Tootfinder

OpenAI says ChatGPT will now ditch em dashes if users tell it to; em dashes have become telltale signs that supposedly signals text written by AI (Sarah Perez/TechCrunch)
https://techcrunch.com/2025/11/14/openai-says-its-fixed-chatgpts-em-dash-problem/

https://www.smbc-comics.com/comic/the-star-trek-problem
You don't die because consciousness is data and the data is transferred from one point to another. Problem solved!
Aka the transhumanist solution.

"The fundamental problem is this: that most of the means of communication are owned or influenced by the very rich. If democracy is the problem capital is always trying to solve, propaganda is part of the solution. Like the kings and empire-builders of the past, they use their platforms to project the claims that suit them and suppress the claims that don’t. This means boosting right and far-right movements, which defend wealth and power..." -- George Monbiot.

Inequality is a problem on the scale of climate change, say eminent economists https://www.politico.eu/article/inequality-global-problem-needs-global-answer-say-eminent-economists/

Orthogonal polynomials, quantum walks and the Prouhet-Tarry-Escott problem
Frederico Can\c{c}ado, Gabriel Coutinho, Thom\'as Jung Spier
https://arxiv.org/abs/2509.09948 http…

Berlin-based Mirelo, whose AI models can interpret video content to add matching sound effects, raised a $41M seed led by Index and a16z, after a $3M pre-seed (Anna Heim/TechCrunch)
https://techcrunch.com/2025/12/15/mirelo-raises-41m…

The Bin Packing Problem with Setups: Formulation, Structural Properties and Computational Insights
Roberto Baldacci, Fabio Ciccarelli, Stefano Conglio, Valerio Dose, Fabio Furini
https://arxiv.org/abs/2509.10075

KI soll 600.000 fehlende Beamte ersetzen? Klingt wie der Plan eines Startups, das gerade seine erste Fördermillion verbrannt hat.
Problem 1: KI ist kein Zauberstab.
Problem 2: Selbst wenn – die Infrastruktur dahinter gleicht oft noch einem Flickenteppich aus den 90ern.
Problem 3: Bürger wollen keine Algorithmen. Sie wollen funktionierende Behördengänge. Wie bei Amazon. Nur ohne Prime-Mitgliedschaft.

A Fast-Converging Decentralized Approach to the Weighted Minimum Vertex Cover Problem
Matteo Mordacchini, Emanuele Carlini, Patrizio Dazzi
https://arxiv.org/abs/2510.11697 https…

A risk-sensitive ergodic singular stochastic control problem
Justin Gwee, Mihail Zervos
https://arxiv.org/abs/2509.09835 https://arxiv.org/pdf/2509.09835…

On the Linearization of Certain Singularities of Nijenhuis Operators
Andrey Yu. Konyaev
https://arxiv.org/abs/2509.10155 https://arxiv.org/pdf/2509.10155…

Exploring Artificial Intelligence and Culture: Methodology for a comparative study of AI's impact on norms, trust, and problem-solving across academic and business environments
Matthias Huemmer, Theophile Shyiramunda, Michelle J. Cummings-Koether
https://arxiv.org/abs/2510.11530

Functional a posteriori estimates for the fractional Laplacian problem
Alexander Nazarov, Sergey Repin
https://arxiv.org/abs/2510.12664 https://arxiv.org/p…

2038 wird zur Rechtsfrage: Ein Pariser Gericht macht Alstom für den Y2K38-Bug haftbar. Acht Metro-Linien und die RER A könnten sonst ab 19.1.2038 ausfallen. Das Urteil ist ein Weckruf für die ganze Branche.
#y2k38 #y2038 #y2038bug

Warum die Elektromobilität nur langsam abhebt
Die Stromerzahlen steigen, allerdings langsamer als einst erwartet. Das ist ein Problem für Autokonzerne und EU. Woran es liegt.
https://www.…

The isomorphism problem for finitely generated bi-orderable groups
Filippo Calderoni, Adam Clay
https://arxiv.org/abs/2510.10673 https://arxiv.org/pdf/2510…

