scholarly journals The Evaluation Model of Network QoS Based on Intelligent Water Droplets Algorithm

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Fang Li ◽  
Yunlan Wang ◽  
Peng Li

In order to solve the problem of the user demands to the quality of service (QoS) of network, this paper provides a novel QoS evaluation model based on the intelligent water droplets (IWD) algorithm. The model firstly gives the evaluation indexes of network QoS and establishes a multiobjective optimization function for solution in combination with the improved IWD. Then, mathematical simulation is used to conduct the in-depth study of the key factors influencing the evaluation model. Compared with the other methods, the algorithm has shown better adaptability in the simulation results.

2020 ◽  
Vol 3 ◽  
pp. 36
Author(s):  
Marina Zaki ◽  
Marie Galligan ◽  
Lydia O'Sullivan ◽  
Declan Devane ◽  
Eilish McAuliffe

Trials can be defined as prospective human research studies to test the effectiveness and safety of interventions, such as medications, surgeries, medical devices and other interventions for the management of patient care. Statistics is an important and powerful tool in trials. Inappropriately designed trials and/or inappropriate statistical analysis produce unreliable results, with limited clinical use. The aim of this systematic literature review is to identify, describe and synthesise factors contributing to or influencing the statistical planning, design, conduct, analysis and reporting of trials. This protocol will describe the methodological approach taken for the following: conducting a systematic and comprehensive search for relevant articles, applying eligibility criteria for the inclusion of such articles, extracting data and information, appraising the quality of the articles, and thematically synthesizing the data to illuminate the key factors influencing statistical aspects of trials.


2021 ◽  
Vol 291 ◽  
pp. 05042
Author(s):  
Elena Okhrimenko ◽  
Olga Ergunova

The authors have identified the features of the international business tourism development; analyzed the main business tourism segments. The authors provide the rationale that it is business tourism that has a huge impact on the level of income and the sustainability of economic development. Business tourism can be classified as a profitable and promising type of tourism. The authors consider the key factors influencing the development of international business tourism and the economy of the respective territory; the features of the MICE industry and its impact on business tourism. The characteristic features of international business tourism have been investigated and substantiated; the factors influencing the development of business tourism infrastructure in foreign countries have been identified. The authors conducted a study and a comparative analysis of the expenditure on organizing business tourism; revealed the specifics of the business tourism infrastructure in European countries; the authors studied and analyzed external business relations, increased business activity, the quality of business infrastructure at the regional level and their impact on the development of business tourism and the economy.


1994 ◽  
Vol 10 (1) ◽  
pp. 70-87 ◽  
Author(s):  
Natalina Borghese ◽  
Ester Cole

This study is a qualitative examination of the perceptions of school psychologists and regular classroom teachers on various issues regarding the implementation of recommendations from psychoeducational assessments. Fifteen school psychologists and 25 teachers were interviewed for the study. Findings indicated that recommendations can be categorized into four main types that vary in terms of their implementability as perceived by psychologists, and their helpfulness and ease of implementation to teachers. Findings also revealed that participants found it difficult to provide a valid estimate of the proportion of recommendations actually implemented. Both teachers and psychologists identified the following factors that affect recommendation implementation: practical considerations, consultation practices, teacher personality, knowledge and attitudes, format for presenting recommendations, and type of referral problem. Psychologists also identified psychologist variables, quality of relationships and rapport, and teacher theoretical orientation as factors. Teachers stated that child variables, specificity of recommendations, and support from colleagues, parents, and the psychologist are key factors influencing implementation.


Author(s):  
Omid Khosravizadeh ◽  
Mohammad Zakaria Kiaei ◽  
Saeed Shahsavari ◽  
Nasibeh Mansouran Tazekand

Background: Identifying the key factors effective on outsourcing can play a significant role in helping healthcare decision makers to present solutions to improve the outsourcing situation. This study was conducted in order to systematically review the factors influencing the decision making to outsource the services of Iranian medical centers. Methods: Data was collected through searching for keywords in Google Scholar, PubMed, Scopus, Web of Science, Science direct, Magiran, SID and Irandoc databases from January 2010 to December 2020. Also, the quality of the studies was measured and verified by three experts utilizing the Strobe checklist. Researchers classified results achieved by the study. Results: 10 articles were selected that responded to the study's questions. 44 components in seven dimensions including (economic and financial components, components of laws and regulations (legal), components of supervision and control, components of service type, components of executive capability of the organization, components of the external environment of the organization and components human resources) were recognized on the decision to outsource services in medical centers in Iran. Conclusion: olicy makers at the decision-making level and managers at the executive level should consider the efficient components and dimensions before deciding to execute outsourcing in units according to the wanted structure, process and consequences, and then make the needed decision regarding the implementation.  


