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相关概念视频

Assessment of the Gastrointestinal System II: Health Perception Pattern01:29

Assessment of the Gastrointestinal System II: Health Perception Pattern

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Assessing the gastrointestinal (GI) system is a complex process that begins with collecting subjective data. This data, collected through patient interviews, provides crucial insights into the patient's health history, perception patterns, and lifestyle habits, all contributing significantly to GI health.
Health Perception Patterns
Health perception patterns offer valuable insights into a patient's lifestyle habits and how they may impact their GI health. These patterns include:
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相关实验视频

Updated: Sep 13, 2025

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使用LightGBM和SHAP框架预测老年人的环境安全感知评估.

Shengzhen Wu1, Sichao Wu2, Jingru Chen1

  • 1College of Arts and Design, Jimei University, Xiamen, 361000, China.

Scientific reports
|July 28, 2025
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概括

老年人通常在城市的小公园里感到安全,植被显著增加了他们的安全感. 关键的视觉元素,如行人区和绿色影响这些感知.

关键词:
老年人对环境安全的看法机器学习 机器学习全景图像图像全景图像在口袋停车场.这就是 SHAP SHAP 的意思.城市规划是城市规划.

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科学领域:

  • 城市规划是城市规划.
  • 环境心理学环境心理学
  • 老年学是一门学科.

背景情况:

  • 全球人口老龄化需要了解城市公共空间中的老年人安全.
  • 口袋公园对于老年人的福祉和社会互动至关重要.
  • 安全的感知受到建筑和自然环境的影响.

研究的目的:

  • 识别口袋公园中的视觉元素,影响老年人的安全感知.
  • 分析公园设计与老年人安全感之间的关系.
  • 为设计包容性城市绿地提供基于数据的建议.

主要方法:

  • 来自29个口袋公园的全景图像的图像语义细分.
  • 结合手动评分和深度学习来创建数据集.
  • 在497张图像上使用LightGBM和SHAP工具进行分析.

主要成果:

  • 老年人对安全的看法通常是积极的,但在各个公园之间存在差异.
  • 确定了七个关键的视觉元素:行人区,汽车,墙,人,广告牌, parterre 和植被.
  • 植被显著提高了老年人的环境安全感知.

结论:

  • 口袋公园中的视觉元素在塑造老年人的安全感知方面发挥着至关重要的作用.
  • 园区规划人员可以利用这些发现,为老年人创造更安全,更包容的绿地.
  • 该研究为改善城市环境的老龄化人口提供了实际指导.