scholarly journals Mathematical Performance Evaluation Model for Mobile Network Firewall Based on Queuing

2018 ◽  
Vol 2018 ◽  
pp. 1-13
Author(s):  
Shichang Xuan ◽  
Dapeng Man ◽  
Jiangchuan Zhang ◽  
Wu Yang ◽  
Miao Yu
Keyword(s):  
Performance Evaluation ◽  
Mobile Networks ◽  
Queuing Theory ◽  
Evaluation Model ◽  
Discrete Event ◽  
Mobile Network ◽  
Performance Evaluation Model ◽  
Resource Allocation Scheme ◽  
Firewall System

While mobile networks provide many opportunities for people, they face security problems huge enough that a firewall is essential. The firewall in mobile networks offers a secure intranet through which all traffic is handled and processed. Furthermore, due to the limited resources in mobile networks, the firewall execution can impact the quality of communication between the intranet and the Internet. In this paper, a performance evaluation mathematical model for firewall system of mobile networks is developed using queuing theory for a multihierarchy firewall with multiple concurrent services. In addition, the throughput and the package loss rate are employed as performance evaluation indicators, and discrete-event simulated experiments are conducted for further verification. Lastly, experimental results are compared to theoretically obtained values to identify a resource allocation scheme that provides optimal firewall performance and can offer a better quality of service (QoS) in mobile networks.

Research on the Operating Performance Evaluation of Listed Companies Supplying Water and Gas Based on Factor Analysis

2011 ◽  
Vol 467-469 ◽  
pp. 543-548
Author(s):  
Jun Fei Chen ◽  
Xiao Lan Zhou
Keyword(s):  
Decision Making ◽  
Factor Analysis ◽  
Performance Evaluation ◽  
Evaluation Model ◽  
Operating Performance ◽  
Listed Companies ◽  
Development Potential ◽  
Model Based ◽  
Performance Evaluation Model

The operating performance of listed companies is the comprehensive response on their quality of assets, operating state, development potential and so on. In this paper, evaluating indexes system which was used to evaluate the operating performance was provided combining with the feature of supplying water and gas listed companies in China. The performance evaluation model based on the factor analysis is established. As a case, the performance of 18 listed companies supplying water and gas in China is selected and evaluated. The case shows that the model is effective and can provide a basis for decision-making for enterprises improving management.

scholarly journals Performance Evaluation Model for School Supervisors to Improve the Quality of Senior High Schools in the Special Region of Yogyakarta

2021 ◽  
Author(s):  
Lia Yuliana
Keyword(s):  
High School ◽  
Performance Evaluation ◽  
High Schools ◽  
High School Teachers ◽  
Evaluation Model ◽  
Average Score ◽  
School Teachers ◽  
Performance Evaluation Model ◽  
Special Region

This research aimed to: (1) develop a performance evaluation model for school supervisors; (2) examine the feasibility of the model; and (3) determine its effectiveness in improving the quality of senior high schools in the Special Region of Yogyakarta. This study used the research and development method. Data were collected through focus group discussions and questionnaires. Quantitative data were analyzed with the help of statistics and qualitative data through interactive models. A performance evaluation model for school supervisors to use to improve the quality of senior high schools in the Special Region of Yogyakarta was developed by implementing procedural development research. The guidelines for implementing the model were found to be feasible, with an average score of 4.30 or ‘excellent’, and the evaluation guide had an average score of 4.60 or ‘excellent’ as well. The readability of the instrument was scored by six school supervisors: it received an average score of 3.90, which was in the ‘good’ category. The evaluation guide was given a score of 4.00 (in the ‘good’ category), while the level of performance assessed by the six school supervisors was 1.94 or ‘very good’. The level of performance assessed by 10 high school teachers was 1.92 or ‘very good’. The findings also showed that the school supervisor level of performance, which was assessed by 20 school supervisors, had an average score of 1.88 (which was classified as ‘excellent’), and the performance assessed by 20 high school teachers was scored as 1.94, or ‘excellent’. The average performance of school supervisors was 95.50, which was categorized as ‘excellent’. Keywords: model, evaluation, performance, school supervisors, school quality

A new reliable performance evaluation model: IFB-IER–DEA

OPSEARCH ◽  
2019 ◽  
Vol 56 (1) ◽  
pp. 14-31 ◽  
Author(s):  
Shiva Moslemi ◽  
Hamidreza Izadbakhsh ◽  
Marzieh Zarinbal
Keyword(s):  
Performance Evaluation ◽  
Evaluation Model ◽  
Performance Evaluation Model ◽  
Reliable Performance
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