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相关概念视频

Self-Discrepancy Theory02:45

Self-Discrepancy Theory

One influential perspective on what motivates people's behavior is detailed in Tory Higgin's self-discrepancy theory (Higgins, 1987). He proposed that people hold disagreeing internal representations of themselves that lead to different emotional states.
Self-Presentation: Self-Monitoring and Self-Handicapping02:05

Self-Presentation: Self-Monitoring and Self-Handicapping

People can go to great lengths to protect their self-image and present themselves in ways that they want others to see them. Sociologist Erving Goffman presented the idea that a person is like an actor on a stage. Calling his theory dramaturgy, Goffman believed that we use “impression management” to present ourselves to others as we hope to be perceived. Each situation is a new scene, and individuals perform different roles depending on who is present (Goffman, 1959). Think about the way you...
Strategies of Self-Presentation III: Self-Monitoring01:24

Strategies of Self-Presentation III: Self-Monitoring

Self-monitoring is a central construct in understanding individual differences in self-presentation strategies across social contexts. It refers to how individuals observe, regulate, and control their expressive behavior and self-presentation following situational cues. Self-monitoring reflects a person's sensitivity to social appropriateness and willingness to adapt behavior to fit varying interpersonal demands.High vs. Low Self-Monitoring IndividualsIndividuals high in self-monitoring are...
Self-Awareness and Its Effects01:21

Self-Awareness and Its Effects

Self-awareness is a psychological state in which the individual becomes the focal point of their attention. This inward focus transforms the self into an object of contemplation and assessment, influencing how individuals perceive their actions and their alignment with personal and societal standards.Triggers and Contexts for Self-AwarenessSelf-awareness can be activated by external stimuli that make individuals visually or audibly aware of themselves, such as mirrors, cameras, or recordings.
Protecting Self-Esteem01:27

Protecting Self-Esteem

Self-esteem, a central component of psychological well-being, is actively maintained through various cognitive and behavioral strategies. Individuals employ specific mechanisms to preserve a positive self-concept and mitigate threats to their self-worth, particularly in contexts involving social evaluation or personal feedback. Four primary techniques are commonly used to sustain self-esteem.Manipulating AppraisalsOne prominent strategy involves manipulating appraisals from others. Individuals...
Self-Regulation01:25

Self-Regulation

Self-regulation, also known as self-control, encompasses a range of cognitive and behavioral processes that allow individuals to adjust their internal states and outward actions to align with socially acceptable norms and long-term goals. It plays a fundamental role in adaptive functioning, from resisting impulsive behaviors to persisting through challenging tasks. While its benefits are widely recognized, self-regulation is not limitless. Muraven and Baumeister's theory posits that...

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相关实验视频

Updated: Jun 27, 2026

Combining Eye-tracking Data with an Analysis of Video Content from Free-viewing a Video of a Walk in an Urban Park Environment
08:25

Combining Eye-tracking Data with an Analysis of Video Content from Free-viewing a Video of a Walk in an Urban Park Environment

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弱监督的核细分与定点引导的注意力和自我监督的伪标签.

Yapeng Mo1, Lijiang Chen1, Lingfeng Zhang1

  • 1Institute of Electronic Information Engineering, Beihang University, 37 Xueyuan Road, Haidian District, Beijing 100191, China.

Bioengineering (Basel, Switzerland)
|January 24, 2025
PubMed
概括

这项研究引入了一种新的方法,用于精确的核细分,使用中心点预测和伪标签更新. 该方法有效地将相邻的核分离,并减少噪声,以改善临床应用中的自动化分析.

科学领域:

  • 医疗成像医学成像
  • 计算生物学 计算生物学
  • 人工智能的人工智能

背景情况:

  • 手动的核细分是劳动密集型的.
  • 弱监督的方法面临着邻近的核和杂的伪标签的挑战.

研究的目的:

  • 使用点监督开发精确的核细分方法.
  • 为了应对细分邻近核和减轻伪标签噪声的挑战.

主要方法:

  • 一个高斯核机制,用于多尺度的中心点预测,以分离相邻的核.
  • 一个以点为导向的注意力机制,以减少伪标签的噪音.
  • 一个指数移动平均 (EMA) 和k-means基于集群的标签更新机制来提高伪标签质量.

主要成果:

  • 在跨多个指标的三个公共数据集上实现了最先进的性能.
  • 证明了相邻细胞核的有效分离.
  • 显著减少了来自不准确伪标签的噪音的影响.

结论:

  • 拟议的方法提供了精确的核细分,并降低了注释成本.
  • 促进大规模数据集培训,并促进临床环境中的自动化分析.
关键词:
多尺度高斯核的高斯核原子核实例细分 细分一个点导向的注意力.伪标签更新 伪标签更新缺乏监督的学习学习.

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  • 减少对临床专家的依赖,以完成细分任务.