Tootfinder

Global Dynamics of the Non-Radial Energy-Critical Inhomogeneous Biharmonic NLS
Carlos M. Guzm\'an, Sahbi Keraani, Chengbin Xu
https://arxiv.org/abs/2508.02796 https://

Global Dynamics of the Non-Radial Energy-Critical Inhomogeneous Biharmonic NLS
We investigate the focusing inhomogeneous nonlinear biharmonic Schrödinger equation \[ i\partial_t u + Δ^2 u - |x|^{-b}|u|^p u = 0 \quad \text{on } \mathbb{R} \times \mathbb{R}^N, \] in the energy-critical regime, $p = \frac{8 - 2b}{N - 4}$, and $5 \leq N < 12$. We focus on the challenging non-radial setting and establish global well-posedness and scattering under the subcritical assumption $ \sup_{t \in I} \|Δu(t)\|_{L^2} < \|ΔW\|_{L^2}, $ where $W$ …

Paired by the Teacher: Turning Unpaired Data into High-Fidelity Pairs for Low-Resource Text Generation
Yen-Ju Lu, Thomas Thebaud, Laureano Moro-Velazquez, Najim Dehak, Jesus Villalba
https://arxiv.org/abs/2509.25144

Paired by the Teacher: Turning Unpaired Data into High-Fidelity Pairs for Low-Resource Text Generation
We present Paired by the Teacher (PbT), a two-stage teacher-student pipeline that synthesizes accurate input-output pairs without human labels or parallel data. In many low-resource natural language generation (NLG) scenarios, practitioners may have only raw outputs, like highlights, recaps, or questions, or only raw inputs, such as articles, dialogues, or paragraphs, but seldom both. This mismatch forces small models to learn from very few examples or rely on costly, broad-scope synthetic exam…

Meanwhile, in a blue state, VT Gov. Phil Scott: “From what I’m seeing, I just think it’s unnecessary. It further divides and threatens people. We need stability right now in this country — we don’t need more unrest. **I don’t think our guards should be used against our own people. I don’t think the military should be used against our own people. In fact, it’s unconstitutional… [u]nless, of course, there’s an insurrection, much like we saw Jan. 6 a few years ago.**”

Laser-induced transient opacity in helium nanodroplets probed by single-shot coherent diffraction
Julian C. Sch\"afer-Zimmermann, Tom von Scheven, Katharina Kolatzki, Bj\"orn Kruse, Bruno Langbehn, Thomas M\"oller, Nils Monserud, Mario Sauppe, Bernd Sch\"utte, Bj\"orn Senfftleben, Rico Mayro P. Tanyag, Anatoli Ulmer, Thomas Fennel, Marc J. J. Vrakking, Arnaud Rouz\'ee, Daniela Rupp

Laser-induced transient opacity in helium nanodroplets probed by single-shot coherent diffraction
Single-shot coherent diffractive imaging (CDI) with intense short-wavelength light pulses enables the structural characterization of individual nanoparticles in free flight with high spatial and temporal resolution. Conventional CDI assumes that the target object exhibits a linear scattering response and static electronic properties. Here, we extend this approach to investigate transient laser-driven modifications of the electronic structure in individual nanoparticles, imprinted in their time-…

Holy Crap. Today's ride home was insane. My chain came off, had to pull over to fix it, simple, no issue. But then as I had to wait at a stoplight this pickup truck took off when the light turned green and these two bins slide right out the back onto the road! As the bins hit a box of nails explodes and these little nails with orange discs fly everywhere. (Stock photo included because it was such chaos I did not get a photo.)
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Medienberichte: Trump plant Treffen mit Putin und Selenskyj
US-Präsident Donald Trump will sich Medienberichten zufolge möglicherweise bereits kommende Woche persönlich mit Russlands Präsident Wladimir Putin treffen. Die New York Times und CNN berichteten, dass ein Treffen mit Putin und dem ukrainischen Präsidenten Wolodymyr Selenskyj angedacht sei.
Trump habe sein Vorhaben in einem Telefonat mit europäischen Staats- und Reg…
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Ukraine-Liveblog: ++ Selenskyj: Druck auf Russland zeigt Wirkung ++
Der ukrainische Präsident Selenskyj sieht nach dem Besuch des US-Sondergesandten Witkoff in Moskau eine größere Bereitschaft Russlands zu einer Feuerpause. Medienberichten zufolge will sich US-Präsident Trump mit Kreml-Chef Putin treffen. Die Entwicklungen vom Mittwoch zum Nachlesen.

Prompt Pirates Need a Map: Stealing Seeds helps Stealing Prompts
Felix M\"achtle, Ashwath Shetty, Jonas Sander, Nils Loose, S\"oren Pirk, Thomas Eisenbarth
https://arxiv.org/abs/2509.09488

Prompt Pirates Need a Map: Stealing Seeds helps Stealing Prompts
Diffusion models have significantly advanced text-to-image generation, enabling the creation of highly realistic images conditioned on textual prompts and seeds. Given the considerable intellectual and economic value embedded in such prompts, prompt theft poses a critical security and privacy concern. In this paper, we investigate prompt-stealing attacks targeting diffusion models. We reveal that numerical optimization-based prompt recovery methods are fundamentally limited as they do not accou…

AutoStub: Genetic Programming-Based Stub Creation for Symbolic Execution
Felix M\"achtle, Nils Loose, Jan-Niclas Serr, Jonas Sander, Thomas Eisenbarth
https://arxiv.org/abs/2509.08524

AutoStub: Genetic Programming-Based Stub Creation for Symbolic Execution
Symbolic execution is a powerful technique for software testing, but suffers from limitations when encountering external functions, such as native methods or third-party libraries. Existing solutions often require additional context, expensive SMT solvers, or manual intervention to approximate these functions through symbolic stubs. In this work, we propose a novel approach to automatically generate symbolic stubs for external functions during symbolic execution that leverages Genetic Programmi…

scellop: A Scalable Redesign of Cell Population Plots for Single-Cell Data
Thomas C. Smits, Nikolay Akhmetov, Tiffany S. Liaw, Mark S. Keller, Eric M\"orth, Nils Gehlenborg
https://arxiv.org/abs/2510.09554

scellop: A Scalable Redesign of Cell Population Plots for Single-Cell Data
Summary: Cell population plots are visualizations showing cell population distributions in biological samples with single-cell data, traditionally shown with stacked bar charts. Here, we address issues with this approach, particularly its limited scalability with increasing number of cell types and samples, and present scellop, a novel interactive cell population viewer combining visual encodings optimized for common user tasks in studying populations of cells across samples or conditions. Av…