Tootfinder

All Ordinals are Cop-Robber Ordinals
Jorge Cruz Chapital, Tom\'a\v{s} Fl\'idr, Maria-Romina Ivan
https://arxiv.org/abs/2509.04270 https://arxiv.org…

All Ordinals are Cop-Robber Ordinals
The game of cops and robbers, played on a fixed graph $G$, is a two-player game, where the cop and the robber (the players) take turns in moving to adjacent vertices. The game finishes if the cop lands on the robber's vertex. In that case we say that the cop wins. If the cop can always win, regardless of the starting positions, we say that $G$ is a cop-win graph. For a finite cop-win graph $G$ we can ask for the minimum number $n$ such that, regardless of the starting positions, the game will…

‘Very Unfair’: Black Woman Called 911 for Help, Only to be Arrested After Cop Spots Something In Her Home That She Begged Landlord for Months to Fix
https://atlantablackstar.com/2025/10/05/black-woman-called-911-for-help-only-to-be-arrested-after-cop-spots-something-in-her-home/

"Cop out? Anthony Albanese wants to host the next global climate summit – so why isn’t he attending this one?"
#COP30 #ClimateSummit

World will overshoot 1.5C climate goal, UN says (Reuters)
https://www.reuters.com/sustainability/cop/world-will-overshoot-15c-climate-goal-un-says-2025-11-04/
http://www.memeorandum.com/251104/p44#a251104p44

Mekke Okereke wrote:
Here's a challenge: find an adult Black man that has spent any significant time in New York as a teenager, that *hasn't* ever been detained by a cop with a gun.
This isn't rhetorical, and it's not a trick question.
It is possible to find!
A decent percent of Black men in New York have avoided this!
About 10%!

A Classification of Winning Sets of Cops in $\mathbb{Z}^n$
Kenzie Fontenot, Iris Nguyen, Cody Olsen
https://arxiv.org/abs/2509.03464 https://arxiv.org/pdf/…

A Classification of Winning Sets of Cops in $\mathbb{Z}^n$
The game of Cops and Robbers is a pursuit-evasion game on graphs that has been extensively studied in finite settings, particularly through the concept of cop number. In this paper, we explore infinite variants of the game, focusing on the lattice graph $\mathbb{Z}^n$. Since the cop number of $\mathbb{Z}^n$ is infinite, we shift attention to the notion of \emph{cop density}, examining how sparsely cops may be placed while still guaranteeing capture. We introduce the framework of \emph{coordinat…

40 years ago tonight, the #GratefulDead in richmond. a pretty fun evening with an obnoxious cop scene (& perhaps even police riot) & bad gatecrashing that makes it all the way to the AP news wire. fall ’85, show #7.
soundboard: h…

For the millionth time, #FuckEricAdams. He was always a goddamned fascist republican cop, and the fact that he ran and won as a democrat speaks volumes about how fucked up NYC voting is. https://mstdn.social/@GottaLaff…

Global coral bleaching crisis spreads after hottest year, scientists say | Reuters
https://www.reuters.com/sustainability/cop/global-coral-bleaching-crisis-spreads-after-hottest-year-scientists-say-2025-04-23/

OpenAI's Sora 2 generates copyright infringing content, including numerous AI-generated clips featuring SpongeBob, Pokémon, Mario, Rick and Morty, and Star Wars (Jason Koebler/404 Media)
https://www.404media.co/openais-sora-2-cop

OpenAI’s Sora 2 Copyright Infringement Machine Features Nazi SpongeBobs and Criminal Pikachus
The main use of Sora appears to generate brainrot of major beloved copyrighted characters, to say nothing of the millions of articles, images, and videos OpenAI has scraped.

OpenAI's Sora 2 openly features copyright infringing content, including numerous AI-generated clips of SpongeBob, Pikachu, and Mario (Jason Koebler/404 Media)
https://www.404media.co/openais-sora-2-copyright-infringeme…

OpenAI’s Sora 2 Copyright Infringement Machine Features Nazi SpongeBobs and Criminal Pikachus
The main use of Sora appears to generate brainrot of major beloved copyrighted characters, to say nothing of the millions of articles, images, and videos OpenAI has scraped.

