality is typically defined w.r.t. a single objective function, recent work on Multi-Objective Quality-Diversity (MOQD) extends QD optimization to simultaneously optimize multiple objective functions. This opens up multi-objective applications for QD, such as generating a diverse set of game maps that maximize difficulty, realism, or other propert…

Posterior Cram\'er-Rao Bounds on Localization and Mapping Errors in Distributed MIMO SLAM
Benjamin J. B. Deutschmann, Xuhong Li, Florian Meyer, Erik Leitinger
https://arxiv.org/abs/2506.19957

Posterior Cramér-Rao Bounds on Localization and Mapping Errors in Distributed MIMO SLAM
Radio-frequency simultaneous localization and mapping (RF-SLAM) methods jointly infer the position of mobile transmitters and receivers in wireless networks, together with a geometric map of the propagation environment. An inferred map of specular surfaces can be used to exploit non-line-of-sight components of the multipath channel to increase robustness, bypass obstructions, and improve overall communication and positioning performance. While performance bounds for user location are well estab…

House prices and markets and uses of residential units:
https://www.theguardian.com/commentisfree/2025/jun/25/lisbon-europe-portugal-golden-visa-capital-investors-short-term-re…

House prices and markets and uses of residential units:
https://www.theguardian.com/commentisfree/2025/jun/25/lisbon-europe-portugal-golden-visa-capital-investors-short-term-re…

A post from the archive 📫:
Columbus Fantasy Transit Map
#musings

Bedrock Ocean, which has developed an autonomous underwater vehicle to map the ocean floor using sonar and magnetic sensors, raised a $25M Series A-2 (Tim De Chant/TechCrunch)
https://techcrunch.com/2025/06/10/bedrock-ocean-dredges-u…

Exclusive: Bedrock Ocean dredges up $25M to map the seafloor with robots | TechCrunch
Bedrock Ocean wants to use autonomous underwater vehicles to make mapping the seafloor faster and cheaper.

On the Dark-Energy Enigma
Ali H. Chamseddine, J\"urg Fr\"ohlich
https://arxiv.org/abs/2506.21099 https://arxiv.org/pdf/2506…

On the Dark-Energy Enigma
We present a model that offers an explanation for the presence of (Dark Matter and) Dark Energy in the universe. A key idea is to express the volume form of the Lorentzian metric on space-time in terms of a positive function of a new scalar field multiplying a certain four-form given by the wedge product of the differential of the mimetic scalar field and a certain closed three-form. An ansatz for this three-form related to one commonly used to determine the winding number of a map from a three…

I am hoping to do 1,000 miles on the bike this year. It's still June and I'm at 650 (surpassing the 620 for all of 2024.) I also did 120 this month which is the most miles I've done in a single month. I am glad I started riding and try to do it daily.
#biking #bikeTooter

An iterative CMB lensing estimator minimizing instrumental noise bias
Louis Legrand, Blake Sherwin, Anthony Challinor, Julien Carron, Gerrit S. Farren
https://arxiv.org/abs/2506.20667

An iterative CMB lensing estimator minimizing instrumental noise bias
Noise maps from CMB experiments are generally statistically anisotropic, due to scanning strategies, atmospheric conditions, or instrumental effects. Any mis-modeling of this complex noise can bias the reconstruction of the lensing potential and the measurement of the lensing power spectrum from the observed CMB maps. We introduce a new CMB lensing estimator based on the maximum a posteriori (MAP) reconstruction that is minimally sensitive to these instrumental noise biases. By modifying the li…

Blowing star formation away in AGN Hosts (BAH) -- III: Feeding and feedback in 3C\:293 observed with JWST NIRSpec
Mait\^e S. Z. de Mellos, Rogemar A. Riffel, Gabriel L. Souza-Oliveira, Nadia L. Zakamska, Marina Bianchin, Thaisa Storchi-Bergmann, Rog\'erio Riffel, Jos\'e Henrique Costa-Souza
https://arxiv.org/abs/2506.208…

