Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Sampling Plans01:23

Sampling Plans

214
Sampling is a crucial step in analytical chemistry, allowing researchers to collect representative data from a large population. Common sampling methods include random, judgmental, systematic, stratified, and cluster sampling.
Random sampling is a method where each member of the population has an equal chance of being selected for the sample. It involves selecting individuals randomly, often using random number generators or lottery-type methods. For example, when analyzing the properties of a...
214
Decision Making: P-value Method01:09

Decision Making: P-value Method

5.5K
The process of hypothesis testing based on the P-value method includes calculating the P- value using the sample data and interpreting it.
First, a specific claim about the population parameter is proposed. The claim is based on the research question and is stated in a simple form. Further, an opposing statement to the claim  is also stated. These statements can act as null and alternative hypotheses:  a null hypothesis would be a neutral statement while the alternative hypothesis can...
5.5K
PD Controller: Design01:26

PD Controller: Design

288
In automotive engineering, car suspension systems often employ Proportional Derivative (PD) controllers to enhance performance. PD controllers are utilized to adjust the damping force in response to road conditions. A controller, acting as an amplifier with a constant gain, demonstrates proportional control, with output directly mirroring input.
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
288
Random Sampling Method01:09

Random Sampling Method

11.2K
Sampling is a technique to select a portion (or subset) of the larger population and study that portion (the sample) to gain information about the population. Data are the result of sampling from a population. The sampling method ensures that samples are drawn without bias and accurately represent the population. Because measuring the entire population in a study is not practical, researchers use samples to represent the population of interest. Among the various sampling methods used by...
11.2K
Cluster Sampling Method01:20

Cluster Sampling Method

12.0K
Appropriate sampling methods ensure that samples are drawn without bias and accurately represent the population. Because measuring the entire population in a study is not practical, researchers use samples to represent the population of interest.
To choose a cluster sample, divide the population into clusters (groups) and then randomly select some of the clusters. All the members from these clusters are in the cluster sample. For example, if you randomly sample four departments from your...
12.0K
Types of Global Positioning System Surveys01:30

Types of Global Positioning System Surveys

81
GPS surveying methods vary in application, accuracy, and data collection techniques, catering to diverse surveying and mapping needs. Static GPS, kinematic GPS, and real-time kinematic (RTK) surveying are widely used. Each technique offers distinct advantages.Static GPS involves placing one receiver at a known reference point and another at the target point. It collects exact positional data by observing multiple satellite ranges over an extended period, achieving centimeter-level accuracy for...
81

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Prognostic indicators of acute transverse myelitis in 39 children.

Pediatric neurology·2013
Same author

Comparison of hepatitis B prophylactic outcomes in living donor liver transplantation recipients who meet the Milan or UCSF criteria.

Hepatobiliary & pancreatic diseases international : HBPD INT·2013
Same author

Structural basis of PP2A activation by PTPA, an ATP-dependent activation chaperone.

Cell research·2013
Same author

An effective retro-cycloaddition of M3N@C80 (M = Sc, Lu, Ho) metallofulleropyrrolidines.

Chemical communications (Cambridge, England)·2013
Same author

Dibutyl phthalate-induced neurotoxicity in the brain of immature and mature rat offspring.

Brain & development·2013
Same author

The graft polymers from different species of lignin and acrylic acid: synthesis and mechanism study.

International journal of biological macromolecules·2013
Same journal

RETRACTED: Zhang et al. A Novel Framework for Reconstruction and Imaging of Target Scattering Centers via Wide-Angle Incidence in Radar Networks. <i>Sensors</i> 2025, <i>25</i>, 6802.

Sensors (Basel, Switzerland)·2026
Same journal

Enhancing Unsupervised Multi-Source Domain Adaptation for Person Re-Identification via Mixture of Experts and Graph-Based Relation.

Sensors (Basel, Switzerland)·2026
Same journal

Development of an Instrumented Glove for Palmar Pressure Assessment in Kayakers.

Sensors (Basel, Switzerland)·2026
Same journal

Development and Experimental Validation of an Autonomous IoT-Based Monitoring System for Real-Time Water Quality Assessment in the Amazon River.