Haymarket Books has ebooks on sale for $2 until Nov. 7. Some of my favorite books published by them are:
Abolish Rent: on the potential of tenant organizing
Let This Radicalize You: a guide to activism over the long haul
No Cop City, No Cop World: lessons from Atlanta's Cop City fight
Perfect Victims: unpacks anti-Palestinian narratives you may not realize you've internalized

Haymarket Ebooks on sale for $2!
At Haymarket, our mission is to publish books that contribute to struggles for social and economic justice. We strive to make our books a vibrant and organic part of social movements, and we believe that collective study plays a crucial role in sustaining engaged, effective, and durable left-wing organizations and communities. To that end, we aim to make our books accessible to anyone who might find them valuable. Until Friday, November 7th, ALL Haymarket ebooks are 80% Off. That means …

"At the last #Cop climate summit in Baku, there were 1,773 coal, oil and gas lobbyists, a larger contingent than all but three countries. The group said this led to a watering down of penalties for big emitters, backtracking on international commitments to transition away from fossil fuels, and domestic challenges to carbon taxes and legislation designed to reduce emissions"

US proposes zero new protections for traded wildlife at upcoming CITES CoP https://news.mongabay.com/2025/08/us-proposes-zero-new-protections-for-traded-wildlife-at-upcoming-cites-cop/

US proposes zero new protections for traded wildlife at upcoming CITES CoP
At the end of 2025, representatives from 185 countries will convene in Uzbekistan to discuss the fate of sharks, African hornbills, hyenas, vultures, palm trees and other threatened species. The group’s decisions will, in part, decide the survival and the future of widely traded fauna and flora as they vote whether to set limits on or […]

I'm not a perfect parent, but tonight while trick-or-treating my kid refused candy from an on-duty cop because "they're just trying to convince people that they're helpful" so we must be doing something right
#acab #copaganda

40 years ago today, the grateful dead in richmond, a bad cop scene that turns ugly the next night. fall ’85, show #6. a letdown after the wild halloween & a baffling-to-me choice for release, but now “dick’s picks 21”: https://www.youtube.com/watch?v=-FyUeuNKwc

🇺🇦 #NowPlaying on KEXP's #Expansions
Art of Tones:
🎵 Gold
#ArtofTones
https://kardano.bandcamp.com/track/copper-n-gold-extended-mix
https://open.spotify.com/track/2yrDTdiQDnVO7LSVvQws1x

Washington folks: anybody know the history of WAC 308-330-500 and adjacent statutes? What was the rationale?
When did it stop being enforced? And why? It's clearly a dead law, I've never seen a bicycle license plate in the ten years I've lived here. Although I guess a cop in a bad mood could probably still ticket you for violating it if they really wanted to.

OpenAI’s Sora 2 Copyright Infringement Machine Features Nazi SpongeBobs and Criminal Pikachus https://www.404media.co/openais-sora-2-copyright-infringement-machine-features-nazi-spongebobs-and-criminal-pikachus/

Inverse Optimization Latent Variable Models for Learning Costs Applied to Route Problems
Alan A. Lahoud, Erik Schaffernicht, Johannes A. Stork
https://arxiv.org/abs/2509.15999 h…

Inverse Optimization Latent Variable Models for Learning Costs Applied to Route Problems
Learning representations for solutions of constrained optimization problems (COPs) with unknown cost functions is challenging, as models like (Variational) Autoencoders struggle to enforce constraints when decoding structured outputs. We propose an Inverse Optimization Latent Variable Model (IO-LVM) that learns a latent space of COP cost functions from observed solutions and reconstructs feasible outputs by solving a COP with a solver in the loop. Our approach leverages estimated gradients of a…

