The online shopping has changed people＇s traditional mode of shopping. With more and more customers participate in online shopping, and the online shopping service providers need to improve the quality of service to ...The online shopping has changed people＇s traditional mode of shopping. With more and more customers participate in online shopping, and the online shopping service providers need to improve the quality of service to attract customers to improve customer satisfaction. Based on SERVQUAL model, this paper explores the association between various dimensions of service quality of the web-based shopping and customer satisfaction and service loyalty, and gives an analysis of the five dimensions of quality of service in the context of online shopping, the relationship between service quality and customer satisfaction and loyalty, and thus providing the reference for online shopping service.展开更多
Banking sector in Ethiopia is dominant and it is a dense competent area.Due to this the bank managements tend to continually found the strategies that enables them to be competent in this dense competition.These strat...Banking sector in Ethiopia is dominant and it is a dense competent area.Due to this the bank managements tend to continually found the strategies that enables them to be competent in this dense competition.These strategies often focus on handling of customers satisfaction to be strongly compete and pooling more customers.Because,service quality is relevant to keep up their competitive advantage and improve customer satisfaction.So,this study examine the handling of customers satisfaction and assessment of service qualities on Commercial Bank of Ethiopia(CBE)in Addis Ababa at East District by applying SERVQUAL model.This study used convenient and random sampling technique to select the sample respondents and 400 respondents were selected branches of CBE in Addis Ababa at east district.The data sources for this study are primary and secondary data sources.The questionnaires are used as primary data source,which are contained SERVQUAL model and the agreements were measured by applying the five Likert point scales.The correlation result revealed that all dimensions of service quality have a strong and significant statistical relationship with customer satisfaction.The quality of service offered by CBE no meets with the expectation of customer(customers satisfied in somewhat quality service).So,the bank needs to reform service quality for satisfy and attract unsatisfied customers.展开更多
The auto body process monitoring and the root cause diagnosis based on data-driven approaches are vital ways to improve the dimension quality of sheet metal assemblies. However, during the launch time of the process m...The auto body process monitoring and the root cause diagnosis based on data-driven approaches are vital ways to improve the dimension quality of sheet metal assemblies. However, during the launch time of the process mass production with an off-line measurement strategy, the traditional statistical methods are difficult to perform process control effectively. Based on the powerful abilities in information fusion, a systematic Bayesian based quality control approach is presented to solve the quality problems in condition of incomplete dataset. For the process monitoring, a Bayesian estimation method is used to give out-of-control signals in the process. With the abnormal evidence, the Bayesian network(BN) approach is employed to identify the fixture root causes. A novel BN structure and the conditional probability training methods based on process knowledge representation are proposed to obtain the diagnostic model. Furthermore, based on the diagnostic performance analysis, a case study is used to evaluate the effectiveness of the proposed approach. Results show that the Bayesian based method has a better diagnostic performance for multi-fault cases.展开更多
Timestamps play a key role in process mining because it determines the chronology of which events occurred and subsequently how they are ordered in process modelling.The timestamp in process mining gives an insight on...Timestamps play a key role in process mining because it determines the chronology of which events occurred and subsequently how they are ordered in process modelling.The timestamp in process mining gives an insight on process performance,conformance,and modelling.This therefore means problems with the timestamp will result in misrepresentations of the mined process.A few articles have been published on the quantification of data quality problems but just one of the articles at the time of this paper is based on the quantification of timestamp quality problems.This article evaluates the quality of timestamps in event log across two axes using eleven quality dimensions and four levels of potential data quality problems.The eleven data quality dimensions were obtained by doing a thorough literature review of more than fifty process mining articles which focus on quality dimensions.This evaluation resulted in twelve data quality quantification metrics and the metrics were applied to the MIMIC-ll dataset as an illustration.The outcome of the timestamp quality quantification using the proposed typology enabled the user to appreciate the quality of the event log and thus makes it possible to evaluate the risk of carrying out specific data cleaning measures to improve the process mining outcome.展开更多
