作者: Akbar Biglarian , Enayatollah Bakhshi , Ahmad Reza Baghestani , Mahmood Reza Gohari , Mehdi Rahgozar
DOI: 10.1155/2013/753930
关键词: Model building 、 Event (probability theory) 、 Computer science 、 sort 、 Artificial neural network 、 Proportional hazards model 、 Regression 、 Statistics 、 Nonlinear system 、 Censoring (statistics)
摘要: Survival analysis methods deal with a type of data, which is waiting time till occurrence an event. One common method to analyze this sort data Cox regression. Sometimes, the underlying assumptions model are not true, such as nonproportionality for model. In building, choosing appropriate depends on complexity and characteristics that effect appropriateness strategy, used nowadays frequently, artificial neural network (ANN) needs minimal assumption. This study aimed compare predictions ANN models by simulated sets, average censoring rate were considered 20% 80% in both simple complex All simulations comparisons performed R 2.14.1.