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

Titrimetric Methods: Types and Commonly Used Strategies01:08

Titrimetric Methods: Types and Commonly Used Strategies

2.2K
In chemistry, titrimetric methods are broadly classified into three types: volumetric, gravimetric, and coulometric. Volumetric titrations involve measuring the volume of a titrant of known concentration that is required to react completely with an analyte. In gravimetric titrations, the standard solution reacts with the analyte to form an insoluble precipitate, which is filtered, dried, and weighed. In coulometric titrations, current is applied to an electrochemical reaction until the reaction...
2.2K

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

Correction: Luo et al. Dietary Anti-Aging Polyphenols and Potential Mechanisms. <i>Antioxidants</i> 2021, <i>10</i>, 283.

Antioxidants (Basel, Switzerland)·2026
Same author

Effect of acupuncture on monoaminergic neurotransmitters in animal models of vascular dementia: a preclinical systematic review and meta-analysis.

Frontiers in physiology·2026
Same author

The Impact of Adjuvant Radiotherapy Combined With Targeted or Immunotherapy on the Heart in Breast Cancer.

Thoracic cancer·2026
Same author

Ultrasound-Activated Prodrugs for Tumor-Specific Immunotherapy.

Journal of the American Chemical Society·2026
Same author

Wafer-scale monolayer dielectric integration on atomically thin semiconductors.

Nature materials·2026
Same author

Elevated asprosin in hypertension: evidence from an exploratory case-control study.

Scientific reports·2026

相关实验视频

Updated: May 6, 2026

Excitation-Scanning Hyperspectral Imaging Microscopy to Efficiently Discriminate Fluorescence Signals
00:07

Excitation-Scanning Hyperspectral Imaging Microscopy to Efficiently Discriminate Fluorescence Signals

Published on: August 22, 2019

8.0K

一个基于低测量成本的多策略高光谱图像分类方案.

Yu Bai1, Dongmin Liu1, Lili Zhang1

  • 1Electronic and Information Engineering, Shenyang Aerospace University, Shenyang 110136, China.

Sensors (Basel, Switzerland)
|October 26, 2024
PubMed
概括

本研究引入了一种多策略的三重网络分类器 (MSTNC),以改善使用有限的标记数据进行超谱图像 (HSI) 分类. 通过使用对比学习,主动学习和伪主动学习策略,MSTNC提高了准确性.

科学领域:

  • 遥感 遥感 遥感 遥感
  • 计算机视觉 计算机视觉
  • 机器学习 机器学习

背景情况:

  • 超光谱图像 (HSI) 分类至关重要,但由于像素注释的高成本而受到阻碍.
  • 在保持准确性的同时减少标记数据是HSI分类的一个关键挑战.

研究的目的:

  • 开发一种新的分类器,有效地解决HSI分类中的有限标记数据问题.
  • 改进学习策略,以提高特征提取和分类准确度.

主要方法:

  • 引入了多策略的三重网络分类器 (MSTNC),用于低样本依赖的对比学习.
  • 实施了一个主动学习策略,采用一种新的功能混合主动学习 (FMAL) 方法来选择有价值的像素.
  • 利用双门伪主动学习 (DSPAL) 来扩大培训集,而不会增加标签成本.

主要成果:

  • 与最先进的方法相比,MSTNC在基准HSI数据集上的各种标签比率上表现出优越的性能.
  • 在极端小样本条件下实现高整体精度 (例如,在IP时为82.97%,PU时为87.94%,WHU时为86.57%).

结论:

  • 拟议的MSTNC有效地减少了对标记数据的依赖,同时显著提高了HSI分类准确性.
关键词:
双策略伪活动学习 (DSPAL)基于特征混合的积极学习 (FMAL)超光谱图像 (HSI) 分类的分类.采用小样本的方式.三重网络分类器 (TNC) 是一个三重网络分类器.

更多相关视频

Author Spotlight: Unveiling the Potential of VSFG Microscopy in Studying Mesoscopically Heterogeneous Self-Assembled Structures
08:49

Author Spotlight: Unveiling the Potential of VSFG Microscopy in Studying Mesoscopically Heterogeneous Self-Assembled Structures

Published on: December 1, 2023

1.3K
Multimodal Optical Imaging Platform for Studying Cellular Metabolism
04:47

Multimodal Optical Imaging Platform for Studying Cellular Metabolism

Published on: June 6, 2025

46

相关实验视频

Last Updated: May 6, 2026

Excitation-Scanning Hyperspectral Imaging Microscopy to Efficiently Discriminate Fluorescence Signals
00:07

Excitation-Scanning Hyperspectral Imaging Microscopy to Efficiently Discriminate Fluorescence Signals

Published on: August 22, 2019

8.0K
Author Spotlight: Unveiling the Potential of VSFG Microscopy in Studying Mesoscopically Heterogeneous Self-Assembled Structures
08:49

Author Spotlight: Unveiling the Potential of VSFG Microscopy in Studying Mesoscopically Heterogeneous Self-Assembled Structures

Published on: December 1, 2023

1.3K
Multimodal Optical Imaging Platform for Studying Cellular Metabolism
04:47

Multimodal Optical Imaging Platform for Studying Cellular Metabolism

Published on: June 6, 2025

46
  • 对比学习,主动学习和伪主动学习的结合为HSI分类提供了一个强大的解决方案,注释有限.