A Solution to the Hierarchy Problem with Non-Linear Quantum Mechanics
David E. Kaplan, Surjeet Rajendran
https://arxiv.org/abs/2510.12030 https://arxiv.org…

Crane Scheduling Problem with Energy Saving
Yixiong Gao, Florian Jaehn, Minming Li, Wenhao Ma, Xinbo Zhang
https://arxiv.org/abs/2510.10989 https://arxiv.o…

🌊 Offshore Pumped Hydro Could Solve Clean Energy's Biggest Problem
https://oilprice.com/Energy/Energy-General/Offshore-Pumped-Hydro-Could-Solve-Clean-Energys-Biggest-Problem.html

Generalizing Beyond Suboptimality: Offline Reinforcement Learning Learns Effective Scheduling through Random Data
Jesse van Remmerden, Zaharah Bukhsh, Yingqian Zhang
https://arxiv.org/abs/2509.10303

I have the same problem with the additional problem of reading past some of his personal history - which I wish we did not know.
https://thewalrus.ca/i-have-a-wodehouse-problem-the-problem-is-i-cant-stop-reading-him/

On the Complexity of Stationary Nash Equilibria in Discounted Perfect Information Stochastic Games
Kristoffer Arnsfelt Hansen, Xinhao Nie
https://arxiv.org/abs/2510.11550 https:…

Locally Permuted Low Rank Column-wise Sensing
Ahmed Ali Abbasi, Namrata Vaswani
https://arxiv.org/abs/2509.09820 https://arxiv.org/pdf/2509.09820

Modular Counting over 3-Element and Conservative Domains
Andrei A. Bulatov, Amirhossein Kazeminia
https://arxiv.org/abs/2510.09950 https://arxiv.org/pdf/25…

Replaced article(s) found for cs.AI. https://arxiv.org/list/cs.AI/new
[8/14]:
- From Problem-Solving to Teaching Problem-Solving: Aligning LLMs with Pedagogy using Reinforcement...
David Dinucu-Jianu, Jakub Macina, Nico Daheim, Ido Hakimi, Iryna Gurevych, Mrinmaya Sachan

Semi-interval Comparison Constraints in Query Containment and Their Impact on Certain Answer Computation
Foto N. Afrati, Matthew Damigos
https://arxiv.org/abs/2509.10138 https:/…

A streamline upwind/Petrov-Galerkin method for the magnetic advection-diffusion problem
Haochen Li, Yangfan Luo, Jindong Wang, Shuonan Wu
https://arxiv.org/abs/2509.09913 https:…

Over on #Bluesky there was a bit of a controversy over the suspension of Sarah Kendzior. I thought it was an interestingly nontrivial moderation problem, so I wrote up a little case study on how this would have been handled on Mastodon: http…

Quantitative Linear Stability Analysis of Elliptic Relative Equilibria in the Planar N-Body Problem
Xijun Hu, Yuwei Ou, Jiexin Sun
https://arxiv.org/abs/2509.09809 https://

Katie Porter here.
Trump has no problem creating chaos and pain for Americans until he gets his way.
Democrats need to use our power
– just like we did last week on Election Day
– to send a clear message:
𝗪𝗲 𝘄𝗼𝗻’𝘁 𝘀𝘁𝗮𝗻𝗱 𝗳𝗼𝗿 𝗵𝗶𝗴𝗵𝗲𝗿 𝗰𝗼𝘀𝘁𝘀 𝗮𝗻𝗱 𝗵𝗲𝗮𝗹𝘁𝗵 𝗰𝗮𝗿𝗲 𝗽𝗿𝗲𝗺𝗶𝘂𝗺𝘀 𝘄𝗵𝗶𝗹𝗲 𝗯𝗶𝗹𝗹𝗶𝗼𝗻𝗮𝗶𝗿𝗲𝘀 𝗴𝗲𝘁 𝗲𝘃𝗲𝗻 𝙧𝙞𝙘𝙝𝙚𝙧. 
I’ve spent my career protecting people and taking on Wall Street’s corporate greed. 
I know what it takes to fight, and to win
– and as California…