No Cop on the Beat -- Outside Chicago, a father of seven was too embarrassed to tell ... (Bloomberg)
https://www.bloomberg.com/graphics/2025-zombie-home-mortgage-debt-collection-investigation/?accessToken=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzb3VyY2UiOiJTdWJzY3JpYmVyR2lmdGVkQXJ0aWNsZSIsImlhdCI6MTc2MTgzNzY5MiwiZXhwIjoxNzYyNDQyNDkyLCJhcnRpY2xlSWQiOiJUNFhUMEFHUEZIVk4wMCIsImJjb25uZWN0SWQiOiIyQjE3NzFFOTlEODc0QzRDOTY1Njg1RTZBQkJGM0QwRCJ9.MGEYAk5yUr4RoVphaje_HfLCS4hFLs7MTsVwyacq-S0
http://www.memeorandum.com/251030/p75#a251030p75

‘Outraged’: White Cop Accused of Terrorizing Black Citizens Was Paid $60K to Quietly Resign—But He Was Hired Again, and One of His Victims Just Got a Settlement
https://atlantablackstar.com/2025/08/25/cop-accused-of-terrorizing-black-citizens-was-paid-60k-to-quietly-resignbut-he-was-hired-again-and-one-of-his-victims-just-got-a-settlement/

🇺🇦 Auf radioeins läuft...
Freakpower:
🎵 Turn On, Tune In, Cop Out
#NowPlaying #Freakpower
https://open.spotify.com/track/0lzFRfzmsKk6y5Vd7ExQfi

Kurz vor der #Klimakonferenz in #Brasilien haben viele Staaten, darunter auch die #EU, ihre #Klimaziele

Experte: Die wenigsten Länder haben vor der COP ihre Klimaziele festgelegt
Ein neuer UN-Bericht zeigt: Viele Länder, darunter auch EU-Staaten, haben die Abgabefrist zur Festlegung ihrer Klimaziele verpasst. Kein gutes Signal kurz vor der Konferenz, sagt Klimaforscher Niklas Höhne.

Most countries fail to submit new climate pledges ahead of summit #climate

Climate plans don't limit dangerous warming, UN says ahead of COP
The UN's review of national climate plans shows the world is well off track to limit warming

Starting up my rewatch of Minority Report. It's been a LOT of years.
#movies #scifi

Minority Report (2002)
John Anderton is a top 'Precrime' cop in the late-21st century, when technology can predict crimes before they're committed. But Anderton becomes the quarry when another investigator targets him for a murder charge.

They're a 10 but never slid across a cop car's hood, as it rolled through an intersection, while skateboarding to a male escort's apartment for a date, then bailed while they fled the police.

On Saturday night, we were driving behind a cop down Hverfisgata and every time they saw someone parked on the sidewalk, they told them to get a move on.
Then the cops pull up on the sidewalk. 🤦‍♂️

Sit back, relax and let the formulas write themselves with Copilot in Excel. Starting from scratch has never been easier. Give it a try!
#Excel

On Website Technicals (2025-02) - Tech updates: FOSDEM, archive bandwidth, grid 2026 intensities, GBGI, L hours, BIND died, data purge, storage CoP up, Pagefind, kgCO2-to-date, Thermino. - https://www.earth.org.uk/note-on-site-technicals-93.html

On Website Technicals (2025-02)
Tech updates: FOSDEM, archive bandwidth, grid 2026 intensities, GBGI, L hours, BIND died, data purge, storage CoP up, Pagefind, kgCO2-to-date, Thermino.

Today is #WorldStatisticsDay, and the 20th anniversary of the European Statistics Code of Practice (CoP). This is a code of conduct that ensures that official statistics in Europe are produced and made available independently, with high data quality and according to the same standards:

Laut Tages Anzeiger gibt es keine Klimakrise mehr, auch dank KI. Leider ist der Artikel ernst gemeint.
https://www.tagesanzeiger.ch/cop-klimakonferenz-bill-gates-fordert-neue-strategie-317802507139

ICE arrests suburban Chicago cop, accusing him of being an unlawful immigrant from Montenegro
https://www.cnn.com/2025/10/16/politics/ice-arrests-chicago-suburb-police-officer-hanover-park

Tell me the UK is a dystopian police state without telling me.