Background:The FAVOR(Comparison of Quantitative Flow Ratio Guided and Angiography Guided Percutaneous Intervention in Patients with Coronary Artery Disease)III China trial demonstrated that percutaneous coronary inter...Background:The FAVOR(Comparison of Quantitative Flow Ratio Guided and Angiography Guided Percutaneous Intervention in Patients with Coronary Artery Disease)III China trial demonstrated that percutaneous coronary intervention(PCI)lesion selection using quantitative flow ratio(QFR)measurement,a novel angiography-based approach for estimating fractional flow reserve,improved two-year clinical outcomes compared with standard angiography guidance.This study aimed to assess the cost-effectiveness of QFR-guided PCI from the perspective of the current Chinese healthcare system.Methods:This study is a pre-specified analysis of the FAVOR III China trial,which included 3825 patients randomized between December 25,2018,and January 19,2020,from 26 centers in China.Patients with stable or unstable angina pectoris or those≥72 hours post-myocardial infarction who had at least one lesion with a diameter stenosis between 50%and 90%in a coronary artery with a≥2.5 mm reference vessel diameter by visual assessment were randomized to a QFR-guided strategy or an angiography-guided strategy with 1:1 ratio.During the two-year follow-up,data were collected on clinical outcomes,quality-adjusted life-years(QALYs),estimated costs of index procedure hospitalization,outpatient cardiovascular medication use,and rehospitalization due to major adverse cardiac and cerebrovascular events(MACCE).The primary analysis calculated the incremental cost-effectiveness ratio(ICER)as the cost per MACCE avoided.An ICER of¥10,000/MACCE event avoided was considered economically attractive in China.Results:At two years,the QFR-guided group demonstrated a reduced rate of MACCE compared to the angiography-guided group(10.8%vs.14.7%,P<0.01).Total two-year costs were similar between the groups(¥50,803±21,121 vs.¥50,685±23,495,P=0.87).The ICER for the QFR-guided strategy was¥3055 per MACCE avoided,and the probability of QFR being economically attractive was 64%at a willingness-to-pay threshold of¥10,000/MACCE avoided.Sensitivity analysis showed that QFR-guided PCI would become cost-saving if the cost of QFR were below¥3682(current cost:¥3800).Cost-utility analysis yielded an ICER of¥56,163 per QALY gained,with a 53%probability of being cost-effective at a willingness-to-pay threshold of¥85,000 per QALY gained.Conclusion:In patients undergoing PCI,a QFR-guided strategy appears economically attractive compared to angiographic guidance from the perspective of the Chinese healthcare system.展开更多
基金Acknowledgement This article was financially supported by the Fund of National Natural Science Foundation project： ＂Mass consumer service failures and remedial mechanisms＂ （Grant NO. 70872083）.
文摘The online shopping has changed people＇s traditional mode of shopping. With more and more customers participate in online shopping, and the online shopping service providers need to improve the quality of service to attract customers to improve customer satisfaction. Based on SERVQUAL model, this paper explores the association between various dimensions of service quality of the web-based shopping and customer satisfaction and service loyalty, and gives an analysis of the five dimensions of quality of service in the context of online shopping, the relationship between service quality and customer satisfaction and loyalty, and thus providing the reference for online shopping service.
文摘Banking sector in Ethiopia is dominant and it is a dense competent area.Due to this the bank managements tend to continually found the strategies that enables them to be competent in this dense competition.These strategies often focus on handling of customers satisfaction to be strongly compete and pooling more customers.Because,service quality is relevant to keep up their competitive advantage and improve customer satisfaction.So,this study examine the handling of customers satisfaction and assessment of service qualities on Commercial Bank of Ethiopia(CBE)in Addis Ababa at East District by applying SERVQUAL model.This study used convenient and random sampling technique to select the sample respondents and 400 respondents were selected branches of CBE in Addis Ababa at east district.The data sources for this study are primary and secondary data sources.The questionnaires are used as primary data source,which are contained SERVQUAL model and the agreements were measured by applying the five Likert point scales.The correlation result revealed that all dimensions of service quality have a strong and significant statistical relationship with customer satisfaction.The quality of service offered by CBE no meets with the expectation of customer(customers satisfied in somewhat quality service).So,the bank needs to reform service quality for satisfy and attract unsatisfied customers.