Relative Gieseker's problem on $F$-divided bundles
Adrian Langer
https://arxiv.org/abs/2510.10583 https://arxiv.org/pdf/2510.10583

Universal Adaptive Environment Discovery
Madi Matymov, Ba-Hien Tran, Maurizio Filippone
https://arxiv.org/abs/2510.12547 https://arxiv.org/pdf/2510.12547…

Automated Tuning for Diffusion Inverse Problem Solvers without Generative Prior Retraining
Ya\c{s}ar Utku Al\c{c}alar, Junno Yun, Mehmet Ak\c{c}akaya
https://arxiv.org/abs/2509.09880

A geometrical approach to solve the proximity of a point to an axisymmetric quadric in space
Bibekananda Patra, Aditya Mahesh Kolte, Sandipan Bandyopadhyay
https://arxiv.org/abs/2510.08973

@… That’s what I do, but I also see the problem in hybrid work meetings in conference rooms. Definitely something I also recommend, but alas not everyone has multiple monitors.

MPCitH-based Signatures from Restricted Decoding Problems
Michele Battagliola, Sebastian Bitzer, Antonia Wachter-Zeh, Violetta Weger
https://arxiv.org/abs/2510.11224 https://

Ganze Basketball-Spiele der NBA bald immersiv auf der Vision Pro
Apple wird zusammen mit einem US-Kabelanbieter erstmals komplette Basketballpartien mit der Blackmagic URSA abfilmen. Das Problem sind Copyright-Restriktionen.

Das Problem mit dem "gesunden Menschenverstand" ist, dass er ein Bauchgefühl ist. Und alle, die ein anderes Bauchgefühl haben, werden damit automatisch als entweder nicht gesund oder nicht bei Verstand deklariert. #LastTröt

Anna-Karin Hatts avgång visar att hat och hot mot förtroendevalda är ett strukturellt problem. Plattformars algoritmer belönar konflikt. Vi kan inte lägga ansvaret på individen att stå emot strukturen. Dags att förändra den.
https://carlheath.se/en-tanke-om-en-avgang-n…

Habe seit Monaten das Problem, dass neue Geräte nicht ins WLAN einloggen können. Und heute rausgefunden, dass der Router nur maximal 32 WLAN-Geräte zulässt. Wer kommt denn auf so ne bekloppte Idee?!?🤬🤯

Quantum Annealing for Staff Scheduling in Educational Environments
Alessia Ciacco, Francesca Guerriero, Eneko Osaba
https://arxiv.org/abs/2510.12278 https://

If I had a penny for every time I heard something like
"We're going to track increases in productivity that we gain by adopting GenAI"
1. So you're assuming it's an increase
2. Against what control group
3. With no acknowledgement of confounding variables or experiment design
4. Around the...famously open problem of measuring software engineering productivity?

Knowing Unknowns in an Age of Information Overload
Saurabh Khanna
https://arxiv.org/abs/2510.10413 https://arxiv.org/pdf/2510.10413

"Wood-burning stoves face new restrictions in the U.K.—but a loophole from Britain's smog years is fueling the problem"
#UK #UnitedKingdom #WoodBurner

DaRon Bland’s coverage numbers reveal a serious Matt Eberflus problem https://www.si.com/nfl/cowboys/onsi/news/daron-bland-coverage-numbers-reveal-serious-matt-eberflus-problem

Average Kernel Sizes -- Computable Sharp Accuracy Bounds for Inverse Problems
Nina M. Gottschling, David Iagaru, Jakob Gawlikowski, Ioannis Sgouralis
https://arxiv.org/abs/2510.10229

<Phase> no... I musn't have any more coffee !!! ;)
<Simunye> sure yu do Phase :)
<Phase> you really want me bouncing off the ceiling?
<Simunye> yesh :)
<kira_> bouncing off the ceiling is gewd
<Phase> ok, that was a silly question
<kira_> it's splatting on the floor that's the problem.

