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We present cogsworth, an open-source Python tool for producing self-consistent population synthesis and galactic dynamics simulations. With cogsworth one can (1) sample a population of binaries and star formation history, (2) perform rapid…

星系天体物理 · 物理学 2024-11-07 Tom Wagg , Katelyn Breivik , Mathieu Renzo , Adrian M. Price-Whelan

Deep predictive models rely on human supervision in the form of labeled training data. Obtaining large amounts of annotated training data can be expensive and time consuming, and this becomes a critical bottleneck while building such models…

机器学习 · 统计学 2020-10-01 Bindya Venkatesh , Jayaraman J. Thiagarajan

Grids of stellar models are useful tools to derive the properties of stellar clusters, in particular young clusters hosting massive stars, and to provide information on the star formation process in various mass ranges. Because of their…

太阳与恒星天体物理 · 物理学 2019-05-01 L. Haemmerlé , P. Eggenberger , S. Ekström , C. Georgy , G. Meynet , A. Postel , M. Audard , M. Sørensen , T. Fragos

We propose a sparse grids based adaptive noise reduction strategy for electrostatic particle-in-cell (PIC) simulations. Our approach is based on the key idea of relying on sparse grids instead of a regular grid in order to increase the…

This paper proposes SplitSGD, a new dynamic learning rate schedule for stochastic optimization. This method decreases the learning rate for better adaptation to the local geometry of the objective function whenever a stationary phase is…

机器学习 · 统计学 2024-02-20 Matteo Sordello , Niccolò Dalmasso , Hangfeng He , Weijie Su

Precise pose estimation of optical microrobots is essential for enabling high-precision object tracking and autonomous biological studies. However, current methods rely heavily on large, high-quality microscope image datasets, which are…

计算机视觉与模式识别 · 计算机科学 2025-11-21 Zongcai Tan , Lan Wei , Dandan Zhang

Spiking neural networks have been referred to as the third generation of artificial neural networks where the information is coded as time of the spikes. There are a number of different spiking neuron models available and they are…

神经与进化计算 · 计算机科学 2011-09-14 Evangelos Stromatias

Gathering labeled data to train well-performing machine learning models is one of the critical challenges in many applications. Active learning aims at reducing the labeling costs by an efficient and effective allocation of costly labeling…

机器学习 · 计算机科学 2020-06-03 Daniel Kottke , Marek Herde , Christoph Sandrock , Denis Huseljic , Georg Krempl , Bernhard Sick

Reconfigurable intelligent surface (RIS) is a two-dimensional periodic structure integrated with a large number of reflective elements, which can manipulate electromagnetic waves in a digital way, offering great potentials for wireless…

机器学习 · 计算机科学 2025-01-22 Zhen Zhang , Jun Hui Qiu , Jun Wei Zhang , Hui Dong Li , Dong Tang , Qiang Cheng , Wei Lin

Active learning is a learning strategy whereby the machine learning algorithm actively identifies and labels data points to optimize its learning. This strategy is particularly effective in domains where an abundance of unlabeled data…

机器学习 · 计算机科学 2024-03-05 Zan-Kai Chong , Hiroyuki Ohsaki , Bryan Ng

Recently, simultaneously transmitting and reflecting reconfigurable intelligent surfaces (STAR-RISs) have received significant research interest. The employment of large STAR-RIS and high-frequency signaling inevitably make the near-field…

信息论 · 计算机科学 2023-06-27 Haochen Li , Yuanwei Liu , Xidong Mu , Yue Chen , Zhiwen Pan , Yonina C. Eldar

It has been reported that the communication cost for synchronizing gradients can be a bottleneck, which limits the scalability of distributed deep learning. Using low-precision gradients is a promising technique for reducing the bandwidth…

分布式、并行与集群计算 · 计算机科学 2021-05-18 Ruobing Han , James Demmel , Yang You

Accurate, global Potential Energy Surfaces (PES) expressed in sum-of-products (SOP) form are a prerequisite for efficient high-dimensional quantum dynamics simulations using the MCTDH method. This work introduces a methodology for…

化学物理 · 物理学 2026-03-31 Antoine Aerts

Binary populations in young star clusters show multiplicity fractions both lower and up to twice as high as those observed in the Galactic field. We follow the evolution of a population of binary stars in dense and loose star clusters…

星系天体物理 · 物理学 2015-06-05 Michael Marks , Pavel Kroupa

We propose a novel approach using supervised learning to obtain near-optimal primal solutions for two-stage stochastic integer programming (2SIP) problems with constraints in the first and second stages. The goal of the algorithm is to…

最优化与控制 · 数学 2019-12-18 Yoshua Bengio , Emma Frejinger , Andrea Lodi , Rahul Patel , Sriram Sankaranarayanan

Extracting associations that recur across multiple studies while controlling the false discovery rate is a fundamental challenge. Here, we consider an extension of Efron's single-study two-groups model to allow joint analysis of multiple…

统计方法学 · 统计学 2019-01-14 David Amar , Ron Shamir , Daniel Yekutieli

Microarray techniques are widely used in Gene expression analysis. These techniques are based on discovering submatrices of genes that share similar expression patterns across a set of experimental conditions with coherence constraint.…

定量方法 · 定量生物学 2020-01-27 Bilal Taher , Muhammad. H Fares , Saeed Jalili

Accurate estimation of stellar parameters -- stellar age, lifetime, and evolutionary stage -- remains a fundamental challenge in astrophysics. We introduce a hybrid deep learning architecture combining multimodal spectroscopic and…

天体物理仪器与方法 · 物理学 2025-11-25 Jing Rou Puah , Sasa Arsovski

Artificial intelligence is transforming scientific computing with deep neural network surrogates that approximate solutions to partial differential equations (PDEs). Traditional off-line training methods face issues with storage and I/O…

机器学习 · 计算机科学 2024-10-10 Sofya Dymchenko , Abhishek Purandare , Bruno Raffin

We compare the evolution of binary systems evolved in the MESA stellar evolution code to those in the COSMIC population synthesis code. Our aim is to convey the robustness of the equations that model binary evolution in the COSMIC code,…