Outcry as MAGA rioter says he 'should have went harder' on Capitol cop - Raw Story
https://www.rawstory.com/trump-maga-condemn-this-guy/

Trying to say this word was my own personal a-cop-al-ypse. Thanks to Jan for finding it as hilarious as I did 😅

A very strict, yet also a very good cop 👮: CoP11 🧮. What?
Here's another great blog by Axle Energy on device-level measurements, which are ideal for unlocking residential flexibility from sources such as home batteries, EV charging, hot water tanks and heat pumps.
https://cop11.axle.energy

🇺🇦 #NowPlaying on KEXP's #AfternoonShow
Fugazi:
🎵 Great Cop
#Fugazi
https://ryanallen.bandcamp.com/track/great-cop-fugazi
https://open.spotify.com/track/5jVVzwNtFM2gc2Xe3uTwYe

Curzon Ahlborn Type Efficiency in a Brownian Heat Engine with Exponential Temperature Profile
Mesfin Asfaw Taye
https://arxiv.org/abs/2509.20602 https://ar…

Curzon Ahlborn Type Efficiency in a Brownian Heat Engine with Exponential Temperature Profile
We investigate a Brownian heat engine wherein a particle moves through a periodic ratchet potential under an exponentially decreasing temperature profile, a spatial configuration that closely resembles experimentally realizable conditions such as laser-induced thermal gradients and thermoplasmonic heating. This model yields exact analytical expressions for the particle current, thermodynamic efficiency, entropy production, and coefficient of performance (COP), and uniquely recovers the Curzon A…

DOJ Staffer Who Threw Sandwich at D.C. Cop Fired, Charged With Felony Assault (Nikki McCann Ramirez/Rolling Stone)
https://www.rollingstone.com/politics/politics-news/doj-employee-threw-sandwich-dc-cop-charged-assault-1235407854/
http://www.memeorandum.com/250814/p88#a250814p88

DOGE is still slashing government contracts, with around $2.2 billion in cyber contracts cut through August 2025.
Check out today's Metacurity for more on which contracts have been cut and other top infosec developments you should know, including
--18 popular JavaScript code packages were compromised by malware,
--WhatsApp former security chief accuses Meta of security and privacy flaws,
--Treasury sanctions Myanmar and Cambodia scam businesses and people,
--IC…

DOGE has slashed government cyber contracts by $2.2 billion so far
18 popular JavaScript code packages compromised by malware, WhatsApp ex-security chief accuses Meta of security and privacy flaws, Treasury sanctions Myanmar & Cambodia scam workers and firms, ICE is spending $4m on facial to hunt for cop assaulters, Hacked Boris Johnson files leaked, much more

SF Supervisor Matt Dorsey was one of 15 BCDC Commissioners who voted to take away weekday access to the Richmond-San Rafael Bridge bike path.
Dorsey said cyclists need to learn to compromise more. So much for his bragging about using bikeshare 🚮
https://richmond…

Richmond bridge bike lane access to be reduced starting this fall
The change to Thursday afternoons through Sundays, starting in October, lets transportation officials test the impact on traffic congestion.

Feds Used Local Cop's Password to Do Immigration Surveillance With Flock Cameras https://www.404media.co/feds-used-local-cops-password-to-do-immigration-surveillance-with-flock-cameras/

NYPD Cop is sick and tired of the fascist paramilitary invaders racial profiling and harassing him.
Source: #politics

@… That’s such a good question.
A bit of a cop-out perhaps, but my first move would be observation.
In which ways is the code of lacking quality today? Is it focused around specific teams, or features, or business processes?
How does it get that way? Interviews would be useful, but also noting that self reporting can be inaccur…

I don’t remember this episode of The Archers???
https://kolektiva.social/@igd_news/114997281185597838

Cop number of partial cubes
Nicholas Crawford, Vesna Ir\v{s}i\v{c} Chenoweth
https://arxiv.org/abs/2510.06832 https://arxiv.org/pdf/2510.06832

Cop number of partial cubes
The game of Cops and Robbers on graphs is a well-studied pursuit--evasion model whose central parameter, the cop number, captures the minimum number of pursuers required to guarantee capture of an adversary on a given graph. While the cop number has been determined for many classical graph families, relatively little is known about the important class of partial cubes, i.e., isometric subgraphs of hypercubes. In this paper, we establish a lower bound for the cop number of partial cubes and pr…

Everyone has their own risk profile and security posture, but these "mobile IDs" are a bad idea. In order to show your mobile ID to, say, a cop who pulls you over, you have to hand them your _unlocked phone_. #ItsATrap

Arkansas mobile ID now available in Samsung, Google Wallets
Access to your Arkansas driver’s license is just a tap away.