My old HP laptop, 8470p is getting keyboard problems; I guess it's a hardware problem - I guess it could be software (on Debian trixie). Tricky to know where it is - could just be too many crumbs, but it seems more broken::
atkbd_receive_byte: 122 callbacks suppressed
atkbd serio0: Spurious NAK on isa0060/serio0. Some program might be trying to access hardware directly.
atkbd serio0: Failed to deactivate keyboard on isa0060/serio0
atkbd serio0: Failed to enable key…

GOP pats itself on the back for not fixing a problem it created
#news

#SteadySupporter
Wieso geben #Sprachmodelle oft selbstbewusst falsche Antworten?
Wenn Raten besser bewertet wird als Ehrlichkeit, droht Vertrauensverlust. Wie lässt sich das ändern, und warum ist „Ich weiß es nicht“ bisher ein Problem für KI-Modelle? Eine neue Studie zeigt,…

@… Hasn’t been a problem yet for me personally.

Als wir in dies Wohnung gezogen sind dachten wir ok cool, es gibt hier diese versenkbaren Mülltonnen.
Little did we know
Das Problem ist:
1. die Leute sind zu blöd. Wenn der Sack recht groß ist, dann fällt der nicht nur nicht nach unten beim schließen der Trommel, er verkanntet dann darin.
Danach hört man das ganze Wochenende Leute an dem Ding rütteln und zwar so laut, dass ich davon wach werde, danach werfen sie den Sack einfach daneben. Das machen dann 5 Leute, fertig…

Performance of Gaussian Boson Sampling on Planted Bipartite Clique Detection
Yu-Zhen Janice Chen, Laurent Massouli\'e, Don Towsley
https://arxiv.org/abs/2510.12774 https://

After months of not using it, I dusted off my Matrix account thanks to the room created by @… and I encountered a problem due to a loop that prevented me from completing the verification of some devices. Although I solved it, it is certainly not an app suitable for non-techies.
I guess Matrix isn't designed for them, to begin with. However, maybe there…

Endlösung der Stadtbildfrage als entscheidendes Element im Kampf gegen Rechtspopulismus? Naziopa wäre so stolz.
https://bsky.app/profile/did:plc:nqk7jmnrywou7anuefj3ezzd/post/3m35hz74xdk2j

I Am Experiencing A Feeling And I Would Like It To Stop
right right ok let's try watching some monster factory
that's always how I can gauge how Serious the problem is like if I do not Laff at da monster factory then I know it's some serious shit

If Windows 11 was better than Windows 10 there wouldn't be a fucking problem, would there?

rest in paint 🕯️ https://criminalmindedartist.neocities.org/rip

RE: https://mastodon.social/@CentralBylines/115543613034480430
This is the big problem with action on climate change: the people in a position to lose out have huge financial resources, and they're more than willing to use them, even with the si…

@… below, is the apparent mismatch between 580.95.x and 580.105.x likely to cause an actual problem?
Or does it simply _look_ a little strange?
Thanks
New packages to be INSTALLED:
drm-66-kmod: 6.6.25.1500068_8 [FreeBSD-ports-kmods]
egl-wayland: 1.1.20 [FreeBSD-ports]
nvidia-driver: 580.95.05 [FreeBSD-port…

Equivalence between solvability of the Dirichlet and Regularity problem under an $L^1$ Carleson condition on $\partial_t A$
Martin Ulmer
https://arxiv.org/abs/2509.10328 https:/…

Flip side of this: ~3 years ago, I got automated calls from “RBC Visa”. I ignored them.
Then my card stopped working.
So I called the number on the back of my card and said as much.
The agent gave me a hard time: “So you JUST IGNORED our calls about this?”
“No; I didn’t know they were you calling.”
“How did you not know they were us?! It says ‘this is RBC Visa’ when you answer!”
“That’s indistinguishable from fraud.”
He did not like that. He thought …

A Morphology-Adaptive Random Feature Method for Inverse Source Problem of the Helmholtz Equation
Xinwei Hu, Jingrun Chen, Haijun Yu
https://arxiv.org/abs/2510.09213 https://