基金the National Natural Science Foundation of China(Nos.51405299 and 51175340)the Natural Science Foundation of Shanghai(No.14ZR1428700)
文摘The auto body process monitoring and the root cause diagnosis based on data-driven approaches are vital ways to improve the dimension quality of sheet metal assemblies. However, during the launch time of the process mass production with an off-line measurement strategy, the traditional statistical methods are difficult to perform process control effectively. Based on the powerful abilities in information fusion, a systematic Bayesian based quality control approach is presented to solve the quality problems in condition of incomplete dataset. For the process monitoring, a Bayesian estimation method is used to give out-of-control signals in the process. With the abnormal evidence, the Bayesian network(BN) approach is employed to identify the fixture root causes. A novel BN structure and the conditional probability training methods based on process knowledge representation are proposed to obtain the diagnostic model. Furthermore, based on the diagnostic performance analysis, a case study is used to evaluate the effectiveness of the proposed approach. Results show that the Bayesian based method has a better diagnostic performance for multi-fault cases.
文摘Timestamps play a key role in process mining because it determines the chronology of which events occurred and subsequently how they are ordered in process modelling.The timestamp in process mining gives an insight on process performance,conformance,and modelling.This therefore means problems with the timestamp will result in misrepresentations of the mined process.A few articles have been published on the quantification of data quality problems but just one of the articles at the time of this paper is based on the quantification of timestamp quality problems.This article evaluates the quality of timestamps in event log across two axes using eleven quality dimensions and four levels of potential data quality problems.The eleven data quality dimensions were obtained by doing a thorough literature review of more than fifty process mining articles which focus on quality dimensions.This evaluation resulted in twelve data quality quantification metrics and the metrics were applied to the MIMIC-ll dataset as an illustration.The outcome of the timestamp quality quantification using the proposed typology enabled the user to appreciate the quality of the event log and thus makes it possible to evaluate the risk of carrying out specific data cleaning measures to improve the process mining outcome.
基金This study is supported by grants from the National High Level Hospital Clinical Research Funding(Nos.2022-GSP-GG-20 and 2023-GSP-GG-3)the Capital’s Funds for Health Improvement and Research(No.2022-2-4033)the Chinese Academy of Medical Sciences(No.2022-I2M-C&T-A-009).
文摘Background:The FAVOR(Comparison of Quantitative Flow Ratio Guided and Angiography Guided Percutaneous Intervention in Patients with Coronary Artery Disease)III China trial demonstrated that percutaneous coronary intervention(PCI)lesion selection using quantitative flow ratio(QFR)measurement,a novel angiography-based approach for estimating fractional flow reserve,improved two-year clinical outcomes compared with standard angiography guidance.This study aimed to assess the cost-effectiveness of QFR-guided PCI from the perspective of the current Chinese healthcare system.Methods:This study is a pre-specified analysis of the FAVOR III China trial,which included 3825 patients randomized between December 25,2018,and January 19,2020,from 26 centers in China.Patients with stable or unstable angina pectoris or those≥72 hours post-myocardial infarction who had at least one lesion with a diameter stenosis between 50%and 90%in a coronary artery with a≥2.5 mm reference vessel diameter by visual assessment were randomized to a QFR-guided strategy or an angiography-guided strategy with 1:1 ratio.During the two-year follow-up,data were collected on clinical outcomes,quality-adjusted life-years(QALYs),estimated costs of index procedure hospitalization,outpatient cardiovascular medication use,and rehospitalization due to major adverse cardiac and cerebrovascular events(MACCE).The primary analysis calculated the incremental cost-effectiveness ratio(ICER)as the cost per MACCE avoided.An ICER of¥10,000/MACCE event avoided was considered economically attractive in China.Results:At two years,the QFR-guided group demonstrated a reduced rate of MACCE compared to the angiography-guided group(10.8%vs.14.7%,P<0.01).Total two-year costs were similar between the groups(¥50,803±21,121 vs.¥50,685±23,495,P=0.87).The ICER for the QFR-guided strategy was¥3055 per MACCE avoided,and the probability of QFR being economically attractive was 64%at a willingness-to-pay threshold of¥10,000/MACCE avoided.Sensitivity analysis showed that QFR-guided PCI would become cost-saving if the cost of QFR were below¥3682(current cost:¥3800).Cost-utility analysis yielded an ICER of¥56,163 per QALY gained,with a 53%probability of being cost-effective at a willingness-to-pay threshold of¥85,000 per QALY gained.Conclusion:In patients undergoing PCI,a QFR-guided strategy appears economically attractive compared to angiographic guidance from the perspective of the Chinese healthcare system.
