scholarly journals Learning Bayesian Network Parameters from Small Data Set: A Spatially Maximum a Posteriori Method

Author(s):  
Zhi-gao Guo ◽  
Xiao-guang Gao ◽  
Ruo-hai Di ◽  
Yu Yang
IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 24979-24989
Author(s):  
Yongyan Hou ◽  
Enrang Zheng ◽  
Wenqiang Guo ◽  
Qinkun Xiao ◽  
Ziwei Xu

2009 ◽  
Vol 35 (8) ◽  
pp. 1063-1070 ◽  
Author(s):  
Shuang-Cheng WANG ◽  
Cui-Ping LENG ◽  
Xiao-Lin LI

2012 ◽  
Vol 2012 ◽  
pp. 1-17
Author(s):  
Mingmin Zhu ◽  
Sanyang Liu

Learning Bayesian network (BN) structure from data is a typical NP-hard problem. But almost existing algorithms have the very high complexity when the number of variables is large. In order to solve this problem(s), we present an algorithm that integrates with a decomposition-based approach and a scoring-function-based approach for learning BN structures. Firstly, the proposed algorithm decomposes the moral graph of BN into its maximal prime subgraphs. Then it orientates the local edges in each subgraph by the K2-scoring greedy searching. The last step is combining directed subgraphs to obtain final BN structure. The theoretical and experimental results show that our algorithm can efficiently and accurately identify complex network structures from small data set.


2012 ◽  
Vol 197 ◽  
pp. 271-277
Author(s):  
Zhu Ping Gong

Small data set approach is used for the estimation of Largest Lyapunov Exponent (LLE). Primarily, the mean period drawback of Small data set was corrected. On this base, the LLEs of daily qualified rate time series of HZ, an electronic manufacturing enterprise, were estimated and all positive LLEs were taken which indicate that this time series is a chaotic time series and the corresponding produce process is a chaotic process. The variance of the LLEs revealed the struggle between the divergence nature of quality system and quality control effort. LLEs showed sharp increase in getting worse quality level coincide with the company shutdown. HZ’s daily qualified rate, a chaotic time series, shows us the predictable nature of quality system in a short-run.


2015 ◽  
Author(s):  
Zhen Huang ◽  
Sabato Marco Siniscalchi ◽  
I-Fan Chen ◽  
Jinyu Li ◽  
Jiadong Wu ◽  
...  

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