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→贝叶斯网络 Bayesian networks
A Bayesian network, belief network or directed acyclic graphical model is a probabilistic graphical model that represents a set of random variables and their conditional independence with a directed acyclic graph (DAG). For example, a Bayesian network could represent the probabilistic relationships between diseases and symptoms. Given symptoms, the network can be used to compute the probabilities of the presence of various diseases. Efficient algorithms exist that perform inference and learning. Bayesian networks that model sequences of variables, like speech signals or protein sequences, are called dynamic Bayesian networks. Generalizations of Bayesian networks that can represent and solve decision problems under uncertainty are called influence diagrams.
A Bayesian network, belief network or directed acyclic graphical model is a probabilistic graphical model that represents a set of random variables and their conditional independence with a directed acyclic graph (DAG). For example, a Bayesian network could represent the probabilistic relationships between diseases and symptoms. Given symptoms, the network can be used to compute the probabilities of the presence of various diseases. Efficient algorithms exist that perform inference and learning. Bayesian networks that model sequences of variables, like speech signals or protein sequences, are called dynamic Bayesian networks. Generalizations of Bayesian networks that can represent and solve decision problems under uncertainty are called influence diagrams.
一个'''贝叶斯网路 Bayesian Network'''、'''信念网络 Belief Network'''或'''有向无环图 Directed Acyclic Graph，DAG'''模型是一个概率图模型，代表一组随机变量及其条件独立与有向无环图。例如，贝叶斯网路可以表示疾病和症状之间的概率关系。在给定症状的情况下，该网络可用于计算各种疾病出现的概率。现有的高效算法可以执行推理和学习。贝叶斯网络模型的变量序列，如语音信号或蛋白质序列，被称为动态贝叶斯网络。而贝叶斯网络能够表示和解决不确定性决策问题的推广称为影响图。
==== 遗传算法 Genetic algorithms ====
==== 遗传算法 Genetic algorithms ====