LLM-Based Instance-Driven Heuristic Bias In the Context of a Biased Random Key Genetic Algorithm
Camilo Chac\'on Sartori, Mart\'in Isla Pino, Pedro Pinacho-Davidson, Christian Blum
https://arxiv.org/abs/2509.09707

Die Bundeswehr befindet sich im digitalen Aufrüstungsmodus und sucht händeringend nach IT-Fachkräften! 💻 Mit 139.500 Bewerbungen im letzten Jahr verzeichnet sie zwar ein beeindruckendes Plus von einem Drittel gegenüber dem Vorjahr, doch besonders im IT-Bereich bleibt die Personalgewinnung schwierig.
Zum Artikel: …

Sample-Efficient Omniprediction for Proper Losses
Isaac Gibbs, Ryan J. Tibshirani
https://arxiv.org/abs/2510.12769 https://arxiv.org/pdf/2510.12769

Crypto casinos have become online gambling havens for teens and problem gamblers, propped up by operators who turn social media influencers into recruiters (New York Times)
https://www.nytimes.com/interactive/2025/1

Exact Matching and Top-k Perfect Matching Parameterized by Neighborhood Diversity or Bandwidth
Nicolas El Maalouly, Kostas Lakis
https://arxiv.org/abs/2510.12552 https://…

$\mathbf{T^3}$: Reducing Belief Deviation in Reinforcement Learning for Active Reasoning
Deyu Zou, Yongqiang Chen, Jianxiang Wang, Haochen Yang, Mufei Li, James Cheng, Pan Li, Yu Gong
https://arxiv.org/abs/2510.12264

"A new investigation of Elon #Musk’s X by Sky News found that every account set up by reporters, 'no matter their political orientation, was fed a glut of rightwing content', much of which was extreme. The experts it consulted believe this pattern could have resulted only from an algorithm engineered for this purpose, and that 'an algorithmic bias must be decided by senior people at …

Who is a Better Matchmaker? Human vs. Algorithmic Judge Assignment in a High-Stakes Startup Competition
Sarina Xi, Orelia Pi, Miaomiao Zhang, Becca Xiong, Jacqueline Ng Lane, Nihar B. Shah
https://arxiv.org/abs/2510.12692

Verbieten klingt erst einmal gut, löst aber nicht das Problem: 53 % der Deutschen befürworten ein Social-Media-Verbot für Kinder. Klingt vernünftig – bis man merkt: Die Risiken der digitalen Welt verschwinden nicht mit dem Ausloggen. Statt komplexe Probleme zu verbieten, sollten wir sie verstärkt an der Wurzel anpacken: Plattformregeln statt Pausenknopf. #Statista

Just keep in mind that the same party also doesn‘t see a problem when school kids die from gun shots. https://mastodon.social/@TwraSun/115547658428106400

In " Trump v Slaughter" the Supreme Court is likely to rule that
Trump has the power fire FTC head Rebecca Slaughter
(and, by implication, the heads of many other agencies thought to have a measure of independence,
such as the Securities and Exchange Commission, the National Labor Relations Board, the Federal Energy Regulatory Commission and the Federal Election Commission)
at his discretion.

The problem is that such a decision wouldn’t restore the constitu…

Bayerns Digitalminister fordert Aus für analoge Verwaltung bis 2030
Parallelstrukturen bremsen Digitalisierung der Verwaltung in Deutschland aus, so Bayerns Digitalminister Mehring. Er sieht noch ein anderes Problem.