Blowing star formation away in AGN Hosts (BAH) -- III: Feeding and feedback in 3C\:293 observed with JWST NIRSpec
We use JWST/NIRSpec observations of the radio galaxy 3C 293 to map the emission, extinction, and kinematics of hot molecular and ionized gas, as well as stellar kinematics, within the inner ~ 2 kpc. The stellar velocity field is well described by a rotating disk model, with its kinematical center offset by ~ 0.5 arcsec from the continuum peak. The hot molecular gas is traced by the H$_2$2.12$μ$m emission line, and the ionized gas by [Fe II]1.64$μ$m and Pa$α$. The gas presents three main kine…

Boggles my mind that I can, on a whim, take a day trip to see my favorite building in the world at a great price with several fast trains *per hour*. (Why on a whim? Because I never even considered it, based on the map.) Italian rail is quite something. #Italy25

The Cradle of Civilization
Assyria Babylonia Sumer Persia Elam Medes Parthian
Babylonia - Born Again
https://www.youtube.com/watch?v=5Iy4u3E6iLA
e
DIODATO - Babilonia

Urgent action UK readers as MAP’s lifesaving clinic in Gaza forced to close under new displacement order
Please call your MP today, the last day of parliament.
Demand that,
they call on Keir Starmer and David Lammy to:
*urge Israel to rescind these latest evacuation orders
*suspend all arms transfers to Israel, including parts for F-35 fighter jets
*take all possible steps to hold all perpetrators accountable.
Medical Aid for Palestinians

MAP’s lifesaving clinic in Gaza forced to suspend services amid Israel’s latest displacement orders - Latest News & Developments - Medical Aid for Palestinians
This morning, the Israeli military issued new forced displacement orders which directly endanger vital humanitarian and primary healthcare sites, including those provided by MAP.

A map of #Fediverse shows every instance and the connections to all the other instances it’s connected to, as a snapshot or live-action. Non-federated instances might or might be shown, depends what you’re looking for and how you’re looking. A wire-frame map could show different skins maybe, to suit the purpose. Kind of like a wire-frame diagram of a brain’s network of synapses and shit.

Thermodynamic free energy map for the non-oxidative glycolysis pathways
Adittya Pal
https://arxiv.org/abs/2506.19841 https://arxiv.or…

Thermodynamic free energy map for the non-oxidative glycolysis pathways
Designing reaction pathways that maximize the production of a target compound in a given metabolic network is a fundamental problem in systems biology. In this study, we systematically explore the non-oxidative glycolysis metabolic network, guided by the principle that reactions with negative Gibbs free energy differences are thermodynamically favored. We enumerate alternative pathways that implement the net non-oxidative glycolysis reaction, categorized by their length. Our analysis reveals se…

Going to #NoKings Saturday? Try to recruit the newly radicalizing to defunding the police, to defending all in our communities facing displacement—immigrant, queer, unhoused, unable to pay rent—in short, to fighting local fascisms, so we can better fight national fascism, at ICE centers

Did some high res imaging of the standard cell area of the TPS54527 (and the TI logo in the corner).
Two scans, with focal planes roughly at M1 and M2.
https://siliconpr0n.org/map/ti/tps54527/azonenberg_roi1-fpm1_mit100x/

The homological spectrum for monoidal triangulated categories
Daniel K. Nakano, Kent B. Vashaw, Milen T. Yakimov
https://arxiv.org/abs/2506.19946 https://

The homological spectrum for monoidal triangulated categories
The authors develop a notion of homological prime spectrum for an arbitrary monoidal triangulated category, ${\mathbf C}$. Unlike the symmetric case due to Balmer, the homological primes of ${\mathbf C}$ are not defined as the maximal Serre ideals of the small module category ${\sf mod}\text{-}{\mathbf C}$, or via a noncommutative ring theory inspired version of this construction. Instead, the authors work with an extended comparison map from the Serre prime spectrum $\operatorname{Spc} ({\sf m…

Thanks to several people coming through, I'm now able to run Star Map!!! Thank you, everyone.
https://hachyderm.io/@thomasfuchs/114891756723413030

Same here.
https://fed.brid.gy/r/https://bsky.app/profile/did:plc:pvmejqjts5j7vgkeohkv3woi/post/3lseduwh5v623

Stuff I found (@stuffifound.politicalmemes.org)
Sadly my country is not coloured green yet on this map. Let's hope it will soon! #freepalestine #uk #greatbritain #netherlands #belgium #luxembourg #germany #finland #estonia #latvia #lithuania #france #switzerland #austria #portugal #italy #kosovo #northmacedonia #greece #cyrpus #palestine

