地图投影是现代地图学的重要组成部分, 涉及大量的椭圆函数幂级数展开, 隐函数复合函数微分,
椭圆积分, 复变函数运算等一系列烦琐的数学分析过程, 人工推导不但费时费力, 而且容易出错 …

Context The second law of thermodynamics is fundamental in landscape ecology, and
Shannon entropy has been employed as an important means of analyzing landscape …

The quality of an image affects its utility and image quality assessment has been a hot
research topic for many years. One widely used measure for image quality assessment is …

Sustainable development appears to be the theme of our time. To assess the progress of
sustainable development, a simple but comprehensive index is of great use. To this end, a …

ABSTRACT Information Theory of Cartography plays an important role in guiding map
design, generalization, and evaluation, and measurement of map information is the most …

Entropy is a central concept in thermodynamics and plays a fundamental role in
understanding nature. It is commonly computed using Shannon's equation, and has been …

As a symbol language, toponyms have inherited the unique local historical culture in the
long process of historical development. As the birthplace of Manchu, there are many …

Context Entropy is an important concept traditionally associated with thermodynamics and is
widely used to describe the degree of disorder in a substance, system, or process …

地图投影是地图学的重要研究内容. 任何地图投影都不可避免地存在变形问题.
针对地图投影的变形, 本文提出球面大圆弧和互补比率均值相结合的地图投影面积变形与形状 …

In order to improve the comparability between the geometric information content of vector
area objects, this article proposes a method for measuring the geometric information content …