Sparse Polyak: an adaptive step size rule for high-dimensional M-estimation
Tianqi Qiao, Marie Maros
https://arxiv.org/abs/2509.09802 https://arxiv.org/pdf…

A Dynamic Watermarking Technique for Matching Communication Addresses with Cars in a Visual Field
Woo-Hyun Ko, Jaewon Kim, Tzu-Hsiang Lin, Samin Moosavi, P. R. Kumar
https://arxiv.org/abs/2510.11353

Learning-To-Measure: In-context Active Feature Acquisition
Yuta Kobayashi, Zilin Jing, Jiayu Yao, Hongseok Namkoong, Shalmali Joshi
https://arxiv.org/abs/2510.12624 https://

An inverse problem for the Monge-Amp\`ere equation
Tony Liimatainen, Yi-Hsuan Lin
https://arxiv.org/abs/2510.11572 https://arxiv.org/pdf/2510.11572

Limit Laws for Poincar\'e Recurrence and the Shrinking Target Problem
Alejandro Rodriguez Sponheimer
https://arxiv.org/abs/2510.12596 https://arxiv.org…

An efficient iteration method to reconstruct the drift term from the final measurement
Dakang Cen, Wenlong Zhang, Zhidong Zhang
https://arxiv.org/abs/2510.10940 https://

@… I think it’s funny that it meets someone’s idea of “off the grid”. But appreciate we all live different lives.
There are a number of people who are very important to me, the “only” way we connect is by exchanging emails. Somehow that hasn’t been a problem.

Toward Minimum Graphic Parity Networks
Yixin Cao, Yiren Lu, Junhong Nie, Xiaoming Sun, Guojing Tian
https://arxiv.org/abs/2509.10070 https://arxiv.org/pdf/…

Singular Solutions of the Loewner-Nirenberg Problem in Conic Domains with Prescribed Singularity at Vertices
Stephen Zhou
https://arxiv.org/abs/2510.12010 https://

Locally Linear Convergence for Nonsmooth Convex Optimization via Coupled Smoothing and Momentum
Reza Rahimi Baghbadorani, Sergio Grammatico, Peyman Mohajerin Esfahani
https://arxiv.org/abs/2511.10239 https://arxiv.org/pdf/2511.10239 https://arxiv.org/html/2511.10239
arXiv:2511.10239v1 Announce Type: new
Abstract: We propose an adaptive accelerated smoothing technique for a nonsmooth convex optimization problem where the smoothing update rule is coupled with the momentum parameter. We also extend the setting to the case where the objective function is the sum of two nonsmooth functions. With regard to convergence rate, we provide the global (optimal) sublinear convergence guarantees of O(1/k), which is known to be provably optimal for the studied class of functions, along with a local linear rate if the nonsmooth term fulfills a so-call locally strong convexity condition. We validate the performance of our algorithm on several problem classes, including regression with the l1-norm (the Lasso problem), sparse semidefinite programming (the MaxCut problem), Nuclear norm minimization with application in model free fault diagnosis, and l_1-regularized model predictive control to showcase the benefits of the coupling. An interesting observation is that although our global convergence result guarantees O(1/k) convergence, we consistently observe a practical transient convergence rate of O(1/k^2), followed by asymptotic linear convergence as anticipated by the theoretical result. This two-phase behavior can also be explained in view of the proposed smoothing rule.
toXiv_bot_toot

The Online Submodular Cover Problem
Anupam Gupta, Roie Levin
https://arxiv.org/abs/2510.08883 https://arxiv.org/pdf/2510.08883

IGA Laplace Eigenfrequencies Distributions and Estimations: Impact of Reparametrization on Eigenfrequency Behavior
Lamsahel Noureddine, Abdeladim El Akri, Ahmed Ratnani
https://arxiv.org/abs/2510.12632

Asymptotics of the solution of the Cauchy problem for a singularly perturbed system of hyperbolic equations. Part 2. Initial conditions
Andrey Nesterov
https://arxiv.org/abs/2510.12550

Trump: Netflix-Stärke könnte Problem bei Warner-Deal sein
Donald Trump will persönlich an der Entscheidung der US-Regierung zur Übernahme von Warner Brothers durch Netflix beteiligt sein.
https://www.

