Firstly the classic method of the edge detection is introduced.

本文首先介绍了经典的边缘检测。

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As we all know, KNN method is a classic method in machine learning field and is also well used in many other fields.

众所周知，K最近邻方法作为机器学习领域的一个经典的方法，在很多领域都有出色的表现。

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Ray tracing is a classic method in synthesizing photorealistic image, It can accurately simulate the lighting effect of the whole scene.

而光线追踪是传统真实感图象合成的经典方法，能够精确模拟出景物的光照效果。

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To create breakthrough innovation in cooking is not by the classic scientific method of carefully-planned-in-advance-and-in-detail research, or teleological, activities, but through trial and error.

FORBES: For Innovation, Knowledge is a Poor Substitute for Experimentation