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The assembly of virus capsids from free coat proteins proceeds by a complicated cascade of association and dissociation steps, the great majority of which cannot be directly experimentally observed. This has made capsid assembly a rich…

Quantitative Methods · Quantitative Biology 2015-07-09 Lu Xie , Gregory R. Smith , Russell Schwartz

Living systems such as neuronal networks and animal groups process information about their environment via the dynamics of interacting units. These can transition between distinct macroscopic behaviors. Near such a transition (or critical…

Data-driven hourly weather forecasting models often face the challenge of error accumulation in long-term predictions. The problem is exacerbated by non-physical temporal discontinuities present in widely-used training datasets such as…

Machine Learning · Computer Science 2025-10-01 Shuangshuang He , Yuanting Zhang , Hongli Liang , Qingye Meng , Xingyuan Yuan , Shuo Wang

Fast identification of new network attack patterns is crucial for improving network security. Nevertheless, identifying an ongoing attack in a heterogeneous network is a non-trivial task. Federated learning emerges as a solution to…

Cryptography and Security · Computer Science 2022-05-25 Helio N. Cunha Neto , Ivana Dusparic , Diogo M. F. Mattos , Natalia C. Fernandes

Collective behaviors displayed by groups of social animals are observed frequently in nature. Understanding and predicting the behavior of complex biological systems is dependent on developing effective descriptions and models. While…

Biological Physics · Physics 2020-07-01 Julia A. Giannini , James G. Puckett

Federated Learning (FL) is a decentralized approach for collaborative model training on edge devices. This distributed method of model training offers advantages in privacy, security, regulatory compliance, and cost-efficiency. Our emphasis…

Machine Learning · Computer Science 2024-10-24 Charuka Herath , Xiaolan Liu , Sangarapillai Lambotharan , Yogachandran Rahulamathavan

This paper presents a comparison of two reduced-order, sequential and variational data assimilation methods: the SEEK filter and the R-4D-Var. A hybridization of the two, combining the variational framework and the sequential evolution of…

Geophysics · Physics 2009-11-13 Céline Robert , Eric Blayo , Jacques Verron

Federated learning has emerged as a popular technique for distributing model training across the network edge. Its learning architecture is conventionally a star topology between the devices and a central server. In this paper, we propose…

Camera traps, unmanned observation devices, and deep learning-based image recognition systems have greatly reduced human effort in collecting and analyzing wildlife images. However, data collected via above apparatus exhibits 1) long-tailed…

Computer Vision and Pattern Recognition · Computer Science 2022-09-01 Jeongsoo Kim , Sangmin Woo , Byeongjun Park , Changick Kim

In this study, a probability density-based approach for constructing trajectories is proposed and validated through an typical use-case application: Estimated Time of Arrival (ETA) prediction given origin-destination pairs. The ETA…

Systems and Control · Electrical Eng. & Systems 2022-05-18 Deqing Zhai , Xiuju Fu , Xiao Feng Yin , Haiyan Xu , Wanbing Zhang , Ning Li

Federated learning has gained popularity as a solution to data availability and privacy challenges in machine learning. However, the aggregation process of local model updates to obtain a global model in federated learning is susceptible to…

Machine Learning · Computer Science 2023-03-22 Charuka Herath , Yogachandran Rahulamathavan , Xiaolan Liu

Today's ocean numerical prediction skills depend on the availability of in-situ and remote ocean observations at the time of the predictions only. Because observations are scarce and discontinuous in time and space, numerical models are…

Signal Processing · Electrical Eng. & Systems 2022-06-06 Ali Muhamed Ali , Hanqi Zhuang , Yu Huang , Ali K. Ibrahim , Ali Salem Altaher , Laurent Chérubin

After colliding with a surface, microswimmers reside there during the detention time. They accumulate and may form complex structures such as biofilms. We introduce a general framework to calculate the distribution of detention times using…

Soft Condensed Matter · Physics 2015-07-21 Konstantin Schaar , Andreas Zöttl , Holger Stark

Purse seiners play a crucial role in tuna fishing, as approximately 69% of the world's tropical tuna is caught using this gear. All tuna Regional Fisheries Management Organizations have established minimum standards to use electronic…

Computer Vision and Pattern Recognition · Computer Science 2025-11-20 Xabier Lekunberri , Ahmad Kamal , Izaro Goienetxea , Jon Ruiz , Iñaki Quincoces , Jaime Valls Miro , Ignacio Arganda-Carreras , Jose A. Fernandes-Salvador

Federated Learning (FL) is a promising distributed machine learning framework that allows collaborative learning of a global model across decentralized devices without uploading their local data. However, in real-world FL scenarios, the…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-03-11 Md Sirajul Islam , Sanjeev Panta , Fei Xu , Xu Yuan , Li Chen , Nian-Feng Tzeng

In open water, social fish gather to form schools, in which fish generally align with each other. In this work, we study how this social behavior evolves when perturbed by artificial obstacles. We measure the collective behavior of a group…

Biological Physics · Physics 2024-07-03 Bruno Ventéjou , Iris Magniez--Papillon , Eric Bertin , Philippe Peyla , Aurélie Dupont

The translational symmetry of solids gives rise to the existence of low-frequency phonons. In ordered systems, some phonons characterized by different wavevectors are degenerate, i.e. they share the same frequency $\omega$; in finite-size…

Statistical Mechanics · Physics 2018-08-08 Eran Bouchbinder , Edan Lerner

There is increasing evidence that fish gain energetic benefits when they swim in a school. The most recent indications of such benefits are a lower tail (or fin) beat at the back of a school and reduced oxygen consumption in schooling fish…

Quantitative Methods · Quantitative Biology 2013-07-30 C. K. Hemelrijk , D. A. P. Reid , H. Hildenbrandt , J. T. Padding

We explore a possible origin for the puzzling anti-correlation between the formation epoch of galactic dark-matter haloes and their environment density. This correlation has been revealed from cosmological N-body simulations and is in…

Astrophysics · Physics 2015-05-13 Oliver Hahn , Cristiano Porciani , Avishai Dekel , C. Marcella Carollo

Landfall of a tropical cyclone is the event when it moves over the land after crossing the coast of the ocean. It is important to know the characteristics of the landfall in terms of location and time, well advance in time to take…

Machine Learning · Computer Science 2021-03-31 Sandeep Kumar , Koushik Biswas , Ashish Kumar Pandey