I tried hunting POTA with five different #HamRadio antenna arrangements while taking a short holiday at the beach over the past few days. I tried the built-in antenna on my KX3, a 20m vertical with radials on a deck, the same vertical with radials stuck with a stake into the top of a sand dune, and two inverted-V 40m end-fed half wave arrangements on a spiderbeam, a north/south and an e…

«Real-world map data is helping make better games about farms and transportation»
Interesting piece on how games use #OpenStreetMap data. No mention of how those games might accidentally incentivize vandalism to achieve game objectives though!
https://www.theverge.com/games/672035/openstreetmap-data-games

Sequence-to-Sequence Models with Attention Mechanistically Map to the Architecture of Human Memory Search
Nikolaus Salvatore, Qiong Zhang
https://arxiv.org/abs/2506.17424

Sequence-to-Sequence Models with Attention Mechanistically Map to the Architecture of Human Memory Search
Past work has long recognized the important role of context in guiding how humans search their memory. While context-based memory models can explain many memory phenomena, it remains unclear why humans develop such architectures over possible alternatives in the first place. In this work, we demonstrate that foundational architectures in neural machine translation -- specifically, recurrent neural network (RNN)-based sequence-to-sequence models with attention -- exhibit mechanisms that directly…

Cross-section of a #WaterTower. #Błotnica, near Przemęt, #GreaterPoland.
https://www.openstreetmap.org/way/366913514#map=16/51.99377/16.30193

Fascinating map by Elecore showing how much a #V2G-capable electric school bus (one year, regular driving pattern, 30 kW bidirectional charger) could make in different locations under PG&E's Hourly Flex Pricing Pilot(*) in California

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'`,…

De Bruijn Tori Without Zeros: A Field-Theoretic Perspective
Ming Hsuan Kang, Yu Hsuan Hsieh
https://arxiv.org/abs/2506.19605 https://…

De Bruijn Tori Without Zeros: A Field-Theoretic Perspective
We present an algebraic construction of trace-based De Bruijn tori over finite fields, focusing on the nonzero variant that omits the all-zero pattern. The construction arranges nonzero field elements on a toroidal grid using two multiplicatively independent generators, with values obtained by applying a fixed linear map, typically the field trace. We characterize sampling patterns as subsets whose associated field elements form an \( \mathbb{F}_p \)-basis, and show that column structures cor…

‘You’re a Disgrace to the Constitution’: DeSantis-Appointed Court Upholds Map That Erased Majority-Black Florida District, Stripping Away Their Political Power
https://atlantablackstar.com/2025/07/23/desantis-appointed-court-erased-majority-black-florida-district/

TrajSceneLLM: A Multimodal Perspective on Semantic GPS Trajectory Analysis
Chunhou Ji, Qiumeng Li
https://arxiv.org/abs/2506.16401 https://

TrajSceneLLM: A Multimodal Perspective on Semantic GPS Trajectory Analysis
GPS trajectory data reveals valuable patterns of human mobility and urban dynamics, supporting a variety of spatial applications. However, traditional methods often struggle to extract deep semantic representations and incorporate contextual map information. We propose TrajSceneLLM, a multimodal perspective for enhancing semantic understanding of GPS trajectories. The framework integrates visualized map images (encoding spatial context) and textual descriptions generated through LLM reasoning (…

On the Role of Age and Semantics of Information in Remote Estimation of Markov Sources
Jiping Luo, Nikolaos Pappas
https://arxiv.org/abs/2507.18514 https://

On the Role of Age and Semantics of Information in Remote Estimation of Markov Sources
This paper investigates the semantics-aware remote estimation of a finite-state Markov chain. We employ the maximum a posteriori (MAP) estimator and aim to devise a transmission policy to optimize estimation performance subject to a transmission frequency constraint. We leverage two metrics, namely the Age of Consecutive Error (AoCE) and the Age of Information (AoI), to quantify, respectively, the significance of estimation error at the transmitter and the predictability of outdated information…

MapIQ: Benchmarking Multimodal Large Language Models for Map Question Answering
Varun Srivastava, Fan Lei, Srija Mukhopadhyay, Vivek Gupta, Ross Maciejewski
https://arxiv.org/abs/2507.11625

