频率学派(Frequentist):由大量试验得到的期望频率(致命缺陷:有些事情无法大量试验,例如一封邮件是垃圾邮件的概率,雷达探测的物体是一枚导弹的概率); 贝叶斯学派(Bayesian):基于已有信息而对预测结果的不确定性; 离散随机变量(Discrete Random Variables) 设X∈{x1,x2,...,xn}X∈{x1,x2,...,xn}为离散随机变量 ...
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Bayesian smoothing: max p(|data) = max p(, data) =p()p(data|) summary of half of the course (statistics) 600.465 - Intro to NLP - J. Eisner * Probability is Flexible We love probability distributions! We’ve learned how to define & use p(…) functions. ...
duality.Finallywereturntotheexamplesanddemonstratehowvariationalalgorithmscanbeformulatedineach case. Keywords:graphicalmodels,Bayesiannetworks,beliefnetworks,probabilisticinference,approximateinfer- ence,variationalmethods,meanfieldmethods,hiddenMarkovmodels,Boltzmannmachines,neuralnetworks ...
数据挖掘_Intro
“What features and statistics are characteristics of a texture pattern, so that texture pairs that share the same features and statistics cannot be told apart by pre-attentive human visual perception?” His quest was not answered partly due to the lack of general techniques for generating ...