'Deliberate Indifference': Oregon Cop Left Dying Man Inside Patrol Car to Go Inside Police Station to Watch TikToks and Send Intimate Texts About ‘Snuggles,’ Federal Lawsuit Alleges
https://atlantablackstar.com/2025/08/17/oregon-cop-left-dying-man-inside-patrol-car/

Finished “Lloyd McNeil’s Last Ride” by Will Leitch.
Lloyd McNeil is a cop who has just been diagnosed with a terminal illness and weeks to live. Realizing his paltry assets and limited life insurance won’t help his son much, he learns that being killed on duty absolutely will. A plan is hatched. But charging into dangerous situations keeps making him a hero instead.
Enjoyable. Leitch always writes great characters.
4/5 stars ⭐️ ⭐️ ⭐️ ⭐️

Lloyd McNeil's Last Ride: A Novel
SOON TO BE A MAJOR MOTION PICTURE "Lloyd McNeil's Last…

Day 16: Mayra Cuevas & Marie Marquardt
Okay so this is cheating, but they're co-authors of multiple books together, and there's no way for me to separate their contributions... I've already got too many authors I'd like to list, so why not?
I read their book "Does My Body Offend You?" and absolutely loved it; it's a celebration of teen activism while also being a deep exploration of feminist issues through practical situations that bring out the complicated side of things, which the authors refuse to reduce back to a simple formulaic answer. It has a supporting cast of appropriately-complex male characters that help in exploring the nuances of issues like the line between female empowerment & male gratification, and it brings race and macho culture into the conversion as well.
CW for sexual harassment & deep discussion of the resultant trauma.
I'll cheat again here to sneak in mention of two male authors whose work resonates with theirs: Mark Oshiro's "Anger is a Gift" has a more pessimistic/complex take on teen activism along with a gay romance (CW for racist cop murder), while Jeremy Whitley's graphic novel "Navigating With You" deals with queer romance & disability, while having a main character pairing that echoes those from "Does My Body Offend You?" in a lot of ways. Another connection (to non-men authors this time) is with "Go With the Flow" by Lily Williams and Karen Schneemann. Their graphic novel about teen activism and periods is a bit more didactic and has a much lighter tone, but it does necessarily have some overlapping themes.
To bring it back to Cuevas & Marquhardt, their writing is great and their ability to discuss such complex topics with such nuance, all wrapped up in a story that feels completely natural, is amazing to me, and makes their book feel like one of the most valuable to recommend to others.
In writing this I've realized a grave oversight in the list so far that I'll have to correct tomorrow, but I'm quickly running out of days. The didn't-quite-make-it list is going to be full of more excellent authors, and I'm honestly starting to wonder whether it might actually be harder to name 20 male authors I respect now that I've found the sense to be mostly somewhere between disgusted and disappointed with so many of the male authors I enjoyed as a teen.
#20AuthorsNoMen (cheating a bit)

Why this cop backs Zohran Mamdani (Shamsul Haque/New York Daily News)
https://www.nydailynews.com/2025/09/07/why-this-cop-backs-zohran-mamdani/
http://www.memeorandum.com/250908/p47#a250908p47

A very strict, yet also a very good cop 👮: CoP11 🧮. What?
Here's another great blog by Axle Energy on device-level measurements, which are ideal for unlocking residential flexibility from sources such as home batteries, EV charging, hot water tanks and heat pumps.
https://cop11.axle.energy

🇺🇦 Auf radioeins läuft...
Freakpower:
🎵 Turn On, Tune In, Cop Out
#NowPlaying #Freakpower
https://open.spotify.com/track/0lzFRfzmsKk6y5Vd7ExQfi

🇺🇦 #NowPlaying on KEXP's #VarietyMix
Samm Bennett and Chunk:
🎵 New York Transit Cop
#SammBennettandChunk

