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Updated: Jul 17, 2026

Automatic Image Processing to Determine the Community Size Structure of Riverine Macroinvertebrates
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使用智能手机应用程序和公民科学与基于深度学习的图像处理相结合,量化城市垃圾

Shin'ichiro Kako1, Ryunosuke Muroya2, Daisuke Matsuoka1

  • 1Graduate School of Science and Engineering, Department of Engineering, Ocean Civil Engineering Program, Kagoshima University, 1-21-40 Korimoto, Kagoshima, Kagoshima 890-0065, Japan; Center for Earth Information Science and Technology, Research Institute for Value-Added-Information Generation, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 3173-25, Showa-machi, Kanazawa-ku, Yokohama, Kanagawa 236-0001, Japan.

Waste management (New York, N.Y.)
|June 29, 2024
PubMed
概括

公民科学通过Pirika智能手机应用程序和深度学习有效量化城市街道垃圾. 这种方法可视化和描述塑料污染,有助于环境管理.

关键词:
公民科学是公民科学.深度学习是一种深度学习.海洋污染 海洋污染对象检测检测对象检测对象检测这是一个智能手机应用程序.街上的垃圾就是街上的垃圾.

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Linear Approximations01:23

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For a differentiable function of two variables, linear approximation estimates values near a known point by replacing the curved surface with its tangent plane. Consider the function\begin{equation*}f(x,y)=x^2+3y^2\end{equation*}near the point (2, 1). The exact value at this point is f(2, 1) = 22 + 3(1)2 = 4 + 3 = 7.The linear approximation of f(x, y)) near (a, b) is\begin{equation*}L(x,y)=f(a,b)+f_x(a,b)(x-a)+f_y(a,b)(y-b)\end{equation*}First, compute the partial derivatives: fx(x, y) = 2x and...