Tootfinder

Replaced article(s) found for stat.ML. https://arxiv.org/list/stat.ML/new
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- Randomization Can Reduce Both Bias and Variance: A Case Study in Random Forests
Brian Liu, Rahul Mazumder

Ahhhja. Rentnerin vergisst Herd abzuschalten und verlässt das Haus. War zum Glück Wasser drin, aber beim verdampfen wurde der Rauchmelder ausgelöst. Und jetzt beschwert sie sich, dass die Nachbarn die Feuerwehr angerufen haben und sie für den entstandenen Schaden zahlen soll.
Ich bin ja auch dafür im Zweifel erst mal nen Sanity-Check zu machen - wenn kein Rauch/Feuerschein zu sehen ist und das Ding nach ein paar Sekunden wieder Ruhe gibt oder man wen vor Ort antrifft muss sicher nicht…

Discrete-Time LQ Stochastic Two Person Nonzero Sum Difference Games With Random Coefficients:~Closed-Loop Nash Equilibrium
Qingxin Meng, Yiwei Wu
https://arxiv.org/abs/2507.16412 …

Discrete-Time LQ Stochastic Two Person Nonzero Sum Difference Games With Random Coefficients:~Closed-Loop Nash Equilibrium
This paper investigates closed-loop Nash equilibria for discrete-time linear-quadratic (LQ) stochastic nonzero-sum difference games with random coefficients. Unlike existing works, we consider randomness in both state dynamics and cost functionals, leading to a complex structure of fully coupled cross-coupled stochastic Riccati equations (CCREs). The key contributions lie in characterizing the equilibrium via state-feedback strategies derived by decoupling stochastic Hamiltonian systems governe…

Fractional Compound Poisson Random Fields on Plane
P. Vishwakarma, K. K. Kataria
https://arxiv.org/abs/2506.16260 https://arxiv.org/p…

Fractional Compound Poisson Random Fields on Plane
We study a compound Poisson random field on plane and examine its various fractional variants. We derive the distributions of these random fields and in some particular cases, obtain their associated system of governing differential equations. Additionally, various weak convergence results are derived. Also, we introduce and study some fractional variants of the Poisson random field (PRF) that includes the space fractional and the space-time fractional Poisson random fields. We discuss various …

When learning analytics dashboard is explainable: An exploratory study on the effect of GenAI-supported learning analytics dashboard
Angxuan Chen
https://arxiv.org/abs/2506.16312 …

When learning analytics dashboard is explainable: An exploratory study on the effect of GenAI-supported learning analytics dashboard
This study investigated the impact of a theory-driven, explainable Learning Analytics Dashboard (LAD) on university students' human-AI collaborative academic abstract writing task. Grounded in Self-Regulated Learning (SRL) theory and incorporating Explainable AI (XAI) principles, our LAD featured a three-layered design (Visual, Explainable, Interactive). In an experimental study, participants were randomly assigned to either an experimental group (using the full explainable LAD) or a control gr…

Random marked nested tessellations applied to the modelling of deformation twinning in polycrystalline materials
Oleksandr Kornij\v{c}uk, Lud\v{e}k Heller, Zbyn\v{e}k Pawlas, Viktor Bene\v{s}
https://arxiv.org/abs/2507.14405

Random marked nested tessellations applied to the modelling of deformation twinning in polycrystalline materials
Stochastic geometry provides a powerful framework for modelling complex random structures, with applications in physics, materials science, biology, and other fields. The three-dimensional microstructure of polycrystalline materials is usually modeled by a randomly marked tessellation, where the marks correspond to crystallographic orientations. The purpose of this study is to extend the modelling approach to a finer scale, focusing on the subcells that emerge when a material specimen is expose…

Der Soziologe und Jugendforscher Klaus Hurrelmann (81) will Ältere für ein Jahr zum Arbeitsdienst verpflichten
#Alter #Senioren #Arbeit

Zwangsdienst statt Rentnerdasein: Experte will Senioren zur Arbeit verpflichten
Jugendforscher Klaus Hurrelmann warnt vor einer Schieflage zwischen Alt und Jung. Er schlägt einen sozialen Pflichtdienst für Senioren vor. Die Lasten sollen gerechter verteilt werden.

Just for the record: In Berufen mit hoher Belastung lebt man drei Jahre kürzer, mit prekären Einkommen sinkt die Lebenserwartung deutlich. Konkret leben Ärmere fünf Jahre (!) kürzer. Das bedeutet, dass viele lange in die Rentenkasse einzahlen und unter Strich nichts davon haben. Nicht nur, weil es eine Rente ist, von der sie nicht leben können, sondern weil sie früher sterben - und damit für besserverdienende Menschen zahlen, die weniger Belastungen ausgesetzt waren.

The dependency digraph for irreducible finite-range random walk in free groups
Chevalier Guillaume (IMB)
https://arxiv.org/abs/2507.15902 https://

The dependency digraph for irreducible finite-range random walk in free groups
This article is one of a triptych composed with [Che25a] and [Che25b], that aims at proving an asymptotic expansion to any order of the passage probability of an irreducible equivariant finite range random walk on a tree. In this text we study the analytic and geometric properties of the objects introduced in [Che25b]. To do so we introduce the definition of a ''flooded cavern tree'' enabling a precise study of some dependency digraph associated with a given irreducible finite-range random walk…

Sharp Square Root Bounds for Edge Eigenvector Universality in Sparse Random Regular Graphs
Leonhard Nagel
https://arxiv.org/abs/2507.14259 https://

Sharp Square Root Bounds for Edge Eigenvector Universality in Sparse Random Regular Graphs
We study how eigenvectors of random regular graphs behave when projected onto fixed directions. For a random $d$-regular graph with $N$ vertices, where the degree $d$ grows slowly with $N$, we prove that these projections follow approximately normal distributions. Our main result establishes a Berry-Esseen bound showing convergence to the Gaussian with error $O(\sqrt{d} \cdot N^{-1/6+\varepsilon})$ for degrees $d \leq N^{1/4}$. This bound significantly improves upon previous results that had er…