Research on the Choice of District Resolves Solution of Chinese Railway Reform and Restructuring

2014 ◽  
Vol 644-650 ◽  
pp. 5864-5867
Author(s):  
Zhao Hui
Keyword(s):  
Cluster Analysis ◽  
Hierarchical Cluster Analysis ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Hierarchical Cluster ◽  
Gray Scale ◽  
Comprehensive Evaluation Method ◽  
Balance Scale ◽  
Pros And Cons ◽  
Division Scheme

This paper, using the hierarchical cluster analysis and the gray scale comprehensive evaluation method, considering operating balance scale of regional companies, the proportion of inter-regional exchange of goods, compares the pros and cons of each division scheme and we find that seven regional companies is the most suitable for railway development.

Comprehensive Evaluation of Power Quality Based on the Integration of Rough Set and Evidence Theory

2013 ◽  
Vol 291-294 ◽  
pp. 1336-1345
Author(s):  
Shang Yuang Li
Keyword(s):  
Decision Making ◽  
Power Quality ◽  
Rough Set ◽  
Evaluation Method ◽  
Rough Set Theory ◽  
Comprehensive Evaluation ◽  
Evidence Theory ◽  
Comprehensive Evaluation Method ◽  
Basic Probability ◽  
Pros And Cons

In order to assess the power quality objectively and effectively, a comprehensive evaluation method of power quality based on rough set and D-S evidence theory has been proposed in this paper. The method combines rough set theory by means of defining the decision-making strength and expansion rules and using the decision-making table to obtain the basic probability assignment of D-S evidence theory, then by applying the fusion rules of evidence theory to integrate the various indicators of power quality, the pros and cons of ordering from each power quality evaluations can be obtained to achieve a comprehensive evaluation of power quality. The examples show that the results of power quality evaluation are more objective and rational by using this method. So it can prove the correctness and superiority of this method.

Extraordinary circumstances: Covid-19 – Italian Serie A scenario

2021 ◽  
pp. 175433712110192
Author(s):  
Milan Radojicic ◽  
Aleksandar Djokovic ◽  
Nikola Cvetkovic
Keyword(s):  
Cluster Analysis ◽  
Hierarchical Cluster Analysis ◽  
Hierarchical Cluster ◽  
Round Robin ◽  
The Past ◽  
Novel Approach ◽  
Round Robin Tournaments

Unpredictable and uncontrollable situations have happened throughout history. Inevitably, such situations have an impact on various spheres of life. The coronavirus disease 2019 has affected many of them, including sports. The ban on social gatherings has caused the cancellation of many sports competitions. This paper proposes a methodology based on hierarchical cluster analysis (HCA) that can be applied when a need occurs to end an interrupted tournament and the conditions for playing the remaining matches are far from ideal. The proposed methodology is based on how to conclude the season for Serie A, a top-division football league in Italy. The analysis showed that it is reasonable to play 14 instead of the 124 remaining matches of the 2019–2020 season to conclude the championship. The proposed methodology was tested on the past 10 seasons of the Serie A, and its effectiveness was confirmed. This novel approach can be used in any other sport where round-robin tournaments exist.

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