使用决策树进行R语言建模的例子，是模式表达领域的一个例子。(An example of R language modeling using decision tree algorithm)

使用R语言包进行神经网络建模的一个例子，是使用神经网络包进行建模的一个例子，用来学习(An example of neural network modeling using the R language package is an example of modeling using a neural network package for learning.)

ACM里面一道题目,Gone Fishing,也是算法分析研究的题型,就是如何在各个钓鱼点进行排列,然后可以获得最多的鱼(, Gone Fishing, a topic in ACM, is also an algorithm research topic, that is, how to arrange the fish at various fishing points, and then get the most fish.)