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Internal solitary waves (ISWs) are gravity waves that are often observed in the interior ocean rather than the surface. They hold significant importance due to their capacity to carry substantial energy, thus influence pollutant transport,…

Machine Learning · Computer Science 2024-06-21 Zhang Wan , Shuo Wang , Xudong Zhang

Whale Optimization Algorithm (WOA) is a nature-inspired meta-heuristic optimization algorithm, which was proposed by Mirjalili and Lewis in 2016. This algorithm has shown its ability to solve many problems. Comprehensive surveys have been…

Neural and Evolutionary Computing · Computer Science 2019-04-25 Hardi M. Mohammed , Shahla U. Umar , Tarik A. Rashid

Accurate prediction of global sea surface temperature at sub-seasonal to seasonal (S2S) timescale is critical for drought and flood forecasting, as well as for improving disaster preparedness in human society. Government departments or…

Atmospheric and Oceanic Physics · Physics 2024-09-10 Longhao Wang , Xuanze Zhang , L. Ruby Leung , Francis H. S. Chiew , Amir AghaKouchak , Kairan Ying , Yongqiang Zhang

This paper introduces SA-OOSC, a multimodal large language models (MLLM)-distilled semantic communication framework that achieves efficient semantic coding with scenario-aware importance allocations. This approach addresses a critical…

Signal Processing · Electrical Eng. & Systems 2025-09-10 Feifan Zhang , Yuyang Du , Yifan Xiang , Xiaoyan Liu , Soung Chang Liew

Critical evaluation and understanding of ship responses in the ocean is important for not only the design and engineering of future platforms but also the operation and safety of those that are currently deployed. Simulations or experiments…

Machine Learning · Computer Science 2023-01-25 Kevin M. Silva , Kevin J. Maki

Multi-channel speech enhancement utilizes spatial information from multiple microphones to extract the target speech. However, most existing methods do not explicitly model spatial cues, instead relying on implicit learning from…

Sound · Computer Science 2023-09-20 Jiahui Pan , Shulin He , Hui Zhang , Xueliang Zhang

Parameter-efficient continual learning has emerged as a promising approach for large language models (LLMs) to mitigate catastrophic forgetting while enabling adaptation to new tasks. Current Low-Rank Adaptation (LoRA) continual learning…

Machine Learning · Computer Science 2025-12-30 Fuli Qiao , Mehrdad Mahdavi

Massive black holes (MBHs) are crucial in shaping their host galaxies. How the MBH co-evolves with its host galaxy is a pressing problem in astrophysics and cosmology. The valuable information carried by the binary MBH is encoded in the…

High Energy Astrophysical Phenomena · Physics 2023-10-04 Yi Gong , Zhoujian Cao , Junjie Zhao , Lijing Shao

Deep learning models in satellite onboard enable real-time interpretation of remote sensing images, reducing the need for data transmission to the ground and conserving communication resources. As satellite numbers and observation…

Computer Vision and Pattern Recognition · Computer Science 2024-06-05 Xinyang Pu , Feng Xu

This study presents OceanCastNet (OCN), a machine learning approach for wave forecasting that incorporates wind and wave fields to predict significant wave height, mean wave period, and mean wave direction.We evaluate OCN's performance…

Atmospheric and Oceanic Physics · Physics 2025-11-04 Ziliang Zhang , Huaming Yu , Danqin Ren , Chenyu Zhang , Minghua Sun , Xin Qi

The rapid advancement of artificial intelligence technologies, particularly in recent years, has led to the emergence of several large parameter artificial intelligence weather forecast models. These models represent a significant…

Machine Learning · Computer Science 2024-04-22 Fenghua Ling , Lin Ouyang , Boufeniza Redouane Larbi , Jing-Jia Luo , Tao Han , Xiaohui Zhong , Lei Bai

The Earth system is accumulating energy due to human-induced activities. More than 90 percent of this energy has been stored in the ocean as heat since 1970, with about 64 percent of that in the upper 700 m. Differences in upper ocean heat…

In this paper, we propose SEA, a novel approach for active robot exploration through semantic map prediction and a reinforcement learning-based hierarchical exploration policy. Unlike existing learning-based methods that rely on one-step…

Robotics · Computer Science 2025-12-12 Hongyu Ding , Xinyue Liang , Yudong Fang , You Wu , Jieqi Shi , Jing Huo , Wenbin Li , Jing Wu , Yu-Kun Lai , Yang Gao

Efficient time integration schemes are necessary to capture the complex processes involved in atmospheric flows over long periods of time. In this work, we propose a high-order, implicit-explicit numerical scheme that combines Multi-Level…

Numerical Analysis · Mathematics 2018-10-22 Francois Hamon , Martin Schreiber , Michael Minion

We introduce Options LLM (OLLM), a simple, general method that replaces the single next-token prediction of standard LLMs with a \textit{set of learned options} for the next token, indexed by a discrete latent variable. Instead of relying…

Artificial Intelligence · Computer Science 2026-04-22 Shashank Sharma , Janina Hoffmann , Vinay Namboodiri

Localization is an important required task for enabling vehicle autonomy for underwater vehicles. Localization entails the determination of position of the center of mass and orientation of a vehicle from the available measurements. In this…

Optimization and Control · Mathematics 2019-07-03 Sai Krishna Kanth Hari , Kaarthik Sundar , Jose Braga , Joao Teixeira , Joao Sousa , Swaroop Darbha

The problem of underwater acoustic (UWA) channel estimation is the non-uniform sparse representation that may increase the algorithm complexity and the required time. A mathematical framework utilizing l21 constraint with two-dimensional…

Optimization and Control · Mathematics 2021-08-31 Amer Aljanabi , Mohanad Abd Shehab , Osama Alluhaibi , Qasim Zeeshan Ahmed , Pavlos Lazaridis

Processes in ocean physics, air-sea interaction and ocean biogeochemistry span enormous ranges in spatial and temporal scales, that is, from molecular to planetary and from seconds to millennia. Identifying and implementing sustainable…

Methodology · Statistics 2013-12-23 Christopher K. Wikle , Ralph F. Milliff , Radu Herbei , William B. Leeds

Accurate ocean forecasting systems are essential for understanding marine dynamics, which play a crucial role in sectors such as shipping, aquaculture, environmental monitoring, and coastal risk management. Traditional numerical solvers,…

Atmospheric and Oceanic Physics · Physics 2025-07-01 Daniel Holmberg , Emanuela Clementi , Italo Epicoco , Teemu Roos

To control a dynamical system it is essential to obtain an accurate estimate of the current system state based on uncertain sensor measurements and existing system knowledge. An optimization-based moving horizon estimation (MHE) approach…

Systems and Control · Electrical Eng. & Systems 2022-05-03 Simon Muntwiler , Kim P. Wabersich , Melanie N. Zeilinger
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