Sensors (Basel, Switzerland)·2026
Same journal

Semi-Supervised Adversarial Learning Framework for Controller Area Network Bus Intrusion Detection.

Sensors (Basel, Switzerland)·2026
Same journal

Smart Optimization Method for Safety Signs in Innovative Manufacturing Environments Integrating Industrial Field IoT Sensors and Knowledge Graphs.

Sensors (Basel, Switzerland)·2026
查看所有相关文章

相关实验视频

Updated: Jul 23, 2025

The Modular Design and Production of an Intelligent Robot Based on a Closed-Loop Control Strategy
11:53

The Modular Design and Production of an Intelligent Robot Based on a Closed-Loop Control Strategy

Published on: October 14, 2017

11.7K

一个改进的分布式采样PPO算法基于Beta政策的持续全球路径规划方案.

Qianhao Xiao1, Li Jiang1, Manman Wang2

  • 1School of Electronic Engineering, XI'AN University of Posts&Telecommunications, Xi'an 710121, China.

Sensors (Basel, Switzerland)
|July 14, 2023
PubMed
概括
此摘要是机器生成的。

本研究介绍了一种新的基于Beta政策的分布式样本采集PPO算法,用于船舶导航. 这种方法提高了路径规划的稳定性,成功率,并且与传统方法相比,产生了更顺的路径.

关键词:
人工智能的人工智能是人工智能.深度学习是一种深度学习.路径规划路径规划路径规划强化学习是一种强化学习.

更多相关视频

A Novel Bayesian Change-point Algorithm for Genome-wide Analysis of Diverse ChIPseq Data Types
12:39

A Novel Bayesian Change-point Algorithm for Genome-wide Analysis of Diverse ChIPseq Data Types

Published on: December 10, 2012

11.4K
Operation of the Collaborative Composite Manufacturing CCM System
10:09

Operation of the Collaborative Composite Manufacturing CCM System

Published on: October 1, 2019

6.7K

相关实验视频

Last Updated: Jul 23, 2025

The Modular Design and Production of an Intelligent Robot Based on a Closed-Loop Control Strategy
11:53

The Modular Design and Production of an Intelligent Robot Based on a Closed-Loop Control Strategy

Published on: October 14, 2017

11.7K
A Novel Bayesian Change-point Algorithm for Genome-wide Analysis of Diverse ChIPseq Data Types
12:39

A Novel Bayesian Change-point Algorithm for Genome-wide Analysis of Diverse ChIPseq Data Types

Published on: December 10, 2012

11.4K
Operation of the Collaborative Composite Manufacturing CCM System
10:09

Operation of the Collaborative Composite Manufacturing CCM System

Published on: October 1, 2019

6.7K

科学领域:

  • 海上航行和机器人技术
  • 人工智能和机器学习

背景情况:

  • 在离散的行动空间中,传统的路径规划方法导致船舶导航策略不完整.
  • 路径规划的强化学习 (RL) 由于不平衡的样本采集和低于最佳的奖励函数而导致成功率较低.

研究的目的:

  • 为船舶航行制定一个改进的航线规划框架,以解决现有方法的局限性.
  • 提高基于RL的船舶航线规划策略的稳定性,成功率和效率.

主要方法:

  • 设计了一个Box2D物理引擎环境,具有奖励功能,优先考虑到达点的距离,并结合一个潜在场.
  • 利用近距离政策优化 (PPO) 作为全球路径规划的基准.
  • 提出了基于Beta策略的分布式抽样采集PPO算法,将分布式抽样采集的区域划分,以克服不平衡的数据.

主要成果:

  • 分布样本采集培训政策在PPO算法中表现出卓越的稳定性.
  • 行动采样的Beta政策实现了比高斯政策更高的路径规划成功率和奖励积累.
  • 与A*,IDA*和Dijkstra等传统算法相比,拟议的算法产生了更平滑的路径,用于相当的路径长度.

结论:

  • 基于Beta策略的分布式样本采集PPO算法在船舶导航路径规划方面取得了重大进展.
  • 这种新的方法有效地解决了基于RL的导航中不完整的策略,不平衡的样本和低于最佳的奖励的问题.