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With the proliferation of distributed generation into distribution networks, the need to consider fault currents in the dispatch problem becomes increasingly relevant. This paper introduces a method for adding fault current constraints into…

系统与控制 · 电气工程与系统科学 2023-01-31 Jose E. Tabarez , Arthur K. Barnes , Adam Mate , Russell W. Bent

We derive a minimalist but powerful deterministic denoising-diffusion model. While denoising diffusion has shown great success in many domains, its underlying theory remains largely inaccessible to non-expert users. Indeed, an understanding…

图形学 · 计算机科学 2023-05-08 Eric Heitz , Laurent Belcour , Thomas Chambon

Sea ice is not continuous and homogeneous on large scales. Its morphology is inherently discrete and made of individual floes. In recent years, sea ice models have incorporated this horizontal heterogeneity. The modelling framework…

地球物理 · 物理学 2022-05-13 Fabien Montiel , Nicolas Mokus

Particle filters are a popular and flexible class of numerical algorithms to solve a large class of nonlinear filtering problems. However, standard particle filters with importance weights have been shown to require a sample size that…

最优化与控制 · 数学 2017-09-20 Simone Carlo Surace , Anna Kutschireiter , Jean-Pascal Pfister

In this paper we establish lower bounds on information divergence of a distribution on the integers from a Poisson distribution. These lower bounds are tight and in the cases where a rate of convergence in the Law of Thin Numbers can be…

概率论 · 数学 2016-01-19 Peter Harremoës , Oliver Johnson , Ioannis Kontoyiannis

Power laws pervade statistical physics and complex systems, but, traditionally, researchers in these fields have paid little attention to properly fit these distributions. Who has not seen (or even shown) a log-log plot of a completely…

应用统计 · 统计学 2012-09-07 Alvaro Corral , Anna Deluca , Ramon Ferrer-i-Cancho

Deep neural networks exhibit empirical neural scaling laws, with error decreasing as a power law with increasing model or data size, across a wide variety of architectures, tasks, and datasets. This universality suggests that scaling laws…

机器学习 · 计算机科学 2024-12-12 Ari Brill

Distributed matrix computations -- matrix-matrix or matrix-vector multiplications -- are well-recognized to suffer from the problem of stragglers (slow or failed worker nodes). Much of prior work in this area is (i) either sub-optimal in…

信息论 · 计算机科学 2020-06-03 Anindya B. Das , Aditya Ramamoorthy , Namrata Vaswani

Understanding the properties of response time distributions is a long-standing problem in cognitive science. We provide a tutorial overview of several contemporary models that assume power law scaling is a plausible description of the…

神经元与认知 · 定量生物学 2015-10-15 Z. Liu , O. Pavlov Garcia , J. G. Holden , R. A. Serota

We address the inverse problem of recovering a degeneracy point within the diffusion coefficient of a one-dimensional complex parabolic equation by observing the normal derivative at one point of the boundary. The strongly degenerate case…

偏微分方程分析 · 数学 2026-05-13 Piermarco Cannarsa , Veronica Danesi , Anna Doubova

Natural language data follows a power-law distribution, with most knowledge and skills appearing at very low frequency. While a common intuition suggests that reweighting or curating data towards a uniform distribution may help models…

人工智能 · 计算机科学 2026-04-28 Zixuan Wang , Xingyu Dang , Jason D. Lee , Kaifeng Lyu

Epidemic outbreaks of new pathogens, or known pathogens in new populations, cause a great deal of fear because they are hard to predict. For theoretical models of disease spreading, on the other hand, quantities characterizing the outbreak…

种群与进化 · 定量生物学 2015-05-20 Petter Holme , Taro Takaguchi

Power laws arise in a variety of phenomena ranging from matter undergoing phase transition to the distribution of word frequencies in the English language. Usually, their presence is only apparent when data is abundant, and accurately…

神经元与认知 · 定量生物学 2022-04-20 Iván A. Davidovich , Yasser Roudi

The declustering problem is to allocate given data on parallel working storage devices in such a manner that typical requests find their data evenly distributed on the devices. Using deep results from discrepancy theory, we improve previous…

离散数学 · 计算机科学 2007-05-23 Benjamin Doerr , Nils Hebbinghaus , Sören Werth

Measuring the complexity of tree structures can be beneficial in areas that use tree data structures for storage, communication, and processing purposes. This complexity can then be used to compress tree data structures to their…

信息论 · 计算机科学 2023-09-19 Amirmohammad Farzaneh , Mihai-Alin Badiu , Justin P. Coon

We consider the problem of learning two families of time-evolving random measures from indirect observations. In the first model, the signal is a Fleming--Viot diffusion, which is reversible with respect to the law of a Dirichlet process,…

统计理论 · 数学 2014-11-19 Omiros Papaspiliopoulos , Matteo Ruggiero , Dario Spanò

In order to survive, reproduce and (in multicellular organisms) differentiate, cells must control the concentrations of the myriad different proteins that are encoded in the genome. The precision of this control is limited by the inevitable…

分子网络 · 定量生物学 2013-08-01 Gasper Tkacik , Aleksandra M. Walczak , William Bialek

Deconvolution is a statistical inverse problem to estimate the distribution of a random variable based on its noisy observations. Despite the extensive studies on the topic, deconvolution with unknown noise distribution remains as a…

统计理论 · 数学 2020-04-06 Devavrat Shah , Dogyoon Song

We investigate several geometric models of network which simultaneously have some nice global properties, that the small diameter property, the small-community phenomenon, which is defined to capture the common experience that (almost)…

概率论 · 数学 2011-07-29 Angsheng Li , Pan Peng

Popularized by their strong image generation performance, diffusion and related methods for generative modeling have found widespread success in visual media applications. In particular, diffusion methods have enabled new approaches to data…

图像与视频处理 · 电气工程与系统科学 2026-01-28 Yibo Yang , Stephan Mandt