Low degree sum-of-squares bounds for the stability number: a copositive approach
Luis Felipe Vargas, Juan C. Vera, Peter J. C. Dickinson
https://arxiv.org/abs/2509.04949 https:/…

Low degree sum-of-squares bounds for the stability number: a copositive approach
The stability number of a graph $G$, denoted as $α(G)$, is the maximum size of an independent (stable) set in $G$. Semidefinite programming (SDP) methods, which originated from Lovász's theta number and expanded through lift-and-project hierarchies as well as sums of squares (SOS) relaxations, provide powerful tools for approximating $α(G)$. We build upon the copositive formulation of $α(G)$ and introduce a novel SDP-based hierarchy of inner approximations to the copositive cone COP$_n$, …

Cops and Robbers on Graphs with Path Constraints
Alexander Clow, Erin Meger
https://arxiv.org/abs/2509.10941 https://arxiv.org/pdf/2509.10941

Cops and Robbers on Graphs with Path Constraints
In 2019, Sivaraman conjectured that every $P_k$-free graph has cop number at most $k-3$. In the same year, Liu proved this conjecture for $(P_k,\text{claw})$-free graphs. Recently Chudnovsky, Norin, Seymour, and Turcotte proved this conjecture for $P_5$-free graphs. For $k\geq 6$ the conjecture remains widely opened. Let the $E$ graph be the $\text{claw}$ with two subdivided edges. We show that all $(P_k,E)$-free graphs have cop number at most $\lceil \frac{k-1}{2} \rceil +3$, which improves an…

Feasibility-Aware Decision-Focused Learning for Predicting Parameters in the Constraints
Jayanta Mandi, Marianne Defresne, Senne Berden, Tias Guns
https://arxiv.org/abs/2510.04951

Feasibility-Aware Decision-Focused Learning for Predicting Parameters in the Constraints
When some parameters of a constrained optimization problem (COP) are uncertain, this gives rise to a predict-then-optimize (PtO) problem, comprising two stages -- the prediction of the unknown parameters from contextual information and the subsequent optimization using those predicted parameters. Decision-focused learning (DFL) implements the first stage by training a machine learning (ML) model to optimize the quality of the decisions made using the predicted parameters. When parameters in the…

“I chaired the US Federal Election Commission. Now there’s no cop on the beat” - Election Law Blog
https://electionlawblog.org/?p=152525

CBS' Conservative Cop (Oliver Darcy/Status)
https://www.status.news/p/cbs-news-ombudsman-kenneth-weinstein
http://www.memeorandum.com/250909/p127#a250909p127

Navarro accuses DOJ of cop-out in decision to drop his case without explanation (Emily Hallas/Washington Examiner)
https://www.washingtonexaminer.com/news/justice/3796794/peter-navarro-doj-decision-drop-his-case-without-explanation/
http://www.memeorandum.com/250908/p38#a250908p38

Ya know, Phil Davis does comedy really well. I'd only ever seen him in cop shows before his appearance in #trying. #PhilDavis #comedy #television

The capture time in the game of cops and many robbers
Miha Gyergyek, Vesna Ir\v{s}i\v{c} Chenoweth
https://arxiv.org/abs/2509.10022 https://arxiv.org/pdf/2…

The capture time in the game of cops and many robbers
The game of cops and robber is a pursuit-evasion game played on graphs that has been extensively studied. Traditionally the game is played with one or more cops and only one robber, but in this paper we consider the game played with multiple robbers, with rules allowing for consecutive capture of the robbers. While the cop number remains the same, the capture time can differ drastically compared to the game played with one robber. In this paper we present general upper bounds for the capture ti…

Limited-visibility Cops and Robbers on Hamming graphs
John Jones, William B. Kinnersley
https://arxiv.org/abs/2509.05196 https://arxiv.org/pdf/2509.05196…

Limited-visibility Cops and Robbers on Hamming graphs
In the classic game of Cops and Robbers, a team of cops pursues a robber through a graph. The traditional model of Cops and Robbers operates under the assumption that the cops know the robber's location at all times. Recently, however, there has been growing interest in models wherein the cops have only partial information about the robber's location. In this paper, we study the limited-visibility variant of Cops and Robbers, in which the cops only know the robber's position if some cop is with…