Tootfinder

Sublinear-Time Algorithms for Diagonally Dominant Systems and Applications to the Friedkin-Johnsen Model
Weiming Feng, Zelin Li, Pan Peng
https://arxiv.org/abs/2509.13112 https:…

Sublinear-Time Algorithms for Diagonally Dominant Systems and Applications to the Friedkin-Johnsen Model
We study sublinear-time algorithms for solving linear systems $Sz = b$, where $S$ is a diagonally dominant matrix, i.e., $|S_{ii}| \geq δ+ \sum_{j \ne i} |S_{ij}|$ for all $i \in [n]$, for some $δ\geq 0$. We present randomized algorithms that, for any $u \in [n]$, return an estimate $z_u$ of $z^*_u$ with additive error $\varepsilon$ or $\varepsilon \lVert z^*\rVert_\infty$, where $z^*$ is some solution to $Sz^* = b$, and the algorithm only needs to read a small portion of …

Proprioceptive Misestimation of Hand Speed
Caitlin Callaghan, David J Reinkensmeyer
https://arxiv.org/abs/2510.11664 https://arxiv.org/pdf/2510.11664

Proprioceptive Misestimation of Hand Speed
The accuracy with which the human proprioceptive system estimates hand speed is not well understood. To investigate this, we designed an experiment using hobby-grade mechatronics parts and integrated it as a laboratory exercise in a large remote laboratory course. In a simple joint position reproduction task, participants (N = 191) grasped a servomotor-driven shaft with one hand as it followed a randomized trajectory composed of sinusoidal submovements. They simultaneously attempted to reproduc…

Ok, yeah, I'm not done processing my anger over liberals doing shit like this. So this historian sees a rise in right wing violence, sees the US government carrying out ethnic cleansing, sees a rise in white supremacist terrorism, and then says, "oh yeah... this reminds me of a time right around the 1920s. Hum... yeah, ANARCHISTS fighting the government! Yeah, that's the same thing."
FFS, IT'S THE RED SUMMER! If you want a parallel between today and some horrible time in US history, TALK ABOUT THE RED SUMMER. The point of the language of dehumanization that the right uses, the point of all the anti-black and anti-emigrant rhetoric, is that it leads to genocide. Trump already carried out an act of genocide (#USPol

Procrustes Problems on Random Matrices
Hajg Jasa, Ronny Bergmann, Christian K\"ummerle, Avanti Athreya, Zachary Lubberts
https://arxiv.org/abs/2510.05182 https://

Procrustes Problems on Random Matrices
Meaningful comparison between sets of observations often necessitates alignment or registration between them, and the resulting optimization problems range in complexity from those admitting simple closed-form solutions to those requiring advanced and novel techniques. We compare different Procrustes problems in which we align two sets of points after various perturbations by minimizing the norm of the difference between one matrix and an orthogonal transformation of the other. The minimization…

A Universal Moments-Only Bound for Cumulants
Jiechen Zhang
https://arxiv.org/abs/2510.05739 https://arxiv.org/pdf/2510.05739…

A Universal Moments-Only Bound for Cumulants
We establish a simple, universal inequality that bounds the $n$-th cumulant of a real-valued random variable using only its $n$-th (absolute or central) moment. Specifically, for any integer $n \ge 1$, the $n$-th cumulant $κ_n(X)$ satisfies \[ \lvert κ_n(X) \rvert \;\le\; C_n\, \mathbb{E}\lvert X-\mathbb{E}X\rvert^{\,n}, \] with an alternative bound in terms of $\mathbb{E}\lvert X\rvert^{\,n}$ in the uncentered form. The coefficient $C_n$ is derived from the combinatorial structure of the mom…

Crosslisted article(s) found for math.OC. https://arxiv.org/list/math.OC/new
[1/1]:
- Procrustes Problems on Random Matrices
Hajg Jasa, Ronny Bergmann, Christian K\"ummerle, Avanti Athreya, Zachary Lubberts

Dark matter direct search result from InDEx run2 at JUSL
Susmita Das, Mala Das, Vimal Kumar, Suraj Ali, Nilanjan Biswas, Shantonu Sahoo, Niraj Chaddha
https://arxiv.org/abs/2510.06921

Dark matter direct search result from InDEx run2 at JUSL
The Indian Dark matter search Experiment (InDEx) has been initiated at Jaduguda Underground Science Laboratory (JUSL) to explore the low mass region of dark matter. The detectors used by InDEx are superheated droplet detectors with active liquid C2H2F4. The run1 of InDEx was with 2.47 kg-days of exposure at a threshold of 5.87 keV. In the present work, the run2 of InDEx, the detectors were set at 1.95 keV thresholds with an active liquid mass of 70.4 g. For a runtime of 102.48 days, the experim…

Engineering Automotive Digital Twins on Standardized Architectures: A Case Study
Stefan Ramdhan, Winnie Trandinh, Istvan David, Vera Pantelic, Mark Lawford
https://arxiv.org/abs/2508.18662

Engineering Automotive Digital Twins on Standardized Architectures: A Case Study
Digital twin (DT) technology has become of interest in the automotive industry. There is a growing need for smarter services that utilize the unique capabilities of DTs, ranging from computer-aided remote control to cloud-based fleet coordination. Developing such services starts with the software architecture. However, the scarcity of DT architectural guidelines poses a challenge for engineering automotive DTs. Currently, the only DT architectural standard is the one defined in ISO 23247. Thoug…

Crosslisted article(s) found for stat.CO. https://arxiv.org/list/stat.CO/new
[1/1]:
- Procrustes Problems on Random Matrices
Hajg Jasa, Ronny Bergmann, Christian K\"ummerle, Avanti Athreya, Zachary Lubberts