Engineering Dominating Patterns: A Fine-grained Case Study
Jonathan Dransfeld, Marvin K\"unnemann, Mirza Redzic, Marcus Wunderlich
https://arxiv.org/abs/2510.12232 https://…

Multiple sign-changing solutions for semilinear subelliptic Dirichlet problem
Hua Chen, Hong-Ge Chen, Jin-Ning Li, Xin Liao
https://arxiv.org/abs/2510.10120 https://

A priori error estimates for stable generalized finite element discretization of parabolic interface optimal control problems
Xindan Zhang, Jianping Zhao, Yanren Hou
https://arxiv.org/abs/2510.12147

Hamilton-Jacobi Reachability for Viability Analysis of Constrained Waste-to-Energy Systems under Adversarial Uncertainty
Achraf Bouhmady, Othman Cherkaoui Dekkaki
https://arxiv.org/abs/2510.11396

Column Generation for Periodic Timetabling
Stephanie Riedm\"uller, Niels Lindner
https://arxiv.org/abs/2510.12466 https://arxiv.org/pdf/2510.12466

Digitale Aufrüstung: Die Bundeswehr sucht IT-Experten
Die Truppenstärke der Bundeswehr soll stark steigen – durch den neuen Wehrdienst sowie Berufs- und Zeitsoldaten mit speziellem Fachwissen, etwa in der IT.
https://…

Verification of Sequential Convex Programming for Parametric Non-convex Optimization
Rajiv Sambharya, Nikolai Matni, George Pappas
https://arxiv.org/abs/2511.10622 https://arxiv.org/pdf/2511.10622 https://arxiv.org/html/2511.10622
arXiv:2511.10622v1 Announce Type: new
Abstract: We introduce a verification framework to exactly verify the worst-case performance of sequential convex programming (SCP) algorithms for parametric non-convex optimization. The verification problem is formulated as an optimization problem that maximizes a performance metric (e.g., the suboptimality after a given number of iterations) over parameters constrained to be in a parameter set and iterate sequences consistent with the SCP update rules. Our framework is general, extending the notion of SCP to include both conventional variants such as trust-region, convex-concave, and prox-linear methods, and algorithms that combine convex subproblems with rounding steps, as in relaxing and rounding schemes. Unlike existing analyses that may only provide local guarantees under limited conditions, our framework delivers global worst-case guarantees--quantifying how well an SCP algorithm performs across all problem instances in the specified family. Applications in control, signal processing, and operations research demonstrate that our framework provides, for the first time, global worst-case guarantees for SCP algorithms in the parametric setting.
toXiv_bot_toot

Benders Decomposition for Passenger-Oriented Train Timetabling with Hybrid Periodicity
Zhiyuan Yao, Anita Sch\"obel, Lei Nie, Sven J\"ager
https://arxiv.org/abs/2511.09892 https://arxiv.org/pdf/2511.09892 https://arxiv.org/html/2511.09892
arXiv:2511.09892v1 Announce Type: new
Abstract: Periodic timetables are widely adopted in passenger railway operations due to their regular service patterns and well-coordinated train connections. However, fluctuations in passenger demand require varying train services across different periods, necessitating adjustments to the periodic timetable. This study addresses a hybrid periodic train timetabling problem, which enhances the flexibility and demand responsiveness of a given periodic timetable through schedule adjustments and aperiodic train insertions, taking into account the rolling stock circulation. Since timetable modifications may affect initial passenger routes, passenger routing is incorporated into the problem to guide planning decisions towards a passenger-oriented objective. Using a time-space network representation, the problem is formulated as a dynamic railway service network design model with resource constraints. To handle the complexity of real-world instances, we propose a decomposition-based algorithm integrating Benders decomposition and column generation, enhanced with multiple preprocessing and accelerating techniques. Numerical experiments demonstrate the effectiveness of the algorithm and highlight the advantage of hybrid periodic timetables in reducing passenger travel costs.
toXiv_bot_toot

Gaussian beam interactions and inverse source problems for nonlinear wave equations
Matti Lassas, Tony Liimatainen, Valter Pohjola, Teemu Tyni
https://arxiv.org/abs/2510.11494 h…

New Classes of Non-monotone Variational Inequality Problems Solvable via Proximal Gradient on Smooth Gap Functions
Lei Zhao, Daoli Zhu, Shuzhong Zhang
https://arxiv.org/abs/2510.12105