2020 ◽  
Vol 3 ◽  
pp. 36
Author(s):  
Marina Zaki ◽  
Marie Galligan ◽  
Lydia O'Sullivan ◽  
Declan Devane ◽  
Eilish McAuliffe

Clinical trials can be defined as prospective human research studies to test the effectiveness and safety of interventions, such as medications, surgeries, medical devices and other interventions for the management of patient care. Statistics is an important and powerful tool in clinical trials. Inappropriately designed trials and/or inappropriate statistical analysis produce unreliable results, with limited clinical use. The aim of this systematic literature review is to identify, describe and synthesise factors contributing to or influencing the statistical planning, design, conduct, analysis and reporting of clinical trials. This protocol will describe the methodological approach taken for the following: conducting a systematic and comprehensive search for relevant articles, applying eligibility criteria for the inclusion of such articles, extracting data and information, appraising the quality of the articles, and thematically synthesizing the data to illuminate the key factors influencing statistical aspects of clinical trials.


2018 ◽  
Vol 2018 ◽  
pp. 1-13 ◽  
Author(s):  
Zhen Lv ◽  
Changgen Peng ◽  
Yanguo Peng ◽  
Junwei Zhang

P2P network is one of the most extensive network frameworks for wireless sensor network (WSN) in Internet of Things (IoT). The peers in WSN are rational and often free ride to save power of electricity and calculation, due to the fact that the usability is of great variability and unpredictability. Such a phenomenon tremendously reduces the quality of service (QoS) in WSN. Rational exchange protocol aims at promoting QoS and guaranteeing security and fairness. However, existing schemes have taken only complete information into account, which is not up to realistic environment. The peers in realistic environment indeed possess incomplete information, which is, however, still not thoroughly investigated so far. In this paper, under asymmetric information (a typical incomplete information), an entropy based incentive model is well designed based on Markov model and QoS evaluation model to help peers cooperate in WSNs. A concrete utility function with entropy is constructed to evaluate decision utility in P2P network. Finally, an entropy based rational exchange protocol is proposed based on the presented incentive model and concrete utility function, with analysis of correctness, security, fairness, and robustness, respectively. The proposed protocol can facilitate rational peers positively and sensibly participating in services and prevent free riding for rational peers. Hence, it further promotes QoS and guarantees security and fairness simultaneously in WSNs.


2012 ◽  
Vol 40 (1) ◽  
pp. 5-14 ◽  
Author(s):  
Jinsong Huang ◽  
Rong Chen ◽  
Xia Wang

Interpersonal short video forwarding is currently one of the most popular activities of Internet users. One of the key factors that affects this online interpersonal behavior is forwarding intention. In this study, a quality perception → benefit expectation → intention model was proposed to explain the formation of video forwarding intention. To test the model data were collected from 210 undergraduate students. The results showed that perceptions of the quality of the content and empathy affect 3 benefit expectations of control, inclusion, and affection. In addition, control, inclusion, and affection affect forwarding intention.


2019 ◽  
Vol 9 (3) ◽  
pp. 321-335 ◽  
Author(s):  
Abdul Haseeb Aamir Sheikh ◽  
Muhammad Ikram ◽  
Rana Mamoon Ahmad ◽  
Hamza Qadeer ◽  
Muhammad Nawaz

Purpose The quality of construction projects is mainly dependent on the process quality during the construction phase than product quality. The key factors that influence the process quality of building projects in Pakistan during the construction phase of building life cycle are evaluated from literature. This paper aims to discuss these issues. Design/methodology/approach The factors were ranked using the traditional relative importance index (RII) and the second synthetic grey relational analysis method. The findings indicate that during the construction phase the selection of an appropriate contractor is the most important factor. The existence of feedback system and quality of shop drawings received from subcontractors are also very significant factors, according to the grey relational model. Findings Measures for the improvement of process quality in Pakistan are suggested. The results from both methods are not entirely comparable; however, if one considers uncertainty in data, then the second synthetic GRA-based ranking should be preferred over RII in decision making. Originality/value The study is pioneer in the evaluation of key factors influencing process quality during building construction projects in Pakistan using a set of traditional and novel methods. The results of this study are significant in improving the process quality during different phases of construction.


2012 ◽  
Vol 488-489 ◽  
pp. 1094-1100
Author(s):  
Zhao En Wang ◽  
Jia Liang Liu

As the name implies, the quality of service(QoS) often reflects the service consumer satisfaction with the services provided by the service provider. In computer systems, particularly in the computer network system, as the providers of the computing and information services, It is necessary to consider the cloud user’s suitability in the process of different physical implementation in the same functional service when constructing the server cluster in the cloud. This paper is for the cloud, build a service quality model oriented user request and the implementation process, completed the choice for the physical implementation with the best users fit service.


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