精确的时间序列预测浮动平台运动通过加强融合CNN-BiLSTM注意力模型
Huiyuan Zheng1, Shicheng Wang1, Shihua Li1
1National Ocean Technology Center, Tianjin, China.
PloS one
|February 2, 2026
概括
这项研究引入了一种新的混合神经网络,用于预测浮动平台运动,提高海上工程的安全性. 该模型为复杂的海洋环境提供了可靠和可解释的解决方案.
科学领域:
- 海洋工程 海洋工程
- 海洋机器人 海洋机器人
- 计算流体动力学的流体动力学.
背景情况:
- 由于非线性和非静止的海洋环境,浮动平台面临运营挑战.
- 传统的预测模型与现实世界海洋条件的复杂性作斗争.
- 准确的运动预测对于海上工程和船舶设备测试的安全至关重要.
研究的目的:
- 开发一个先进的预测模型,用于浮动平台运动.
- 在非线性和非静止条件下解决传统方法的局限性.
- 整合数据驱动和基于物理的方法,以提高可靠性和可解释性.
主要方法:
- 利用完整的集体实证模式分解与自适应噪声 (CEEMDAN) 进行信号分解.
- 采用混合神经网络架构:卷积神经网络 (CNN),双向长期短期记忆 (BiLSTM) 和注意力机制.
- 集成的信号处理与时间特征工程 (滑动窗口优化) 和水力动力学模拟.
主要成果:
- 该CNN-BiLSTM-Attention模型展示了浮动平台运动的高预测准确性.
- 通过数据分析阐明了模型的物理解释性.
- 在数据驱动和基于物理的模型之间建立了一个闭环验证框架.
- 该模型显示了在不同的工作条件中广泛的适用性和可转移性.
结论:
- 拟议的CNN-BiLSTM-Attention模型为浮动平台运动预测提供了一个可靠,可解释和可转移的解决方案.
- 综合数据物理验证方法为海洋工程提供了一个新的研究方向.
- 这种方法克服了单一分析方法的局限性,提高了运营安全.
更多相关视频
06:31Estimating Vestibular Perceptual Thresholds Using a Six-Degree-Of-Freedom Motion Platform
Published on: August 4, 2022
3.7K
06:46Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity
Published on: March 18, 2019
7.5K
相关概念视频
00:54Time-Series Graph
5.2K
A time-series graph is a line graph with repeated measurements taken at successive intervals of time. It is also called a time series chart. To construct a time-series graph, one must look at both pieces of a paired data set. The horizontal axis is used to plot the time increments, and the vertical axis is used to plot the values of the variable that one is measuring. By using the axes in this way, each point on the graph will correspond to time and a measured quantity. The points on the graph...
5.2K
01:20Discrete-Time Fourier Series
684
The Discrete-Time Fourier Series (DTFS) is a fundamental concept in signal processing, serving as the discrete-time counterpart to the continuous-time Fourier series. It allows for the representation and analysis of discrete-time periodic signals in terms of their frequency components. Unlike its continuous counterpart, which utilizes integrals, the calculation of DTFS expansion coefficients involves summations due to the discrete nature of the signal.
For a discrete-time periodic signal x[n]...
For a discrete-time periodic signal x[n]...
684
02:45Nuclear Fusion
33.9K
The process of converting very light nuclei into heavier nuclei is also accompanied by the conversion of mass into large amounts of energy, a process called fusion. The principal source of energy in the sun is a net fusion reaction in which four hydrogen nuclei fuse and ultimately produce one helium nucleus and two positrons.
A helium nucleus has a mass that is 0.7% less than that of four hydrogen nuclei; this lost mass is converted into energy during the fusion. This reaction produces about...
A helium nucleus has a mass that is 0.7% less than that of four hydrogen nuclei; this lost mass is converted into energy during the fusion. This reaction produces about...
33.9K
01:23Reinforcement
919
Positive and negative reinforcement are key concepts in operant conditioning, a learning process where the consequences of a behavior affect the likelihood of that behavior being repeated.
Positive reinforcement occurs when a behavior is followed by the presentation of a rewarding stimulus, increasing the frequency of that behavior. For example:
Positive reinforcement occurs when a behavior is followed by the presentation of a rewarding stimulus, increasing the frequency of that behavior. For example:
919
01:27Corrosion of Reinforcement
579
The corrosion of steel reinforcement within concrete is a process influenced by the material's inherent properties and external factors. The high pH level of around 13, provided by calcium hydroxide present in concrete, initially protects the steel reinforcement by promoting the formation of a passive iron oxide layer on its surface.
However, over time and under certain conditions like carbonation, chloride ingress, and cracking this protective state can be compromised. Steel has areas with...
However, over time and under certain conditions like carbonation, chloride ingress, and cracking this protective state can be compromised. Steel has areas with...
579
01:24Reinforcement Schedules
504
Positive reinforcement is a powerful method for teaching new behaviors to both animals and humans. B.F. Skinner demonstrated this with his experiments using rats in a Skinner box. When a rat pressed a lever, it received a food pellet. This immediate reward encouraged the rat to repeat the behavior. This method, where a reward follows every instance of the behavior, is known as continuous reinforcement. It is highly effective for establishing new behaviors quickly.
Once a behavior is learned,...
Once a behavior is learned,...
504