目的探讨随机森林算法在基因表达数据分类研究中的应用。
Objective We investigate the use of random forests for classification of gene expression data.
本文还以SURPASS为基分类器实现了随机森林，最后通过实验验证了随机森林的性质。
Also, this paper build a random forest based on SURPASS and verifies the character of random forest by doing some experiments.
随机森林包R显示在预测误差（）如果有新因素水平出现在测试数据。有什么方法可以避免这个错误?。
Random forest package in R shows error during prediction() if there are new factor levels present in test data. Is there any way to avoid this error?
在空间分布上，除栎类景观斑块趋于随机分布外，其余森林景观类型更趋于团聚分布，并在局部范围内形成集中分布区。
In spatial distribution, oak plaque landscape tend to random distribution, but other types of forest landscape tends to reunite distribution, and concentrated distribution is localized.
森林模型是由一层离散随机的不同种类的非球形粒子构成，非球形粒子的种类要区分树干、主枝、旁枝和树叶。
The forest model is composed of a layer of discrete random different types of non-spherical particles, including the type of trunk, main branch, often sprawling and leaves.
本文研究图g的子图空间g上的三类概率测度，它们分别刻画图的随机扩张树，随机扩张森林和随机连通子图。
We consider three types of probability measures on Q, the set of subgraphs of g, which govern a random spanning tree, a random spanning forest, and a random connected subgraph respectively.
森林火灾具有突发性、灾害发生的随机性、短时间内造成损失的巨大性等特点。
The forest fire usually breaks out abruptly and randomly, which always brings huge loss in a very short time.
在预测林火发生方面，考虑到人为火是发生森林火灾的主要原因，有很大随机性，因而采用了马尔科夫随机过程理论。
This study supported by mathematical method was from a new angle. For example, in the aspect of forest fire forecast, the main cause of forest fire was artificial fire, which had lots of randomness.
雷电做为一个随机干扰因子引发森林火灾，使对雷击火的预防与扑救变得更加困难。
Since lighting is random, it is very difficult to prevent and put out forest fire. We need to improve methods of …
雷电做为一个随机干扰因子引发森林火灾，使对雷击火的预防与扑救变得更加困难。
Since lighting is random, it is very difficult to prevent and put out forest fire. We need to improve methods of …
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