MapIQ: Benchmarking Multimodal Large Language Models for Map Question Answering
Recent advancements in multimodal large language models (MLLMs) have driven researchers to explore how well these models read data visualizations, e.g., bar charts, scatter plots. More recently, attention has shifted to visual question answering with maps (Map-VQA). However, Map-VQA research has primarily focused on choropleth maps, which cover only a limited range of thematic categories and visual analytical tasks. To address these gaps, we introduce MapIQ, a benchmark dataset comprising 14,70…

Transfer using Fourier transform and minimal representation of $E_7$
Nhat Hoang Le, Bryan Peng Jun Wang
https://arxiv.org/abs/2507.18329 https://arxiv.org/…

Transfer using Fourier transform and minimal representation of $E_7$
In this paper, we study the Sakellaridis-Venkatesh conjecture for the rank-1 spherical variety $X=\text{Spin}_9\backslash F_4$ using an exceptional theta correspondence. We establish the correct transfer map satisfying relative character identities in this case and show that our transfer map agrees with the formula in (Sakellaridis, 2021). Moreover, we show how our techniques lead to a characterization of $X$-relatively cuspidal representations.

#blitz Ortung online:
https://www.blitzortung.org/de/live_lightning_maps.php?map=16

Geometry of Chord Intertwiner, Multiple Shocks and Switchback in Double-Scaled SYK
Sergio E. Aguilar-Gutierrez, Jiuci Xu
https://arxiv.org/abs/2506.19013 h…

Geometry of Chord Intertwiner, Multiple Shocks and Switchback in Double-Scaled SYK
We revisit the bulk Hilbert space interpretation of chords in the double-scaled SYK (DSSYK) model and introduce a notion of intertwiner that constructs bulk states from states with fixed boundary conditions. This leads to an isometric map that factorizes the one-particle bulk Hilbert space into a tensor product of two boundary Hilbert spaces without particle insertion. The map enables a systematic derivation of a family of correlation functions with arbitrary finite amount of matter insertions,…

Paper Alert!
"Embedding-Based Multilingual Semantic Search for Geo-Textual Data in Urban Studies," is published in @…
I developed an open-source, lightweight method to map phenomena using natural language, like "cherry blossom spots" or "skate parks", based on user-generated data.
Try the demos:

A stylized map of #Manila, #Philippines 🇵🇭 on the wall at the Sheraton Manila Bay's restaurant.
#MapsInTheWild

CURL-SLAM: Continuous and Compact LiDAR Mapping
Kaicheng Zhang, Shida Xu, Yining Ding, Xianwen Kong, Sen Wang
https://arxiv.org/abs/2506.21077 https://

CURL-SLAM: Continuous and Compact LiDAR Mapping
This paper studies 3D LiDAR mapping with a focus on developing an updatable and localizable map representation that enables continuity, compactness and consistency in 3D maps. Traditional LiDAR Simultaneous Localization and Mapping (SLAM) systems often rely on 3D point cloud maps, which typically require extensive storage to preserve structural details in large-scale environments. In this paper, we propose a novel paradigm for LiDAR SLAM by leveraging the Continuous and Ultra-compact Representa…

Sonnet 068 - LXVIII
Thus is his cheek the map of days outworn,
When beauty lived and died as flowers do now,
Before these bastard signs of fair were born,
Or durst inhabit on a living brow;
Before the golden tresses of the dead,
The right of sepulchres, were shorn away,
To live a second life on second head;
Ere beauty's dead fleece made another gay:
In him those holy antique hours are seen,
Without all ornament, itself and true,…

«Real-world map data is helping make better games about farms and transportation»
Interesting piece on how games use #OpenStreetMap data. No mention of how those games might accidentally incentivize vandalism to achieve game objectives though!
https://www.theverge.com/games/672035/openstreetmap-data-games

Properties of the cores and filaments in the Ophiuchus molecular cloud and its L1688 hub-filament system
Bo-Sheng Jia, Guo-Yin Zhang, Alexander Menshchikov, Sami Dib, Jin-Zeng Li, Ke Wang, Di Li, Xue-Mei Li, Zhi-Yuan Ren, Chang Zhang, Nageen Pervaiz, Lin Xiao
https://arxiv.org/abs/2506.20619…

