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In this paper, we analyze the predictability of the ocean currents using deep learning. More specifically, we apply the Long Short Term Memory (LSTM) deep learning network to a data set collected by the National Oceanic and Atmospheric…

Atmospheric and Oceanic Physics · Physics 2019-06-20 Cihan Bayindir

In this paper, we summarize recent progresses made in deep learning based acoustic models and the motivation and insights behind the surveyed techniques. We first discuss acoustic models that can effectively exploit variable-length…

Audio and Speech Processing · Electrical Eng. & Systems 2018-04-30 Dong Yu , Jinyu Li

This paper proposes a deep learning approach to a class of active sensing problems in wireless communications in which an agent sequentially interacts with an environment over a predetermined number of time frames to gather information in…

Information Theory · Computer Science 2022-02-10 Foad Sohrabi , Tao Jiang , Wei Cui , Wei Yu

Multi-context model learning is crucial for marine robotics where several factors can cause disturbances to the system's dynamics. This work addresses the problem of identifying multiple contexts of an AUV model. We build a simulation model…

Robotics · Computer Science 2018-09-18 Bilal Wehbe , Octavio Arriaga , Mario Michael Krell , Frank Kirchner

Since its inception, underwater digital acoustic communication has required custom hardware that neither has the economies of scale nor is pervasive. We present the first acoustic system that brings underwater messaging capabilities to…

Networking and Internet Architecture · Computer Science 2022-08-24 Tuochao Chen , Justin Chan , Shyamnath Gollakota

Marine ecosystems and their fish habitats are becoming increasingly important due to their integral role in providing a valuable food source and conservation outcomes. Due to their remote and difficult to access nature, marine environments…

Computer Vision and Pattern Recognition · Computer Science 2022-06-14 Alzayat Saleh , Marcus Sheaves , Dean Jerry , Mostafa Rahimi Azghadi

Underwater acoustic (UWA) communication plays a key role in the process of exploring and studying the ocean. In this paper, a modified non-stationary wideband channel model for UWA communication in shallow water scenarios is proposed. In…

Signal Processing · Electrical Eng. & Systems 2021-08-17 Xiuming Zhu , Cheng-Xiang Wang , Ruofei Ma

Underwater vehicles are utilized in various applications including underwater data-collection missions. The tethered connection constrains the mission both in distance traveled and number of vehicles that can run in the same area, while the…

Signal Processing · Electrical Eng. & Systems 2019-11-12 Mehdi Rahmati , Archana Arjula , Dario Pompili

The deep learning revolution is touching all scientific disciplines and corners of our lives as a means of harnessing the power of big data. Marine ecology is no exception. These new methods provide analysis of data from sensors, cameras,…

Underwater monitoring and surveillance systems are essential for underwater target detection, localization and classification. The aim of this work is to investigate the possibility of target detection by using data transmission between…

Signal Processing · Electrical Eng. & Systems 2024-09-18 Lu Shen , Yuriy Zakharov , Benjamin Henson , Nils Morozs , Benoît Parrein , Paul D. Mitchell

Depth information plays a crucial role in autonomous systems for environmental perception and robot state estimation. With the rapid development of deep neural network technology, depth estimation has been extensively studied and shown…

Robotics · Computer Science 2024-11-11 Quang Truong Nguyen , Thanh Nguyen Canh , Xiem HoangVan

The increased availability of data and computing resources has enabled researchers to successfully adopt machine learning (ML) techniques and make significant contributions in several engineering areas. ML and in particular deep learning…

Machine Learning · Computer Science 2025-02-10 Nunzio A. Letizia

Accurate predictions of ship trajectories in crowded environments are essential to ensure safety in inland waterways traffic. Recent advances in deep learning promise increased accuracy even for complex scenarios. While the challenge of…

Machine Learning · Computer Science 2026-03-06 Tom Legel , Dirk Söffker , Roland Schätzle , Kathrin Donandt

As the dominant information carrier in water, acoustic wave is widely used for underwater detection, communication and imaging. Even though underwater acoustic communication has been greatly improved in the past decades, it still suffers…

Applied Physics · Physics 2020-12-03 Zhaoyong Sun , Yu Shi , Xuecong Sun , Han Jia , Zhongkun Jin , Ke Deng , Jun Yang

Underwater acoustic target recognition has emerged as a prominent research area within the field of underwater acoustics. However, the current availability of authentic underwater acoustic signal recordings remains limited, which hinders…

Sound · Computer Science 2024-11-06 Yuan Xie , Jiawei Ren , Junfeng Li , Ji Xu

Far-field speech recognition in noisy and reverberant conditions remains a challenging problem despite recent deep learning breakthroughs. This problem is commonly addressed by acquiring a speech signal from multiple microphones and…

Audio and Speech Processing · Electrical Eng. & Systems 2018-10-17 Zhong Meng , Shinji Watanabe , John R. Hershey , Hakan Erdogan

In this work, we focus on the model-mismatch problem for model-based subspace channel tracking in the correlated underwater acoustic channel. A model based on the underwater acoustic channel's correlation can be used as the state-space…

Signal Processing · Electrical Eng. & Systems 2021-04-09 Qihang Huang , Wei Li , Weicheng Zhan , Yuhang Wang , Rongrong Guo

Regional rainfall-runoff modeling is an old but still mostly out-standing problem in Hydrological Sciences. The problem currently is that traditional hydrological models degrade significantly in performance when calibrated for multiple…

Machine Learning · Computer Science 2019-11-12 Frederik Kratzert , Daniel Klotz , Guy Shalev , Günter Klambauer , Sepp Hochreiter , Grey Nearing

Robust hydrological simulation is key for sustainable development, water management strategies, and climate change adaptation. In recent years, deep learning methods have been demonstrated to outperform mechanistic models at the task of…

Machine Learning · Computer Science 2026-01-13 James Tlhomole , Edoardo Borgomeo , Karthikeyan Matheswaran , Mariangel Garcia Andarcia

Channel estimation is very challenging when the receiver is equipped with a limited number of radio-frequency (RF) chains in beamspace millimeter-wave (mmWave) massive multiple-input and multiple-output systems. To solve this problem, we…

Information Theory · Computer Science 2019-01-15 Hengtao He , Chao-Kai Wen , Shi Jin , Geoffrey Ye Li