Properties of the cores and filaments in the Ophiuchus molecular cloud and its L1688 hub-filament system
Analyzing filaments and cores in molecular clouds is key to understanding galactic star formation and its environmental dependence. This paper studies the properties and distribution of dense cores and filaments in the Ophiuchus molecular cloud, with a focus on the L1688 hub-filament system (HFS) and its star formation potential. We extracted sources and filaments from Herschel images and a 13.5 arcsec resolution surface density map using the getsf method, identified prestellar cores among the …

Idly wondered if there are any carolean post boxes, and a search of OSM suggests there's at least eight.
https://overpass-turbo.eu/s/24R8

Jutro chyba wejdę na Śnieżkę.
Śnieżka: https://www.openstreetmap.org/node/3889241996#map=14/51.44064/16.24380

Laurel, which uses AI to map how workers spend time by integrating with tools like Slack and Outlook, raised a $100M Series C led by IVP at a $510M valuation (Allie Garfinkle/Fortune)
https://fortune.com/2025/06/10/exclusive-laurel-r…

Exclusive: Laurel raises $100 Series C to map where the time goes
Laurel has raised a $100 million Series C led by IVP, Fortune has exclusively learned. The deal values the startup at $510 million.

In boon for House GOP, Florida Supreme Court sides with DeSantis, upholds congressional map (Gary Fineout/Politico)
https://www.politico.com/news/2025/07/17/florida-supreme-court-sides-with-desantis-upholds-congressional-map-00459893
http://www.memeorandum.com/250717/p143#a250717p143

Earlier this month, #TomPatterson released a free (public domain) print-quality physical map of maritime Southeast Asia. It could actually almost double as a map of SEA except the northern part of Myanmar is cut off. 🗺️
https://

From dual canonical bases to positroidal subdivisions
Jian-Rong Li, Ayush Kumar Tewari
https://arxiv.org/abs/2506.19443 https://arxiv…

From dual canonical bases to positroidal subdivisions
The Grassmannian cluster algebra $\mathbb{C}[\text{Gr}(k, n)]$ admits a distinguished basis known as the dual canonical basis, whose elements correspond to rectangular semi-standard Young tableaux with $k$ rows and with entries in $[n]$. We establish that each such tableau induces a positroidal subdivision of the hypersimplex $Δ(k,n)$ via a map introduced by Speyer and Williams. For $\text{Gr}(2,n)$, we prove that non-frozen prime tableaux correspond precisely to the coarsest positroidal subdi…

Another hole in the Flightradar map.

I've a "old #astronomy software" side project and I'm looking for the early Mac software "StarMap" or "Star Map" from Bruce Webster.
So far my searches came up empty, but I'm not a specialist in old Mac software.
Does anyone have a copy of this app?
It's described in detail in a July 1985 BYTE article: #retrocomputing

With the #OpenStreetMap website’s new #VectorTiles, it’s nice to see that we can zoom in to level 23! Unfortunately, if the vector coordinates are not stored with OSM’s 7 decimal places for higher-zoom tiles, then what’s the point of all that zoom? 👀

Openreach (who operates a big chunk of internet access in the UK) collects a lot of data about end-user internet use and can generate press releases based on analysis of it.
This is like an advert for VPNs.
https://www.openreach.com/news/how-do-you-

How do you broadband? Openreach reveals UK hotspot map
Whether it’s online shopping, gaming or TV super streaming, your most likely broadband habits depend on where you live in the UK, Openreach reveals today.In the first research of its kind to mark 25 years of home broadband in the UK, Openreach, has combined its own data with extensive consumer research to map the UK cities by their online acti...

Already worked on a small improvement to @… – to provide some more context in the alt-text of the images.
The best idea I've come up for now: Get the features that close to the location of the image from #openstreetmap to get an idea what's "on the map" there.
See some examples on Codeberg: #panoramax

Done mapping all 15 #barangays of Bien Unido, Bohol, #Philippines 🇵🇭 in #OpenStreetMap, updating their #Wikidata

I saw that I have just passed a million total #OpenStreetMap map changes according to HDYC! 🎉🗺️
While this might seem a lot, this is still less than some of my OSM friends that have over 2 or 3 million changes.